US2194696A - Coupling means for ultra-short waves - Google Patents

Coupling means for ultra-short waves Download PDF

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Publication number
US2194696A
US2194696A US268880A US26888039A US2194696A US 2194696 A US2194696 A US 2194696A US 268880 A US268880 A US 268880A US 26888039 A US26888039 A US 26888039A US 2194696 A US2194696 A US 2194696A
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United States
Prior art keywords
coil
electrodes
coupling
ultra
pair
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Expired - Lifetime
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US268880A
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English (en)
Inventor
Eickemeyer Adolf
Behrens Alfred
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Telefunken AG
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Telefunken AG
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Publication date
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks
    • H03H7/383—Impedance-matching networks comprising distributed impedance elements together with lumped impedance elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/04—Coupling devices of the waveguide type with variable factor of coupling

Definitions

  • the present invention is concerned with a coupling means for ultra-short waves in which any desired transmitter or receiver stage is to be coupled in a variable way with another stage by the aid of a pivoted coil.
  • Connection of the oscillatable or pivotable coupler coil, which, for ultra-short-wave work consists simply of a wire loop, with the rest of the circuit organization has heretofore been effected by way of sliding springs or flexible strands or cables which permit mechanical movement of the coupling coil.
  • Mobile parts of this kind involve serious drawbacks since, on the one hand, where sliding contacts are dealt with, disturbing actions will invariably arise due to faulty contact-making, while, on the other hand, the working safety is diminished for the reason that the life of the moving parts is short where the parts are in constant use.
  • parts of the said nature, 20 for short-wave work means always an undesirable additional inductance and capacity.
  • the aim and object of the invention is to obviate all of these difliculties.
  • the pivoted coupling coil (wire loop) is capacitively coupled
  • Fig. 1a shows an arrangement as here disclosed in perspective.
  • Fig. lb shows the same arrangement in top view.
  • 4 denotes the coupler coil oscillable about the shaft 6.
  • the coupler coil is in the form of a wire loop, the latter to be coupled with a circuit whose terminals are indicated at l and 8.
  • This connec- "5 tion is established upon both sides of the coil by way of respective capacities, one of the electrodes which is indicated at 3 is fixedly connected with the coil or the wire loop so that the same will partake of the rotation when the coil or wire loop is revolved.
  • the other capacity electrode l is united with the terminals l and 8 of the consumer or load circuit.
  • the coupling capacities established between members I, 2 are used at the same time as tuning capacities of the circuit including the coil.
  • additional, preferably grounded, condenser coats or plates 2 are provided which are adapted to interleaveswith the coats I and 3 so that tuning is accomplishable by turning the other shaft 5.
  • the invention is not confined to the exemplified embodiment here shown. In fact, broadly speaking, it consists in using capacitive coupling of the oscillatable or revoluble coil in such a way that one capacity coat is fixedly united with the coil, while the other fixed coat is united with the rest of the circuit organization whenever sliding springs or the like can no longer be used in ultra-short-wave work because of difficulties due to contacts and of the stray (or additional) inductances.
  • the invention is applicable to any short-wave equipment at all such as, for instance, the power stage of short-wave receivers in which a variable antenna coupling of the input stage is required. Terminals I and 8 in this case are directly united with the antenna, whereas the oscillatable wire .loop 4 is coupled with the receiver tube.
  • the tuning of the receiver circuit is cfiected by the aid of the capacity surfaces 2 which are revoluble about the shaft 5.
  • vmeans for coupling said movable coil with the the rest of the circuit including a condenser electrode connected to said movable coil, a second condenser electrode adjacent to and in capacitive relationship with said first mentioned electrode, and a third electrode interposed between said first and second electrodes to vary the capacity therebetween.
  • an ultra-short wave coupling system comprising an oscillator circuit, a fixed coil, a movable coil in coupling relationship with said fixed coil, means for coupling said movable coil with the rest of the circuit including a pair of condenser electrodes, each electrode connected to an end of'said movable coil, a second pair of electrodes,
  • each electrode being adjacent to and in capacitive relationship with each one of said first mentioned electrodes, and a third pair of electrodes, each electrode being interposed between said first and second electrodes to vary the capacity therebetween.
  • an ultra-short wave coupling system comprising an oscillator circuit, a fixed coil, a movable coil in coupling relationship with said fixed coil, means for coupling said movable coil with the rest of the circuit including a pair of condenser electrodes, each electrode being directly connected to an end of said movable coil, a second pair of condenser electrodes, each electrode being adjacent to and in capacitive rela tionship with each one of said first mentioned electrodes and having connection means for connecting to said oscillator circuit, and a third pair of electrodes, each electrode being interposed between said first and second electrodes to vary the capacity therebetween.
  • an ultra-short-wave coupling system comprising an oscillator circuit, a fixed coil, a movable coil in coupling relationship with said fixed coil, means for coupling said movable coil with the rest of the circuit including a pair of condenser electrodes, each electrode connected to an end of said movable coil, the shape of said electrodes being such that the condenser capacity remains constant when said coil is moved, a second pair of condenser electrodes, each electrode being adjacent to and in capacitive relationship with said first mentioned electrodes, and a third pair of electrodes, each electrode being interposed between said first and second electrodes to vary the capacity therebetween.
  • an ultra-short wave coupling system comprising an oscillator circuit, a fixed coil, a movable coil in coupling relationship with said fixed coil, means for coupling said movable coil with the rest of the circuit including a shaft for said movable coil, a pair of condenser electrodes mounted on said shaft, each electrode connected to said movable coil, the shape of said electrodes being such that the capacity remains constant when said coil is moved by said shaft, 21, second pair of, electrodes, each electrode being adjacent to and in capacitive relationship with each one of said first mentioned electrodes, and a third pair of electrodes interposed between said first and second electrodes to vary the capacity therebetween.
  • an ultra-short wave coupling system comprising an oscillator circuit, a fixed coil, 21 movable coil in coupling relationship with said fixed coil, means for coupling said movable coil with the rest of the circuit including a shaft for said movable coil, a pair of condenser electrodes mounted on said shaft, each electrode connected to said movable coil, the shape of said electrodes being such that the capacity remains constant when said coil is moved by said shaft, a second pair of electrodes, each electrode being adjacent to and in capacitive relationship with each one of said first mentioned electrodes, and a third pair of, electrodes. and a shaft for rotating said third pair of electrodes, each of said third electrodes being interposed between said first and second electrodes to vary the capacity therebetween.

