Small Business Innovation Research (sbir) 10. 3 - 13


Improved Cryogenic Cooling Technology


TECHNOLOGY AREAS: Ground/Sea Vehicles, Sensors


The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), which controls the export and import of defense-related material Small Business Innovation Research (sbir) 10. 3 - 13 and services. Offerors must disclose any proposed use of foreign nationals, their country of origin, and what tasks each would accomplish in the statement of work in accordance with section 3.5.b.(7) of the Small Business Innovation Research (sbir) 10. 3 - 13 solicitation.


OBJECTIVE: Improve jitter, mass and/or power aspects of space electro-optical payloads by improving components of the cryocooling system; e.g., by improvements in heat transfer within/among Small Business Innovation Research (sbir) 10. 3 - 13 critical components.


DESCRIPTION: Next-generation, missile-midcourse-detection, infrared-sensing technologies and on-board cryogenic cooling needs will require improvements in component level technology that reduce payload jitter, mass, and power budgets through improved Small Business Innovation Research (sbir) 10. 3 - 13 thermal management of cooling loads and rejected heat. The issues associated with gimbaled sensor systems are of particular interest. Specific areas of interest are: (1) pumped or wicked cryogenic cooling load transfer Small Business Innovation Research (sbir) 10. 3 - 13 devices capable of transferring significant (2-10 W) cooling loads across a two-axis gimbal, flexible joint, or to multiple locations on a spacecraft; (2) cryocooler component improvements; (3) thermal control devices for high density microcircuits; and (4) the Small Business Innovation Research (sbir) 10. 3 - 13 control electronics associated with any active devices. All devices must be capable of 10-years operation in a space environment, including 300 Krad total dose of radiation (ionizing and proton).

Some notional system within Small Business Innovation Research (sbir) 10. 3 - 13 which the improved component will operate must be described. The nominal rejection sink of a usual payload is at 250-325 K, and the minimal continuous duty lifetime is 10 years. Two-axis gimbals operate Small Business Innovation Research (sbir) 10. 3 - 13 across 0-359 degrees in azimuth and 0-90 degrees in elevation. High heat flux microcircuits of interest are the radiation-hardened versions of various Field Programmable Gate Arrays (FPGAs) and variants of Small Business Innovation Research (sbir) 10. 3 - 13 the Power Personal Computer (PC) Central Processing Unit (CPU). Proposals concerned with waste heat rejection from, or cooling load transfer to, refrigerated cryogenic sensors must describe how the thermodynamic system notionally proposed supports 35 or 110 K Small Business Innovation Research (sbir) 10. 3 - 13 focal plane cooling needs on the order of 2 or 12 W and 85 or 170 K optics cooling needs on the order of 20 W, or waste heat rejection on the order of 500 W. Multistage refrigeration Small Business Innovation Research (sbir) 10. 3 - 13 is therefore an explicit requirement in these payloads. Showing how the component improvement would benefit currently available designs for space electro-optical (EO) payload, either as efficiency improvements or as reductions Small Business Innovation Research (sbir) 10. 3 - 13 in payload budgets, must be discussed in the proposal.

Mass improvements for gimbaled payloads are currently assessed relative to the following payload trade budgets:

-- 0.3 kg/W of heat rejection for rejection Small Business Innovation Research (sbir) 10. 3 - 13 radiator

-- 0.2 kg/W of power input

-- 30% of refrigerator mass and radiator for on-gimbal cooling

Consequently, moving a 100 W refrigerator of 10 kg mass off-gimbal would save 0.3 x [10+ (0.3 x 100)] = 12 kg of payload mass. An alternative Small Business Innovation Research (sbir) 10. 3 - 13 to save this same 12 kg mass penalty would be to increase cooling efficiency on gimbal so that the power input would be only 45.5 W. It should be obvious from this analysis approach Small Business Innovation Research (sbir) 10. 3 - 13 that controlling size (up to an upper linear dimension limit of 2 meters) or component intrinsic mass is not a primary objective of this topic; instead, payload mass savings in excess of 10 kg are Small Business Innovation Research (sbir) 10. 3 - 13 the prime mass objective.


