EP0438807A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A dielectric resonator support system for a waveguide
Assignee: Raytheon Co
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Filing: 1990-12-28
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Granted: —
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Expires: 2010-12-28
Abstract
Abstract A system for supporting a dielectric resonator (12) in a circular waveguide (10). A dielectric resonator is held in its optimum position using support posts or rods (11). The support rods are made from a suitable dielectric material, and slip fitted in holes (14) provided at 90° intervals around the periphery of the dielectric resonator. The support rods are affixed to the waveguide, by gluing or being screwed in place. The support rods are slip fitted such that they are allowed to expand, due to temperature, without causing stress on the dielectric resonator, thus the dielectric resonator is held in position without being affixed to its supporting structure. This is an inexpensive and simple solution to a complex problem. The support system is self-centering and free from all stress. The support system utilizes a minimum amount of supporting material which permits realization of the best unloaded Q.
Inventors
- 👤 David S. Levinson
- 👤 Louis W. Hendrick
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 10:42
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/10; H01P1/00; H01P1/20; H01P1/207; H01P1/208; H01P1/2084
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
66 words
A waveguide resonator arrangement comprising: a waveguide; a dielectric resonator disposed within said waveguide and being substantially centered therewithin; and a plurality of dielectric support rods, said rods being affixed to said waveguide; said rods being disposed in cavities on surface of said dielectric resonator; whereby a dielectric resonator is supported in a waveguide by a plurality of support rods being affixed to only said waveguide.
Claim 2
Dependent Claim
16 words
The waveguide resonator arrangement of Claim 1 in which the dielectric resonator comprises a ceramic material.
Claim 3
Dependent Claim
22 words
The waveguide resonator arrangement of Claim 2 in which the dielectric resonator has disposed about its external surface a plurality of cavities.
Claim 4
Dependent Claim
16 words
The waveguide resonator arrangement of Claim 1 in which the support rods are a dielectric material.
Claim 5
Dependent Claim
14 words
The waveguide resonator arrangement of Claim 4 in which the support rods are Rexolite.
Claim 6
Dependent Claim
16 words
The waveguide resonator arrangement of Claim 1 in which the waveguide is any applicable geometric shape.
Claim 7
Dependent Claim
13 words
The waveguide resonator arrangement of Claim 6 in which the waveguide is circular.
Claim 8
Dependent Claim
17 words
The waveguide resonator arrangement of Claim 7 in which the waveguide is made of electrically conductive metal.
Claim 9
Dependent Claim
15 words
The waveguide resonator arrangement of Claim 8 in which the waveguide is made of aluminum.
Claim 10
Dependent Claim
25 words
The waveguide resonator arrangement of Claim 3 in which the support rods are disposed in the cavities on the external surface of the dielectric resonator.
Claim 11
Dependent Claim
17 words
The waveguide resonator arrangement of Claim 10 in which the support rods are affixed to the waveguide.
Claim 12
Dependent Claim
21 words
The waveguide resonator arrangement of Claim 11 in which the support rods are threaded in the exterior wall of the waveguide.
Claim 13
Dependent Claim
23 words
The waveguide resonator arrangement of Claim 1 in which the minimum number of support rods are incorporated as to insure optimum unloaded Q-factor.
Claim 14
Dependent Claim
26 words
The waveguide resonator arrangement of Claim 10 in which the support rods are sized as to allow for thermal expansion while enabling movement in the cavities.
Claim 15
Dependent Claim
68 words
A waveguide resonator arrangement comprising: a circular waveguide; a circular dielectric resonator disposed within the circular waveguide, the resonator having a plurality of cavities at evenly spaced intervals around the periphery thereof; and a plurality of dielectric support rods affixed to the waveguide and inserted into the cavities of the resonator and having a clearance such that the resonator is self-centering and is supported without being rigidly fixed.
Claim 16
Dependent Claim
12 words
The waveguide resonator arrangement of Claim 15 which comprises four support rods.
Claim 17
Dependent Claim
28 words
The waveguide resonator arrangement of Claim 16 wherein the support rods are disposed in the dielectric resonator and affixed to the circular waveguide at substantially ninety degree intervals.
Claim 18
Dependent Claim
65 words
A self-centering dielectric resonator arrangement for a circular waveguide comprising: a circular dielectric resonator having four axial cavities spaced at ninety degree intervals around the periphery thereof; and four dielectric posts affixed to the waveguide and inserted in the axial cavities of the dielectric resonator for support thereof and having a clearance such that the dielectric resonator is self-centering without being stressed or rigidly fixed.
Claim 19
Dependent Claim
89 words
A self-centering dielectric resonator arrangement for supporting a dielectric resonator inside a waveguide without being affixed to it, the arrangement comprising: a pill-shaped dielectric resonator having four openings disposed at substantially ninety degree intervals around the periphery thereof; and four dielectric posts inserted through the openings of the dielectric resonator, the relative size of the openings and the dielectric posts being adapted to cause the dielectric resonator to self-center in the waveguide and to be held securely in place without stress and without being rigidly affixed to the waveguide.
Claim 20
Dependent Claim
14 words
The self-centering dielectric resonator arrangement of Claim 19 wherein the posts comprise Rexolite material.
Claim 21
Dependent Claim
26 words
The self-centering dielectric resonator support arrangement of Claim 19 wherein the dielectric resonator is made of a ceramic material having a dielectric constant of about 35.
References Cited (Backward Citations)
No citation records indexed.
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