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  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
US268880A 1938-04-13 1939-04-20 Coupling means for ultra-short waves Expired - Lifetime US2194696A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE214302X 1938-04-13

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US2194696A true US2194696A (en) 1940-03-26

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US (1) US2194696A (enrdf_load_stackoverflow)
CH (1) CH214302A (enrdf_load_stackoverflow)
NL (1) NL56492C (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442373A (en) * 1944-11-21 1948-06-01 Thomas A Newkirk Variable inductance
US2467737A (en) * 1945-05-24 1949-04-19 Emerson Radio And Phonograph C Ultra high frequency antenna coupling coil assembly
US2485884A (en) * 1945-08-29 1949-10-25 Richard R Stoddart High-frequency receiving system having inductively coupled butterfly type circuits
US2490735A (en) * 1943-05-31 1949-12-06 Honeywell Regulator Co Control apparatus
US2491480A (en) * 1945-05-21 1949-12-20 Davis Thomas Mcl High-frequency tunable circuit
US2494502A (en) * 1944-06-26 1950-01-10 Ferris Instr Lab Electrical capacitance device
US2519009A (en) * 1948-03-31 1950-08-15 Super Electric Products Corp Condenser construction for use with transformers
US2540137A (en) * 1943-12-14 1951-02-06 Irving H Page Wide range tuning circuit
US2587667A (en) * 1945-06-14 1952-03-04 Toth Emerick Inductively coupled compensator
US2656517A (en) * 1948-08-17 1953-10-20 Westinghouse Electric Corp Radio frequency coupling apparatus
US2707271A (en) * 1947-01-15 1955-04-26 Itt Electrical coupling apparatus
US2755448A (en) * 1952-06-30 1956-07-17 Sarkes Tarzian Tuning unit
US2756393A (en) * 1952-10-03 1956-07-24 Philco Corp Constant bandwidth coupling system
US2829349A (en) * 1952-11-06 1958-04-01 I D E A Inc Electrical filter circuit construction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1065037B (de) * 1957-02-09 1959-09-10 Phil Nat Dr Med H C Dr Med H C Regelbarer induktiver Transformator fuer einen grossen Wellenlaengenbereich zur Kopplung von Doppelleitungen oder Doppelleitungsresonatoren mit Doppelleitungen, Hohlrohrleitungen, Doppelleitungsresonatoren oder Hohlraumresonatoren

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490735A (en) * 1943-05-31 1949-12-06 Honeywell Regulator Co Control apparatus
US2540137A (en) * 1943-12-14 1951-02-06 Irving H Page Wide range tuning circuit
US2494502A (en) * 1944-06-26 1950-01-10 Ferris Instr Lab Electrical capacitance device
US2442373A (en) * 1944-11-21 1948-06-01 Thomas A Newkirk Variable inductance
US2491480A (en) * 1945-05-21 1949-12-20 Davis Thomas Mcl High-frequency tunable circuit
US2467737A (en) * 1945-05-24 1949-04-19 Emerson Radio And Phonograph C Ultra high frequency antenna coupling coil assembly
US2587667A (en) * 1945-06-14 1952-03-04 Toth Emerick Inductively coupled compensator
US2485884A (en) * 1945-08-29 1949-10-25 Richard R Stoddart High-frequency receiving system having inductively coupled butterfly type circuits
US2707271A (en) * 1947-01-15 1955-04-26 Itt Electrical coupling apparatus
US2519009A (en) * 1948-03-31 1950-08-15 Super Electric Products Corp Condenser construction for use with transformers
US2656517A (en) * 1948-08-17 1953-10-20 Westinghouse Electric Corp Radio frequency coupling apparatus
US2755448A (en) * 1952-06-30 1956-07-17 Sarkes Tarzian Tuning unit
US2756393A (en) * 1952-10-03 1956-07-24 Philco Corp Constant bandwidth coupling system
US2829349A (en) * 1952-11-06 1958-04-01 I D E A Inc Electrical filter circuit construction

Also Published As

Publication number Publication date
NL56492C (enrdf_load_stackoverflow)
CH214302A (de) 1941-04-15

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