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A GaAs Monolithic Sampling Phase Frequency Comparator for Extending the Pull-In Range of Microwave Phase-Locked Oscillators
Tadao NAKAGAWA Tetsuo HIROTA Takashi OHIRA
Publication
IEICE TRANSACTIONS on Electronics
Vol.E76-C
No.6
pp.944-949 Publication Date: 1993/06/25 Online ISSN:
DOI: Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Technology for Advanced Functions and Size-Reductions) Category: Keyword: sampling, phase frequency comparator, MMIC, Ku-band, pull-in range,
Full Text: PDF>>
Summary:
A novel sampling comparator circuit is presented for extending the pull-in range of microwave phase-locked oscillators (PLOs). It performs both phase and frequency detection without any frequency dividers, and a GaAs MMIC prototype is developed and tested. The proposed comparator improves the pull-in range by about 10 times more than is possible with conventional sampling phase detectors.
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