Broad-band varactor-tuned impatt-diode oscillator.
Abstract
A varactor-tuned IMPATT-diode oscillator with a continuous and monotonic tuning bandwidth of 27 percent and a potential tuning range in excess of 40 percent is described. The results of a computer program which optimizes the tuning bandwidth of the equivalent circuit of the voltage-controlled oscillator (VCO) are presented. The VCO consists of two varactors located symmetrically on each side of an IMPATT diode all mounted in a ridged waveguide with two matched outputs into 50-ohm coaxial. Experimental results on bandwidth, power output, frequency linearity, and FM noise are presented.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- June 1975
- DOI:
- 10.1109/TMTT.1975.1128608
- Bibcode:
- 1975ITMTT..23..501C
- Keywords:
-
- Avalanche Diodes;
- Broadband;
- Microwave Oscillators;
- Tuning;
- Varactor Diodes;
- Automatic Frequency Control;
- Computer Programs;
- Equivalent Circuits;
- Optimization;
- Satellite Instruments;
- Waveguides;
- Electronics and Electrical Engineering