Tunable Wave Propagation in Superconducting Microstrip Line Based on Ferroelectric Thin Films
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- Mathew, S., R, A. & Mathew, V. J Supercond Nov Magn (2013) 26: 565. doi:10.1007/s10948-012-1794-8
The microwave propagation characteristics in superconducting microstrip line supported by ferroelectric layer are theoretically investigated. The control of propagation constant and attenuation coefficient of the waveguide with biasing electric field is analyzed using the spectral domain method. The dependence of propagation characteristics on thickness of ferroelectric thin film as well as operating frequency for different applied electric fields is studied. The variation of propagation constant with temperature is also investigated. This method of analysis can be easily implemented in the design of tunable microwave devices.