Title :
Investigation of matching into PBG assisted VSAT antennas
Author :
Mollah, M.N. ; Karmakar, N.C.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
A shared aperture dual-aperture coupled rectangular microstrip antenna element suitable for very small aperture terminal (VSAT) perturbed by circular patterned uniform photonic bandgap structures (UPBGS) is investigated to see the improvement of matching at two ports of VSAT antenna without sacrificing required 10 dB return loss bandwidth (RL-BW) and isolation between two ports. The effect of inclusion of UPBGS on patch layer as well as slot and patch layers (double layers) have been observed to improve the matching at transmitting and received terminals of VSAT antenna. It can be seen that the inclusion of PBGS improves the matching. Double-layered UPBGS provide best matching.
Keywords :
aperture antennas; electromagnetic coupling; microstrip antennas; multifrequency antennas; photonic band gap; receiving antennas; satellite ground stations; slot antennas; transmitting antennas; VSAT antenna; circular pattern uniform photonic bandgap structure; dual band aperture coupled microstrip antenna; matching; patch layer; port isolation; port matching; receiving antenna; return loss bandwidth; slot layer; transmitting antenna; very small aperture terminal; Aperture antennas; Aperture coupled antennas; Bandwidth; Microstrip antennas; Optical losses; Pattern matching; Photonic band gap; Receiving antennas; Slot antennas; Transmitting antennas;
Conference_Titel :
Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on
Print_ISBN :
0-7803-8185-8
DOI :
10.1109/ICICS.2003.1292632
