TNP #11 – Teardown & Analysis of a 75-110GHz (W-Band) Waveguide mm-Wave Balanced Mixer Module

In this episode Shahriar investigates the mysteries of a W-Band fundamental LO balanced mixer module based on GaAs Schottky Barrier Diodes. The mixer offers a very high IF bandwidth of 35GHz and LO driver requirements of 13dBm between 75-110GHz.
The teardown reveals the waveguide to coaxial transitions as well as the interface to the pair of Schottky diodes. High resolution microscope analysis provides a detailed view of the precise machined waveguide ports.

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