The measured and computed performance of a 140-220GHz Schottky diode mixer
Abstract
In this paper, a comparison is conducted of the measured and theoretical performance of a room-temperature single-ended Schottky diode mixer in the WR-5 (140-220-GHz) waveguide band. Using the computer program GISSMIX, combined with measurements made on a 100x scale model of the WR-5 mixer, it was possible to predict the millimeter-wave mixer performance over a wide tuning range with unprecedented accuracy. In addition, the sensitivity of the mixer performance to various diode and mount characteristics was examined. The measured conversion loss and mixer noise temperature, single sideband, are 5.7 dB and 750 K at 180 GHz, and 5.7 dB and 500 K at 150 GHz, which is believed to be the best reported for a room-temperature mixer at these frequencies.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- December 1984
- DOI:
- 10.1109/TMTT.1984.1132897
- Bibcode:
- 1984ITMTT..32.1579S
- Keywords:
-
- Microwave Circuits;
- Millimeter Waves;
- Mixing Circuits;
- Performance Prediction;
- Schottky Diodes;
- Signal Mixing;
- Computer Programs;
- Computerized Simulation;
- Design Analysis;
- Electromagnetic Noise Measurement;
- Equivalent Circuits;
- Noise Temperature;
- Performance Tests;
- Signal Measurement;
- Electronics and Electrical Engineering