4.8GHz CMOS frequency multiplier with subharmonic pulse-injection locking

Kyoya Takano, Mizuki Motoyoshi, Minoru Fujishima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

28 Citations (Scopus)

Abstract

To realize low-power wireless transceivers, it is required to improve the performance of a frequency synthesizer, which is typically used as a frequency multiplier and is composed of a phase-locked loop (PLL). However a general PLL consumes much power and occupies a large area. To improve the frequency multiplier, we propose a pulse-injection-locked frequency multiplier (PILFM), in which spurious signals are suppressed by using a pulse input signal. An injection-locked oscillator (ILO) in a PILFM was fabricated by a 0.18mm 1P5M CMOS process. The core size was 10.8mm x 10.5mm. The power consumption of the ILO is 9.6mW at 250MHz, and 1.47mW at 4.8GHz. The phase noise is -108dBc/Hz at 1MHz offset. For a ten-times frequency multiplier, output phase noise is 10dB larger than the input phase noise below 10kHz offset, which is the theoretical limit.

Original languageEnglish
Title of host publication2007 IEEE Asian Solid-State Circuits Conference, A-SSCC
Pages336-339
Number of pages4
DOIs
Publication statusPublished - 2007 Dec 1
Externally publishedYes
Event2007 IEEE Asian Solid-State Circuits Conference, A-SSCC - Jeju, Korea, Republic of
Duration: 2007 Nov 122007 Nov 14

Publication series

Name2007 IEEE Asian Solid-State Circuits Conference, A-SSCC

Other

Other2007 IEEE Asian Solid-State Circuits Conference, A-SSCC
CountryKorea, Republic of
CityJeju
Period07/11/1207/11/14

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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    Takano, K., Motoyoshi, M., & Fujishima, M. (2007). 4.8GHz CMOS frequency multiplier with subharmonic pulse-injection locking. In 2007 IEEE Asian Solid-State Circuits Conference, A-SSCC (pp. 336-339). [4425699] (2007 IEEE Asian Solid-State Circuits Conference, A-SSCC). https://doi.org/10.1109/ASSCC.2007.4425699