Wireless passive sensing application using a cavity loaded evanescent mode half mode substrate integrated waveguide resonator
Fecha
2011Registro en:
2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11; pp. 2014-2017
9781457701573
10.1109/TRANSDUCERS.2011.5969205
Universidad Tecnológica de Bolívar
Repositorio UTB
36698427600
37101227200
36698143800
56021218700
57211616189
57207231431
Autor
Senior D.E.
Cheng X.
Jao, P.F.
Kim C.
Kim J.K.
Yoon, Y.K.
Resumen
In this work, an evanescent mode half mode substrate integrated waveguide (HMSIW) resonator is designed for a wireless passive sensing application at 5 GHz. The wireless pressure sensor has been implemented by placing a small Polydimethylsiloxane (PDMS) cavity, covered with a metal coated membrane, on top of the original resonator or by using a cavity ground plane. When the metal coated membrane is deformed or deflected by an external pressure, it perturbs the electric field of a complementary split ring resonator (CSRR) patterned on top of the HMSIW, producing a shift in the resonance frequency. Because it operates in a microwave frequency spectrum, it offers a high pressure-frequency sensitivity. Resonance frequency as a function of an applied pressure has been presented. Also, a broadband antenna has been integrated to perform wireless interrogation of the sensor. © 2011 IEEE.