Waveguide Slot Array with Code-Division Multiplexing Function for Single RF Chain Digital Beamforming

被引：0
作者：
Nakamoto, Narihiro [1 ]
Kihira, Kazunari [1 ]
Fukasawa, Toru [1 ]
Inasawa, Yoshio [1 ]
Shinohara, Naoki [1 ,2 ]
机构：
[1] Mitsubishi Elect Corporatin, Kamakura 2478501, Japan
[2] Kyoto Univ, Res Inst Sustainable Humanosphere, Uji Shi 6110011, Japan
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2024年 / E107B卷 / 08期
关键词：
digital beamforming; waveguide slot array; single RF chain; ANTENNA;
D O I：
10.23919/transcom.2023EBP3123
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：
This study presents a novel waveguide slot array with a code-division multiplexing function for single RF chain digital beamforming. The proposed antenna is comprised of a rectangular metallic waveguide's bottom part and a multilayer printed circuit board (PCB) with the rectangular waveguide's top wall and slot apertures. Multiple pairs of two symmetric longitudinal slots are etched on the metal surface of the PCB, and a PIN diode is mounted across each slot. The received signals of each slot pair are multiplexed in a code-division multiplexing fashion by switching the diodes' bias according to the Walsh Hadamard code, and the original signals are then recovered through a despreading process in the digital domain for digital beamforming. A prototype antenna with eight slot pairs has been fabricated and tested for proof of concept. The measured results show the feasibility of the proposed antenna.
引用
收藏
页码：541 / 551
页数：11
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