Development of a Linearly Polarized Circular Substrate-Integrated Waveguide Cavity-Backed 2 × 2-Slot Antenna Array

This article presents two new cavity-backed slot antennas utilizing substrate-integrated waveguide technology and offering high gain. Radiation performances of the proposed antennas are experimentally and numerically evaluated. Using two slots backed by a circular cavity, one can improve antenna gai...

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Bibliographic Details
Published in:Electromagnetics 2015-04, Vol.35 (3), p.177-189
Main Authors: Dashti, H., Neshati, Mohammad H.
Format: Article
Language:English
Subjects:
Antenna arrays
Antennas
Boards
cavity-backed antenna
Circularity
Electromagnetics
Gain
Holes
Noise levels
Numerical analysis
Performance evaluation
Printed circuit boards
Printed circuits
Radiation
slot antenna
substrate-integrated waveguide
Waveguides
Citations: Items that this one cites
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Description
Summary:This article presents two new cavity-backed slot antennas utilizing substrate-integrated waveguide technology and offering high gain. Radiation performances of the proposed antennas are experimentally and numerically evaluated. Using two slots backed by a circular cavity, one can improve antenna gain by 2 dB over the gain of a single-slot antenna. Then a 2 × 2-slot antenna array backed by two cavities is presented, which offers a gain of 9.2 dBi, which is 4.2 dB and 2.2 dB higher than the gain of single- and two-slot antennas, respectively. All the proposed antenna structures are made on a single-layer substrate, and a low-cost printed circuit board process is used for fabrication.
ISSN:0272-6343
1532-527X
DOI:10.1080/02726343.2015.1005201