Title :
Microstrip antenna array with beamforming network for WLAN applications
Author :
Pham, Nhi T. ; Lee, Gye-An ; De Flaviis, Franco
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Irvine, CA, USA
Abstract :
A beamforming network with a multi-narrow-beam antenna array for WLAN applications is presented. The antenna array has four inputs and is excited by the Butler matrix feeding network to steer the beams electronically in the desired directions. The architecture of the Butler matrix beamforming network is analyzed with consideration of the coupling effects between fundamental elements of the network and the antenna array. The prototype is fabricated on a Rogers RT/duroid 5880 substrate with a relative permittivity of 2.2. Details of the simulated and measured results are investigated and analyzed.
Keywords :
antenna feeds; antenna radiation patterns; beam steering; electromagnetic coupling; microstrip antenna arrays; multibeam antennas; wireless LAN; 5.25 GHz; Butler matrix feeding network; WLAN applications; beam patterns; beam steering; beamforming network; coupling effects; microstrip antenna array; multi-narrow-beam antenna array; relative permittivity; Antenna arrays; Antenna feeds; Array signal processing; Butler matrix; Directive antennas; Microstrip antenna arrays; Microstrip antennas; Optical coupling; Prototypes; Wireless LAN;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552232
