GB2254195B - Printed circuit board transformer - Google Patents

Printed circuit board transformer

Info

Publication number
GB2254195B
GB2254195B GB9203902A GB9203902A GB2254195B GB 2254195 B GB2254195 B GB 2254195B GB 9203902 A GB9203902 A GB 9203902A GB 9203902 A GB9203902 A GB 9203902A GB 2254195 B GB2254195 B GB 2254195B
Authority
GB
United Kingdom
Prior art keywords
circuit board
printed circuit
board transformer
transformer
printed
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 - Fee Related
Application number
GB9203902A
Other versions
GB2254195A (en
GB9203902D0 (en
Inventor
Esko Satomaki
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.)
Nokia Oyj
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of GB9203902D0 publication Critical patent/GB9203902D0/en
Publication of GB2254195A publication Critical patent/GB2254195A/en
Application granted granted Critical
Publication of GB2254195B publication Critical patent/GB2254195B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
    • H05K1/165—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed inductors
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
    • H05K1/023—Reduction of cross-talk, noise or electromagnetic interference using auxiliary mounted passive components or auxiliary substances
    • H05K1/0231—Capacitors or dielectric substances
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10015—Non-printed capacitor
GB9203902A 1991-03-19 1992-02-24 Printed circuit board transformer Expired - Fee Related GB2254195B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI911336A FI91930C (en) 1991-03-19 1991-03-19 Circuit board transformer and its use

Publications (3)

Publication Number Publication Date
GB9203902D0 GB9203902D0 (en) 1992-04-08
GB2254195A GB2254195A (en) 1992-09-30
GB2254195B true GB2254195B (en) 1995-06-28

Family

ID=8532145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9203902A Expired - Fee Related GB2254195B (en) 1991-03-19 1992-02-24 Printed circuit board transformer

Country Status (2)

Country Link
FI (1) FI91930C (en)
GB (1) GB2254195B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2732529A1 (en) * 1995-03-27 1996-10-04 Reltek Communications Frequency multiplexed signal transmission system esp. for apartments
DE19624939A1 (en) * 1996-06-23 1998-01-08 Alphasat Communication Gmbh Parallel strip waveguide coupling for loop antenna
US5697088A (en) * 1996-08-05 1997-12-09 Motorola, Inc. Balun transformer
JP2002217616A (en) * 2001-01-15 2002-08-02 Alps Electric Co Ltd Balanced-to-unbalanced transformer
JP2005512380A (en) * 2001-12-06 2005-04-28 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Balanced and unbalanced transformers and transceivers
CN102638237B (en) * 2011-12-30 2015-01-14 南通大学 Microwave balanced variable filter
CN102545830B (en) * 2012-02-06 2015-03-11 南通大学 Singly balanced circuit with adjustable microwave frequency and filtering function
GB201612032D0 (en) * 2016-07-11 2016-08-24 High Speed Trans Solutions Ltd Isolating transformer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376274A (en) * 1980-10-01 1983-03-08 Communications Patents Limited Printed circuit transformers
US4749963A (en) * 1985-12-11 1988-06-07 Matsushita Electric Industrial Co., Ltd. Oscillator having stripline loop resonator
EP0324240A2 (en) * 1988-01-15 1989-07-19 Nortel Networks Corporation Balanced planar transformers
US5017897A (en) * 1990-08-06 1991-05-21 Motorola, Inc. Split ring resonator bandpass filter with differential output

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376274A (en) * 1980-10-01 1983-03-08 Communications Patents Limited Printed circuit transformers
US4749963A (en) * 1985-12-11 1988-06-07 Matsushita Electric Industrial Co., Ltd. Oscillator having stripline loop resonator
EP0324240A2 (en) * 1988-01-15 1989-07-19 Nortel Networks Corporation Balanced planar transformers
US5017897A (en) * 1990-08-06 1991-05-21 Motorola, Inc. Split ring resonator bandpass filter with differential output

Also Published As

Publication number Publication date
FI911336A (en) 1992-09-20
FI91930B (en) 1994-05-13
GB2254195A (en) 1992-09-30
GB9203902D0 (en) 1992-04-08
FI91930C (en) 1994-08-25
FI911336A0 (en) 1991-03-19

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060224