GB1116117A - A tuning arrangement - Google Patents

A tuning arrangement

Info

Publication number
GB1116117A
GB1116117A GB4311866A GB4311866A GB1116117A GB 1116117 A GB1116117 A GB 1116117A GB 4311866 A GB4311866 A GB 4311866A GB 4311866 A GB4311866 A GB 4311866A GB 1116117 A GB1116117 A GB 1116117A
Authority
GB
United Kingdom
Prior art keywords
displaceable member
coils
movement
arrangement
container
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
Application number
GB4311866A
Inventor
Petter Kenneth Wall
Werner Wilhe Schmidt-Tebelmann
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB4311866A priority Critical patent/GB1116117A/en
Priority to BE704342D priority patent/BE704342A/xx
Priority to NL6713178A priority patent/NL6713178A/xx
Publication of GB1116117A publication Critical patent/GB1116117A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

1,116,117. Variable inductance coils. STANDARD TELEPHONES & CABLES Ltd. 27 Sept., 1966, No. 43118/66. Heading H1T. A transformer or inductor for use in a tuning arrangement consists of a container (8, Fig. 5, not shown) in which is placed one or more coil assemblies comprising a spiral coil 3 and a single turn 6, made of thin or thick film deposits, placed on opposite sides of a substrate 1 and one surface of container 8, which may be made of either metal or insulating material, is provided with a slot (14) which permits movement of a displaceable member which varies the self inductance of the coils. The displaceable member consists of a flat plate 11 of high conductivity metal sandwiched between two pieces 12 of low power factor plastics material and a cut-out 13 modifies the rate at which the inductances of the coils vary with movement of the displaceable member. In an alternative arrangement the displaceable member is made of low power-factor insulating material having a high dielectric constant. In a modification, the coil assemblies are encapsulated in a synthetic arrangement and a space is left between the substrates to permit movement of the displaceable member.
GB4311866A 1966-09-27 1966-09-27 A tuning arrangement Expired GB1116117A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4311866A GB1116117A (en) 1966-09-27 1966-09-27 A tuning arrangement
BE704342D BE704342A (en) 1966-09-27 1967-09-27
NL6713178A NL6713178A (en) 1966-09-27 1967-09-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4311866A GB1116117A (en) 1966-09-27 1966-09-27 A tuning arrangement

Publications (1)

Publication Number Publication Date
GB1116117A true GB1116117A (en) 1968-06-06

Family

ID=10427395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4311866A Expired GB1116117A (en) 1966-09-27 1966-09-27 A tuning arrangement

Country Status (3)

Country Link
BE (1) BE704342A (en)
GB (1) GB1116117A (en)
NL (1) NL6713178A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471033A1 (en) * 1979-12-04 1981-06-12 Cotec Sa Productions Transformer for miniature electronic gas lighter - has primary formed from spiral conductor on PCB with flat fine wire coil secondary on opposite side
GB2173956A (en) * 1985-03-29 1986-10-22 Plessey Co Plc Integrated electrical transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471033A1 (en) * 1979-12-04 1981-06-12 Cotec Sa Productions Transformer for miniature electronic gas lighter - has primary formed from spiral conductor on PCB with flat fine wire coil secondary on opposite side
GB2173956A (en) * 1985-03-29 1986-10-22 Plessey Co Plc Integrated electrical transformer

Also Published As

Publication number Publication date
BE704342A (en) 1968-03-27
NL6713178A (en) 1968-03-28

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