Miniaturized optical and microwave receiver module using double conductor CPWs for active phased array antennas

Abstract

Miniaturized optical and microwave receiver module using DCCPWs (double conductor coplanar waveguides) has been developed for active phased array antennas. This antenna requires flexible, lightweight, and low loss feeders to element radiators. This module comprised of a microstrip-to-slot transition, two chips of low-noise MMIC amplifiers, and a laser diode module is fabricated on an ultrathin package with 10/spl times/30/spl times/1.5 mm3 in size and 2 g in weight to achieve an ultra-thin structure of active phased array antenna panels. To provide low noise and ultra-thin size, DCCPWs are employed in the design of input matching circuit of low-noise MMIC amplifiers. In addition, the ultra-thin structure is attributed to the design of laser diode modules using silicon V-groove technology and fiber alignment method.