H - Electricity – 03 – D
Patent
H - Electricity
03
D
331/64, 331/69
H03D 13/00 (2006.01) H03L 7/087 (2006.01) H03L 7/10 (2006.01) H03L 7/20 (2006.01) H03L 7/091 (2006.01)
Patent
CA 1211167
Abstract of the disclosure A frequency-agile source of microwave frequency signals is shown to include: a voltage-controlled oscillator operating within a band of microwave frequencies; a crystal-controlled oscillator operating at a frequency lower than the band of microwave frequencies and producing harmonics within such band; a phase detector having samples of the signals out of the crystal-controlled oscillator and the voltage-controlled oscillator applied as input signals; and a shaping amplifier receiving the output signal of the phase detector to provide a control signal related to the phase difference between the signal out of the voltage-controlled oscillator and the harmonic of the crystal-controlled oscillator nearest to the frequency of the voltage-controlled oscillator.
456310
Campbell Richard A.
Galani Zvi
Raytheon Company
Smart & Biggar
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