Title :
Compact arrow shaped antenna with embedded rectangular slot for dual frequency dual polarisation operation
Author :
Paulson, Manju ; Kundukulam, Sona O. ; Aanandan, C.K. ; Mohanan, P.
Author_Institution :
Dept. of Electron., Cochin Univ. of Sci. & Technol., India
Abstract :
A compact arrow shaped microstrip antenna with a rectangular slot is proposed. By embedding a rectangular slot in the patch an additional resonance frequency having opposite polarization compared to the TM10 mode is generated This new frequency is much lower than the TM01 mode frequency of the patch without a slot. The ratio between the two resonant frequencies can be tuned in a wide range by changing the slot length. These two orthogonal modes can also be combined to achieve circularly polarized radiation. The antenna offers an area reduction ∼75% compared to a rectangular patch antenna designed for the same frequency.
Keywords :
antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; multifrequency antennas; slot antennas; circularly polarized radiation; compact arrow shaped antenna; dual frequency operation; dual polarisation operation; embedded rectangular slot; microstrip antenna; orthogonal modes; resonance frequency; slot length; tuning; Antenna feeds; Dielectric substrates; Electromagnetic coupling; Etching; Frequency; Microstrip antennas; Patch antennas; Permittivity; Polarization; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2002. IEEE
Print_ISBN :
0-7803-7330-8
DOI :
10.1109/APS.2002.1016027
