Title :
FDTD optimization of beam forming network for multibeam antenna
Author :
Fu, K.K. ; Lai, A.K.Y.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Abstract :
A 4/spl times/4 Butler matrix beam forming network for multibeam antennas was designed and optimised in terms of packing density, amplitude and phase accuracy and other properties. The finite-difference time-domain (FDTD) method with perfectly matched layer (PML) termination was used to optimise return loss, insertion loss and output phases of the network. The computed performance for the final design was compared with measurement.
Keywords :
antenna feeds; finite difference time-domain analysis; microstrip antenna arrays; multibeam antennas; optimisation; 2.53 GHz; Butler matrix beam forming network; FDTD optimization; PML termination; antenna array; aperture coupled patch antenna; feed network; finite-difference time-domain; insertion loss optimisation; multibeam antenna; output phase optimisation; perfectly matched layer; return loss optimisation; Butler matrix; Circuits; Couplers; Design optimization; Finite difference methods; Insertion loss; Perfectly matched layers; Propagation losses; Time domain analysis; Voltage;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.701606
