Title :
Temperature dependence of composite microwave cavities
Author :
Kajfez, Darko ; Chebolu, Siva ; Kishk, Ahmed A. ; Abdul-Gaffoor, Mohammed R.
Author_Institution :
Dept. of Electr. Eng., Mississippi Univ., MS, USA
fDate :
1/1/2001 12:00:00 AM
Abstract :
Composite microwave resonant cavities contain several regions of different dielectric materials. The variation of the resonant frequency with temperature is described in terms of a linear model. One part of the frequency variation is caused by the physical expansion of material parts, and the other by the change in the relative dielectric constant. The frequency sensitivity coefficients for both types of variation are obtained with the use of a computer code for numerical analysis of the electromagnetic field inside bodies of revolution
Keywords :
cavity resonators; electromagnetic fields; modelling; numerical analysis; permittivity; sensitivity analysis; thermal analysis; composite microwave cavities; dielectric materials; electromagnetic field; frequency sensitivity coefficients; internal EM field; linear model; microwave resonant cavities; numerical analysis; physical expansion; relative dielectric constant variation; resonant frequency variation; temperature dependence; Conductors; Dielectric constant; Dielectric losses; Dielectric materials; Electromagnetic fields; Numerical analysis; Resonance; Resonant frequency; Temperature dependence; Temperature sensors;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
