Abstract

This letter extends the finite difference time domain method to analyze millimeter-wave receivers. The full-wave active antenna modeling technique is designed to be applied to a quasi-optical receiver whereby the radio frequency and local oscillator power are fed in quasi-optically and received by the device functioning simultaneously as an antenna and a mixer. The millimeter-wave receiver being studied consists of an integrated annular slot element with a single planar Schottky barrier diode. Matching circuits and filters in coplanar waveguide line are connected to the annular slot design to create a low-profile receiver.

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