Evaluating Noise in Passive Beamforming Networks for Multibeam Applications

被引：0
|
作者：
Biurrun-Quel, Carlos [1 ,2 ]
del-Rio, Carlos [1 ,2 ]
机构：
[1] Univ Publ Navarra, Dept Elect Elect & Commun, Antenna Grp, Pamplona 31006, Spain
[2] Univ Publ Navarra, Inst Smart Cities, Pamplona 31006, Spain
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2023年 / 22卷 / 08期
关键词：
Beamforming; noise factor; passive circuits; phased arrays; signal-to-noise ratio (SNR); THERMAL AGITATION; ANTENNA; CAPACITY; FEED; GAIN;
D O I：
10.1109/LAWP.2023.3269121
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：
In this letter, we identify that the analysis in terms of noise of multibeam passive beamforming networks requires a proper formulation, in order not to overestimate the noise generated by the network. We show that the inherent spatial diversity offered by this type of networks results in an improvement of the signal-to-noise ratio, similar to the one obtained by digital architectures, with a penalty due to the insertion loss. To illustrate this phenomena, two generalized equivalent circuits are proposed are a numerical example is presented.
引用
收藏
页码：1902 / 1906
页数：5
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