TY  - JOUR
T1  - Design and Simulation 4x4 Butler Matrix Array for ISM-Band
AU - N. Salman Younis, Ayman 
JO  - Journal of Mobile Communication
VL  - 6
IS  - 2
SP  - 22
EP  - 27
PY  - 2012
DA  - 2001/08/19
SN  - 1990-794x
DO  - jmcomm.2012.22.27
UR  - https://makhillpublications.co/view-article.php?doi=jmcomm.2012.22.27
KW  - microstrip
KW  -Butler matrix
KW  -Switch beam smart antenna system
KW  -electromagnatic
KW  -substrate
KW  -tangent
AB  - This study proposes an 4x4 planar microstrip array antenna with Butler matrix performing network can be used for a switched beam smart antenna system. The prototype antenna is operating in the ISM from 2.4-2.48 GHz for WLAN applications. The antenna is built on a FR4 substrate with relative permittivity of &#949;<SUB>r</SUB> = 4.4, loss tangent of 0.02 and thickness of h = 1.6 mm. The performance of this smart antenna system was optimized and simulated by using commercially available full-wave, Method of Moment (MOM) based electromagnetic simulator Zeland IE3D.
ER  -