A 0.8-1.9GHz-band CMOS direct digital RF quadrature modulator

Noriharu Suematsu, Osamu Wada, Surugu Kameda, Tadashi Takagi, Kazuo Tsubouchi

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

Abstract

A 0.8-1.9 GHz direct digital radio frequency (RF) quadrature modulator is designed and fabricated in 90 nm CMOS process. The bit number and the CLK frequency of I/Q digital input signals are designed to satisfy the required EVM, ACPR/NACPR and system bandwidth for 0.9/1.9GHz W-CDMA terminals. The fabricated quadrature modulator performs EVM of less than -22.7dB, ACP/NACP of less than -36.1dBc and spurious free range of 197MHz (wider than the W-CDMA system bandwidth of 60MHz) with 8-bit, 100Msps I/Q digital input signals and the d.c. power consumption of 10mW.

Original languageEnglish
Title of host publication2015 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages148-150
Number of pages3
ISBN (Electronic)9781467377942
DOIs
Publication statusPublished - 2016 Jan 8
EventIEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2015 - Sendai, Japan
Duration: 2015 Aug 262015 Aug 28

Publication series

Name2015 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2015 - Proceedings

Other

OtherIEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2015
Country/TerritoryJapan
CitySendai
Period15/8/2615/8/28

Keywords

  • DAC CMOS
  • Digital RF
  • Direct conversion
  • Microwave
  • Modulator
  • RFIC

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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