The applications of this technology could potentially be far-reaching, with large market potential due to the increased efficiency and. to a lesser extent, the expected reduction in mass Small Business Innovation Research (sbir) 10. 3 - 13 for cryogenic coolers. The need for high-reliability cryocoolers for terrestrial applications includes cellular bay station cooling and magnetic resonance imaging.


PHASE I: Develop fundamental concepts for increased efficiency Small Business Innovation Research (sbir) 10. 3 - 13 or reduced mass, jitter, or power input of space cryocoolers, via a process or fundamental physical principle. Offerors are encouraged to work with system, payload, and/or refrigeration contractors to ensure applicability Small Business Innovation Research (sbir) 10. 3 - 13 of their efforts.


PHASE II: Design/develop/construct a breadboard device to demonstrate the innovation. Although not required to be optimized to flight levels, approach should demonstrate the potential of the prototype device Small Business Innovation Research (sbir) 10. 3 - 13 to meet actual operational specifications, including potential improvements in efficiency or reduction in mass using commercially-available, high-heat-flux parts.


^ PHASE III DUAL USE COMMERCIALIZATION:

Military Application: Transfer of cooling over gimbals Small Business Innovation Research (sbir) 10. 3 - 13, flexible joints, and to multiple payloads or loads from a single cooler; ability of the cooling system to rebalance loads vs. temperatures over system life; jitter.

Commercial Application: NASA and the Small Business Innovation Research (sbir) 10. 3 - 13 commercial sector for space and airborne uses such as surveillance, astronomy, weather monitoring, and earth resource monitoring; efficient temperature control of computer processors.


REFERENCES:

1. Robert, T., and F. Roush, "USAF Thermal Management Small Business Innovation Research (sbir) 10. 3 - 13 System Needs", Cryocoolers 15, the Proceedings of the 15th International Cryocooler Conference, 2008.

2. Davis, T. M., J. Reilly, and B. J. Tomlinson, "Air Force Research Laboratory Cryocooler Technology Development," Cryocoolers 10, R. G. Ross, Jr., Ed Small Business Innovation Research (sbir) 10. 3 - 13., Plenum Press, New York, pp. 21-32, 1999.

3. Roberts, T., and F. Roush, "Cryogenic Refrigeration Systems as an Enabling Technology in Space Sensing Missions", Proceedings of the International Cryocooler Conference 14, Cryocoolers 14, 2007.

4. Rich, Michael, Marko Stoyaniff, and Small Business Innovation Research (sbir) 10. 3 - 13 Dave Glaister, "Trade Studies on IR Gimbaled Optics Cooling Technologies," IEEE Aerospace Applications Conference Proceedings, v. 5, p. 255-267, Snowmass at Aspen, CO, 21-28 Mar 1998.

5. Razani, A., et al, “A Power Efficiency Diagram for Performance Small Business Innovation Research (sbir) 10. 3 - 13 Evaluation of Cryocoolers”, Adv. in Cryo. Eng., v. 49B, Amer. Inst. of Physics, Melville, NY; p. 1527-1535, 2004.


KEYWORDS: cryocooler, cryogenic, infrared sensors, space systems, sensors, materials


^ AF103-073 TITLE: High-Power Satellite Small Business Innovation Research (sbir) 10. 3 - 13 Communications Traveling Wave Tube Amplifier


TECHNOLOGY AREAS: Sensors, Space Platforms


The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), which controls the export and import of defense-related material and services Small Business Innovation Research (sbir) 10. 3 - 13. Offerors must disclose any proposed use of foreign nationals, their country of origin, and what tasks each would accomplish in the statement of work in accordance with section 3.5.b Small Business Innovation Research (sbir) 10. 3 - 13.(7) of the solicitation.


OBJECTIVE: Develop super-high-frequency (SHF) (20.2 - 21.2 GHz) high-power (>80W) Traveling Wave Tube Amplifier (TWTA) suitable for use in satellite communications applications.


