INVESTIGATION OF MICROWAVE DIELECTRIC-RESONATOR FILTERS

reportActive / Technical Report | Accession Number: AD0474147 | Open PDF

Abstract:

Waveguide band-stop filters using dielectric resonators are considered. Two basic orientations, transverse and axial, of a dielectric resonator in a TE10-mode rectangular waveguide are analyzed. Formulas for external Q are derived in both cases. The experimental response of a three resonator band-stop filter is shown to agree well with the theoretically anticipated performance. Various configurations of dielectric resonators in waveguide that yield directional filter performance are described. Pairs of resonators operating in their fundamental mode are used as well as a single resonator operating in its second mode of resonance. Formulas are derived for several cases. Measured resonant frequency curves are presented for the first three modes of a disk as a function of length-to-diameter ratio and favorable regions of LD yielding good mode separation are found for the cases of the first and second modes. Data showing the effect of metal-wall proximity on unloaded Q and resonant frequency are presented for an axially oriented dielectric disk in square and circular tubes below cut-off.

Author(s):
Cohn, Seymour B. ; Torgow, Eugene N.
Author Organization(s):
RANTEC CORP CALABASAS CA
Descriptive Note:
Quarterly rept. no. 7, 1 Mar-31 May 1965
Supplementary Note:
DOI: 10.21236/AD0474147
Annotation:
Microwave dielectric-resonator waveguide filters.
Pagination:
0055

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
DA-36-039-AMC-02267(E)
Task Number(s):
IP622001A05702
Project Number(s):
DA-IP6-22001-A-057
Monitor Series:
USAEL
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_5.5.2_Task; JCA_5.5_Direct
Communities of Interest:
Advanced Electronics
Descriptor(s):
*DIELECTRICS, *WAVEGUIDE FILTERS, WAVEGUIDES, MICROWAVE EQUIPMENT, RESONANT FREQUENCY, CONFIGURATIONS, RESONATORS, DISKS, EQUATIONS, BANDWIDTH, MICROWAVE FREQUENCY
Field(s)/Group(s):
Electrical and Electronic Equipment
Keyword(s):
BANDSTOP FILTERS
Report Date:
1965 Jul 28