volume | PIER Journals

Abstract

To meet the demands for a broader bandwidth, lower frequency, and enhanced gain, this article presents an innovative ultra-wideband miniaturized ground penetrating radar antenna based on traditional Vivaldi designs. The proposed antenna achieves an operational bandwidth spanning from 100 MHz to 2000 MHz (20:1 bandwidth ratio), with a peak gain reaching up to 9 dBi. Furthermore, it exhibits remarkable miniaturization. The antenna introduces novel dual-slotline configurations, side elliptical slots, metallic loading, and top-mounted lumped resistors, which collectively optimize its bandwidth and voltage standing wave ratio. These improvements make it particularly suitable for ground penetrating radar systems.

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Mr. Zhiyao Qin

Dr. Shunfeng Cao

Dr. Weiheng Li

Professor Qiulin Huang