The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON COMMUNICATIONS
Transactions ID Number: 52-381
Full Name: Monthippa Uthansakul
Position: Assistant Professor
Age: ON
Sex: Female
Address: School of Telecommunication Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima
Country: THAILAND
Tel: +66-44-224361
Tel prefix:
Fax: +66-44-224603
E-mail address: mtp@sut.ac.th
Other E-mails: mtp@g.sut.ac.th
Title of the Paper: performance evaluation of automatic switched-beam antennas for indoor wlan systems
Authors as they appear in the Paper: Monthippa Uthansakul, Peerapong Uthansakul, Paleerat Wongchompa
Email addresses of all the authors: mtp@sut.ac.th,uthansakul@sut.ac.th,m5340538@g.sut.ac.th
Number of paper pages: 12
Abstract: In this paper, the design of a compact low cost switched-beam antenna for users in Wireless Local Area Networks (WLANs) is introduced. Four antenna elements are arranged in 2×2 lattice. The modification of beamforming network based on Butler matrix is originally proposed for 2×2 planar array. The design is verified through computer simulations and also the prototype of automatic switched-beam antenna is constructed to confirm its performance. Moreover, the validation of performance enhancement is investigated through the signal strength measurements at the users operating in existing WLAN infrastructure. The results confirm the advantage of switched-beam antenna employing modified Butler matrix by improving signal strength with average power of 4.37 dB over the use of omni-directional antenna.
Keywords: Antenna arrays, Beamforming, Butler matrix, Measurement, Signal strength, WLANs
EXTENSION of the file: .pdf
Special (Invited) Session:
Organizer of the Session:
How Did you learn about congress: Antenna, Array processing, Wireless communication systems
IP ADDRESS: 203.158.4.226
