JPS54115044A - Circulator - Google Patents

Circulator

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Publication number
JPS54115044A
JPS54115044A JP2342178A JP2342178A JPS54115044A JP S54115044 A JPS54115044 A JP S54115044A JP 2342178 A JP2342178 A JP 2342178A JP 2342178 A JP2342178 A JP 2342178A JP S54115044 A JPS54115044 A JP S54115044A
Authority
JP
Japan
Prior art keywords
circulator
circuit
scattering matrix
matrix
equation
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.)
Pending
Application number
JP2342178A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Naito
Hidehiko Kato
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2342178A priority Critical patent/JPS54115044A/en
Publication of JPS54115044A publication Critical patent/JPS54115044A/en
Pending legal-status Critical Current

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  • Non-Reversible Transmitting Devices (AREA)

Abstract

PURPOSE: To constitute the circulator with transistor circuits etc., by locating the non-reciprocity circuit having two openings as an element circuit so that it has a given directivity and by sequentially connecting the element circuits sequentially with power distributor.
CONSTITUTION: Three isolators 11,12,13 consisting of transistors etc. are located to a given direction, and three power distributors 21,22,23 are inserted among them. The scattering matrix of the isolator is as expressed in equation (I), and the power distributor is of Wilkinson type and its scattering matrix is taken as eqation (II). However, |α1|2+|α2|2≤1. The overall scattering matrix is expressed as equation (III) from the equations(I) and (II). From the type of S matrix, the circulator which has perfect matching at each port and the isolation is also complete and the amount of transmission is α1α2U, can be obtained. Further, the circulator with three opeings can be obtained by connecting the external of the three opening circulator constituted with the non-reciprocity circuit having two openings as element circuit to the six opening reactance compensation circuit.
COPYRIGHT: (C)1979,JPO&Japio
JP2342178A 1978-02-28 1978-02-28 Circulator Pending JPS54115044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2342178A JPS54115044A (en) 1978-02-28 1978-02-28 Circulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2342178A JPS54115044A (en) 1978-02-28 1978-02-28 Circulator

Publications (1)

Publication Number Publication Date
JPS54115044A true JPS54115044A (en) 1979-09-07

Family

ID=12110029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2342178A Pending JPS54115044A (en) 1978-02-28 1978-02-28 Circulator

Country Status (1)

Country Link
JP (1) JPS54115044A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6165578A (en) * 1984-09-06 1986-04-04 Matsushita Electric Ind Co Ltd Television synchronizing receiver
WO2012124537A1 (en) * 2011-03-16 2012-09-20 株式会社村田製作所 Nonreciprocal circuit element and wireless communication terminal device
CN104868212A (en) * 2014-02-25 2015-08-26 南京理工大学 Mixed integrated active circulator based on GaN MMIC power amplifier

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3277400A (en) * 1964-04-27 1966-10-04 Oresto J Digiondomenico Low loss ferrite power circulator operating as a power combiner or power divider

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3277400A (en) * 1964-04-27 1966-10-04 Oresto J Digiondomenico Low loss ferrite power circulator operating as a power combiner or power divider

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6165578A (en) * 1984-09-06 1986-04-04 Matsushita Electric Ind Co Ltd Television synchronizing receiver
WO2012124537A1 (en) * 2011-03-16 2012-09-20 株式会社村田製作所 Nonreciprocal circuit element and wireless communication terminal device
CN103299479A (en) * 2011-03-16 2013-09-11 株式会社村田制作所 Nonreciprocal circuit element and wireless communication terminal device
US8723615B2 (en) 2011-03-16 2014-05-13 Murata Manufacturing Co., Ltd. Non-reciprocal circuit device and radio communication terminal device
JP5633633B2 (en) * 2011-03-16 2014-12-03 株式会社村田製作所 Non-reciprocal circuit device and wireless communication terminal device
CN104868212A (en) * 2014-02-25 2015-08-26 南京理工大学 Mixed integrated active circulator based on GaN MMIC power amplifier
CN104868212B (en) * 2014-02-25 2017-11-14 南京理工大学 Hybrid integrated active circulator based on GaN MMIC power amplifiers

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