Title :
Back radiation suppression of aperture coupled microstrip antennas using photonic bandgap back shield
Author :
Karmakar, Nemai C.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
Design and experimental results of a dual-aperture coupled rectangular microstrip patch antenna element, suitable for portable VSAT terminals, are presented. The dual-band dual-polarised antenna element achieves 21% input impedance bandwidth at S- and C-bands. A PBG back shield is implemented to improve the antenna F/B radiation level by about 30 dB.
Keywords :
aperture antennas; electromagnetic coupling; electromagnetic shielding; electromagnetic wave polarisation; microstrip antennas; microwave photonics; mobile antennas; mobile handsets; mobile satellite communication; photonic band gap; satellite ground stations; 1.55 to 5.2 GHz; 3.9 to 6.2 GHz; C-band antenna; PBG back shield; S-band antenna; antenna F/B radiation level; antenna design; aperture coupled microstrip antennas; back radiation suppression; dual-aperture coupled rectangular microstrip patch antenna element; dual-band dual-polarised antenna element; input impedance bandwidth; photonic bandgap back shield; portable VSAT terminals; Antenna feeds; Aperture antennas; Aperture coupled antennas; Bandwidth; Frequency; Linear antenna arrays; Microstrip antennas; Patch antennas; Photonic band gap; Receiving antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220408
