Title :
Shared aperture printed slot antenna
Author :
Gusain, H.S. ; Raghavan, Srinath ; Rao, Patnam
Author_Institution :
Dept. of Electron. & Commun., Nat. Inst. of Technol., Trichy, India
Abstract :
A circularly polarized (CP) printed slot antenna configuration on a shared aperture is proposed. Antenna is designed to operate at two distinct frequency bands of 4GHz and 8GHz. Dual slot CP elements at two frequencies are created on a common shared aperture and the antenna is fed by a single microstrip feed line. To achieve unidirectional beam, the slot antenna is backed by a stepped reflector. The stepped reflector is optimized to provide proper phase for pattern combining and axial ratio improvement at both the frequency bands. Antenna operates over a frequency range of 3.5 to 4.5GHz and 7.5 to 8.5GHz for a VSWR <;2. 3dB axial ratio beamwidth is 150 and 440 for 4GHz and 8GHz respectively on the shared aperture.
Keywords :
antenna feeds; aperture antennas; microstrip antennas; microstrip lines; reflector antennas; slot antennas; CP printed slot antenna configuration; antenna feed; axial ratio beamwidth; axial ratio improvement; circularly polarized printed slot antenna configuration; common shared aperture; distinct frequency bands; dual slot CP elements; frequency 3.5 GHz to 4.5 GHz; frequency 4 GHz; frequency 8 GHz; pattern combining; shared aperture printed slot antenna; single microstrip feed line; stepped reflector; unidirectional beam; Apertures; Electronic mail; Integrated optics; Reflector antennas; Remote sensing; Time frequency analysis; Circular polarization; dual slot; shared aperture; stepped reflector;
Conference_Titel :
Computing Communication & Networking Technologies (ICCCNT), 2012 Third International Conference on
Conference_Location :
Coimbatore
DOI :
10.1109/ICCCNT.2012.6395993
