A planar quasi-optical subharmonically pumped mixer characterized by isotropic conversion loss
Abstract
By using a subharmonically pumped circuit in a quasi-optical planar mixer, it has been found possible to use an LO frequency of one-half the normal value with little added circuit complexity. This circuit shows conversion loss as low as 8.6 dB + or - 2 dB at 14 GHz. Through the means of a newly defined quasi-optical mixer parameter called isotropic conversion loss, it is found that performance of the mixer system degrades less than 10 dB from an RF input of 14 GHz to 35 GHz, which is more than twice the designed RF frequency.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- January 1984
- DOI:
- 10.1109/TMTT.1984.1132618
- Bibcode:
- 1984ITMTT..32...97S
- Keywords:
-
- Frequency Converters;
- Harmonic Excitation;
- Microwave Circuits;
- Mixing Circuits;
- Optical Pumping;
- Signal Mixing;
- Energy Conversion Efficiency;
- Energy Dissipation;
- Equivalent Circuits;
- Microwave Antennas;
- Microwave Oscillators;
- Mixers;
- Planar Structures;
- Subharmonic Generators;
- Electronics and Electrical Engineering