Tunable Liquid Crystal Filter in Nonradiative Dielectric Waveguide Technology at 60 GHz

• Published in: IEEE microwave and wireless components letters Vol. 29; no. 1; pp. 44 - 46
• Main Authors: Polat, Ersin, Reese, Roland, Jost, Matthias, Schuster, Christian, Nickel, Matthias, Jakoby, Rolf, Maune, Holger
• Format: Journal Article
• Language: English
• Published: IEEE 01.01.2019
• Subjects: Band-pass filters; Couplings; Dielectrics; Electrodes; Filter; Junctions; liquid crystal (LC); Microwave filters; millimeter wave; nonradiative dielectric (NRD) waveguide; Radio frequency; tunable circuits and devices

This letter presents a continuously tunable nonradiative dielectric waveguide three-pole bandpass filter based on liquid crystal (LC) technology at 60 GHz. LC is used as tunable material to obtain a continuous tunable center frequency. For the LC's orientation, an electrode network with parasit...