U-Band Spectrum Analyzer Harmonic Mixer

STH-19SF-S1 is a V Band harmonic mixer that employs single diode and broadband circuitry to deliver low conversion loss and continuous frequency coverage for full waveguide band operation covering the frequency range of 40 to 60 GHz. The mixer extends the operation frequency of the test instruments like the spectrum analyzer and frequency counter from 18 GHz or below to full U band operations. Unlike the balanced harmonic mixer, model number SFH-19SFSF-A3, the spectrum analyzer mixer does not have a built-in frequency diplexer. Therefore, their LO and IF ports are combined to a common coaxial port where LO and IF signals share. This feature provides a convenient connection ability when used with the spectrum analyzer or frequency counter models having built-in diplexer, i.e., combined LO and IF port, such as the models offered by Advantest, Anritsu, Rohde & Schwarz, some Keysight models and Tektronix and National Instruments/Phase Matrix (EIP).