Low cross-polarization array antenna with suspended probe-feed

Abstract

This paper describes the development and performance of a 2 by 4 element suspended microstrip patch antenna array with linear polarization. The proposed structure with a new geometrical composition of entire array possesses the advantages of being wide bandwidth, high gain, precise side lobe level control and low cross-polarization level. The measured antenna has the peak gain 14.12 dBi and the cross-polarization is lower than 16 dBi within the impedance bandwidth. (c) 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:825829, 2013; View this article online at wileyonlinelibrary.com. DOI: 10.1002/mop.27423