Title :
Design and implementation of a compact Butler matrix using mitered bends
Author :
Mariadoss, Prakash Quinton ; Rahim, Mohamad Kamal A ; Aziz, Mohd Zoinol Abidin Abd
Author_Institution :
Wireless Commun. Centre, Universiti Teknologi, Malaysia
Abstract :
This paper presents the design and realization of a four-port Butler matrix to feed a switched beam antenna array for wireless local area network (WLAN) at 2.4 GHz. A compact Butler matrix using mitered bends has been fabricated on the FR4 PCB. The design is small and the transmission lines are placed as close as possible. Results from simulation and measurement are then being compared in term of return loss (Sii), transmission (Sji), isolation (Sij) and the phase difference.
Keywords :
UHF antennas; adaptive antenna arrays; antenna feeds; antenna radiation patterns; array signal processing; transmission lines; wireless LAN; 2.4 GHz; beam forming networks; compact Butler matrix; four-port Butler matrix; mitered bends; smart antennas; switched beam antenna array; transmission lines; wireless local area network; Antenna arrays; Antenna measurements; Butler matrix; Directional antennas; Feeds; Loss measurement; Phase measurement; Transmission line matrix methods; Transmission line measurements; Wireless LAN; Beam Forming Network; Butler Matrix; Smart Antenna; WLAN;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606980
