"Current man portable antennas are heavy, rigid, telescoping or umbrella like contraptions, which limit the mobility and speed of a deployed unit. We propose to improve the weight, storage size, and ease of deployment of a portable antenna through the useof electronic textiles as described in this… More

"A multi-channel transmit array is to be developed for high-speed digital communications and radar applications. Digital beamforming (DBF) will be combined with direct digital synthesis (DDS) waveform generation to achieve a system capable of using bothwaveform diversity and spatial diversity.… More

Long-duration wide-area surveillance missions increasingly are space-based. MEO orbits offer space-based radar systems more time on station, but require very large array apertures on the order of 100m in diameter. Achieving larger apertures with smaller,lighter launch packages and stable on-orbit… More

Digital Beamforming (DBF) technology offers several advantages to phased-array radar and communication systems over previous analog phase shifters including performance, versatility and cost. Previous array phase-shifter technology can be classified aseither fixed delay, employing switched delay… More

An X-band interferometric radar (XBIR) system employing digital beamforming (DBF) is proposed to supplement the S-band multi-mission radar (MMR) phased array currently under development by Syracuse Research. This auxiliary X-band array will bolt onto theapproximate 1.5 x 2.0 meter MMR array and… More

Phased-array radar employing wideband digital beamforming (DBF) offers the potential for detecting and tracking incoming cruise missiles while defeating electronic countermeasures such as chaff, jamming and anti-reflective coatings. A wide instantaneousradar bandwidth is essential for defeating… More

A W-band digital communications transceiver will be developed with 5 GHz instantaneous bandwidth utilizing the 71 - 76 and 81 - 86 GHz frequency spectrum recently allocated by the FCC. This project has both military and commercial applications for SATCOM and Point-to-Point digital communications… More

An X-band digital transmit module will be developed that is suitable for phased-array radar and communications applications. This proposed Phase II SBIR will combine our Phase-I X-band transmit module design with a DBF receiver that Applied Radar is developing through separate (non-SBIR) funding… More

Applied Radar Inc. proposes the development of active MMIC-based circulators in order to achieve high isolation between transmit and receive paths for simultaneous transmit and receive (STAR) phased-array radar system architectures. This technology will enable increased persistence in intelligence,… More

Applied Radar proposes to investigate a new method of incorporating microwave antenna and feed components directly into airframe structural members. This method is based on the 3-D weaving of a resin transfer molded (RTM) fiber reinforcement preform that meets both RF and structural requirements.… More

New missions require that airborne radars operate at increasing ranges with higher target resolution. This combination necessitates the cost-effective deployment of large apertures while maintaining aerodynamic performance. Externally mounted antenna arrays are not a satisfactory solution due to the… More

The objective of the proposed effort is to develop a digital beamforming (DBF) processor capable of generating multiple simultaneous receive beams with a wide (>500 MHz) instantaneous bandwidth (IBW). This would offer a significant improvement over a similar DBF processor with 15 MHz IBW that… More

The detection and classification of reentry vehicles in the presence of jammers and clutter is a very important missile defense radar problem. High resolution, wideband adaptive beamforming (ADBF) is an important solution component in which both the transmit and receive beamforming weight vectors… More

This proposal will address the development of digital receivers and exciters capable of supporting > 1 GHz of instantaneous bandwidth (IBW). The technology will be used in large scalable BMD radar arrays employing a digital waveform generator and digital receiver at the analog input/output of each… More

In the proposed Phase II effort, Applied Radar, Inc. will develop a wideband scaleable digital beamforming (DBF) processor capable of supporting > 1 GHz of instantaneous bandwidth (IBW). The new patented hardware architecture paradigm developed in Phase I is scaleable in the number of input… More

The development of broadband high-isolation active circulators with simultaneous transmit and receive (STAR) capabilities would enable increased persistence in intelligence, surveillance and reconnaissance (ISR) systems and allow multiple simultaneous radar modes including SAR, GMTI and AMTI for… More

Our missile defense capability crucially depends on radar performance to detect, track and discriminate hostile targets. New radar designs being developed offer enhanced capability. However, a significant impediment to the deployment of these new radars is the high cost of active electronically… More

The mitigation of mainlobe jamming is essential to missile defense radar performance. Applied Radar is currently investigating distributed aperture and adaptive processing architectures that promise a new generation of advanced radar performance. Our proposed program will research the application of… More

The design and development of phased-array radars requires the integration of solid-state components and adequate thermal mitigation within the array lattice constraints. The current trend is towards increasingly planar designs and a reduction in the array depth. The MDA SPEAR program is one example… More

