Title :
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
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2013.2291906