DESCRIPTION: The availability of high-data-rate satellite communications Small Business Innovation Research (sbir) 10. 3 - 13 (SATCOM) will likely be critical to future battlefield operations for the foreseeable future. The need for high-data-rate, intra-theater satellite communications for assured access of sensor intelligence for use by ships Small Business Innovation Research (sbir) 10. 3 - 13-at-sea, small units and forces-on-the-move operating in dense foliage areas will likely grow in significance. Sophisticated jamming and/or nuclear effects will pose an additional threat to the Small Business Innovation Research (sbir) 10. 3 - 13 availability of in-theater satellite communications. To meet these challenges, the Air Force is interested in developing a high-performance traveling wave tube amplifier (TWTA) capable of operating in a Small Business Innovation Research (sbir) 10. 3 - 13 space environment with sufficient output power to provide the high-data-rate links with small, disadvantaged terminals that will likely find increasing use in tomorrow’s battlefields. The TWTA should be Small Business Innovation Research (sbir) 10. 3 - 13 light-weight, power-efficient, compact and capable of operating between 20.2 GHz and 21.2 GHz, with good linearity and intermodulation performance. The TWTA should be capable of delivering an output power >80 Watts, with a gain at Small Business Innovation Research (sbir) 10. 3 - 13 rated power of 55 dB (min), and gain flatness of +/- 1.0 dB (max) at rated power. Additional goals include: input impedance of 50 ohms, Voltage Standing Wave Ratio (VSWR) of 2.5:1 (typ), Load VSWR Small Business Innovation Research (sbir) 10. 3 - 13 2.0:1 (max), harmonic content of –3 dBc or less, spur suppression of –50 dBc (decibels reference to the carrier), saturated efficiency > 60%, gain stability +/-.25 dB/24 hrs, reliability consistent with 15-year satellite Mean Mission Duration (MMD), operating temperature range Small Business Innovation Research (sbir) 10. 3 - 13 –40 deg C to +85 deg C, and radiation total dose tolerance > 1Mrad(Si).


PHASE I: Conduct feasibility and concept studies. Develop innovative design for SHF TWTA, meeting technical objectives for output power, gain, and Small Business Innovation Research (sbir) 10. 3 - 13 linearity. Investigate fabrication techniques.


PHASE II: Fabricate prototype TWTA and characterize for output power, gain, linearity and power efficiency.


PHASE III DUAL USE COMMERCIALIZATION: Military Application: DoD satellite communications Small Business Innovation Research (sbir) 10. 3 - 13 using radio frequencies (RF) at 81-86 GHz would benefit from this technology.


Commercial Application: Wireless communications and commercial satellite industries would benefit from this technology.


REFERENCES:

1. Goebel, D., et al, "Development of Linear Traveling Wave Small Business Innovation Research (sbir) 10. 3 - 13 Tubes for Telecommunications Applications," IEEE Transactions on Electron Devices, Vol. 48, No. 1, pp. 74-81, Jan. 2001.


2. Robbins, N. R., J. A. Christensen, and U. R. Hallsten, “Performance and reliability advances in TWTA high power amplifiers for Small Business Innovation Research (sbir) 10. 3 - 13 communications satellites,” MILCOM 2005, pp. 1887-1890, Vol. 3, 2006.


KEYWORDS: satellite communications, traveling wave tube amplifier, S-band, power added efficiency, high power, high data rate


^ AF103-074 TITLE: E-band Traveling Wave Tube Amplifer with Small Business Innovation Research (sbir) 10. 3 - 13 Carbon Nanotube Cathode


TECHNOLOGY AREAS: Sensors, Space Platforms


The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), which controls the export and import of defense-related material Small Business Innovation Research (sbir) 10. 3 - 13 and services. Offerors must disclose any proposed use of foreign nationals, their country of origin, and what tasks each would accomplish in the statement of work in accordance with section 3.5.b.(7) of the solicitation.


OBJECTIVE Small Business Innovation Research (sbir) 10. 3 - 13: Develop a Carbon Nanotube (CNT) cathode E-band (71-76 GHz) space-qualifiable Traveling Wave Tube Amplifier (TWTA) suitable for use in satellite communications.


