Microwave Resonant Out-of-Plane Fed Elliptical Slot Antenna for Imaging Applications

Abstract

Development of an effective microwave antenna is important issue for nondestructive sensing and imaging applications. Recently a one-shot, rapid and portable microwave imaging system with a PIN diode-loaded resonant elliptical slot has been developed. In this paper a new approach for feeding a resonant slot used in such a systems is considered. It includes coupling the transmitted and received signals into the slot using out-of-plane (perpendicular) microstrip feed. Three feeds are considered, namely; a 90°-bent microstrip-line feed, a microstrip line proximity feed and a direct microstrip line connection to the slot load. The simulation and measured results show that the antenna with the 90° bent microstrip-line feed demonstrates the best radiation and modulation efficiencies.

Meeting Name

IEEE International Instrumentation and Measurement Technology Conference (2011: May 10-12, Binjiang, Hangzhou, China)

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Imaging; Modulated Scattered Technique; Perpendicular Microstrip Feed; Resonant Slot; Sensing; Imaging Applications; Measured Results; Microstrip Feed; Microwave Imaging Systems; Modulation Efficiency; Nondestructive Sensing; Out-Of-Plane; Received Signals; Antenna Arrays; Imaging Systems; Instruments; Measurement Theory; Microstrip Lines; Microwave Antennas; Microwave Devices; Semiconductor Diodes

International Standard Book Number (ISBN)

978-1424479351

International Standard Serial Number (ISSN)

1091-5281

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2011 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 May 2011

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