Antenna Reflections in Shared-Antenna In-Band Full-Duplex Systems

被引：0
|
作者：
Kolodziej, Kenneth E. [1 ]
Doane, Jonathan P. [1 ]
Perry, Bradley T. [1 ]
机构：
[1] MIT, Lincoln Lab, 244 Wood St, Lexington, MA 02173 USA
来源：
2021 IEEE-APS TOPICAL CONFERENCE ON ANTENNAS AND PROPAGATION IN WIRELESS COMMUNICATIONS (APWC) | 2021年
关键词：
5G mobile communication; antenna reflection; in-band full-duplex; interference cancellation; simultaneous transmit and receive; shared antenna;
D O I：
10.1109/APWC52648.2021.9539694
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：
As opposed to multiple-antenna solutions, in-band full-duplex (IBFD) systems can utilize a shared antenna for signal transmission and reception to reduce the device form factor. These single-antenna designs, however, must additionally consider the self-interference (SI) that is generated by antenna impedance-mismatch reflections. This paper investigates the effect of different antenna loads and transmission line lengths for commercially-available magnetic circulator and omnidirectional antenna components operating between 2 and 6 GHz. The results indicate that both the load impedance and the distance between the antenna and interface device can drastically impact the composite SI frequency-selectivity, which influences the overall IBFD system bandwidth.
引用
收藏
页码：173 / 176
页数：4
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