DESCRIPTION: While traveling wave tube amplifiers (TWTA's) have Small Business Innovation Research (sbir) 10. 3 - 13 long served as a primary technology in satellite communications, their use has largely been restricted to the ultra-high frequency (UHF), super-high frequency (SHF) and extremely-high frequency (EHF) bands Small Business Innovation Research (sbir) 10. 3 - 13. In order to exploit spectrum available in the millimeter wavelengths for high data rate battlefield communications, the Air Force seeks research into innovative TWTA designs utilizing CNT cathodes in the 71-76 GHz Small Business Innovation Research (sbir) 10. 3 - 13 band. Advantages include access to the 5 GHz of spectrum to enabling satellite communications uplinks to operate at multi-gigabit per second data rates and well understood weather attenuation factors, such as rain fade, allowing link Small Business Innovation Research (sbir) 10. 3 - 13 budgets to be effectively realized. The objective of this topic is to support the development of CNT-based E-band TWTA. Goals include: output power > 50 W, output frequency 71 to 76 GHz Small Business Innovation Research (sbir) 10. 3 - 13, power added efficiency > 20%, weight 1 Mrad(Si), and operating temperature range -40 to +80 degrees Centigrade.


PHASE I: Develop design of CNT E-band TWTA and validate through modeling and simulation. Demonstrate the feasibility of fabricating CNT Small Business Innovation Research (sbir) 10. 3 - 13 cathode.


PHASE II: Fabricate CNT E-band TWTA prototype and characterize for output power, operating frequency range, linearity, operating temperature range, radiation tolerance and reliability.


^ PHASE III DUAL USE COMMERCIALIZATION Small Business Innovation Research (sbir) 10. 3 - 13:

Military Application: Military applications include satellite communications and avionics.

Commercial Application: Small, compact E-band power amplifiers could create new markets in bandwidth-intensive commercial communication arenas such as cellular and Small Business Innovation Research (sbir) 10. 3 - 13 wideband mobile communications and high speed data transfer.


REFERENCES:

1. Wong, Y. M., W. P. Kang, J. L. Davidson, B. K. Choi, W. Hofmeister, and J. H. Huang, "Array geometry, size and spacing effects on field Small Business Innovation Research (sbir) 10. 3 - 13 emission characteristics of aligned carbon nantobues", Diamond & Rel. Mat., 14, 2078, 2005.


2. Manohara, H. M., M. J. Bronikowski, M. Hoenk, B. D. Hunt, and P. H. Siegel, "High-current-density field emitters Small Business Innovation Research (sbir) 10. 3 - 13 based on arrays of carbon nanotube bundles", J. Vac. Sci. Technol. B, 23, 1, 2005.


3. Spindt, C. A., C. E. Holland, A. Rosengreen, and I. Brodie, "Field-emitter arrays for vacuum microelectronics," Trans. Electron Dev., Vol. 38, 10, pp. 2355-2363, 1991.


KEYWORDS Small Business Innovation Research (sbir) 10. 3 - 13: E-band, carbon nanotube, traveling wave tube, linearity, power added efficiency, satellite communications


^ AF103-075 TITLE: E-band Gimbaled Dish Antenna


TECHNOLOGY AREAS: Electronics, Space Platforms


The technology within this topic is restricted under the International Small Business Innovation Research (sbir) 10. 3 - 13 Traffic in Arms Regulation (ITAR), which controls the export and import of defense-related material and services. Offerors must disclose any proposed use of foreign nationals, their country of origin Small Business Innovation Research (sbir) 10. 3 - 13, and what tasks each would accomplish in the statement of work in accordance with section 3.5.b.(7) of the solicitation.


OBJECTIVE: Develop an E-band (71-76 GHz) gimbaled dish antenna (GDA) suitable for the next generation Small Business Innovation Research (sbir) 10. 3 - 13 of satellite communications.


