Title :
The synthesis of planar inverted F antennas with a slit using the TLM method
Author :
Geng, H. ; Hira, M. ; Shiozawa, T.
Author_Institution :
Dept. of Commun. Eng., Osaka Univ., Japan
Abstract :
An optimization procedure for the synthesis of planar inverted F antennas with a slit (PIFAs) is presented. The procedure uses a TLM code for the circuit analysis. The characteristics of PIFAs with a slit introduced for the reduction in their size are synthesized. In particular, we discuss the effect of length and position of the slit on their resonant frequency and radiation directivity
Keywords :
S-parameters; antenna radiation patterns; antenna theory; electrical engineering computing; iterative methods; microstrip antennas; mobile antennas; optimisation; search problems; transmission line matrix methods; Powell´s method; S-parameter extraction; TLM code; circuit analysis; direct search method; ground plane; impedance analysis; irregularly graded space; iteration procedure; microstrip line; optimization procedure; planar inverted F antennas with slit; radiation directivity; resonant frequency; size reduction; slit length; slit position; synthesis; wideband absorbing boundary conditions; Circuit analysis; Circuit synthesis; Computational geometry; Health information management; Optical polarization; Optimization methods; Resonant frequency; Scattering; Transmission line matrix methods; Voltage;
Conference_Titel :
Microwave Conference Proceedings, 1997. APMC '97, 1997 Asia-Pacific
Print_ISBN :
962-442-117-X
DOI :
10.1109/APMC.1997.656401
