A Compact Ferrite-Based Dipole Directional Antenna for Borehole Radar Application

Author

Hong-Yan Liang ; Hong-Chun Yang ; Jing Hou ; Ling-Yun Cai

Author_Institution

Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

10

Issue

3

fYear

2013

fDate

May-13

Firstpage

486

Lastpage

489

Abstract

A compact ferrite-based directional antenna has been designed to serve in a directional borehole radar system with a center frequency at 100 MHz and a bandwidth from 70 to 180 MHz. The parameters of the antenna are with a 6:1 power front-to-back ratio and a ±60° directional diagram at half peak amplitude, and the tailing duration of the receiving pulse was about a half pulsewidth while the antenna was placed in the granite borehole and fed by a monocycle pulse with 10-ns duration. The dimensions of the antenna are 48 mm × 54 mm × 440 mm . Experimental results are in good agreement with the simulation results offered by the commercial software (CST MWS) and suggest that the proposed antenna is suitable for the directional borehole radar application.

Keywords

directive antennas; drilling (geotechnical); ferrite devices; geophysical equipment; radar antennas; CST MWS; antenna parameters; bandwidth 70 MHz to 180 MHz; commercial software; compact ferrite-based dipole directional antenna; directional borehole radar application; directional borehole radar system; frequency 100 MHz; half peak amplitude; monocycle pulse; power front-to-back ratio; receiving pulse duration; time 10 ns; Dipole antennas; Directive antennas; Ferrites; Radar; Radar antennas; Receiving antennas; Borehole radar; directional antenna; ferrite based;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2012.2210671

Filename

6298932