BR9005598A - Contato de simetria - Google Patents

Contato de simetria

Info

Publication number: BR9005598A
Authority: BR; Brazil
Prior art keywords: symmetry contact; symmetry; contact
Prior art date: 1989-11-09

Application number

BR909005598A

Other languages

English (en)

Inventor

Felix Gassmann

Ole Snedkerud

Original Assignee

Asea Brown Boveri

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.)

1989-11-09

Filing date

1990-11-06

Publication date

1991-09-17

1990-11-06 Application filed by Asea Brown Boveri filed Critical Asea Brown Boveri

1991-09-17 Publication of BR9005598A publication Critical patent/BR9005598A/pt

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
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices

BR909005598A 1989-11-09 1990-11-06 Contato de simetria BR9005598A (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH404889		1989-11-09

Publications (1)

Publication Number	Publication Date
BR9005598A true BR9005598A (pt)	1991-09-17

Family

ID=4268844

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR909005598A BR9005598A (pt)	1989-11-09	1990-11-06	Contato de simetria

Country Status (9)

Country	Link
US (1)	US5115214A (pt)
EP (1)	EP0426988A1 (pt)
JP (1)	JPH03172001A (pt)
CN (1)	CN1018494B (pt)
BR (1)	BR9005598A (pt)
CA (1)	CA2026846A1 (pt)
CS (1)	CS276882B6 (pt)
PL (1)	PL287629A1 (pt)
RU (1)	RU1836757C (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5379006A (en) *	1993-06-11	1995-01-03	The United States Of America As Represented By The Secretary Of The Army	Wideband (DC to GHz) balun
US5733893A (en) *	1995-03-15	1998-03-31	Washington University	Method of identifying molecules that regulate FGF activity
US6009318A (en) *	1997-07-23	1999-12-28	Ericsson Inc.	Electronically adjustable balanced-to-unbalanced converters (balun)
US6097349A (en) *	1997-11-18	2000-08-01	Ericsson Inc.	Compact antenna feed circuits
US20030211605A1 (en) *	2001-05-01	2003-11-13	Lee Sang-Hun	Derivation of midbrain dopaminergic neurons from embryonic stem cells
US20040201539A1 (en) *	2003-04-09	2004-10-14	Yewen Robert G.	Radio frequency identification system and antenna system
EP1623479B1 (de)	2003-05-14	2006-08-23	Rohde & Schwarz GmbH & Co. KG	Umsymmetrieranordnung
RU2255393C2 (ru) *	2003-07-07	2005-06-27	Новосибирский государственный технический университет	Симметрирующее устройство
EP1517403A3 (en)	2003-08-29	2006-04-12	Fujitsu Ten Limited	Circular polarization antenna and composite antenna including this antenna
FR2907600B1 (fr) *	2006-10-24	2009-11-20	Satimo Sa	Procede de couplage a bande de fonctionnement moyenne a large jonction a mode orthogonal et coupleur mettant en oeuvre ledit procede
CN101599743B (zh) *	2009-05-18	2011-06-08	北京瑞夫艾电子有限公司	一种用于射频推挽功率放大器的巴伦阻抗变换器
CN101577526B (zh) *	2009-05-31	2011-04-27	北京瑞夫艾电子有限公司	一种射频推挽功率放大器
CN103378391B (zh) *	2012-04-27	2016-08-31	Ge医疗系统环球技术有限公司	一种巴伦

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2187014A (en) *	1937-03-13	1940-01-16	Telefunken Gmbh	Antenna transformer
DE724131C (de) *	1937-03-14	1942-08-19	Telefunken Gmbh	Schaltung zur Anpassung einer unsymmetrischen Hochfrequenzanordnung an eine symmetrische
US2368694A (en) *	1942-08-15	1945-02-06	Standard Telephones Cables Ltd	Coupling device
US2646505A (en) *	1946-03-01	1953-07-21	Us Sec War	Broad band bidirectional antenna
US3129393A (en) *	1961-03-30	1964-04-14	James T Coleman	Balun transformer with variable transformation ratio
US3265994A (en) *	1964-06-10	1966-08-09	Collins Radio Co	Radio frequency coupling transmission line circuitry

1990
- 1990-10-01 EP EP90118799A patent/EP0426988A1/de not_active Withdrawn
- 1990-10-03 CA CA002026846A patent/CA2026846A1/en not_active Abandoned
- 1990-10-11 US US07/595,406 patent/US5115214A/en not_active Expired - Fee Related
- 1990-10-26 JP JP2290623A patent/JPH03172001A/ja active Pending
- 1990-11-05 PL PL28762990A patent/PL287629A1/xx unknown
- 1990-11-06 RU SU904831600A patent/RU1836757C/ru active
- 1990-11-06 BR BR909005598A patent/BR9005598A/pt not_active Application Discontinuation
- 1990-11-06 CS CS905442A patent/CS276882B6/cs unknown
- 1990-11-09 CN CN90109007.7A patent/CN1018494B/zh not_active Expired

Also Published As

Publication number	Publication date
PL287629A1 (en)	1991-11-04
EP0426988A1 (de)	1991-05-15
CS9005442A2 (en)	1991-09-15
CS276882B6 (en)	1992-08-12
US5115214A (en)	1992-05-19
CN1018494B (zh)	1992-09-30
RU1836757C (ru)	1993-08-23
CN1051827A (zh)	1991-05-29
JPH03172001A (ja)	1991-07-25
CA2026846A1 (en)	1991-05-10

Publication	Publication Date	Title
FI920471A0 (fi)	1992-02-04	Kaareutusmekanismi
FI921975A0 (fi)	1992-04-30	Levyhaihdutin
BR9005598A (pt)	1991-09-17	Contato de simetria
NO915050D0 (no)	1991-12-20	Indenoindolforbindelser
DE69027258D1 (de)	1996-07-11	Phenacylpyridiniothiocephalosporine
FI89684C (fi)	1993-11-10	Riktdon foer bilkarosseri
NO922024D0 (no)	1992-05-22	Benzoksazinfarvestoffer
FI904121A0 (fi)	1990-08-20	Osiensyöttölaite
FI902319A0 (fi)	1990-05-09	Kampiakselivaihteisto
FR2644911B1 (fr)	1993-04-09	Lecteur de coordonnees
FI921332A7 (fi)	1992-03-26	Dibentsofuraanikarboksamideja
KR900015185U (ko)	1990-09-01	떡시루
ATA149789A (de)	1992-04-15	Schienenrad
ES1012303Y (es)	1991-01-16	Petaca-licorera
DE59010414D1 (de)	1996-08-14	Fluorphenylpyridine
NO920393L (no)	1992-02-07	Skjaereapparat
NO920575D0 (no)	1992-02-13	Papirperforator
SE8902780D0 (sv)	1989-08-16	Corncerning qa-matrix
IT8986214A0 (it)	1989-08-02	Austroselector
IT8906403A0 (it)	1989-02-21	Elettro-insetticida
IT89007109U1 (it)	1991-05-09	Bombaqua
NO920458D0 (no)	1992-02-04	Pressepartiavvanningsvevnad
NO922458D0 (no)	1992-06-19	Gassdetekteringssystem
PT8057Y (pt)	1993-01-29	Insectario-expositor
SE8900599D0 (sv)	1989-02-21	Maettratt

Legal Events

Date	Code	Title	Description
1995-11-28	FD3	Appl. lapsed due to non-payment of renewal fee