There is a great need for hf broadband transmitting atenna for communications and jamming applications. the major disadvantages of present narrow band antennas are: slow tuning couplers limit jamming system response time and operational bandwidths; to achieve resonable efficiencies large atenna… More

A broadband high-frequency antenna structure for the tacamo airframe was studied. the structures studied would not degrade aerodynamic performance and would allow multiple transmitter operation over the full 2 to 30 mhz band. evaluation factors were efficiency, bandwidth, minimum losses, low… More

A transport vhf (25-30 khz) transmit system antenna was studied. several innovative concepts were analyzed and evaluated both in the laboratory and the antenna range. all measurements are modeled at 2.5 to 3 mhz. the techniques include: loop, monopole (include slow wave versions), center-fed… More

A series of broadband hf antenna structures was analyzed for potential shipboard applications. included were altshulter insertions, dielectric loading, multiple reactive insertions, active transmit antenna, and multiple transmission lines. objectives include 3 to 1 maximum vswr over the 2 to 30 mhz… More

To achieve the program goals of ultimately fabricating and demonstrating miniaturized broadband, hr/vhf antennas for use on air force vehicles, the two critical technical aspects of the problem, foreshortening and broadbanding, have been studied, prototype concepts developed, and engineerin… More

The astron proposed underground communications system utilizes an innovativephase modulated rf transmission whose modulation rate is adjusted to provide decreased transmission losses through soil/rock environment as compared to conventional rf communication systems. additional major advantages are:… More

An innovative rf em modulation radar sensor is proposed which will provide a rich, multi-spectral response from relocatable strategic targets. this novel rf system has the following major advantages over competing radar systems. a. in addition to providig the conventional radar return, a secondary… More

Radio direction finding is a valuable passive intercept technique that can provide critically important data which may influence the outcome of a military engagement. conventional antennas for df are narrowband and physically large in the hf and vhf bands. enhancing the performance of small arrays… More

The availability of new advanced technology and materials makes possible greatly simplified, lower cost and more reliable aircraft antenna systems. as an example, the elimination of the hf high power coupler from the present hf transmitting system can result in millions of dollars in savings for… More

All rf systems have undergone tremendous miniaturization during the last few decades. however, the size of rf components, such as duplexers, filters, molators have undergone very little; while the antennas have undergone virtually none. through the use of astron's newly developed dielectric/ferrite… More

Present hf aircraft communications are burdened with inefficient, narrow bandwidth, slowly tuned high power couplers. the astron proposed aircraft antenna system is an easily added, conformal antenna which obviates the above disadvantages by eliminating the coupler. further, it lends itself to using… More

An innovative single antenna array is proposed which can achieve extremely high direction of arrival accuracy for pulse sorting applications. the maximum diameter is less than 4 inches and can be made flush mounting.

There is a major army requirement for reducing the physical size of tactical hf antennas (for use on a variety of carriers from tracked vehicles to drones) for electronic warfare applications without degrading currently accepted performance and still maintaining the same gain, frequency and power… More

A novel approach to low cost shaped beam scanning for monolithic structures is proposed. the technique make use of radome material costing of the conventional monolithic structure; the radome itself is composed of a composite of high dielectric constant/magnetically sensitive material-refered to as… More

Due to the limited space and the need for flush mounting charactistics, a new and novel series of antenna systems for communications and ECM is proposed. It is proposed to use dielectromagnetic (DM) materials to miniaturize antennas and for RF DM lens to focus the RF signals into the below the… More

Monopole and dipole antennas have been determined to radiate most efficiently when the size of the antenna is proportional to the frequency being transmitted or received, i.e. one-quarter, one-half or one wavelength. As the operating frequency is varied from that ideal frequency nulls begin to… More

Monopole and dipole antennas have been determined to radiate most efficiently when the size of the antenna is proportional to the frequency being transitted or received, ie.e, one-quarter, one-half or one wavelength. As the operating frequency is varied from that ideal frequency, nulls begin to… More

Satellite Communication (SATCOM) is a necessity for teams (military or commercial) that are deployed away from their parent organizations. Unfortunately they may not have sufficient power supply/battery capability. By combining a SATCOM Antenna and Solar Cell Array protable, lightweight, and… More

