Results 201 to 210 of about 32,140 (247)
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IEEE Antennas and Wireless Propagation Letters, 2020
A compact, high-isolation, monostatic, co-circularly polarized (CP) simultaneous transmit and receive (STAR) antenna with similar radiation patterns is presented. The proposed antenna system consists of a sequentially rotated array (SRA) of four dual-polarized antenna elements and two quadrature feeding networks.
Di Wu, Yu-Xiang Sun, Bo Wang, Ruina Lian
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A compact, high-isolation, monostatic, co-circularly polarized (CP) simultaneous transmit and receive (STAR) antenna with similar radiation patterns is presented. The proposed antenna system consists of a sequentially rotated array (SRA) of four dual-polarized antenna elements and two quadrature feeding networks.
Di Wu, Yu-Xiang Sun, Bo Wang, Ruina Lian
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IEEE Antennas and Wireless Propagation Letters, 2019
In this letter, a monostatic and cochannel simultaneous transmit and receive (STAR) antenna with identical circularly polarized radiations of transmitting (TX) and receiving (RX) channels is designed using a thin single-layer substrate. Four concentrically arranged microstrip radiating elements are properly excited by two sets of feeding networks: the ...
Ziheng Zhou +5 more
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In this letter, a monostatic and cochannel simultaneous transmit and receive (STAR) antenna with identical circularly polarized radiations of transmitting (TX) and receiving (RX) channels is designed using a thin single-layer substrate. Four concentrically arranged microstrip radiating elements are properly excited by two sets of feeding networks: the ...
Ziheng Zhou +5 more
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Simultaneous transmit and receive (STAR) mobile testbed
2016 IEEE Radio and Wireless Symposium (RWS), 2016Simultaneous Transmit and Receive (STAR) systems typically utilize multiple cancellation layers to improve system isolation and avoid self-interference. The design of these different layers must be evaluated both individually and as a whole to determine their effectiveness in various environments.
Kenneth E. Kolodziej, Bradley T. Perry
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Wideband simultaneous transmit and receive (STAR) circular array system
2016 IEEE International Symposium on Phased Array Systems and Technology (PAST), 2016A wideband simultaneous transmit and receive (STAR) dual-layer circular array is considered to handle the space limitation and efficient use of wireless spectrum. The proposed STAR aperture configuration is composed of upper- and lower-layer circular arrays, where one works as transmitting and the other as receiving antenna. Each array consists of four
Ehab A. Etellisi +2 more
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Antenna Systems for Simultaneous Transmit and Receive (STAR) Applications
International Symposium on Microelectronics, 2017Abstract Several novel wideband co-polarized circulator-less monostatic antenna and array designs for co-channel simultaneous transmit and receive (STAR) applications are presented. The monostatic STAR apertures are demonstrated first by utilizing multi-arm spiral antennas where a set of arms is used for transmitting (TX) and the other ...
Ehab A. Etellisi +2 more
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Simultaneous Transmit and Receive (STAR): Circulators Versus Nonreciprocal Antennas
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2019Desired antenna and front-end for simultaneous transmit and receive systems in addition to nonlinear and/or time variant nonreciprocal antennas are reviewed. The STAR system requirements in terms of antennas and front-end are investigated. Then, the properties of some proposed techniques for nonreciprocal antennas and circulator-based systems are ...
Pedram Loghmannia, Majid Manteghi
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Wideband simultaneous transmit and receive (STAR) bi-layer circular array
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015The main challenge with the full-duplex simultaneous transmit and receive (STAR) systems is achieving high isolation over a wide bandwidth while preserving identical (or similar) radiation patterns in both, the transmitting and receiving modes. In this paper, a novel low profile wideband bi-layer STAR circular array configuration is presented.
Ehab A. Etellisi +2 more
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Wideband Antenna Array for Simultaneous Transmit and Receive (STAR) Applications
IEEE Antennas and Wireless Propagation Letters, 2017Design and performance of a nonscanning antenna array with wideband simultaneous transmit and receive capability are discussed. The proposed configuration utilizes a four-arm spiral antenna as a unit cell to achieve high isolation between transmit (TX) and receive (RX) ports and decent far-field performance.
Mohamed A. Elmansouri +2 more
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High-Directivty Broadband Simultaneous Transmit and Receive (STAR) Antenna System
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2018A broadband, circularly polarized (CP), and high-directivity STAR reflector antenna system is proposed. The high system isolation is achieved by mounting well-designed CP receiving (RX) and transmitting (TX) antennas with high front-to-back ratio (F/B) back-to-back.
Prathap Valale Prasannakumar +2 more
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