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

Volume

4

fYear

1998

fDate

21-26 June 1998

Firstpage

2028

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1998. IEEE

Conference_Location

Atlanta, GA, USA

Print_ISBN

0-7803-4478-2

Type

conf

DOI

10.1109/APS.1998.701606

Filename

701606