A Phased Array Antenna using Microstrip Patch Antennas

Abstract

A phased array antenna using microstrip for tne AMES (Aeronautical Maritime Engineering Satellite) airborne antenna. The phased array antenna has tested over a frequency range from 1.54 to 1.65 GHz. Scanning abilities up to +30 degrees have been verified over above the frequency range. The V.S.W.R is less than 2 to 1 over 8.4 percent bandwidth. By using the method suppressing the higher modes, the boresight axial ratio has been reduced to less than 0.8 dB.