Linear Microstrip Antenna Array with reduced patch size using L-shaped probe for electrically thick substrates

Abstract

This paper proposes the design of linear microstrip antenna and array using L-probe feeding technique. L- probe is an attractive feed technique, which can be used to avoid the use of electrically thick substrates. This feed technique is used to design antenna array with high gain. A 15-element linear array is designed to give bandwidth from 5.71 -5.91 GHz (|S 11 | < -10 dB) with peak gain of 18.9 dBi with stable radiation pattern over the bandwidth. The side lobe level is -14.3 dB at 5.86GHz.