Title :
Leakage phenomena in multilayered conductor-backed coplanar waveguides
Author :
Liu, Yaozhong ; Itoh, Tatsuo
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
Leakage phenomena possible in the multilayered conductor-backed CPWs are investigated using the spectral domain technique with a complex root searching procedure. The obtained phase and attenuation constants confirm that the leakage is due to the presence of parallel plate mode which is slower than dominant CPW mode. It is found that the leakage can be controlled by introducing an additional dielectric layer. Two different multilayered structures are given as examples.<>
Keywords :
dielectric waveguides; magnetic leakage; spectral analysis; waveguide theory; attenuation constants; complex root searching procedure; dielectric layer; dielectric waveguides; leakage phenomena; multilayered conductor-backed coplanar waveguides; parallel plate mode; phase constants; spectral domain technique; Attenuation; Conductors; Coplanar waveguides; Dielectric constant; Dielectric substrates; Frequency; Heat sinks; High-K gate dielectrics; Spectral analysis;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
