Design of frequency-agile microstrip antennas with conical-beam radiation

Jia Fu Tsai; Jeen Sheen Row

doi:10.1002/mop.25832

Design of frequency-agile microstrip antennas with conical-beam radiation

Jia Fu Tsai, Jeen Sheen Row

Department of Electrical Engineering

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

A microstrip antenna with frequency agility is described in this article.The antenna has a circular radiating patch and operates at its TM ₀₁ mode to generate omnidirectional radiation across the azimuthal plane. To change the resonant frequency, a capacitor is introduced and connected to the antenna input port in series. With the increasing of capacitance, the resonant frequency is decreased while the resonant resistance and radiation characteristic nearly remain constant. Experimental results indicate that the design can provide a frequency tunable range of 22%; moreover, good impedance matching and stable radiation pattern are also obtained in the range.

Original language	English
Pages (from-to)	783-785
Number of pages	3
Journal	Microwave and Optical Technology Letters
Volume	53
Issue number	4
DOIs	https://doi.org/10.1002/mop.25832
Publication status	Published - 2011 Apr 1

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All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

Cite this

Tsai, J. F., & Row, J. S. (2011). Design of frequency-agile microstrip antennas with conical-beam radiation. Microwave and Optical Technology Letters, 53(4), 783-785. https://doi.org/10.1002/mop.25832

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Access to Document

10.1002/mop.25832