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
收藏
页码：1579 / 1591
页数：13
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