Nonhomogeneities in microwave dielectric structures

In this paper, the problem of frequency control in a dielectric resonant device by inserting a nonhomogeneous resonator with controlled parameters. This insert distorts electromagnetic field inside the dielectric resonator. Modifying the insert properties controls resonant performance of the whole s...

Full description

Saved in:
Bibliographic Details
Main Authors: Molchanov, V.I., Tatarchuk, D.D.
Format: Conference Proceeding
Language:English
Subjects:
Control systems
Dielectric devices
Electromagnetic fields
Frequency control
Microwave devices
Mirrors
Q factor
Resonance
Resonant frequency
Tuning
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, the problem of frequency control in a dielectric resonant device by inserting a nonhomogeneous resonator with controlled parameters. This insert distorts electromagnetic field inside the dielectric resonator. Modifying the insert properties controls resonant performance of the whole system. Existing methods of the DR resonant frequency mechanical tuning are characterised by low operating range, while known electronic methods of adjustment considerably compromise the Q-factor. In this work a new method of the DR resonant frequency control is proposed using composite resonant designs: a resonant system is built on two dielectrics or uses a dielectric with metallic mirror. The suggested designs were analysed theoretically to calculate their principal parameters and choose the best components and materials. Electrodynamic calculations have been verified by experiments.
DOI:10.1109/CRMICO.2003.158927