US3657671A — Hybrid tunable cavity resonator

Claim 1

Independent Claim 101 words

A cavity resonator comprising in combination; a cavity; a centerline structure conductively connecting the two end walls of said cavity; said centerline structure comprising a plurality of lapped electrical conductors, some electrically connected at only one end thereof to one end wall of said cavity and others electrically connected at only one end thereof to the other end wall of said cavity; means for spacing said conductors from each other to distribute the capacitance thereinbetween along substantially the entire length of said centerline structure; and tuning means for varying the spacing between all of said conductors to alter the distributed capacitance.

Claim 2

Dependent Claim 101 words

A cavity resonator comprising in combination; a cavity; a centerline structure conductively connecting the two end walls of said cavity; said centerline structure comprising a plurality of lapped electrical conductors, some electrically connected at only one end thereof to one end wall of said cavity and others electrically connected at only one end thereof to the other end wall of said cavity; means for spacing said conductors from each other to distribute the capacitance thereinbetween along substantially the entire length of said centerline structure; and tuning means for varying the spacing between all of said conductors to alter the distributed capacitance.

Claim 3

Dependent Claim 104 words

A hybrid coaxial reentrant cavity comprising in combination; an inner member conductively connected at one end of the cavity and extending towards but short of the other end of the cavity; a reentrant portion including a pair of generally parallel flexible flat conductors connected to the other end of the cavity and protruding into the space within the cavity, the separation of said pair from the inner member determining the distributed capacitance of the cavity; and means operably ganging together said pair of flexible members for altering the separation between the inner member and said pair of flexible members to vary the distributed capacitance.

Claim 4

Dependent Claim 104 words

A hybrid coaxial reentrant cavity comprising in combination; an inner member conductively connected at one end of the cavity and extending towards but short of the other end of the cavity; a reentrant portion including a pair of generally parallel flexible flat conductors connected to the other end of the cavity and protruding into the space within the cavity, the separation of said pair from the inner member determining the distributed capacitance of the cavity; and means operably ganging together said pair of flexible members for altering the separation between the inner member and said pair of flexible members to vary the distributed capacitance.

Claim 5

Dependent Claim 96 words

In a hybrid coaxial reentrant cavity for a tunable cavity resonator, the combination comprising; a quasi-parallel set of elongated conductors each connected at one end only to one end of said cavity and extending into said cavity as a reentrant portion; an inner conductor connected at one end only to the opposite end of said cavity and extending generally parallel with said quasi-parallel set of conductors; and means operably ganging together said quasi-parallel set of conductors for varying the spacing between said inner conductor and said quasi-parallel set of conductors to alter the distributed capacitance thereinbetween.

Claim 6

Dependent Claim 96 words

In a hybrid coaxial reentrant cavity for a tunable cavity resonator, the combination comprising; a quasi-parallel set of elongated conductors each connected at one end only to one end of said cavity and extending into said cavity as a reentrant portion; an inner conductor connected at one end only to the opposite end of said cavity and extending generally parallel with said quasi-parallel set of conductors; and means operably ganging together said quasi-parallel set of conductors for varying the spacing between said inner conductor and said quasi-parallel set of conductors to alter the distributed capacitance thereinbetween.

Claim 7

Dependent Claim 97 words

A cavity resonator comprising in combination; a cavity; a centerline structUre conductively connecting the two end walls of said cavity; said centerline structure comprising a plurality of lapped, generally flat electrical conductors disposed in a spaced stacked face-to-face relationship to each other, some electrically connected at only one end thereof to one end wall of said cavity and others electrically connected at only one end thereof to the other end wall of said cavity; and means for spacing said conductors from each other to distribute the capacitance thereinbetween along substantially the entire length of said centerline structure.

Claim 8

Dependent Claim 97 words

A cavity resonator comprising in combination; a cavity; a centerline structUre conductively connecting the two end walls of said cavity; said centerline structure comprising a plurality of lapped, generally flat electrical conductors disposed in a spaced stacked face-to-face relationship to each other, some electrically connected at only one end thereof to one end wall of said cavity and others electrically connected at only one end thereof to the other end wall of said cavity; and means for spacing said conductors from each other to distribute the capacitance thereinbetween along substantially the entire length of said centerline structure.

Claim 9

Dependent Claim 43 words

The combination of claim 4 wherein, said plurality of conductors includes a first elongated flat conductor cantilever mounted at one end wall of said cavity and at least one other elongated flat conductor cantilever mounted at the other end wall of said cavity.

Claim 10

Dependent Claim 39 words

The combination of claim 5 wherein, said tuning means comprises a spacing member slidably mounted on said first cantilever conductor to control the divergence of said at least one other elongated flat cantilever conductor from said first cantilever conductor.

Claim 11

Dependent Claim 56 words

The combination of claim 5 wherein, the free end of each cantilever mounted conductor is held in a substantially fixed separation from the other conductors; and the tuning means combination includes means for bowing the outer conductors to vary the separation of the conductors, whereby the distributed capacitance thereinbetween may be altered to tune said cavity.

Claim 12

Dependent Claim 32 words

The combination of claim 5 including means for captivating the end of each conductor opposite its respective cantilever mounted end to limit the diversion of those ends from said cantilever mounted ends.

Claim 13

Dependent Claim 28 words

The combination of claim 8 wherein said captivating means are dielectric supports capable of sliding along the face of the conductors as said conductors are flexed when separated.

Claim 14

Dependent Claim 46 words

The combination of claim 5 wherein two other elongated flat conductors are cantilever mounted at the opposite end wall of said cavity; said two conductors disposed on opposite sides of said first conductor in a face-to-face relationship overlapping at least a portion of said first conductor.

Claim 15

Dependent Claim 22 words

The combination of claim 10 wherein said two elongated flat conductors overlap substantially all of the face presented by said first conductor.

Claim 16

Dependent Claim 39 words

The combination of claim 11 wherein, said tuning means for varying said spacing comprises crank means including a stem extending into said cavity; said stem having opposite orientated lever means for separating the outer conductors from the center conductor.

Claim 17

Dependent Claim 102 words

A resonant cavity comprising, in combination; a first elongated conductor end mounted to one end wall within the cavity and extending towards but short of the opposite wall of the cavity; two flexible elongated conductors each end mounted to the other end wall and extending towards but short of said one end wall; said first elongated conductor disposed between said two flexible conductors, all of said elongated conductors being generally flat and disposed in spaced face-to-face relationship; and means for varying the separation of said two flexible conductors to alter the distributed capacitance between said first elongated conductor and said flexible conductors.

Claim 18

Dependent Claim 102 words

A resonant cavity comprising, in combination; a first elongated conductor end mounted to one end wall within the cavity and extending towards but short of the opposite wall of the cavity; two flexible elongated conductors each end mounted to the other end wall and extending towards but short of said one end wall; said first elongated conductor disposed between said two flexible conductors, all of said elongated conductors being generally flat and disposed in spaced face-to-face relationship; and means for varying the separation of said two flexible conductors to alter the distributed capacitance between said first elongated conductor and said flexible conductors.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1975-04-18	1975-10-18	1976-04-18	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1979-04-18	1979-10-18	1980-04-18	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1983-04-18	1983-10-18	1984-04-18	$7700.00	Window Closed / Lapsed

Hybrid tunable cavity resonator

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