Title :
Subharmonically Pumped Schottky Diode Single Sideband Modulator
fDate :
9/1/1978 12:00:00 AM
Abstract :
A subharmonically pumped single sideband Schottky diode modulator is described. Its advantages are a large carrier suppression and Iowered pumping frequency. The experimental 2-GHz MIC modulator pumped with an 8-mW signal exhibits a conversion loss of 6.2-7.3 dB over a 15-percent frequeney band. For a 120-mu W input modulating signal, the unwanted components in the output spectrum are at least 18 dB and mostly over 20 dB below the desired sideband.
Keywords :
Amplitude modulation; Coupling circuits; Frequency modulation; Observatories; Radio astronomy; Radiometers; Receivers; Schottky diodes; Switches; Voltage;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.1978.1129453
