Title

Aperture-Coupled Microstrip Patch Antenna Fed by Orthogonal SIW Line for Millimetre-Wave Imaging Applications

Abstract

A new microstrip patch antenna feeding technique for millimetre-wave imaging applications is proposed. The technique utilises a substrate integrated waveguide line that orthogonally feeds the patch antenna through a coupling aperture. A rectangular microstrip patch antenna was designed to operate at 32 GHz. Measurement and simulation results for rectangular patch antenna are presented showing good agreement with 9% bandwidth (|S11| < -10 dB). The aperture-coupled rectangular patch antenna provided 5.5 dBi gain and 72% efficiency at the design frequency. Finally, the rectangular patch antenna is used for near-field and wideband synthetic aperture radar imaging to demonstrate the potential of the proposed antenna for imaging applications at millimetre wave frequencies.

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Antenna Feeders; Microstrip Devices; Microwave Antennas; Radar Antennas; Slot Antennas; Substrate Integrated Waveguides; Synthetic Aperture Radar; Waveguides; Aperture-Coupled Microstrip Patch Antenna; Design Frequencies; Imaging Applications; Measurement And Simulation; Micro-Strip Patch Antennas; Millimetre-Wave Imaging; Rectangular Microstrip Patch; Rectangular Patch Antenna

International Standard Serial Number (ISSN)

17518725

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 Institution of Engineering and Technology, All rights reserved.

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