Modeling of Stepped-Impedance Slot Antenna

Author

Chien-Jen Wang ; Ling-Ting Chen

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Tainan, Tainan, Taiwan

Volume

62

Issue

2

fYear

2014

fDate

Feb. 2014

Firstpage

955

Lastpage

959

Abstract

In this study, the resonant analysis and modeling of the microstrip-fed stepped-impedance (SI) slot antenna are presented by utilizing the transmission-line and lumped-element circuit topologies. This study analyzes the SI-slot antenna and systematically summarizes its frequency response characteristics, such as the resonance condition, spurious response, and equivalent circuit. Design formulas with respect to the impedance ratio of the SI slot antenna were analytically derived. The antenna designers can predict the resonant modes of the SI slot antenna without utilizing expensive EM-simulation software.

Keywords

antenna feeds; frequency response; microstrip antennas; slot antennas; transmission lines; EM-simulation software; SI; equivalent circuit; frequency response characteristics; impedance ratio; lumped-element circuit topology; microstrip-fed stepped-impedance slot antenna; resonance condition; resonant analysis; spurious response; transmission-line; Antenna measurements; Impedance; Integrated circuit modeling; Microstrip; Microstrip antennas; Resonant frequency; Slot antennas; Electric length; equivalent circuit; spurious response; stepped-impedance slot antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2013.2291906

Filename

6671375