Meandering Long Slot Leaky-Wave Waveguide Antennas

Frank L. Whetten; Constantine Balanis

doi:10.1109/8.102768

Meandering Long Slot Leaky-Wave Waveguide Antennas

Frank L. Whetten, Constantine Balanis

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

72 Scopus citations

Abstract

A theoretical study is made of the aperture field distributions, the far-field amplitude patterns, and the mutual coupling characteristics of several long leaky-wave slot antennas cut on the broadwall of a rectangular waveguide mounted in an infinite ground plane. Straight long slots have high inner side lobes in the far field amplitude patterns, which reduces their utility as high-performance antennas. To reduce these sidelobes, a long slot may be meandered from waveguide centerline to sidewall and back to centerline in such a way to produce the desired radiation patterns. Calculated results for antennas of several meander patterns are presented and discussed.

Original language	English (US)
Pages (from-to)	1553-1560
Number of pages	8
Journal	IEEE Transactions on Antennas and Propagation
Volume	39
Issue number	11
DOIs	https://doi.org/10.1109/8.102768
State	Published - Nov 1991

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/8.102768

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AB - A theoretical study is made of the aperture field distributions, the far-field amplitude patterns, and the mutual coupling characteristics of several long leaky-wave slot antennas cut on the broadwall of a rectangular waveguide mounted in an infinite ground plane. Straight long slots have high inner side lobes in the far field amplitude patterns, which reduces their utility as high-performance antennas. To reduce these sidelobes, a long slot may be meandered from waveguide centerline to sidewall and back to centerline in such a way to produce the desired radiation patterns. Calculated results for antennas of several meander patterns are presented and discussed.

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Meandering Long Slot Leaky-Wave Waveguide Antennas

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