Design of a passive feed network to increase the transmit efficiency of dipoles at 7 Tesla

Irena Zivkovic, Thomas O'Reilly, Wyger M. Brink, Andrew Webb

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

Abstract

In this abstract, we presented a new way of feeding a dipole type antenna which increases the transmit efficiency (B1+ per square root maximum SAR). The main radiating antenna element was printed on one side of a dielectric substrate with capacitive coupling to a shorter straight dipole element used as the feed element printed on the opposite side. Indirectly (passively) and directly fed (conventional) meander antennas were fabricated and their performances were compared numerically and experimentally. The indirectly fed dipole antenna exhibited increase in transmit efficiency for straight and meandered dipoles.
Original languageEnglish
Title of host publicationJoint Annual Meeting ISMRM-ESMRMB 2018
Place of PublicationParis, France
Publication statusPublished - 2018
Externally publishedYes
EventJoint Annual Meeting ISMRM-ESMRMB 2018 - Paris, France
Duration: 16 Jun 201821 Jun 2018

Conference

ConferenceJoint Annual Meeting ISMRM-ESMRMB 2018
Country/TerritoryFrance
CityParis
Period16/06/1821/06/18

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