0.5-45GHz Simultaneous Transmit and Receive (STAR) Antenna System for Electronic Attack
University of Colorado Boulder Boulder United States
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A shared antenna aperture for simultaneous transmit and receive STAR operating from 0.5 to 45GHz with isolation 50dB over the entire band is discussed. The co-located antenna aperture system is designed across 4 overlapping bands 0.5-2.5GHz, 2-7GHz, 6-19GHz, and 18-45GHz. The lowest band utilizes a novel monostatic STAR approach based on a four-arm spiral antenna. The required isolation for other bands is achieved by physically displacing the transmitting and receiving antennas i.e. bistatic approach as well as implementing efficient isolation improvement techniques. Small linearly tapered slot array, TEM and quad-ridge horns are employed to achieve excellent wideband performance, singledual polarization operation, and high-power handling capability required for electronic attack. In this work, only the individual standalone subsystems are discussed.
- Electrical and Electronic Equipment
- Radiofrequency Wave Propagation