GB1259689A - Improvements relating to directional couplers - Google Patents

Improvements relating to directional couplers

Info

Publication number
GB1259689A
GB1259689A GB17995/69A GB1799569A GB1259689A GB 1259689 A GB1259689 A GB 1259689A GB 17995/69 A GB17995/69 A GB 17995/69A GB 1799569 A GB1799569 A GB 1799569A GB 1259689 A GB1259689 A GB 1259689A
Authority
GB
United Kingdom
Prior art keywords
line
layer
directional couplers
april
capacitance
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
GB17995/69A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1259689A publication Critical patent/GB1259689A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
    • H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
    • H01P5/185—Edge coupled lines

Landscapes

  • Semiconductor Integrated Circuits (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Coils Or Transformers For Communication (AREA)
GB17995/69A 1968-04-08 1969-04-08 Improvements relating to directional couplers Expired GB1259689A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72626968A 1968-04-08 1968-04-08

Publications (1)

Publication Number Publication Date
GB1259689A true GB1259689A (en) 1972-01-12

Family

ID=24917889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17995/69A Expired GB1259689A (en) 1968-04-08 1969-04-08 Improvements relating to directional couplers

Country Status (4)

Country Link
US (1) US3500255A (de)
DE (1) DE1914173C3 (de)
FR (1) FR2005723A1 (de)
GB (1) GB1259689A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2630105B2 (ja) 1991-04-30 1997-07-16 株式会社村田製作所 方向性結合器
US5313175A (en) * 1993-01-11 1994-05-17 Itt Corporation Broadband tight coupled microstrip line structures
US7187062B2 (en) * 2004-04-14 2007-03-06 Avago Technologies Wireless Ip (Singapore) Pte. Ltd. Coupler detector
US8125289B2 (en) * 2009-04-10 2012-02-28 Broadcom Corporation Transmission line pairs with enhanced coupling therebetween and negligible coupling to ground

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951218A (en) * 1957-02-19 1960-08-30 Itt Directional couplings
GB1079204A (en) * 1963-12-24 1967-08-16 Hughes Aircraft Co Improvements in and relating to thin film electrical devices
US3416042A (en) * 1964-09-18 1968-12-10 Texas Instruments Inc Microwave integrated circuit mixer

Also Published As

Publication number Publication date
DE1914173C3 (de) 1975-10-09
DE1914173B2 (de) 1970-03-26
US3500255A (en) 1970-03-10
DE1914173A1 (de) 1969-10-16
FR2005723A1 (de) 1969-12-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee