US2292880A - Tuned oscillatory circuit - Google Patents

Tuned oscillatory circuit Download PDF

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Publication number
US2292880A
US2292880A US393860A US39386041A US2292880A US 2292880 A US2292880 A US 2292880A US 393860 A US393860 A US 393860A US 39386041 A US39386041 A US 39386041A US 2292880 A US2292880 A US 2292880A
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US
United States
Prior art keywords
disc
oscillatory circuit
circuit
parts
tuned
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US393860A
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English (en)
Inventor
Koch Siegfried
Schmidt Alfred
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefunken AG
Original Assignee
Telefunken AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefunken AG filed Critical Telefunken AG
Application granted granted Critical
Publication of US2292880A publication Critical patent/US2292880A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/04—Coaxial resonators

Definitions

  • the invention relates to high frequency tuned oscillatory circuits comprising a casing and a condensor therein having a divided stator and a rotor supported by the cover and the bottom of the casing. With such oscillatory circuits it 1snecessary to change the rotor as soon as a fre' quency range between certain limits is attained.
  • the new oscillatory Insidethe casing I near the bottom 3 a circular disc 8 isarranged in sucha way as to embrace the stator ofthe condenser or the inner tubular conductor of the oscillatory circuit.
  • the disc is provided with a central opening.
  • the disc 8 may be movedl longitudinallyalong the axis of the oscillatory circuit or may be displaced in any other suitable way.
  • the disc is manufactured of ytwo parts hinged together by a ⁇ pivot 9 in -order'to allow the ,parts to be ti1ted.
  • the pivot 9 is supported by means of an insulated sleeve II arranged in a cap fastened to the wall ofthe casing I.
  • the toothed ends I0 of the ring-shaped circuit is constructed in such a way that the Y mean wavelength and the extension of the range may be adjusted as far independentlyv from one another as possible by varying the in- ⁇ .be adjusted over against one another.
  • Fig. 1 is a cross section through the new oscillatory circuit
  • Fig. 2 is a longitudinal section.
  • the oscillatory circuit comprises al cylindrical casing I of metal having the coverA 2 and a bottom 3. Bearings, not shown, are arranged in the Acentre of the bottom and the cover to support a y shaft E for the rotor t cooperating with thestator comprising two parts, one of which is suitably part with the bottom 3. Both parts are divided by the interstice 'i o ditierent breadth as shown 2 and the other disc s are provided with studs I2 and I3 respectively mounted in a bearing I4 arranged opposite the sleeve II in an aperture of the wall of thel casing I and carried by a bridgepiece I6.
  • Said bridge may be fastened to the casing by the intermediary of screw bolts I8 by which avremovable cap Il is mounted covering the aperture.
  • the stud I3 is prolongated over the bridge and is provided with a slot for the insertion of a tool to adjust the position of the stud I3 the other end of which is keyed to the plate 8.
  • the bearing is isprovided with a clamping means for the purpose of locking the stud in the position. adjusted by means of a screw I5.
  • the cap I'i is to be removed and the stud I3 is rotated in such a way as to tilt the parts of the disc to vary its effect on the oscillatory circuit.
  • the adjusted position of the disc 8 can be xed by the clamping screw I5.
  • a high frequency tuned oscillatory circuit comprising an outer conductor and an innerl tubular conductor composed of two spaced elements to form a condenser, a
  • a high frequency tuned oscillatory circuit comprising an outer conductor and an inner con ductor composed of two spaced coaxial elements
  • a high frequency tuned oscillatory circuit comprising an outer and an inner conductor, a.
  • a high frequency tuned oscillatory circuit comprising an ⁇ outer and an inner conductor, a condenser the statorvof which is formed by the inner conductor, a bottom and a cover connecting the ends of said conductors, and a ring? shaped disc placed near the bottom surrounding the, inner conductor and consisting' oi two halves hinged together by means of a pivot supported by the outer conductor, and gearing means for tilting the said halves about their common axis of separation and for ilxing same in the position given.
  • a high frequency tuned oscillator circuit comprising an outer conductor and an inner coaxial conductor, said inner conductor comprising two hollow spaced elements placed end to end on the same straight line, a rotatable element in the interiors of said two hollow spaced elements and capacitively coupled thereto to form a capacitor therewith, a disc located in the interior of 4said tuned circuit near the maximum current-minimum voltage end and having its center lying on the common axis of said outer and inner conductors, said disc being formed o! two pivotally arranged parts, and means for changing the angular position of said parts of said disc relative to each other for bringing them into the zone of maximum voltage.
  • An oscillatory system comprising a shield, an adjustable capacity disposed within said shield and connected to said shieldl by means of inductances in the :form of rods, said shield, inductances and capacity .forming a resonant tank circuit, and tuning means for said resonant tank circuit including two pivotally arranged parts angularlv movable relative to each other and located between said shield and adjustable capacity, said. pivotally arranged parts being mounted on one of said rods at a position of large current ow over said one rod.

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US393860A 1940-03-15 1941-05-17 Tuned oscillatory circuit Expired - Lifetime US2292880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE217642X 1940-03-15

Publications (1)

Publication Number Publication Date
US2292880A true US2292880A (en) 1942-08-11

Family

ID=5830871

Family Applications (1)

Application Number Title Priority Date Filing Date
US393860A Expired - Lifetime US2292880A (en) 1940-03-15 1941-05-17 Tuned oscillatory circuit

Country Status (3)

Country Link
US (1) US2292880A (ru)
CH (1) CH217642A (ru)
NL (1) NL56932C (ru)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543042A (en) * 1945-05-07 1951-02-27 Standard Telephones Cables Ltd Tuning means for coaxial line conductors
US2561398A (en) * 1945-04-23 1951-07-24 Standard Telephones Cables Ltd Coaxial line circuits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2561398A (en) * 1945-04-23 1951-07-24 Standard Telephones Cables Ltd Coaxial line circuits
US2543042A (en) * 1945-05-07 1951-02-27 Standard Telephones Cables Ltd Tuning means for coaxial line conductors

Also Published As

Publication number Publication date
CH217642A (de) 1941-10-31
NL56932C (ru)

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