Astron Corporation proposes to integrate supportability low profile covert antenna system requirements to cover a frequency span of 2 - 2000 MHz within two multi mobile platforms which will adapt to various transportable applications. The specific objectives of the Phase I effort are: a. OBJECTIVE 1… More

An innovative dielectrically loaded miniature uhf satcom antenna is proposed for a follow-on uhf satcom antenna system which is compatible with small ships (ddg-51, phm, mcm, etc.). the new antenna will have the potential capability to be retrofitted on existing platforms and the performance… More

Command and control system in the AAV-C7A1 amphibious vehicle require muliple radio/antenna systems, operating in close proximity, over HF, VHF, and UHF frequencies. This collocation of antenna systems results in major Radio Frequency Interference (RFI) Problems causing transmitter spurious… More

The intent of this program is to develop workable concepts that will result in commercial and military high performance, covert, low cost, adaptable antennas in gain, coverage, and a variety of equipment applicability for hand held use. Ideally, the program will result in a technology capable of… More

The program objective is to develop novel designs, techniques, and structures to synthesize apertures capable of efficient operation over broad frequency ranges and functions. Conventional apertures are narrowly focused, application specific, and basically single point design. To decrease the cost… More

The objective of the Phase I program is the development of vehicular satellite cornmunications antenna Systems for all military (UHF, SHF, and EFIF) and commercial (L, C, Ku) frequency bands for tactical/strategic cornmunications-on-the-move. Astron has proposed a series of innovations which will… More

The intent of this program is to develop workable concepts that will result in commercial and military high performance, covert, low cost, adaptable antennas in gain, coverage, and a variety of equipment applicability for hand held use. Ideally, the program will result in a technology capable of… More

This Phase I program has as its objective to investigate innovative antenna concepts for small, broadband antennas and a demonstration of the concepts feasibility with experimental models or computer antenna models. These antennas are needed for operation over the HF through X band ranges. Astron… More

The program objective is to demonstrate enhanced antenna element gain enhancement for small light weight synthesized virtual antennas. Astron/VPI have proposed a series of innovative helicalantennas to support the improved performance of a multi-element synthesized virtual antenna.

Not Available Avyd Devices proposes to develop a nitride based UV detector technology entailing the growth of GaN and GaAlN p-i-n structures via Molecular Beam Epitaxy (MBE) growth technique with emphasis on reducing the contact resistance to the p layer of the p-i-n structure. With our approach,… More

Not Available Advances in optical computing and signal processing would benefit from the breakthroughs in materials technology for monolithic optoelectronics integration. We propose a new silicon-based light emitter for such possible superchip-IC . This concept is an extension of a major… More

The objective is the development of a high power microwave antenna to operate with 100 megawatts pulsed input at L band. Unfortunately, the present dish antennas capable of achieving this objective are too large for use on Army land vehicles (HMM) and airplatforms (Blackhawk). With recent antennas… More

The objective is to develop an RF Distribution (RFDS) Systemoperating over HF to UHF to support not only communications butalso information warfare (IW) systems (attack and exploit)requirements. The RFDS is capable of accommodating broadbandsignals distribution to allow spread spectrum and… More

Astron proposes to develop and demonstrate a series of compact, extremely high power transmit/receive anennas to cover (with a minimum number of antenna elements) the HF through UHF frequency range. These antennas are intended for on-the-move operationsin airborne and also vehicular applications. … More

Develop and test antennas suitable for an unmanned aerial vehicle (UAV) with signals intelligence and communications payloads and the potential to be used with other systems. New ideas are stressed to achieve antenna miniaturization and widebandwidths.The development of a miniaturized broadband… More

"Develop and test antennas suitable for an unmanned aerial vehicle (UAV) with signals intelligence and communications payloads and the potential to be used with other systems. New ideas are stressed to achieve antenna miniaturization and wide bandwidths."

