Design and simulation of a Comb-line fed microstrip antenna array with low side lobe level at 77GHz for automotive collision avoidance radar

Abstract

This article presents design and simulation of Comb-line fed microstrip antenna array with low side lobe level at 77GHz which will be used in automotive collision avoidance radar. At the first, design of single antenna element will be presented. Then we propose the design of a row of microstrip antenna array with 32 elements and at final a to two-dimensional antenna array with 32 rows will be presented. The goal of design of this antenna is to acquire an appropriate radiation pattern with low side lobe level better than −21dB.