A broadband slotted ridge waveguide antenna array

A longitudinally-slotted ridge waveguide antenna array with a compact transverse dimension is presented. To broaden the bandwidth of the array, it is separated into two subarrays fed by a novel compact convex waveguide divider. A 16-element uniform linear array at X-band was fabricated and measured...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2006-08, Vol.54 (8), p.2416-2420
Main Authors: WEI WANG, ZHONG, Shun-Shi, ZHANG, Yu-Mei, LIANG, Xian-Ling
Format: Article
Language:English
Subjects:
Antenna arrays
Antenna measurements
Antennas
Aperture antennas
Applied sciences
Arrays
Bandwidth
Broadband antennas
Construction
Exact sciences and technology
Linear antenna arrays
Noise levels
Polarization
power divider
Radar antennas
Radiocommunications
Radiolocalization and radionavigation
ridge waveguide
Ridges
Slot antennas
slot array
Synthetic aperture radar
Telecommunications
Telecommunications and information theory
Waveguide antennas
Waveguides
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Summary:A longitudinally-slotted ridge waveguide antenna array with a compact transverse dimension is presented. To broaden the bandwidth of the array, it is separated into two subarrays fed by a novel compact convex waveguide divider. A 16-element uniform linear array at X-band was fabricated and measured to verify the validity of the design. The measured bandwidth of S 11 les-15 dB is 14.9% and the measured cross- polarization level is less than -36 dB over the entire bandwidth. This array can be combined with the edge-slotted waveguide array to build a two-dimensional dual-polarization antenna array for the synthetic aperture radar (SAR) application
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2006.879216