A low profile, wideband cavity-backed bowtie antenna

Shi Gang Zhou; Guan Long Huang; Tan Huat Chio

doi:10.1002/mop.27573

A low profile, wideband cavity-backed bowtie antenna

Shi Gang Zhou, Guan Long Huang, Tan Huat Chio

National University of Singapore

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

16 Scopus citations

Abstract

In this article, a cavity-backed bowtie antenna (CBBA) is proposed and investigated.Compared with the conventional CBBA, parasitic stubs are added to the open-end of the Bowtie. The parasitic stubs provide capacitive loading and allows the design to exhibit a low profile over a relatively wide bandwidth. Parametric studies are performed to optimize the antenna performance. For verification, a prototype was fabricated and measured. Experimental results show the VSWR of less than 2.0:1 from 1.97 to 8.5 GHz. However, the radiation pattern degrades beyond 7.5 GHz. This limits the operating bandwidth to about 117%. The height of the prototype is 15 mm which is only 0.1 λ_max (λ_max is the wavelength at the lowest operating frequency) © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1422-1426, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27573

Original language	English
Pages (from-to)	1422-1426
Number of pages	5
Journal	Microwave and Optical Technology Letters
Volume	55
Issue number	6
DOIs	https://doi.org/10.1002/mop.27573
State	Published - Jun 2013
Externally published	Yes

Keywords

bowtie antennas
cavity-backed antennas
low profile antenna
wideband antenna

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10.1002/mop.27573

Cite this

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A low profile, wideband cavity-backed bowtie antenna

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Keywords

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