Dual bandwidth loop filter with sweep generator

Oscillators – Automatic frequency stabilization using a phase or frequency... – Search sweep of oscillator

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331 17, H03B 304

Patent

active

040770150

ABSTRACT:
A dual bandwidth loop filter includes a filter loop, resistive means, switching means for coupling and decoupling the resistive means for changing the bandwidth of the loop from a wider acquisition bandwidth to a narrower tracking bandwidth and a sweep generator for enabling the filter to provide sweep acquisition of an incoming signal.

REFERENCES:
patent: 2932793 (1960-04-01), Smith et al.
patent: 3158820 (1964-11-01), Lamplot
patent: 3346814 (1967-10-01), Haggai
patent: 3621399 (1971-11-01), Rabow
patent: 4007429 (1977-02-01), Cadalora

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