Development of a logarithmic spiral antenna in UWB GPR for humanitarian demining

被引：4
|
作者：
Kazemi, Robab [1 ]
机构：
[1] Univ Tabriz, Fac Elect & Comp Engn, Tabriz, Iran
来源：
ELECTROMAGNETICS | 2018年 / 38卷 / 06期
关键词：
Cavity-backed antenna; ground penetrating radar (GPR); log spiral antenna; mine detection; wideband balun; impulse radar; GROUND-PENETRATING RADAR;
D O I：
10.1080/02726343.2018.1488428
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 low cost cavity-backed logarithmic spiral antenna with a very wideband balun is presented for detection of Anti-Personnel land mines in ground penetrating radars. It covers a wide frequency range of 0.5 to 1.6GHz with 10dB return loss. The measured maximum gain of the antenna at the center frequency of 1.0GHz, is 9.2dBi and the axial ratio is less than 1.3dB in the angular range of +/- 48 degrees, which validates circular polarization performance. The fabricated antenna is useful in impulse GPRs for humanitarian demining due to its high penetration depth, wide bandwidth, relatively small dimensions, and low axial ratio.
引用
收藏
页码：366 / 379
页数：14
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