Wideband, Scanning Array for Simultaneous Transmit and Receive

被引：0

作者：

Hovsepian, Alexander ^{[1
]}

Venkatakrishnan, Satheesh Bojja ^{[1
]}

Alwan, Elias A. ^{[1
]}

Volakis, John L. ^{[1
]}

机构：

[1] Florida Int Univ, Dept Comp & Elect Engn, Miami, FL 33199 USA

来源：

2018 INTERNATIONAL APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY SYMPOSIUM (ACES) | 2018年

关键词：

Antenna; beam steering; full duplex; simultaneous transmit and receive;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present a low profile wideband spiral antenna array with high transmit/receive (Tx/Rx) isolation and beam steering capability for simultaneous transmit and receive (STAR) systems. STAR increases a channel's spectral efficiency by transmitting and receiving across the full bandwidth of a channel. To our knowledge, this is the first wideband STAR spiral array with scanning. Each 4-arm spiral element consists of two arms for Tx and two more for Rx. To suppress grating lobes, the element spacing is kept at lambda(HIGH)/2. Full wave infinite array simulations show the port-to-port Tx/Rx isolation is >40dB at boresight across a 3 GHz bandwidth from 2-5GHz (2.5:1). This level of port-to-port isolation reduces to about 30dB when scanning down to 30 degrees. In addition, VSWR is < 2 and axial ratio < 3dB. A 3x3 array was fabricated and showed an average Tx/Rx isolation of 36dB with VSWR < 2.4.

引用

页数：2

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