Long-duration wide-area surveillance missions increasingly are space-based. MEO orbits offer space-based radar systems more time on station, but require very large array apertures on the order of 100m in diameter. Achieving larger apertures with smaller, lighter launch packages and stable on-orbit… More

This proposal will address the development of a digital receiver and exciter (DREX) technology for next-generation scalable missile-defense radar. A DREX is currently being specified at the sub-array level to feed an analog tile or panel subarray. This al

Missile threats faced by our country are constantly increasing in lethality. The weapon used to counter such missiles is the kinetic interceptor. To work effectively, the reentry vehicle (RV) location must be precisely known. Confusing objects within the reentry complex make the key discrimination… More

The design and development of scalable panel-based phased-array radars requires the high density integration of solid-state components and adequate thermal mitigation within the array lattice constraints. The current integration technologies such as system-on-a-chip (SOC),… More

This proposal will address the development of a wideband digital receiver and exciter (DREX) technology for next-generation scalable missile-defense radar. A DREX is currently being specified at the sub-array level to feed an analog tile or panel subarray in order to generate flexible waveforms and… More

Current monostatic radar systems suffer fine tracking and discrimination performance degradation when encountering mainlobe jammers deployed within a reentry complex. As a result our forces may be vulnerable to attack. During Phase I, we have developed di

To realize next generation missile defense radar systems with a significant improvement in performance requires more cost effective system implementations. Software defined radar (SDR) technologies together with field programmable gate array (FPGA) implementations promise reusable and low cost DREX… More

In order to maintain our nation's technological superiority on air, sea and land, we must respond quicker to emerging threats and reduce the cost of major sensing platforms. Every DoD platform developed nowadays contains at least one sensor, whether it be RF, EO/IR, or acoustic. In fact, in a lot of… More

A multi-band airborne synthetic aperture radar and ground moving-target indicating (SAR/GMTI) radar system will be designed and developed that will utilize multiple frequency bands to improve the radar imaging and target detection performance in various clutter environments. Applied Radar's existing… More

Multi-channel array manifolds are required for wideband AESA applications. In modern solid-state AESA arrays, MMIC-based T/R modules generally utilize digitally-controlled phased shifters to steer the beam on transmit and receive. The given phase value is only accurate at one frequency, and so for… More

Key obstacles to extending OFDM to wireless links and networks at high-frequencies and dynamic channels are inherent low performance to Doppler and power amplifiers operation with high back-off. Other significant obstacles are multipath and impulsive noise. PEARL-OFDM combines a layered architecture… More

Missile threats faced by our country are constantly increasing in lethality. The weapon used to counter such missiles is the kinetic interceptor. To work effectively, the reentry vehicle (RV) location must be precisely known. Confusing objects within the reentry complex make the key discrimination… More

Key to phased arrays that can scale to high frequencies, bandwidth and large apertures is an architecture that enables full digital beamforming and large-array performance with minimum electronics per element. Out of the three proven beamforming methods for phased arrays: analog, conventional… More

Next-generation ground-based BMD radar is anticipated to employ a scalable architecture with multiple low-cost transportable arrays employing hundreds of thousands of elements per array. Low-cost analog array panels are to be employed in the array, and wi

Next-generation ground-based BMD radar is anticipated to employ a scalable architecture with multiple low-cost transportable arrays employing hundreds of thousands of elements per array. Low-cost analog array panels are to be employed in the array, and will typically contain a digital… More

Key obstacles to extending OFDM to wireless links and networks at high frequencies with dynamic channels are inherent low performance to Doppler and power amplifier operation with high backoff. Other significant obstacles are multipath and impulsive noise. PEARL provides a solid communications… More

ABSTRACT: A key requirement for a practical/scalable airborne passive radar system using opportunistic ground emitters such as broadcast TV is the ability to effectively isolate the high-powered direct-path signals from much weaker target reflected ones. Previous passive radars rely on array… More

Current monostatic radar systems suffer fine tracking and discrimination performance degradation when encountering mainlobe jammers deployed within a reentry complex. As a result our forces may be vulnerable to attack. During Phase I, we have developed distributed aperture techniques for mitigating… More

Applied Radar, Inc. is developing the Single Channel Open Source Architecture (SCORE) digital receiver/exciter (DREX) card which represents a revolutionary step leap in SWAP-C reduction. The SCORE card is a 3U OpenVPX card which incorporates a single channel of waveform generation, RF Upconversion,… More

The proposal will develop multiple design concepts, conduct a trade study, and identify the three (3) most promising concepts for affordable low-profile and wideband satellite communication antennas (LPWSA) with high data rate capability and minimum airstream protrusion for airborne platforms. … More