Wang, Dongwei ; Polat, Ersin ; Tesmer, Henning ; Jakoby, Rolf ; Maune, Holger (2022)
Highly Miniaturized Continuously Tunable Phase Shifter Based on Liquid Crystal and Defected Ground Structures.
In: IEEE Microwave and Wireless Components Letters, 32 (6)
doi: 10.1109/LMWC.2022.3142410
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
This letter presents a highly miniaturized continuously tunable microstrip line phase shifter from 10 to 67 GHz. The design takes the advantage of the microstrip line topology by a ground plane with defected ground structures (DGSs). This leads to slow wave (SW) effect of the transmission line (TL), thus the TL can be physically compact, while maintaining its electric length. By applying tunable microwave liquid crystal (LC) with an anisotropic permittivity as dielectric, a delay line phase shifter is realized. The proposed microstrip LC phase shifter with DGS and a standard microstrip LC phase shifter as reference are both filled with 20-mm-thick high-performance LC GT3-23001. By comparison, the one with DGS exhibits a significant SW effect and an improved LC tuning efficiency which leads to a remarkable enhancement of figure of merit (FoM) and compactness than the reference. A second microstrip LC phase shifter utilizing DGS filled with 5-mm thick more advanced GT7-29001 LC shows outstanding FoM of 55°/dB, compactness of 201∘/λ0 , and response time of 210 ms.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Wang, Dongwei ; Polat, Ersin ; Tesmer, Henning ; Jakoby, Rolf ; Maune, Holger |
| Art des Eintrags: | Bibliographie |
| Titel: | Highly Miniaturized Continuously Tunable Phase Shifter Based on Liquid Crystal and Defected Ground Structures |
| Sprache: | Englisch |
| Publikationsjahr: | Juni 2022 |
| Verlag: | IEEE |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | IEEE Microwave and Wireless Components Letters |
| Jahrgang/Volume einer Zeitschrift: | 32 |
| (Heft-)Nummer: | 6 |
| DOI: | 10.1109/LMWC.2022.3142410 |
| Kurzbeschreibung (Abstract): | This letter presents a highly miniaturized continuously tunable microstrip line phase shifter from 10 to 67 GHz. The design takes the advantage of the microstrip line topology by a ground plane with defected ground structures (DGSs). This leads to slow wave (SW) effect of the transmission line (TL), thus the TL can be physically compact, while maintaining its electric length. By applying tunable microwave liquid crystal (LC) with an anisotropic permittivity as dielectric, a delay line phase shifter is realized. The proposed microstrip LC phase shifter with DGS and a standard microstrip LC phase shifter as reference are both filled with 20-mm-thick high-performance LC GT3-23001. By comparison, the one with DGS exhibits a significant SW effect and an improved LC tuning efficiency which leads to a remarkable enhancement of figure of merit (FoM) and compactness than the reference. A second microstrip LC phase shifter utilizing DGS filled with 5-mm thick more advanced GT7-29001 LC shows outstanding FoM of 55°/dB, compactness of 201∘/λ0 , and response time of 210 ms. |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Mikrowellentechnik und Photonik (IMP) > Mikrowellentechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Mikrowellentechnik und Photonik (IMP) |
| Hinterlegungsdatum: | 03 Feb 2022 13:52 |
| Letzte Änderung: | 22 Jul 2024 13:12 |
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