A SAW-less LTE transmitter with high-linearity modulator using BPF-based I/Q summing

Takahiro Nakamura, Naoki Kitazawa, Kaoru Kohira, Hiroki Ishikuro

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

3 Citations (Scopus)

Abstract

A SAW-filter-less LTE transmitter based on 65-nm CMOS technology, incorporating a passive quadrature modulator (QMOD) with band-pass-filter (BPF) I/Q summing technique, was developed. The passive operation and the BPF I/Q summing technique, respectively, contribute to low noise performance and high input impedance seen from baseband signal, resulting in low receiver-band noise and high linearity of the transmitter. A transmitter using the QMOD exhibits both inspecification receiver-band noise (<-156 dBc/Hz) and high output 3rd intercept point (OIP3 = 20.6 dBm).

Original languageEnglish
Title of host publicationESSCIRC 2014 - Proceedings of the 40th European Solid-State Circuit Conference
EditorsGaudenzio Meneghesso, Pietro Andreani, Andrea Bevilacqua
PublisherIEEE Computer Society
Pages387-390
Number of pages4
ISBN (Electronic)9781479956944
DOIs
Publication statusPublished - 2014 Oct 31
Event40th European Solid-State Circuit Conference, ESSCIRC 2014 - Venezia Lido, Italy
Duration: 2014 Sep 222014 Sep 26

Publication series

NameEuropean Solid-State Circuits Conference
ISSN (Print)1930-8833

Other

Other40th European Solid-State Circuit Conference, ESSCIRC 2014
Country/TerritoryItaly
CityVenezia Lido
Period14/9/2214/9/26

Keywords

  • LTE
  • SAW less transmitter
  • high-pass filter
  • linearity
  • quadrature modulator

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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