VCO design for low-power, high-efficiency transmitter applications

Shengxi Diao, Yunzhen Wang, Chengluan Wang, Fujiang Lin, Chun Huat Heng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this paper, we examine Voltage Controlled Oscillator (VCO) design techniques to be used in different transmitter applications. These transmitters, with their unique specifications such as fast oscillation start-up, fast locking or proper capacitor bank design, require different VCO design considerations. We first look at a fast on-off LC-VCO used to realize OOK IR-UWB transmitter. It is implemented in 0.18μm CMOS process and achieves 2Mbps at 236μW power consumption. Next, we examine injection locking LC-VCO employed to achieve efficient QPSK/O- QPSKB modulation. Through proper capacitor bank design, an EVM of 6.4% has been demonstrated at data rate of 50Mbps with the low reported energy efficiency of 118pJ/bit. The area consumption is only 0.28mm2 in 0.18μm CMOS process.

Original languageEnglish
Title of host publicationRFIT 2014 - 2014 IEEE International Symposium on Radio-Frequency Integration Technology
Subtitle of host publicationSilicon Technology Heats Up for THz
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479955039
DOIs
StatePublished - 21 Oct 2014
Externally publishedYes
Event2014 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2014 - Hefei, China
Duration: 27 Aug 201430 Aug 2014

Publication series

NameRFIT 2014 - 2014 IEEE International Symposium on Radio-Frequency Integration Technology: Silicon Technology Heats Up for THz

Conference

Conference2014 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2014
Country/TerritoryChina
CityHefei
Period27/08/1430/08/14

Keywords

  • Injection-Locking
  • Low-Power UWB
  • Transmitter
  • VCO Design
  • Zigbee

Fingerprint

Dive into the research topics of 'VCO design for low-power, high-efficiency transmitter applications'. Together they form a unique fingerprint.

Cite this