Miniaturized Liquid Crystal Slow Wave Phase Shifter Based on Nanowire Filled Membranes

Autor: Leonardo G. Gomes, Roland Reese, Gustavo P. Rehder, Matthias Jost, Matthias Nickel, Julio M. Pinheiro, Philippe Ferrari, Ariana L. C. Serrano, Holger Maune, Ersin Polat, Jay S. K. Gautam, Rolf Jakoby
Přispěvatelé: Institute for Microwave Engineering and Photonics, Laboratory of Microelectronics USP, Universidade de São Paulo (USP), LIA franco brésilien James Clerk Maxwell (CNRS-CNPq) (LIA817), Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation (IMEP-LAHC ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: IEEE Microwave and Wireless Components Letters
IEEE Microwave and Wireless Components Letters, Institute of Electrical and Electronics Engineers, 2018, 28 (8), pp.681-683. ⟨10.1109/LMWC.2018.2845938⟩
ISSN: 1531-1309
1558-1764
DOI: 10.1109/LMWC.2018.2845938⟩
Popis: International audience; This letter presents the realization of a miniaturized liquid crystal slow wave phase shifter at V -band. It is based on a microstrip topology, where the ground plane is realized by a porous alumina membrane filled with metallic nanowires, all of them being connected with each other by a metallic ground plane at the membrane's back. While the magnetic field can pass the nanowires almost unperturbed, the electric field is confined in between the signal electrode and the tips of the nanowires. After deembedding, the meander line phase shifter shows a matching always better than -10 dB, while exhibiting an insertion loss between 1.5 and 2.5 dB from 40 to 67 GHz. This results in a figure-of-merit for passive phase shifters of 33 dB to 45°/dB, accompanied with a phase shift of 55°-100°.
Databáze: OpenAIRE