X-Band Integrated Circuit Mixer with Reactively Terminated Image

The development of the Schottky barrier diode along with microwave integrated circuit techniques makes possible miniature high performance microwave detectors. This paper describes a low noise microwave integrated circuit mixer using Schottky barrier diodes and reactively terminated image with a 500 MHz thin film IF preamplifier. The entire mixer-IF preamplifier occupies an area of only 0.38 square inches and has a noise figure of 6.7 dB.