DESCRIPTION: Beyond-Line-of-Sight (BLOS) Airborne Intelligence, Surveillance and Reconnaissance (AISR) has been shown highly effective in support of multiple field operations, and the amount of satellite Small Business Innovation Research (sbir) 10. 3 - 13 communications (SATCOM) bandwidth designated to support of AISR is likely to grow for the foreseeable future, particularly since SATCOM provides an ideal mechanism to transport data from BLOS focal planes to the Small Business Innovation Research (sbir) 10. 3 - 13 continental United States (CONUS) for analysis of sensor-collected information. Current state of the art designs lack the necessary performance to meet the aggregate needs of mission operations. Due to Small Business Innovation Research (sbir) 10. 3 - 13 the inevitable bandwidth restrictions on future generations of BLOS missions with high-resolution focal planes, the Air Force seeks innovative, lightweight and robust Gimbal Dish Antenna designs encompassing feed horns, reflectors, and Small Business Innovation Research (sbir) 10. 3 - 13 gimbals, that are suitable for use in long-term geosynchronous earth orbit (GEO) SATCOM applications in the 71-76 GHz band. Goals for the design of these items include: >20 years of design life in Small Business Innovation Research (sbir) 10. 3 - 13 a GEO orbit; survive launch conditions; directivity >24dB; circular polarization; insertion loss 1MRad TID; -40C to +80C temperature range for operation; 300lbft² mass support; azimuth and elevation range excursion of > 10°; a slew rate of > 4 degrees Small Business Innovation Research (sbir) 10. 3 - 13/sec; position error < 0.005 degrees. Designs should also address interference issues with other spacecraft subsystems, including electromagnetic interference (EMI) and electromagnetic compatibility (EMC). Designs concepts are not limited to any specific bearing or Small Business Innovation Research (sbir) 10. 3 - 13 non-bearing technology for gimbal operation.


PHASE I: Develop familiarity with current and projected gimbaled satellite dish requirements. Develop preliminary two-axis design. Validate design through modeling and simulation.


PHASE Small Business Innovation Research (sbir) 10. 3 - 13 II: Develop two GDA prototypes and characterize for slew rate, excursion angles, pointing accuracy, power consumption, and operating temperature range.


^ PHASE III DUAL USE COMMERCIALIZATION:

Military Application: The Advanced Extremely High Frequency Small Business Innovation Research (sbir) 10. 3 - 13 (AEHF) and Wideband Global SATCOM programs could benefit from this research.

Commercial Application: Commercial satellite programs such as Iridium and Globalstar could also benefit from this research.


REFERENCES:

1. Schoob, R., and J. Bichsel, “Vector Small Business Innovation Research (sbir) 10. 3 - 13 Control of the Bearingless Motor,” Proc. Fourth Int. Symposium of Magnetic Bearings, ETH Zurich, pp. 327-332, Aug. 1994.


2. de Maagt, P., and G. Crone, “(Sub)Millimetre Wave Antenna Technology for Upcoming ESA Small Business Innovation Research (sbir) 10. 3 - 13 Missions,” AP2000 Millennium Conference on Antennas and Propagation, Davos, Switzerland, April 2000.


KEYWORDS: gimbaled dish antenna, reflector, gimbal, feed horn, slew rate, pointing accuracy, two-axis stabilized, satellite communications


^ AF103-076 TITLE: High-Power Satellite Communications (SATCOM Small Business Innovation Research (sbir) 10. 3 - 13) Optical Transceiver


TECHNOLOGY AREAS: Sensors, Space Platforms


OBJECTIVE: Develop programmable optical data receiver to convert optical signal to electrical data stream.


DESCRIPTION: Forward compatibility (i.e., the flexibility of a payload system to Small Business Innovation Research (sbir) 10. 3 - 13 adapt to emerging requirements during a satellite’s mission lifetime) allows mission planners to alter satellite operational characteristics to meet new mission needs. In the case of an unmanned air vehicle Small Business Innovation Research (sbir) 10. 3 - 13 (UAV)-to-satellite optical link, a reprogrammable optical transmitter could support multiple, free-space optical interconnects (such as UAV-to-satellite Airborne Intelligence, Surveillance and Reconnaissance (AISR) links) by using wavelength division multiplexing Small Business Innovation Research (sbir) 10. 3 - 13. Given that the useful operating lifetime of communication satellites can exceed twenty years, optical transmitter reliability is crucial to cost-effective delivery of bandwidth to the warfighter. This topic seeks to Small Business Innovation Research (sbir) 10. 3 - 13 advance the state-of-the-art of optical transmitters that support satellite communications, particularly with respect to reliability and output power. Goals include: programmable wavelength (between 1450 and 1500 nm), output power greater than Small Business Innovation Research (sbir) 10. 3 - 13 10 Watts, power added efficiency (PAE) greater than 60%, operating temperature range between –40 degrees C and +80 degrees C, total dose radiation tolerance greater than 1 Mrad (Si), single event effect tolerance from heavy ions greater than 60 MeV Small Business Innovation Research (sbir) 10. 3 - 13, and dose rate tolerance greater than 109 rads/sec, wide optical bandwidth, high tolerance to external shocks, low size, low weight, and high sensitivity. It is also desired to reduce the number Small Business Innovation Research (sbir) 10. 3 - 13 of required optical interfaces.


