Meandering Long Slot Leaky-Wave Waveguide Antennas

Frank L. Whetten, Constantine Balanis

Research output: Contribution to journalArticlepeer-review

70 Scopus citations


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 languageEnglish (US)
Pages (from-to)1553-1560
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Issue number11
StatePublished - Nov 1991

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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