60-GHz integrated-circuit high data rate quadriphase shift keying exciter and modulator
Abstract
An integrated-circuit quadriphase shift keying (QPSK) exciter and modulator have demonstrated excellent performance directly modulating a carrier frequency of 60 GHz with an output phase error of less than 3 degrees and maximum amplitude error of 0.5 dB. The circuit consists of a 60-GHz Gunn VCO phase-locked to a low-frequency reference source, a 4th subharmonic mixer, and a QPSK modlator packaged into a small volume of 1.8 x 2.5 x 0.35 in. The use of microstrip has the advantages of small size, light-weight, and low-cost fabrication. The unit has the potential for multigigabit data rate applications.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- December 1984
- DOI:
- 10.1109/TMTT.1984.1132910
- Bibcode:
- 1984ITMTT..32.1663G
- Keywords:
-
- Gunn Diodes;
- Integrated Circuits;
- Microwave Oscillators;
- Millimeter Waves;
- Modulators;
- Phase Shift Keying;
- Channel Capacity;
- Cost Reduction;
- Microstrip Devices;
- Mixing Circuits;
- Phase Error;
- Phase Locked Systems;
- Subharmonic Generators;
- Voltage Controlled Oscillators;
- Weight Reduction;
- Electronics and Electrical Engineering