Wang, Dongwei ; Polat, Ersin ; Tesmer, Henning ; Jakoby, Rolf ; Maune, Holger (2021)
A Compact and Fast 1 × 4 Continuously Steerable Endfire Phased-Array Antenna Based on Liquid Crystal.
In: IEEE Antennas and Wireless Propagation Letters, 20 (10)
doi: 10.1109/LAWP.2021.3096035
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
This letter presents a planar endfire Yagi-Uda antenna phased array fed by a corporate network. The phase of each radiating element is controlled by a loaded line phase shifter based on liquid crystal technology. The phase shifters are meandered to minimize the dimension of the array and are measured to provide maximum differential phase shift of 400\circ with a figure-of-merit of 54\circ \rm dB⁻¹ at 28.4 GHz. Each phase shifter is tuned individually by applying bias voltage through high impedance chromium line together with dc blocks. The array is designed for full-range scanning in E-plane with >\!360\circ phase shifters. Measurements show that it can be steered from −40\circ to 40\circ by applying dc bias in the range of 0–5 V and from −50\circ to 60\circ with degraded patterns. The maximum gain of the phased array antennas is measured to be 4.5 dBi. The array beam is able to be fast steered within approximately 1 s.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Wang, Dongwei ; Polat, Ersin ; Tesmer, Henning ; Jakoby, Rolf ; Maune, Holger |
| Art des Eintrags: | Bibliographie |
| Titel: | A Compact and Fast 1 × 4 Continuously Steerable Endfire Phased-Array Antenna Based on Liquid Crystal |
| Sprache: | Englisch |
| Publikationsjahr: | 9 Juli 2021 |
| Verlag: | IEEE |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | IEEE Antennas and Wireless Propagation Letters |
| Jahrgang/Volume einer Zeitschrift: | 20 |
| (Heft-)Nummer: | 10 |
| DOI: | 10.1109/LAWP.2021.3096035 |
| Kurzbeschreibung (Abstract): | This letter presents a planar endfire Yagi-Uda antenna phased array fed by a corporate network. The phase of each radiating element is controlled by a loaded line phase shifter based on liquid crystal technology. The phase shifters are meandered to minimize the dimension of the array and are measured to provide maximum differential phase shift of 400\circ with a figure-of-merit of 54\circ \rm dB⁻¹ at 28.4 GHz. Each phase shifter is tuned individually by applying bias voltage through high impedance chromium line together with dc blocks. The array is designed for full-range scanning in E-plane with >\!360\circ phase shifters. Measurements show that it can be steered from −40\circ to 40\circ by applying dc bias in the range of 0–5 V and from −50\circ to 60\circ with degraded patterns. The maximum gain of the phased array antennas is measured to be 4.5 dBi. The array beam is able to be fast steered within approximately 1 s. |
| Freie Schlagworte: | Phase shifters;Phased arrays;Antenna arrays;Antenna measurements;Gain;Voltage measurement;Standards;Beam steering;liquid crystal (LC);loaded line;planar array;printed circuits |
| 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: | 01 Nov 2021 10:52 |
| Letzte Änderung: | 01 Nov 2021 10:52 |
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