Electrically tunable evanescent mode half-mode substrate-integrated- waveguide resonators

Electrically tunable evanescent mode half mode substrate integrated waveguide (HMSIW) resonators are implemented for S band applications. An HMSIW loaded with a complementary split ring resonator (CSRR) achieves forward electromagnetic wave transmission below the characteristic waveguide cutoff frequency due to evanescent wave amplification. A variable capacitor connected to one of the conductors of the CSRR changes its effective capacitance to ground, resulting in frequency tuning of the resonator. Three different configurations are investigated with a varactor diode connected between the ground and three different contact points of the CSRR. The external Q factor is slightly affected by the frequency tuning. More than 15% tunability is achieved around 3.4 GHz. Full wave structure simulation results are in good agreement with those of measurement. © 2006 IEEE.

• Fecha de publicación: 2012
• Institución: Universidad Tecnológica de Bolívar
• Repositorio: Repositorio Institucional UTB
• Idioma: eng
• OAI Identifier: oai:repositorio.utb.edu.co:20.500.12585/9101
• Acceso en línea: https://hdl.handle.net/20.500.12585/9101
• Palabra clave: Complementary split ring resonator (CSRR); Half mode substrate integrated waveguide (HMSIW); Tunable resonator; Varactor diode; Complementary split-ring resonator; Contact points; Effective capacitance; Electrically tunable; Evanescent mode; Evanescent wave amplification; External Q factor; Frequency-tuning; Full waves; Half-mode substrate integrated waveguides; S band applications; Tunabilities; Tunable resonators; Varactor diode; Varactor diodes; Variable capacitor; Waveguide resonators; Cutoff frequency; Microwave circuits; Optical resonators; Varactors; Variable frequency oscillators; Substrate integrated waveguides
• Rights: restrictedAccess
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/