L-band glass-epoxy 5-bit phase shifter module using SW-bank chips and low cost L, C chips

A low cost L-band 5-bit phase shifter module is described. This module is fabricated on a glass-epoxy substrate, and consists of GaAs SW-bank chips and high/low pass filters for phase shift circuits made up of chip inductors/capacitors. The fabricated module shows comparable features in size and RF performance to those of MMIC in a ceramic package.