Title :
Design of electromagnetically coupled microstrip slot antenna by FDTD-equivalent circuit method
Author :
Iwasaki, Takashi ; Suga, Hiroyoshi
Author_Institution :
Univ. of Electro-Commun., Tokyo, Japan
Abstract :
A method for designing an electromagnetically coupled microstrip slot antenna is investigated. The method is based on an equivalent circuit approach, in which the slot part of the antenna is analysed by the FDTD method and the stub part is regarded as a transmission line. The antennas are designed in the 2-10 GHz range by this method. The reflection coefficients are measured using a network analyser with its Through-Reflect-Line (TRL) calibration. As a result, it is pointed out that this method is applicable under the condition that the length of the stub is longer than the width of the microstrip. It is also shown that offset feeding is effective in reducing the restriction of the stub length
Keywords :
antenna theory; electromagnetic coupling; equivalent circuits; finite difference time-domain analysis; impedance matching; microstrip antennas; slot antennas; 2 to 10 GHz; EM coupled microstrip slot antenna; FDTD-equivalent circuit method; TRL calibration; electromagnetically coupled microstrip slot antenna; microstrip stub part; network analyser; offset feeding; reflection coefficients; transmission line; Antenna accessories; Coupling circuits; Design methodology; Distributed parameter circuits; Electromagnetic coupling; Equivalent circuits; Finite difference methods; Microstrip antennas; Slot antennas; Transmission line antennas;
Conference_Titel :
Microwave Conference, 2000 Asia-Pacific
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6435-X
DOI :
10.1109/APMC.2000.925937
