Title :
Effect of coaxially loaded variable stub on the resonant frequency of circular microstrip antenna
Author :
Singh, Ranjit ; De, Asok ; Yadava, R.S.
Author_Institution :
Nat. Phys. Lab., New Delhi, India
Abstract :
A method is presented for the evaluation of the resonant frequencies of a circular microstrip patch antenna in the presence of a centered reactive load. The computed results reveal that the TM010 mode, which is absent when reactive load is removed, is generated in the presence of a reactive load. The reactive load can be used to produce a dual band element with the desired frequency separation between the bands and can also be used to control the operating frequency
Keywords :
antenna theory; microstrip antennas; resonance; TM010 mode; centered reactive load; circular microstrip patch antenna; coaxially loaded variable stub; dual band element; frequency separation; operating frequency control; resonant frequency; Bandwidth; Coaxial components; Differential equations; Dual band; Frequency estimation; Laboratories; Loaded antennas; Microstrip antennas; Resonant frequency; Variable speed drives;
Conference_Titel :
TENCON '89. Fourth IEEE Region 10 International Conference
Conference_Location :
Bombay
DOI :
10.1109/TENCON.1989.176930
