Frequency Reconfigurable Multiband Handset Antenna Based on a Multichannel Transceiver

Jari Matti Hannula, Tapio Saarinen, Jari Holopainen, Ville Viikari

Research output: Contribution to journalArticleScientificpeer-review

24 Citations (Scopus)
196 Downloads (Pure)

Abstract

The upcoming standards of wireless communications result in additional and more stringent requirements for antennas in mobile phones. In this paper, we present a frequencyreconfigurable antenna that could potentially be suited for future mobile devices. Frequency reconfigurability is achieved through a cluster of mutually coupled antenna elements that are excited with frequency-dependent weights using a multichannel transceiver. We report a mobile handset antenna cluster measuring 15x15x1.6 mm3; that covers the frequency bands of 1.7-2.7, 3.3-4.5, and 5.475-6.425 GHz with an antenna efficiency better than 90 %. The operation of the antenna cluster is experimentally verified by feeding all the antenna elements with proper weights using tailor-made power splitters that represent a multichannel transceiver with adjustable amplitude and phase in each branch. The results obtained with the feed networks suggest the feasibility of the reconfigurability concept, and pave way for codesign of the antenna and the transceiver.

Original languageEnglish
Pages (from-to)4452-4460
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume65
Issue number9
Early online date10 Jul 2017
DOIs
Publication statusPublished - Sep 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • Antenna feeds
  • Antenna measurements
  • microwave circuits
  • Mobile antennas
  • mobile antennas
  • Mobile communication
  • multifrequency antennas
  • Transceivers
  • Tuning

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