A multilayered microstrip phased array for mobile satellite communications

A multilayered microstrip phased array antenna was designed and developed to suit the requirements of a mobile satellite system. The antenna developed was of low profile, mechanically steerable in azimuth plane, had a fixed beam in elevation plane to provide a coverage from 40/spl deg/ to 65/spl deg/ above horizon, a minimum G/T of -12 dBK over a frequency span of 135 MHz, side lobe levels of 13 dB below the beam peak. The paper describes the design, pattern, gain and noise temperature measurements of the developed array.