Title :
Novel compact handset antenna
Author :
Muscat, A.F. ; Parini, C.G.
Author_Institution :
London Univ., UK
Abstract :
A compact wide-band low-profile antenna is designed with the aid of a genetic algorithm and a finite-difference time-domain code. The wide-band input impedance is obtained with a Structure consisting of two gap-coupled shorted narrow patches. The variables in the optimisation loop are the length of the patches, the position of the probe feed and the shape of the coupling gap. The radiation patterns of the antenna feature a 4 dB front to back ratio and therefore power absorbed in the human head is reduced. The overall antenna is small enough to fit in a modern mobile phone handset case
Keywords :
antenna feeds; antenna radiation patterns; cellular radio; electric impedance; finite difference time-domain analysis; genetic algorithms; microstrip antenna arrays; mobile antennas; planar antenna arrays; telephone sets; FDTD code; PIFA; absorbed power reduction; cellular mobile phone handset; compact handset antenna; compact wide-band low-profile antenna; coupling gap shape; finite-difference time-domain code; front to back ratio; gap-coupled shorted narrow patches; genetic algorithm; human head; optimisation loop; patch length; probe feed position; radiation patterns; wide-band input impedance;
Conference_Titel :
Antennas and Propagation, 2001. Eleventh International Conference on (IEE Conf. Publ. No. 480)
Conference_Location :
Manchester
Print_ISBN :
0-85296-733-0
DOI :
10.1049/cp:20010300
