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Choi, Jaehyouk
Integrated Circuits and Systems Lab (ICSL)
Research Interests
  • RF/Analog/Mixed IC design, low power CMOS IC, wired/wireless TRX IC, clock generation IC

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A Reconfigurable Multiphase LC-Ring Structure for Programmable Frequency Multiplication

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Title
A Reconfigurable Multiphase LC-Ring Structure for Programmable Frequency Multiplication
Author
Kim, DongukChoi, SubinChoi, JaehyoukKim, Jae Joon
Issue Date
2015-01
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v.62, no.1, pp.51 - 55
Abstract
This brief presents a reconfigurable $LC$-ring structure and a programmable millimeter-wave low-power frequency multiplier that were combined together to achieve a maximum power-saving effect of 73% depending on operation modes. The proposed multiphase $LC$ ring is reconfigurable to change the number of stages and thereby minimize current consumption depending on the number of phases necessary in an application. The programmable multiplier is implemented to reduce its current consumption by 82% through an inverter-type input circuit. A millimeter-wave frequency multiplier prototype, including the reconfigurable multiphase $LC$ ring, was fully integrated in a 65-nm CMOS process and experimentally verified to provide programmable frequency multiplication over triple frequency bands of 12.6-15.2, 25.2-30.4, and 50.4-60.8 GHz, utilizing a 6.3- to 7.6-GHz multiphase $LC$ ring.
URI
https://scholarworks.unist.ac.kr/handle/201301/9806
URL
https://ieeexplore.ieee.org/document/6922506
DOI
10.1109/TCSII.2014.2362741
ISSN
1549-7747
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