In this paper a switched beam 4x1 linear antenna array is presented with a 4x4 butler matrix feed. For wideband operation aperture coupled antenna elements are used in the array whereas wideband hybrid couplers and cross couplers are used in the butler matrix feed. Design and simulation was carried out in IE3D® software, considering a Rogers RO3006 substrate. The array is designed to cover LTE bands at 2.3 & 2.6 GHz as well as the 2.4 GHz ISM band. The performance parameters from simulation are presented and analyzed. A total of 1:1.43 VSWR, bandwidth of 520 MHz is obtained with gain of 11 dB, directivity of ~12.5 dBi and efficiency greater than 70%. The radiation beam directions in azimuth are obtained at +15°, -15°, +45° and -45° for respective input port.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.