Title :
Broadband dual frequency microstrip antenna
Author :
Deepukumar, M. ; George, J. ; Aanandan, C.K. ; Mohanan, P. ; Nair, K.G.
Author_Institution :
Dept. of Electron., Cochin Univ. of Sci. & Technol., India
fDate :
8/15/1996 12:00:00 AM
Abstract :
A new dual port microstrip antenna geometry for dual frequency operation is presented. The structure consists of the intersection of two circles of the same radius with their centres displaced by a small fraction of the wavelength. This antenna provides wide impedance bandwidth and excellent isolation between its ports. The gain of the antenna is comparable to that of a standard circular microstrip antenna operating at the same resonant frequency. A theoretical analysis for calculating the resonant frequencies of the two ports is also presented
Keywords :
antenna theory; electromagnetic wave polarisation; microstrip antennas; resonance; broadband microstrip antenna; dual frequency operation; dual port microstrip antenna geometry; orthogonal polarisation; resonant frequencies calculation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19961056
