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http://dx.doi.org/10.5515/KJKIEES.2007.18.5.522

Wideband Tunable Semidynamic Fractional Frequency Divider MMIC  

Won, Bok-Yeon (Department of Radio Science and Engineering, Kwangwoon University)
Shin, Jae-Wook (Department of Radio Science and Engineering, Kwangwoon University)
Shin, Hyun-Chol (Department of Radio Science and Engineering, Kwangwoon University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.18, no.5, 2007 , pp. 522-529 More about this Journal
Abstract
A semidynamic frequency divide-by-1.5 MMIC comprises a tunable polyphase filter, tunable image-rejection mixer, and a static divide-by-2 in the feedback path. Wideband suppression of unwanted tones is achieved by employing a tunable image-rejection mixer and a tunable single-stage polyphase filter. Implemented in GaInP/GaAs HBT technology, the divide-by-1.5 MMIC operates over the input frequency range of 4.5 to 9.2 GHz with better than -20 dBc suppressions of $1/3{\times}f_{in}\;and\;f_{in}$ tones, while dissipating 29 mA from 4.1 V supply.
Keywords
MMIC; Dynamic Frequency Divider; GaInP/GaAs HBT; Phase Shifter;
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