PHASE I: Evaluate programmable optical transmitter design options leading to enhanced reliability. Design an optical transmitter that meets goals, and simulate operation for the full range of Small Business Innovation Research (sbir) 10. 3 - 13 radiation and temperature environments.


PHASE II: Fabricate prototype reprogrammable optical transmitters. Characterize power output, wavelength, mean-time-to-failure, operating temperature range, and radiation tolerance.


^ PHASE III DUAL USE APPLICATIONS:

Military Small Business Innovation Research (sbir) 10. 3 - 13 Application: Military applications include communication satellites and Unmanned Aerial Vehicles (UAVs).

Commercial Application: Commercial applications include communication satellites and terrestrial optical links.


REFERENCES:

1. Watts, P., Glick, M., Waegemans, R., Benlachtar, Y., Mikhailov, V., Savory, S Small Business Innovation Research (sbir) 10. 3 - 13., Bayvel, P., and Killey, R.I., “Experimental demonstration of real-time DSP with FPGA-based optical transmitter,” IEEE International Conference on Transparent Optical Networks (ICTON), 2008, Volume 1, pp. 202 - 205.


2. Matsuda, H., Miura, A Small Business Innovation Research (sbir) 10. 3 - 13., Irie, H., Tanakam S., Ito, K., Fujisaki, S., Toyonaka, T., Takahashi, H., Chiba, H., Irikura S., Takeyari, R., and Harada T., “High-sensitivity 10-Gbit/s APD/preamplifier optical receiver module,” presented at the Small Business Innovation Research (sbir) 10. 3 - 13 OECC’2002, Paper 12A1-4, Yokohama, Japan, 2002.


3. Matsuda, H., Miura, A., Okamura, Y., Irie, H., et al., “High Performance of 10-Gb/s APD/Preamplifier Optical-Receiver Module with Compact Size,” IEEE Small Business Innovation Research (sbir) 10. 3 - 13 Photonics Technology Letters, Vol. 15, No. 2, Feb. 2003, pp. 278 – 280.


KEYWORDS: optical transceiver, satellite communications, communications link, wavelength division multiplexing, optical transmitter, optical receiver


^ AF103-077 TITLE: High-Data-Rate Radio-Frequency (RF) Crosslink Transceiver


TECHNOLOGY AREAS: Sensors, Space Small Business Innovation Research (sbir) 10. 3 - 13 Platforms


OBJECTIVE: Develop and demonstrate a high-data-rate Radio Frequency (RF) crosslink for insertion into a future satellite communications (SATCOM) Geosynchronous Earth Orbit (GEO) mission.


DESCRIPTION: In order to support bandwidth growth Small Business Innovation Research (sbir) 10. 3 - 13 for warfighter battlefield communications, future military communications satellites must be capable of supporting intersatellite links (ISL) at ever-increasing data rates. The Air Force seeks innovative, high-capacity satellite crosslink implementations Small Business Innovation Research (sbir) 10. 3 - 13 providing the capacity, reliability, and availability to meet the demands for the next generation of warfighter satellite communications. Design must be sufficiently robust, including error correction, to maintain a level of quality of service Small Business Innovation Research (sbir) 10. 3 - 13 (QoS) consistent with warfighter networks like WIN-T (Warfighter Information Network-Tactical), while minimizing size, weight and power consumption. The purpose of this topic is to develop a cost-effective Small Business Innovation Research (sbir) 10. 3 - 13, space-qualifiable, RF crosslinks transceiver suitable for use in geosynchronous intersatellite crosslink communications, with the pointing accuracy and transmitter output power to close links between satellites located up to 44,000 miles apart (two times Small Business Innovation Research (sbir) 10. 3 - 13 GEO) and reliability to support a 20 year satellite design life. Goals include: bit error rate less than 1E-11 errors/bit-day, and operating temperature range greater than -40 deg C to +80 deg C. Radiation Small Business Innovation Research (sbir) 10. 3 - 13 survivability goals include: total ionizing dose immunity greater than 1 Mrad (Si), prompt dose immunity greater than 1E9 rads/sec, survivability greater than 1E12 rads (Si)/sec, single-event effect susceptibility less than Small Business Innovation Research (sbir) 10. 3 - 13 1E-10 errors/bit-day, and latchup immunity.


