GB1269322A - Improvements in miniature helical resonators - Google Patents

Improvements in miniature helical resonators

Info

Publication number
GB1269322A
GB1269322A GB2711/70A GB271170A GB1269322A GB 1269322 A GB1269322 A GB 1269322A GB 2711/70 A GB2711/70 A GB 2711/70A GB 271170 A GB271170 A GB 271170A GB 1269322 A GB1269322 A GB 1269322A
Authority
GB
United Kingdom
Prior art keywords
coil
threaded
former
helical resonators
base
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
GB2711/70A
Other languages
English (en)
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1269322A publication Critical patent/GB1269322A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Coils Or Transformers For Communication (AREA)
GB2711/70A 1969-01-27 1970-01-20 Improvements in miniature helical resonators Expired GB1269322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79433269A 1969-01-27 1969-01-27

Publications (1)

Publication Number Publication Date
GB1269322A true GB1269322A (en) 1972-04-06

Family

ID=25162349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2711/70A Expired GB1269322A (en) 1969-01-27 1970-01-20 Improvements in miniature helical resonators

Country Status (5)

Country Link
US (1) US3581249A (ja)
JP (1) JPS552723B1 (ja)
DE (2) DE7002406U (ja)
GB (1) GB1269322A (ja)
SE (1) SE354391B (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101854A (en) * 1977-01-28 1978-07-18 The United States Of America As Represented By The Secretary Of The Army Tunable helical resonator
US4284966A (en) * 1979-12-21 1981-08-18 Motorola, Inc. Wide bandwidth helical resonator filter
US4385279A (en) * 1981-08-04 1983-05-24 Motorola, Inc. Tunable helical resonator
DE3146168C2 (de) * 1981-11-21 1986-07-24 Neosid Pemetzrieder Gmbh & Co Kg, 5884 Halver Induktives Bauelement, insbesondere Spule für hohe und sehr hohe Frequenzen sowie Verfahren zur Herstellung eines solchen Bauelementes
JPH0343683U (ja) * 1989-08-30 1991-04-24
DE9014920U1 (de) * 1990-10-29 1991-01-10 Neosid Pemetzrieder Gmbh & Co Kg, 5884 Halver Induktives Bauelement, insbesondere induktives Miniatur-Bauelement mit Kapazitätsabstimmvorrichtung
IL119973A0 (en) * 1997-01-07 1997-04-15 Galtronics Ltd Helical antenna element
US6031436A (en) * 1998-04-02 2000-02-29 Space Systems/Loral, Inc. Single and dual mode helix loaded cavity filters
JP5390504B2 (ja) * 2007-04-02 2014-01-15 アレジアンス、コーポレイション 高周波振動による呼吸器系治療装置
CN102055426A (zh) * 2009-10-30 2011-05-11 鸿富锦精密工业（深圳）有限公司 滤波器
US8471664B1 (en) * 2012-04-24 2013-06-25 Zippy Technology Corp. Transformer without coil racks

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2227846A (en) * 1935-05-11 1941-01-07 Rca Corp High frequency coil
BE506885A (ja) * 1950-11-04
US2889522A (en) * 1953-08-05 1959-06-02 Gen Instrument Corp Tuned transformer assembly
US3060394A (en) * 1958-12-20 1962-10-23 Maeda Hisao Radio transformer
US3092796A (en) * 1959-05-07 1963-06-04 Maeda Hisao Intermediate frequency transformer
US3409850A (en) * 1965-10-28 1968-11-05 Oshima Masaomi Miniature inductance device for communication

Also Published As

Publication number Publication date
DE2003186A1 (de) 1970-08-20
US3581249A (en) 1971-05-25
JPS552723B1 (ja) 1980-01-22
DE7002406U (de) 1970-07-30
SE354391B (ja) 1973-03-05

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