A compact quasi-Yagi antenna for FMCW radar-on-chip-based through-wall imaging

被引：3

作者：

Kumar, Anand ^{[1
]}

Easha, Easha ^{[1
]}

Sarkar, Debdeep ^{[1
]}

Banerjee, Gaurab ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Elect Commun Engn, Bengaluru 560012, KA, India

来源：

INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES | 2023年 / 15卷 / 09期

关键词：

Antenna; Vivaldi; Quasi-Yagi; Directors; Ultra wide-band; UWB; chirp; through-wall radar; TWR; Spectrogram; FMCW; DESIGN; ARRAY;

D O I：

10.1017/S1759078723000235

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：

A compact quasi-Yagi antenna with a modified ground plane is designed for a through-wall radar on-chip. A slot-based ground plane modification in the proposed antenna results in significant miniaturization with an increase in the impedance bandwidth by 44.62%. The antenna has a high directivity of 9.02 dBi and a front-to-back ratio of 25.76 dB at 2.4 GHz. Based on experiments in real-world deployment scenarios, the performance of the proposed quasi-Yagi antenna is found to be comparable to that of a Vivaldi antenna and a commercial-off-the-shelf horn antenna. Spectrogram-based signatures of a moving person behind a wooden partition and a 40 cm thick masonry wall are successfully obtained using the designed antenna, demonstrating the suitability of the quasi-Yagi antenna for portable applications using a radar-on-chip.

引用

页码：1579 / 1591

页数：13

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