A Simple Microwave Frequency Coiwerter

Abstract

A microwave frequency converter composed of a harmonic oscillator directly connected to a Schottky diode mixer has been developed. The design tecniques are discussed and applied to the realization of a frequency converter for operating from 11 GHz to 1 GHz. The practical results of a prototype constructed on alumina substrate are as follows: conversion loss of 8 dB, noise figure of 8 dR, and a 3. dB conversion compression level of 0 dBm at the input.