Microwave liquid crystal technology

H Maune, M Jost, R Reese, E Polat, M Nickel, R Jakoby - Crystals, 2018 - mdpi.com
Tunable Liquid Crystal (LC)-based microwave components are of increasing interest in
academia and industry. Based on these components, numerous applications can be …

A photogenerated silicon plasma waveguide switch and variable attenuator for millimeter-wave applications

TR Jones, A Fisher, DW Barlage… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This article reports the design, fabrication, and measurement of a millimeter-wave (mm-
wave) solid-state-match waveguide switch using bulk silicon micromachining. A …

Liquid crystal phase shifter based on nonradiative dielectric waveguide topology at W-band

E Polat, R Reese, M Jost, M Nickel… - 2019 IEEE MTT-S …, 2019 - ieeexplore.ieee.org
This paper presents a continuously tunable nonradiative dielectric waveguide (NRD) phase
shifter based on liquid crystal (LC) technology at W-band. LC is inserted in the NRD's …

Design of a continuously tunable W-band phase shifter in dielectric waveguide topology

R Reese, M Jost, H Maune… - 2017 IEEE MTT-S …, 2017 - ieeexplore.ieee.org
This work presents a liquid crystal (LC) based phase shifter in a dielectric waveguide (DW)
topology consisting of core and cladding for the W-band. For continuous tunability, a part of …

V‐band bandpass filter with continuously variable centre frequency

D Psychogiou, D Peroulis, Y Li… - … Microwaves, Antennas & …, 2013 - Wiley Online Library
A second‐order bandpass filter (BPF) with continuously variable centre frequency tuning is
presented in this article. Evanescent‐mode cavity resonators with variable capacitive …

Tunable dielectric delay line phase shifter based on liquid crystal technology for a SPDT in a radiometer calibration scheme at 100 GHz

M Jost, R Reese, C Weickhmann… - 2016 IEEE MTT-S …, 2016 - ieeexplore.ieee.org
This paper presents for the first time, an electrically tunable dielectric line based on fiber
topology. A fiber segment is filled with liquid crystal (LC) for continuous tuning of the …

Large stroke staggered vertical comb-drive actuator for the application of a millimeter-wave tunable phase shifter

Y Li, D Psychogiou, S Kühne… - Journal of …, 2013 - ieeexplore.ieee.org
This paper presents the design, fabrication, and characterization of a MEMS actuator with
large static deflection as a waveguide-mounted variable millimeter-wave phase shifter. The …

[图书][B] Liquid crystal mixed beam-switching and beam-steering network in hybrid metallic and dielectric waveguide technology

M Jost - 2018 - tuprints.ulb.tu-darmstadt.de
Future communication systems at W-band are demanding highly directive antenna systems
with beam-steering capability. For the hardware implementation of analogue beam-steering …

Influence of squeeze film damping on the higher-order modes of clamped–clamped microbeams

N Alcheikh, L Kosuru, N Jaber… - Journal of …, 2016 - iopscience.iop.org
This paper presents an experimental study and a finite-element analysis of the effect of
squeeze film damping on the resonance frequency and quality factor of the higher-order …

Millimeter wave antenna with frequency selective surface (FSS) for 79 GHz automotive radar applications

B Aqlan, H Vettikalladi, MAS Alkanhal - International Journal of …, 2017 - cambridge.org
In this paper a high gain aperture-coupled membrane antenna with a frequency selective
surface (FSS) on a superstrate layer has been investigated. The base membrane antenna …