PHASE I: Investigate candidate transceiver designs offering sufficient reliability, operating temperature and radiation tolerance to sustain long-mission duration in geosynchronous orbit ISL. Design prototype ISL Small Business Innovation Research (sbir) 10. 3 - 13 and validate through modeling and simulation.


PHASE II: Fabricate prototype ISL transceiver and characterize for all military satellite communications-related parameters, including operating frequency, frequency stability, data transfer rate Small Business Innovation Research (sbir) 10. 3 - 13 at 2X GEO, bit error rate, operating temperature range, radiation tolerance, and reliability.


^ PHASE III DUAL USE COMMERCIALIZATION:

Military Application: High-data-rate RF crosslinks could find use in DoD communications satellites Small Business Innovation Research (sbir) 10. 3 - 13 and Airborne Intelligence, Surveillance and Reconnaissance missions.

Commercial Application: Commercial applications include future upgrades to telecommunications satellites.


REFERENCES:

1. Stadter, P.A., A. A. Chacos, R. J. Heins, and M. S. Asher, “Enabling distributed spacecraft Small Business Innovation Research (sbir) 10. 3 - 13 system operations with the crosslink transceiver,” 2002 IEEE Aerospace Conf. Proc., Vol. 2, pp. 2-743-754, 2002.


2. Krueger, P., and J. Weitzen, “DBPSK signalling rates that maximize the performance of 60 GHz crosslinks in a doubly dispersive channel,” MILCOM Small Business Innovation Research (sbir) 10. 3 - 13 '90 - IEEE Military Communications Conference, Monterey, pp. 339- 343, 1990.


3. LeLevier, R, et al, “Satellite Crosslink Communications Vulnerability in a Nuclear Environment,” IEEE Journal on Selected Areas in Communications, Vol. 5, Issue 2, pp. 138-142, 1987.


KEYWORDS: crosslink, transceiver, radio Small Business Innovation Research (sbir) 10. 3 - 13 frequency, terahertz, intersatellite link, quality of service


^ AF103-078 TITLE: Laser Transmitter Module with Integrated Thermal Management System


TECHNOLOGY AREAS: Sensors, Space Platforms


OBJECTIVE: Develop laser transmitter with integrated thermal management system suitable for use in Small Business Innovation Research (sbir) 10. 3 - 13 SATCOM (Satellite Communications) applications.


DESCRIPTION: In order to support warfighter Airborne Intelligence, Surveillance and Reconnaissance (AISR), optical communications payloads are being considered for communications links between future generations of UAV Small Business Innovation Research (sbir) 10. 3 - 13's (Unmanned Aerial Vehicles) and GEO (Geosynchronous Earth Orbit) based military communications satellites. While diode-pumped, solid-state lasers are relatively compact, efficient and reliable, beam quality can degrade due to thermal Small Business Innovation Research (sbir) 10. 3 - 13 effects when operating at high-output power levels. The purpose of this topic is to develop a laser transmitter module with integrated cooling system to thermally managing 'hot spots' associated with high power solid Small Business Innovation Research (sbir) 10. 3 - 13 state laser components and that can be readily integrated into a UAV and/or satellite payload to provide reliable, high-data-rate optical communications over the entire mission life of Small Business Innovation Research (sbir) 10. 3 - 13 a communications satellite. Design solution should be capable of withstanding long term (20 year) exposure to the geosynchronous earth orbit environment, including total dose effects of at least 1 Mrad(Si), and operating temperature range of Small Business Innovation Research (sbir) 10. 3 - 13 at least -40 deg. C to +80 deg. C. Design solution should also be cost effective and minimize weight, power and size impacts to UAV and/or satellite payloads.


