Title :
Tunable dual-frequency immittance inverters on dual-composite right/left-handed transmission line
Author :
Dmitry Kholodnyak;Evgenia Zameshaeva;Viacheslav Turgaliev;Evgenii Vorobev
Author_Institution :
Microwave Microelectronics Laboratory, Department of Microelectronics & Radio Engineering, St. Petersburg Electrotechnical University ?LETI?, 5 Prof. Popov str., 197376, Russia
Abstract :
Advanced lumped-element immittance inverters supporting dual-frequency operation and tunability of operational frequencies are the key enablers to design small-size tunable dual-bandpass filters. The paper presents a design concept of tunable dual-frequency immittance inverters based on the dual-composite right/left-handed transmission line (D-CRLH TL) unit cells with variable capacitors. Tunability of such an immittance inverter is limited by a tolerable variation of the inverter parameter which changes when tuning the operational frequencies. At least ±10% tuning of the both operational frequencies is shown feasible theoretically and experimentally.
Keywords :
"Inverters","Resonator filters","Resonant frequency","Power transmission lines","Band-pass filters","Microwave filters","Dual band"
Conference_Titel :
Microwave and Optoelectronics Conference (IMOC), 2015 SBMO/IEEE MTT-S International
DOI :
10.1109/IMOC.2015.7369138
