A NANOSECOND MICROWAVE BURST GENERATOR USING RESONANT BUILDUP FOR OUTPUT PEAK POWER ENHANCEMENT.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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A system has been developed for generating nanosecond-order pulses of microwave energy with the output pulse amplitude considerably higher than the input CW source level. The system uses a PIN diode switched waveguide cavity for a pulse forming device. The output pulse width is shown to be directly proportional to the actual cavity length. Minimum pulse width and degree of enhancement of the output amplitude are shown to be a function of the switching time and loss characteristics of the switch. Pulse widths as narrow as 4.3 nsec and enhancements as high as 4.8 dB were obtained using pulse repetition rates from zero to 500 KHz. The output level enhancement feature of this system is its chief advantage over other nanosecond RF pulse generators. Other advantages of the system are its relative low cost, simplicity of tuning, versatility of pulse width and repetition rate, and its adaptability for rugged construction. Author
- Electrical and Electronic Equipment