FR2627016A1 - - Google Patents

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Publication number
FR2627016A1
FR2627016A1 FR8715402A FR8715402A FR2627016A1 FR 2627016 A1 FR2627016 A1 FR 2627016A1 FR 8715402 A FR8715402 A FR 8715402A FR 8715402 A FR8715402 A FR 8715402A FR 2627016 A1 FR2627016 A1 FR 2627016A1
Authority
FR
France
Prior art keywords
branches
antenna
spiral
coupled
power supplies
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
FR8715402A
Other languages
English (en)
French (fr)
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.)
Plessey Overseas Ltd
Original Assignee
Plessey Overseas 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 Plessey Overseas Ltd filed Critical Plessey Overseas Ltd
Publication of FR2627016A1 publication Critical patent/FR2627016A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H01Q9/27—Spiral antennas

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
  • Radar Systems Or Details Thereof (AREA)
FR8715402A 1986-04-12 1987-11-04 Pending FR2627016A1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8608970A GB2207556B (en) 1986-04-12 1986-04-12 Improvements in or relating to spiral antennas.

Publications (1)

Publication Number Publication Date
FR2627016A1 true FR2627016A1 (enrdf_load_stackoverflow) 1989-08-11

Family

ID=10596117

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8715402A Pending FR2627016A1 (enrdf_load_stackoverflow) 1986-04-12 1987-11-04

Country Status (6)

Country Link
DE (1) DE3739205A1 (enrdf_load_stackoverflow)
FR (1) FR2627016A1 (enrdf_load_stackoverflow)
GB (1) GB2207556B (enrdf_load_stackoverflow)
IT (1) IT1233844B (enrdf_load_stackoverflow)
NL (1) NL8715005A (enrdf_load_stackoverflow)
SE (1) SE8800463L (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19929879A1 (de) 1999-06-29 2001-01-18 Bosch Gmbh Robert Spiralantenne
DE10108993B4 (de) 2001-02-23 2004-12-16 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Bestimmung des Füllstandes eines Füllguts in einem Behälter
RU2414026C1 (ru) * 2010-03-10 2011-03-10 ОАО "Спутниковая система "Гонец" Малогабаритная широкополосная антенна однонаправленного излучения с круговой поляризацией
DE202013002682U1 (de) 2013-03-20 2013-04-26 Cetecom Gmbh Zirkular polarisierte Breitbandantenne und Anordnung derselben in einem reflektionsarmen Raum
DE102013004774B3 (de) * 2013-03-20 2014-09-25 Cetecom Gmbh Zirkular polarisierte Breitbandantenne und Anordnung derselben in einem reflektionsarmen Raum

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344425A (en) * 1966-06-13 1967-09-26 James E Webb Monopulse tracking system
DE2452703A1 (de) * 1974-11-06 1976-05-13 Harris Corp Antenne
US4315266A (en) * 1980-07-25 1982-02-09 Nasa Spiral slotted phased antenna array
US4396921A (en) * 1981-10-30 1983-08-02 Raytheon Company Matching section for multi-arm spiral antenna

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949407A (en) * 1972-12-25 1976-04-06 Harris Corporation Direct fed spiral antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344425A (en) * 1966-06-13 1967-09-26 James E Webb Monopulse tracking system
DE2452703A1 (de) * 1974-11-06 1976-05-13 Harris Corp Antenne
US4315266A (en) * 1980-07-25 1982-02-09 Nasa Spiral slotted phased antenna array
US4396921A (en) * 1981-10-30 1983-08-02 Raytheon Company Matching section for multi-arm spiral antenna

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MICROWAVE JOURNAL Décembre 1962, DEDHAM,MA,USA pages 61 - 68; ELLIOT , R.S.: 'A VIEW OF FREQUENCY ANTENNAS' *

Also Published As

Publication number Publication date
SE8800463D0 (sv) 1988-02-11
GB2207556A (en) 1989-02-01
GB2207556B (en) 1989-11-29
SE8800463L (sv) 1989-03-10
DE3739205A1 (de) 1989-06-01
NL8715005A (nl) 1989-04-03
IT8819128A0 (it) 1988-01-20
IT1233844B (it) 1992-04-21

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Legal Events

Date Code Title Description
TP Transmission of property
EM Correction of a material error concerning inscription in the national patent register