Large-Signal Performance Optimization of Inverted-F Antenna Tuned by Switchable RF Capacitor

Valentyn Solomko, Oguzhan Oezdamar, Robert Weigel, Amelie Hagelauer

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

Abstract

Harmonics emission by an aperture-tuned IFA (inverted-F antenna) is studied. The analytical analysis is conducted using a transmission-line model of the antenna. Based on the results of analysis, an optimization example for the large-signal performance of a carrier-aggregation front-end tuned by a high-voltage switchable RF capacitor is presented, the findings are supported by the measurements on a hardware demonstrator. According to the experimental results, the power of a second harmonic at 1800 MHz coupled from the main into diversity antenna is reduced by 10 dB by fine-selecting the position of the capacitor-based tuning network along the radiating element of the main antenna.

Original languageEnglish
Title of host publication2021 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages21-25
Number of pages5
ISBN (Electronic)9781665413886
DOIs
StatePublished - 9 Aug 2021
Externally publishedYes
Event10th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2021 - Honolulu, United States
Duration: 9 Aug 202113 Aug 2021

Publication series

Name2021 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2021

Conference

Conference10th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2021
Country/TerritoryUnited States
CityHonolulu
Period9/08/2113/08/21

Keywords

  • C-tuner
  • RF switch
  • antenna tuning
  • aperture tuning
  • carrier aggregation
  • cellular user equipment
  • harmonics
  • high-voltage RF switch
  • inverted-F antenna
  • switchable capacitor
  • user terminal

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