FR2067222A1 - - Google Patents

Info

Publication number
FR2067222A1
FR2067222A1 FR6940807A FR6940807A FR2067222A1 FR 2067222 A1 FR2067222 A1 FR 2067222A1 FR 6940807 A FR6940807 A FR 6940807A FR 6940807 A FR6940807 A FR 6940807A FR 2067222 A1 FR2067222 A1 FR 2067222A1
Authority
FR
France
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.)
Granted
Application number
FR6940807A
Other languages
French (fr)
Other versions
FR2067222B1 (enrdf_load_stackoverflow
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.)
GE Healthcare UK Ltd
Plessey Co Ltd
Original Assignee
GE Healthcare UK Ltd
Plessey 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
Priority to GB4970768A priority Critical patent/GB1231022A/en
Application filed by GE Healthcare UK Ltd, Plessey Co Ltd filed Critical GE Healthcare UK Ltd
Priority to FR6940807A priority patent/FR2067222B1/fr
Publication of FR2067222A1 publication Critical patent/FR2067222A1/fr
Application granted granted Critical
Publication of FR2067222B1 publication Critical patent/FR2067222B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/28—Impedance matching networks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/328—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • 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
FR6940807A 1968-10-19 1969-11-26 Expired FR2067222B1 (enrdf_load_stackoverflow)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4970768A GB1231022A (enrdf_load_stackoverflow) 1968-10-19 1968-10-19
FR6940807A FR2067222B1 (enrdf_load_stackoverflow) 1968-10-19 1969-11-26

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4970768 1968-10-19
FR6940807A FR2067222B1 (enrdf_load_stackoverflow) 1968-10-19 1969-11-26

Publications (2)

Publication Number Publication Date
FR2067222A1 true FR2067222A1 (enrdf_load_stackoverflow) 1971-08-20
FR2067222B1 FR2067222B1 (enrdf_load_stackoverflow) 1975-01-10

Family

ID=26215398

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6940807A Expired FR2067222B1 (enrdf_load_stackoverflow) 1968-10-19 1969-11-26

Country Status (2)

Country Link
FR (1) FR2067222B1 (enrdf_load_stackoverflow)
GB (1) GB1231022A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2618275A1 (fr) * 1987-07-17 1989-01-20 Telecommunications Sa Dipole reactif.
DE19633253A1 (de) * 1996-08-17 1998-02-19 Rr Elektronische Geraete Gmbh Antenne für digitalen Selektivruf

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK147560C (da) * 1980-03-13 1985-07-22 Bang & Olufsen As Modtagerantenne for magnetiske signaler, f.eks. ferritantenne
DE3420046A1 (de) * 1984-05-29 1987-01-08 Licentia Gmbh Antennenanzuender fuer elektronische annaeherungs- oder abstandszuender

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR895309A (fr) * 1941-01-29 1945-01-22 Telefunken Gmbh Perfectionnements aux antennes dirigées à large bande passante
US2512078A (en) * 1946-01-22 1950-06-20 Rca Corp Broad-band antenna
FR1188585A (fr) * 1956-11-30 1959-09-23 Telefunken Gmbh Antenne dirigée composée d'un certain nombre d'éléments rayonnants individuels subdivisés électriquement
US2913722A (en) * 1957-03-11 1959-11-17 Brueckmann Helmut Broad band vertical antenna
US3438042A (en) * 1966-03-03 1969-04-08 Gen Dynamics Corp Center fed vertical dipole antenna

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR895309A (fr) * 1941-01-29 1945-01-22 Telefunken Gmbh Perfectionnements aux antennes dirigées à large bande passante
US2512078A (en) * 1946-01-22 1950-06-20 Rca Corp Broad-band antenna
FR1188585A (fr) * 1956-11-30 1959-09-23 Telefunken Gmbh Antenne dirigée composée d'un certain nombre d'éléments rayonnants individuels subdivisés électriquement
US2913722A (en) * 1957-03-11 1959-11-17 Brueckmann Helmut Broad band vertical antenna
US3438042A (en) * 1966-03-03 1969-04-08 Gen Dynamics Corp Center fed vertical dipole antenna

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2618275A1 (fr) * 1987-07-17 1989-01-20 Telecommunications Sa Dipole reactif.
DE19633253A1 (de) * 1996-08-17 1998-02-19 Rr Elektronische Geraete Gmbh Antenne für digitalen Selektivruf

Also Published As

Publication number Publication date
FR2067222B1 (enrdf_load_stackoverflow) 1975-01-10
GB1231022A (enrdf_load_stackoverflow) 1971-05-05

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Legal Events

Date Code Title Description
ST Notification of lapse