GB590203A - Improvements in or relating to electrical impedance-transforming networks - Google Patents

Improvements in or relating to electrical impedance-transforming networks

Info

Publication number
GB590203A
GB590203A GB516/45A GB51645A GB590203A GB 590203 A GB590203 A GB 590203A GB 516/45 A GB516/45 A GB 516/45A GB 51645 A GB51645 A GB 51645A GB 590203 A GB590203 A GB 590203A
Authority
GB
United Kingdom
Prior art keywords
relating
coils
electrical impedance
output terminals
transformation ratio
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
GB516/45A
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.)
Patelhold Patenverwertungs and Elektro-Holding AG
Original Assignee
Patelhold Patenverwertungs and Elektro-Holding AG
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 Patelhold Patenverwertungs and Elektro-Holding AG filed Critical Patelhold Patenverwertungs and Elektro-Holding AG
Publication of GB590203A publication Critical patent/GB590203A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
    • H03H7/422—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns comprising distributed impedance elements together with lumped impedance elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks
    • H03H7/383—Impedance-matching networks comprising distributed impedance elements together with lumped impedance elements

Landscapes

  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

590,203. Impedance networks. PATELHOLD PATENTVERWERTUNGS- & ELEKTRO-HOLDING AKT.-GES. Jan. 5, 1945, No. 516. Convention date, Oct. 16, 1943. [Class 40 (iii)] Two or more coil systems 15, 16, Fig. 4, of the kind described in Specification 585,995 and each comprising a pair of helices wound on the same former or core, are connected in parallel at their input terminals 1, 2, while their output terminals are connected in series between an overall pair of output terminals 3, 4. This arrangement gives an impedance transformation ratio of 1 :4. Two or more such systems may be connected in cascade, Fig. 4. Three pairs of coils may be connected as shown in Fig. 3, and if n coils are similarly connected the impedance transformation ratio is 1 : n<2>. The method may be used for matching a push-pull oscillator to an aerial, Fig. 5 (not shown).
GB516/45A 1943-10-16 1945-01-05 Improvements in or relating to electrical impedance-transforming networks Expired GB590203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH257887T 1943-10-16

Publications (1)

Publication Number Publication Date
GB590203A true GB590203A (en) 1947-07-10

Family

ID=1819929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB516/45A Expired GB590203A (en) 1943-10-16 1945-01-05 Improvements in or relating to electrical impedance-transforming networks

Country Status (3)

Country Link
CH (1) CH257887A (en)
GB (1) GB590203A (en)
NL (1) NL66665C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777996A (en) * 1954-12-23 1957-01-15 Collins Radio Co Impedance matching device
US2952822A (en) * 1959-05-01 1960-09-13 Harrison A G Stone Radio frequency transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777996A (en) * 1954-12-23 1957-01-15 Collins Radio Co Impedance matching device
US2952822A (en) * 1959-05-01 1960-09-13 Harrison A G Stone Radio frequency transformer

Also Published As

Publication number Publication date
NL66665C (en) 1950-10-17
CH257887A (en) 1948-10-31

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