Liquid Crystal Based Dielectric Waveguide Phase Shifters for Phased Arrays at W-Band
In this work, the feasibility of microwave liquid crystal based dielectric waveguide phased shifters is investigated in a phased rod antenna array for the first time. For this, a 1×4 rod antenna array is designed including the phase shifters as well as a cascaded E-plane power divider net...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2019-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8825834/ |
| _version_ | 1818665143145332736 |
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| author | Roland Reese Ersin Polat Henning Tesmer Jonathan Strobl Christian Schuster Matthias Nickel Angel Blanco Granja Rolf Jakoby Holger Maune |
| author_facet | Roland Reese Ersin Polat Henning Tesmer Jonathan Strobl Christian Schuster Matthias Nickel Angel Blanco Granja Rolf Jakoby Holger Maune |
| author_sort | Roland Reese |
| collection | DOAJ |
| description | In this work, the feasibility of microwave liquid crystal based dielectric waveguide phased shifters is investigated in a phased rod antenna array for the first time. For this, a 1×4 rod antenna array is designed including the phase shifters as well as a cascaded E-plane power divider network. As core elements, the phase shifter are designed as continuously tunable subwavelength fibers, partially filled with a newly specifically synthesized microwave liquid crystal, exhibiting a maximum FoM 145°/dB at 102.5GHz. As proof-of-concept, a simplified electric biasing network is developed, demonstrating its beam steering capability by changing the scanning angle between 0°, -25° and +15° with three different voltage distributions. The antenna array is well matched throughout the complete W-band with a input reflection below -10 dB. The measured antenna gain is between 11.5 to 9.1 dBi at 85 GHz accompanied with a side lobe level between -12 to -7 dB, depending on the steering configuration. |
| first_indexed | 2024-12-17T05:43:57Z |
| format | Article |
| id | doaj.art-b67fc93260f04325b23dda2363fe73a3 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-17T05:43:57Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-b67fc93260f04325b23dda2363fe73a32022-12-21T22:01:22ZengIEEEIEEE Access2169-35362019-01-01712703212704110.1109/ACCESS.2019.29396488825834Liquid Crystal Based Dielectric Waveguide Phase Shifters for Phased Arrays at W-BandRoland Reese0https://orcid.org/0000-0002-2924-6800Ersin Polat1Henning Tesmer2Jonathan Strobl3Christian Schuster4https://orcid.org/0000-0002-1007-6602Matthias Nickel5https://orcid.org/0000-0003-2144-3444Angel Blanco Granja6Rolf Jakoby7Holger Maune8Institute for Microwave Engineering and Photonics, Technische Universität Darmstadt, Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, Darmstadt, GermanyInstitute for Microwave Engineering and Photonics, Technische Universität Darmstadt, Darmstadt, GermanyIn this work, the feasibility of microwave liquid crystal based dielectric waveguide phased shifters is investigated in a phased rod antenna array for the first time. For this, a 1×4 rod antenna array is designed including the phase shifters as well as a cascaded E-plane power divider network. As core elements, the phase shifter are designed as continuously tunable subwavelength fibers, partially filled with a newly specifically synthesized microwave liquid crystal, exhibiting a maximum FoM 145°/dB at 102.5GHz. As proof-of-concept, a simplified electric biasing network is developed, demonstrating its beam steering capability by changing the scanning angle between 0°, -25° and +15° with three different voltage distributions. The antenna array is well matched throughout the complete W-band with a input reflection below -10 dB. The measured antenna gain is between 11.5 to 9.1 dBi at 85 GHz accompanied with a side lobe level between -12 to -7 dB, depending on the steering configuration.https://ieeexplore.ieee.org/document/8825834/Phased arraymillimeter wave devicesmicrowave liquid crystaldielectric waveguide |
| spellingShingle | Roland Reese Ersin Polat Henning Tesmer Jonathan Strobl Christian Schuster Matthias Nickel Angel Blanco Granja Rolf Jakoby Holger Maune Liquid Crystal Based Dielectric Waveguide Phase Shifters for Phased Arrays at W-Band IEEE Access Phased array millimeter wave devices microwave liquid crystal dielectric waveguide |
| title | Liquid Crystal Based Dielectric Waveguide Phase Shifters for Phased Arrays at W-Band |
| title_full | Liquid Crystal Based Dielectric Waveguide Phase Shifters for Phased Arrays at W-Band |
| title_fullStr | Liquid Crystal Based Dielectric Waveguide Phase Shifters for Phased Arrays at W-Band |
| title_full_unstemmed | Liquid Crystal Based Dielectric Waveguide Phase Shifters for Phased Arrays at W-Band |
| title_short | Liquid Crystal Based Dielectric Waveguide Phase Shifters for Phased Arrays at W-Band |
| title_sort | liquid crystal based dielectric waveguide phase shifters for phased arrays at w band |
| topic | Phased array millimeter wave devices microwave liquid crystal dielectric waveguide |
| url | https://ieeexplore.ieee.org/document/8825834/ |
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