Two-layer slotted-waveguide antenna array with broad reflection/gain bandwidth at millimetre-wave frequencies

S. S. Oh; J. W. Lee; M. S. Song; Y. S. Kim

doi:10.1049/ip-map:20040813

Two-layer slotted-waveguide antenna array with broad reflection/gain bandwidth at millimetre-wave frequencies

S. S. Oh, J. W. Lee, M. S. Song, Y. S. Kim

* Honorary professors

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

38 Citations (Scopus)

Abstract

A 24 × 24 slotted-waveguide array antenna is presented in the paper. The subarray concept is introduced to provide a broad reflection and gain bandwidth. A waveguide feed network is proposed to feed equal amplitudes and equal phases to the subarrays; it is composed of two layers, and is thus more compact and simpler than conventional feed networks. The subarray is made up of the feeding waveguide coupling slot, radiating waveguide and radiating slot. The measured reflection bandwidth is 5.5% (VSWR ≤2.0) and 9.5% (VSWR ≤2.7). The antenna gain varies within 2.1 dB over 4 GHz (9.5%). The maximum gain is 33.8 dBi at 41.5 and 42.5 GHz.

Original language	English
Pages (from-to)	393-398
Number of pages	6
Journal	IEE Proceedings: Microwaves, Antennas and Propagation
Volume	151
Issue number	5
DOIs	https://doi.org/10.1049/ip-map:20040813
Publication status	Published - 2004 Oct

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering

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abstract = "A 24 × 24 slotted-waveguide array antenna is presented in the paper. The subarray concept is introduced to provide a broad reflection and gain bandwidth. A waveguide feed network is proposed to feed equal amplitudes and equal phases to the subarrays; it is composed of two layers, and is thus more compact and simpler than conventional feed networks. The subarray is made up of the feeding waveguide coupling slot, radiating waveguide and radiating slot. The measured reflection bandwidth is 5.5% (VSWR ≤2.0) and 9.5% (VSWR ≤2.7). The antenna gain varies within 2.1 dB over 4 GHz (9.5%). The maximum gain is 33.8 dBi at 41.5 and 42.5 GHz.",

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AU - Lee, J. W.

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AU - Kim, Y. S.

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AB - A 24 × 24 slotted-waveguide array antenna is presented in the paper. The subarray concept is introduced to provide a broad reflection and gain bandwidth. A waveguide feed network is proposed to feed equal amplitudes and equal phases to the subarrays; it is composed of two layers, and is thus more compact and simpler than conventional feed networks. The subarray is made up of the feeding waveguide coupling slot, radiating waveguide and radiating slot. The measured reflection bandwidth is 5.5% (VSWR ≤2.0) and 9.5% (VSWR ≤2.7). The antenna gain varies within 2.1 dB over 4 GHz (9.5%). The maximum gain is 33.8 dBi at 41.5 and 42.5 GHz.

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Two-layer slotted-waveguide antenna array with broad reflection/gain bandwidth at millimetre-wave frequencies

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