PHASE I Small Business Innovation Research (sbir) 10. 3 - 13: Develop innovative optical transmitter with optical communications cooling system meeting objectives. Validate laser transmitter thermal management design through modeling and simulation to provide a basis for design of prototype.


PHASE II: Develop prototype of Small Business Innovation Research (sbir) 10. 3 - 13 optical transmitter with integrated cooling system, meeting UAV and/or communication satellite payload requirements.


^ PHASE III DUAL USE COMMERCIALIZATION:

Military Application: Military satellite communication systems, including Wideband Global SATCOM System, could benefit from Small Business Innovation Research (sbir) 10. 3 - 13 this technology.

Commercial Application: Terrestrial optical fiber telecommunications could benefit from this development.


REFERENCES:

1. Kartalopoulos, Stamatios, "Introduction to DWDM Technology," John Wiley and Sons, 2000.


2. Hainberger, R., Y. Komai, W. Klaus Small Business Innovation Research (sbir) 10. 3 - 13, K. Kodate, and T. Kamiya, “All-optical modules for compact free-space laser link transceivers,” Conference on Laser and Electro-Optics, Europe, 2000.


KEYWORDS: thermoelectric cooling, photodiode, pump laser diode, semiconductor optical amplifier, optical communications Small Business Innovation Research (sbir) 10. 3 - 13, laser communications


AF103-079 TITLE:
  • oldrussian.ru/navchalno-metodichnij-kompleks-z-disciplni-rinkova-ekonomka-dlya-pdgotovki-fahvcv-osvtno-kvalfkacjnogo-rvnya-bakalavr-napryamu-pdgotovki-0304-pravo-dlya-studentv.html
  • oldrussian.ru/rim-kuda-stekayutsya-vse-tovari-odin-den-v-drevnem-rime-povsednevnaya-zhizn-tajni-i-kurezi.html
  • oldrussian.ru/funded-grants-board-of-regents-of-the-university-system-of-georgia.html
  • oldrussian.ru/stattya-513-forma-pravochinu-shodo-zamni-kreditora-u-zobovyazann-haritonov-npk-civlnogo-kodeksu-ukrani.html
  • oldrussian.ru/podstrojka-k-budushemu-kak-v-2-raza-uluchshit-pamyat-za-45-minut.html
  • oldrussian.ru/kursu-apraksts-plns-bakalaura-studiju-programma-krievu-filoloij.html
  • oldrussian.ru/45-vibr-eksperimentalno-oblast-chinnika-faktora-prostoru-rekomendovano-mnsterstvom-osvti-nauki-ukrani.html
  • oldrussian.ru/iznichtozhenie-billya-o-pravah-pochemu-nas-nenavidyat.html
  • oldrussian.ru/fagbeskrivelser-maritim-elektro-automasjon-087098.html
  • oldrussian.ru/computer-technology-unit-of-work.html
  • oldrussian.ru/lektor-as-yulmarcishevska-kompleks-z-disciplni-dlovij-protokol-ta-vedennya-peregovorv.html
  • oldrussian.ru/23level-3-details-definitions.html
  • oldrussian.ru/list-of-gvms-accelerated-reader-books-5.html
  • oldrussian.ru/competitiveness-key-to-heg-index.html
  • oldrussian.ru/class-contact-2-hours-per-week-for-one-semester-college-of-information-engineering.html
  • oldrussian.ru/konspekt-lekcj-do-samostjnogo-vivchennya-rozdlv-z-disciplni.html
  • oldrussian.ru/66-perelk-rekomendovanih-dzherel-diplomne-proektuvannya.html
  • oldrussian.ru/vtchiznyan-konferenc-semnari-zzdi-tosho-obnov5it-p4olya-d7lya-a2lbomnih-strani5c.html
  • oldrussian.ru/koordinator-ests-na-fakultet-ects-nformacjnij-paket-napryam-pdgotovki-0501-ekonomka-pdprimnictvo.html
  • oldrussian.ru/is-ait-dead-journal-of-indo-european-studies-vol-31-no-1-2-pp-107-185-2003.html