"The program objective is the development of a high powered (over 200 megawatt) three dimensional, minimum aperture sized antenna that is protable and can be deployed in urban environments. It will be capable of delivering very high RF power over widefields of view. This technology is directly… More

"The program objective is to design and build an inexpensive lightweight, portable, and sensitive Tactical Antenna Switching and Positioning System for UHF (240 to 320 MHz) SATCOM. It is to be designed to be carried aboard ships, installed at sometimesunpredictable locations, and placed into… More

"Research, design, and build a family of rugged inexpensive tactical antennas for deployed SOF personnel in two versions: one as a tent and the other as camouflage netting. Latest in antenna technologies to design a series of transparent antennas that canreceive HF up to at least UHF (2 to 3000… More

The program objective is the development of a high powered three dimensional, minimum aperture sized antenna that is portable and can be deployed in urban environments. It will be capable of delivering very high RF power over wide fields of view.Thistechnology is directly applicable to radars and… More

The objective of the Advanced Anti-jam Design Techniques effort is to make a controlled Radiation Pattern Antenna (CRPA) have more elements without increasing the size, or make it the same antenna (i.e., same number of elements) smaller. The moreradiating elements that are available in a CRPA… More

The objective of the phase I and II SBIR Topic A03-198, "COMPACT, RUGGED ULTRA WIDEBAND ANTENNA PROGRAM" is to develop compact, rugged ultra-wideband antenna technology that can be used in the D.O.D. environment to produce small to medium caliber munitions (40 mm. to 155 mm.), see Figure 3.0-1,… More

The objective of the Phase 1, SBIR Topic A04-005, "Adaptive Bandwidth High Power RF Antennas," is to develop a broadband (a minimum of 2:1, up to, say, 6:1 or even 10:1 bandwidth) high gain (12 dBi minimum), operating in the HF/VHF and VHF/UHF bands, high power (300 KW at a 50% duty cycle) antenna. … More

The objective of the Phase 1 and 2 SBIR Program, Topic N04-263, "Advanced Multi-Band Electronic Surveillance Measure (ESM) Antenna," is to develop a multi-band, lightweight ESM antenna, includes communications intelligence (COMINT), electronic intelligence (ELINT) and communications systems and data… More

The objective of the phase 1 and 2 SBIR Topic 04-005, "Adaptive Bandwidth High Power RF Antenna" program is to develop miniaturized, high power antenna over the customer desired frequency range of 100 MHz to 95 GHz, with typical bandwidths of 2:1, up to 10:1 with a high gain of 12dBi (minimum) and… More

The objective of the Phase 1 and 2 SBIR Program, Topic N06-038, "MULTI-PURPOSE ANTENNA", (MPA), is the development, of a multi-function antenna that can condense the current very high frequency/ultra-high frequency (VHF/UHF) line-of-sight, UHF satellite communication, L-band and global positioning… More

The objective of the Phase 1 and 2 SBIR Topic N06-040, "Ultra-Wide Band Antenna (UWBA) For Electronic Attack Aircraft", is to provide to the Navy innovative, new, and advanced techniques to increase the band coverage of the improved tactical Jamming Systems aboard the EA-6B and EA-18G aircraft (see… More

The objective of the Phase 1 and 2 SBIR topic N07-138, "Extremely Wide Antenna for Airborne and Land Mobile Communications Systems" is to develop antenna technologies that can be incorporated into compact, efficient, and wideband antennas that can be militarized for air and land mobile platforms. … More

The objective of the SBIR Topic AF 071-059, "Planar Wideband Phased-Array Element for VHF Radar", is the development of a single antenna element which can be used for a VHF (25 to 88MHz) Foliage Penetration (FOPEN) Radar Phased-Array. It must also be designed to be able to be placed on the skin… More

The objective of the phase 1 and 2 SBIR Program Topic N06-038, "MULTI-PURPOSE ANTENNA (MPA)", is the development, of a multi-function antenna that can condense the current very high frequency/ultra-high frequency (VHF/UHF) line-of-sight, UHF satellite communication, L-band and global positioning… More

The objective of the Phase 1 and 2 SBIR Topic N06-040, "Ultra-Wide Band Antenna (UWBA) For Electronic Attack Aircraft", is to provide to the Navy innovative, new, and advanced techniques to increase the band coverage of the improved tactical Jamming Systems aboard the EA-6B and EA-18G aircraft (see… More