Title :
Tuneable and dual-band circular microstrip antenna with stubs
Author :
Ray, K.P. ; Kumar, Girish
Author_Institution :
SAMEER, Indian Inst. of Technol., Mumbai, India
fDate :
7/1/2000 12:00:00 AM
Abstract :
A circular microstrip antenna loaded along its feed axis with either one stub or two stubs has been analyzed using an improved linear transmission line model. When the length of the stub is small, the frequency is tuned over a 9% range in the L-band and, when it is comparable to λ/4, it exhibits dual-frequency operation. The experimental results are in good agreement with the theoretical results
Keywords :
UHF antennas; antenna accessories; antenna radiation patterns; microstrip antennas; multifrequency antennas; transmission line theory; 1.585 to 2.982 GHz; L-band; dual-frequency operation; linear transmission line model; stubs; tuneable dual-band circular microstrip antenna; Antenna feeds; Bandwidth; Dual band; Frequency measurement; Impedance; Length measurement; Loaded antennas; Microstrip antennas; Resonant frequency; Tuning;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
