Series-cascaded absorptive notch-filters for 4G-LTE radios

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

This paper focuses on novel filtering architectures for LTE-band transmit and receive RF-filters. For the first time, it is demonstrated that advanced filtering components with low insertion loss (2.8-4.9 dB) and large attenuation stopbands (25-50 dB) can be created by series-cascaded absorptive bandstop filters with quality factors even as low as 12-45. Transmit and receive filter modules for LTE-band 1 duplex circuits are shown. Lumped-element absorptive bandstop filters with the highest reported Q of 43 at 2 GHz are presented. Tunability of the presented filter arc hitectures is also discussed.

Original languageEnglish
Title of host publicationRWS 2015 - Proceedings
Subtitle of host publication2015 IEEE Radio and Wireless Symposium, RWW 2015
PublisherIEEE Computer Society
Pages177-179
Number of pages3
EditionJune
ISBN (Electronic)9781479955053
DOIs
Publication statusPublished - 19 Jun 2015
Externally publishedYes
Event2015 IEEE Radio and Wireless Symposium, RWS 2015 - RWW 2015 - San Diego, United States
Duration: 25 Jan 201528 Jan 2015

Publication series

NameIEEE Radio and Wireless Symposium, RWS
NumberJune
Volume2015-June
ISSN (Print)2164-2958
ISSN (Electronic)2164-2974

Conference

Conference2015 IEEE Radio and Wireless Symposium, RWS 2015 - RWW 2015
Country/TerritoryUnited States
CitySan Diego
Period25/01/1528/01/15

Keywords

  • Absorptive
  • bandpass filter
  • bandstop filter
  • filter cascade
  • LTE-band
  • lumped-elements
  • tunable filter

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