GB863879A - Improvements in or relating to non-reciprocal electric coupling devices - Google Patents

Improvements in or relating to non-reciprocal electric coupling devices

Info

Publication number
GB863879A
GB863879A GB34611/57A GB3461157A GB863879A GB 863879 A GB863879 A GB 863879A GB 34611/57 A GB34611/57 A GB 34611/57A GB 3461157 A GB3461157 A GB 3461157A GB 863879 A GB863879 A GB 863879A
Authority
GB
United Kingdom
Prior art keywords
coupling
windings
electric coupling
nov
high frequency
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
GB34611/57A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB863879A publication Critical patent/GB863879A/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
    • H03H7/002—Gyrators

Landscapes

  • Coils Or Transformers For Communication (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

863,879. Coupling circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 6, 1957 [Nov. 9, 1956], No. 34611/57. Class 40(8) A non-reciprocal electric coupling device comprises two planar windings 1, 2 crossing at right angles and surrounding a common core 3 of high frequency magnetic material such as ferrite which is pre-polarized in a direction parallel to the intersecting line of the planes of the windings, an external electric coupling being provided between the windings, and the pre-polarizing field having a strength such that the high frequency material is in magnetic resonance for a given frequency and the external coupling is purely reactive and has a value such that the coupling factor is nil in one direction for send frequency. If the load impedance Zu is the complex conjugate of the internal impedance of the coupling device, the transmission output is stated to be unity. In the practical embodiment of Figs. 2 and 3 (not shown) coaxial lines are coupled by asymmetrical Lecher lines having a common base on a ferrite core.
GB34611/57A 1956-11-09 1957-11-06 Improvements in or relating to non-reciprocal electric coupling devices Expired GB863879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL863879X 1956-11-09

Publications (1)

Publication Number Publication Date
GB863879A true GB863879A (en) 1961-03-29

Family

ID=19849211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34611/57A Expired GB863879A (en) 1956-11-09 1957-11-06 Improvements in or relating to non-reciprocal electric coupling devices

Country Status (5)

Country Link
US (1) US2944229A (en)
DE (1) DE1041549B (en)
FR (1) FR1185886A (en)
GB (1) GB863879A (en)
NL (2) NL94723C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131627A (en) * 1982-12-03 1984-06-20 Raytheon Co A magnetically tuned resonant circuit

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3010085A (en) * 1958-11-17 1961-11-21 Bell Telephone Labor Inc Isolators in lumped constant systems
US3125732A (en) * 1958-11-20 1964-03-17 Resonant isolator composed of a
US3047821A (en) * 1960-12-27 1962-07-31 Aircraft Armaments Inc Isolator using hall effect gyrator
US3310759A (en) * 1963-05-09 1967-03-21 Nippon Electric Co High frequency circulator comprising a plurality of non-reciprocal ferromagnetic circuits
DE1259421B (en) * 1963-11-29 1968-01-25 Melabs Fa Circulator
US3531747A (en) * 1969-03-07 1970-09-29 Melabs Tunable inductor
NL6910116A (en) * 1969-07-02 1971-01-05
US4210886A (en) * 1978-09-18 1980-07-01 Motorola, Inc. Isolator having reactive neutralizing means and predetermined angle between input-output windings
JP3264194B2 (en) * 1995-12-13 2002-03-11 株式会社村田製作所 Non-reciprocal circuit device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR965369A (en) * 1947-04-29 1950-09-11
NL156296B (en) * 1950-09-28 Lely Nv C Van Der CHARGING DEVICE.
DE1066294B (en) * 1951-03-01 1959-10-01 N. V. Philips' Gloeilamkenfabrieken, Eindhoven (Niederlande) Four-pole network for connecting the output electrodes of an amplifier tube with the input electrodes of the following amplifier tube
US2798205A (en) * 1952-05-28 1957-07-02 Bell Telephone Labor Inc Magnetically controllable transmission system
US2764676A (en) * 1952-09-13 1956-09-25 Philco Corp Gyromagnetic integrator circuit
US2811697A (en) * 1953-09-16 1957-10-29 Bell Telephone Labor Inc Magnetoelectric induction devices
US2834943A (en) * 1953-09-16 1958-05-13 Bell Telephone Labor Inc Mechanically coupled electromechanical and magnetomechanical transducers
DE938021C (en) * 1954-04-20 1956-01-19 Patelhold Patentverwertung Device for changeable coupling of two Lecher lines
US2802183A (en) * 1954-06-04 1957-08-06 Sanders Associates Inc Microwave modulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131627A (en) * 1982-12-03 1984-06-20 Raytheon Co A magnetically tuned resonant circuit

Also Published As

Publication number Publication date
DE1041549B (en) 1958-10-23
NL94723C (en)
FR1185886A (en) 1959-08-07
NL212080A (en)
US2944229A (en) 1960-07-05

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