Title :
A peripherally fed broadband modified circular microstrip antenna
Author :
Deepukumar, M. ; George, J. ; Aanandan, C.K. ; Mohanan, P. ; Nair, K.C.
Author_Institution :
Dept. of Electron., Cochin Univ. of Sci. & Technol., India
Abstract :
A new method for enhancing the impedance bandwidth of a circular microstrip antenna is presented. The technique used is to slightly perturb the circular symmetry by a peripheral cut. Unlike the circular patch the modified structure can be matched to a microstrip line along the periphery. Also the antenna exhibits polarisation diversity (with feed location). The radiation characteristics of the antenna are not affected by this structural modification. This new antenna may find applications in large broadband phased arrays with complex corporate peripheral microstrip line feed networks.
Keywords :
antenna feeds; antenna phased arrays; antenna radiation patterns; electromagnetic wave polarisation; microstrip antenna arrays; microstrip lines; antenna radiation characteristics; broadband modified circular microstrip antenna; circular symmetry; feed location; impedance bandwidth enhancement; large broadband phased arrays; microstrip line feed networks; peripheral cut; peripherally fed broadband microstrip antenna; polarisation diversity; structural modification; Antenna feeds; Bandwidth; Broadband antennas; Dielectric substrates; Frequency; Impedance; Microstrip antennas; Patch antennas; Polarization; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-3216-4
DOI :
10.1109/APS.1996.549536
