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A 230-300 GHz Low-Loss Micromachined Waveguide Hybrid Coupler
FOI.
FOI.
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.ORCID iD: 0000-0001-5662-6748
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.ORCID iD: 0000-0002-8264-3231
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2017 (English)In: Proceedings of the 47th European Microwave Conference, Nuremberg, October 8-13, 2017, 2017Conference paper, Published paper (Refereed)
Abstract [en]

A silicon micromachined waveguide hybrid coupler for J-band (220-325 GHz) applications is presented. The coupling and phase shifting functions are realised using a 90° ridged waveguide phase shifter, a joint waveguide section and a port extension. The hybrid coupler is fabricated using a micromachined waveguide technology employing a double H-plane split that results in low losses. For the design band 230–300 GHz, initial VNA measurements indicate coupling coefficients of -3.2±0.4 dB, amplitude imbalance better than -0.5/+0.3 dB, phase imbalance better than -14°/+11° and an input reflection coefficient below -14 dB. To the best of our knowledge, this is the first time a low-loss micromachined hybrid coupler of this type is characterised within this frequency range.

Place, publisher, year, edition, pages
2017.
Keyword [en]
THz, micromachined waveguides, millimeter-wave, submillimeter-wave, coupler, hybrid coupler, waveguide
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-216956OAI: oai:DiVA.org:kth-216956DiVA, id: diva2:1152611
Conference
European Microwave Conference 2017
Projects
SSF Swedish Foundation for Strategic Research, Synergy Grant Electronics SEl3-007
Funder
Swedish Foundation for Strategic Research , SEl3-007
Note

QC 20171211

Available from: 2017-10-25 Created: 2017-10-25 Last updated: 2017-12-11Bibliographically approved

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CiteExportLink to record
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