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GB650615A - Improvements in or relating to electric waveguides - Google Patents

Improvements in or relating to electric waveguides

Info

Publication number
GB650615A
GB650615A GB2304747A GB2304747A GB650615A GB 650615 A GB650615 A GB 650615A GB 2304747 A GB2304747 A GB 2304747A GB 2304747 A GB2304747 A GB 2304747A GB 650615 A GB650615 A GB 650615A
Authority
GB
United Kingdom
Prior art keywords
transformer
dimension
load
impedance
section
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
GB2304747A
Inventor
John Collard
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB2304747A priority Critical patent/GB650615A/en
Priority to FR970556D priority patent/FR970556A/en
Publication of GB650615A publication Critical patent/GB650615A/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
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
    • H01P5/022—Transitions between lines of the same kind and shape, but with different dimensions
    • H01P5/024—Transitions between lines of the same kind and shape, but with different dimensions between hollow waveguides

Landscapes

  • Non-Reversible Transmitting Devices (AREA)

Abstract

650,615. Wave-guides; impedance transformers. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Aug. 20, 1947, No. 23047. [Class 40 (viii)] A length of waveguide of rectangular cross-section is joined to a load impedance through a transformer section of wave-guide of different crosssectional dimensions to the first length, these dimensions being so chosen as to match the impedance of the load to the characteristic impedance of the wave-guide. The calculation of the required dimensions is discussed in connection with the transmission of H 10 waves and the transforming section is a one quarter wavelength. In addition to the normal transforming action of a quarter wavelength section there are two transformer effects due to the change in the longer dimension of the crosssection of the guides at each end of the transformer. and four shunt reactances produced by the changes of each dimension at each end. The latter reactances can, however, be ignored if the characteristic impedance of the waveguide differs widely from that of the load. In the construction a length of guide 1 is connected to a load 2 through a transformer 3. By effecting changes in the short " b dimension and maintaining the long " a " dimension unaltered, the transformer effect due to changes in the " a " dimension is eliminated. Specifications 572,881 and 650,614 are referred to.
GB2304747A 1947-08-20 1947-08-20 Improvements in or relating to electric waveguides Expired GB650615A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2304747A GB650615A (en) 1947-08-20 1947-08-20 Improvements in or relating to electric waveguides
FR970556D FR970556A (en) 1947-08-20 1948-08-18 Electric waveguide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2304747A GB650615A (en) 1947-08-20 1947-08-20 Improvements in or relating to electric waveguides

Publications (1)

Publication Number Publication Date
GB650615A true GB650615A (en) 1951-02-28

Family

ID=10189242

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2304747A Expired GB650615A (en) 1947-08-20 1947-08-20 Improvements in or relating to electric waveguides

Country Status (2)

Country Link
FR (1) FR970556A (en)
GB (1) GB650615A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2432461A (en) * 2005-11-17 2007-05-23 Marconi Comm Gmbh T-shape waveguide twist-transformer junction
CN102709659A (en) * 2012-06-19 2012-10-03 成都赛纳赛德科技有限公司 Rectangular-waveguide impedance transducer
CN102723563A (en) * 2012-06-19 2012-10-10 成都赛纳赛德科技有限公司 Compact rectangular-waveguide impedance transducer
EP3062384A1 (en) * 2015-02-27 2016-08-31 ViaSat Inc. Ridge loaded waveguide combiner/divider

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL212773A (en) * 1956-01-26

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2432461A (en) * 2005-11-17 2007-05-23 Marconi Comm Gmbh T-shape waveguide twist-transformer junction
CN102709659A (en) * 2012-06-19 2012-10-03 成都赛纳赛德科技有限公司 Rectangular-waveguide impedance transducer
CN102723563A (en) * 2012-06-19 2012-10-10 成都赛纳赛德科技有限公司 Compact rectangular-waveguide impedance transducer
EP3062384A1 (en) * 2015-02-27 2016-08-31 ViaSat Inc. Ridge loaded waveguide combiner/divider
US9923256B2 (en) 2015-02-27 2018-03-20 Viasat, Inc. Ridge loaded waveguide combiner/divider

Also Published As

Publication number Publication date
FR970556A (en) 1951-01-05

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