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3D/inkjet-printed origami antennas for multi-direction RF harvesting

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

Details

Original languageEnglish
Title of host publication2015 IEEE MTT-S International Microwave Symposium, IMS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479982752
DOIs
Publication statusPublished - 24 Jul 2015
Publication typeA4 Article in a conference publication
EventIEEE MTT-S International Microwave Symposium, IMS 2015 - Phoenix, United States
Duration: 17 May 201522 May 2015

Conference

ConferenceIEEE MTT-S International Microwave Symposium, IMS 2015
CountryUnited States
CityPhoenix
Period17/05/1522/05/15

Abstract

A system design is presented for radio frequency (RF) energy harvesting on wireless sensor network (WSN) nodes, where all electronics reside inside a 3D structure and the antennas lie on the surfaces of it. Additive manufacturing techniques are used for the packaging and antenna fabrication: A 3D-printed cross-shaped structure is built that folds to a cuboid in an 'origami' fashion and retains its shape at room temperature. Inkjet printing is used to directly fabricate antennas on the surfaces of the 3D-printed plastic, enabling a fully additive manufacturing of the structure. Multiple antennas on the cube's surfaces can be used for RF energy harvesting of signals arriving from totally orthogonal directions, with the use of an appropriate harvester. The system modules (cube, antenna, harvester) are described and characterized, offering a proof-of-concept for the combination of fabrication techniques to build systems for demanding RF applications.

Keywords

  • 3D printing, additive manufacturing, inkjet printing, multiple antennas, RF energy harvesting