IT1233844B - Perfezionamenti in, o relativi ad antenne a spirale - Google Patents

Perfezionamenti in, o relativi ad antenne a spirale

Info

Publication number
IT1233844B
IT1233844B IT8819128A IT1912888A IT1233844B IT 1233844 B IT1233844 B IT 1233844B IT 8819128 A IT8819128 A IT 8819128A IT 1912888 A IT1912888 A IT 1912888A IT 1233844 B IT1233844 B IT 1233844B
Authority
IT
Italy
Prior art keywords
spiral antennas
antennas
spiral
Prior art date
Application number
IT8819128A
Other languages
English (en)
Italian (it)
Other versions
IT8819128A0 (it
Inventor
Laurance William Dicken
Jonathan Roy Ladbrooke
Original Assignee
Plessey Overseas
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 filed Critical Plessey Overseas
Publication of IT8819128A0 publication Critical patent/IT8819128A0/it
Application granted granted Critical
Publication of IT1233844B publication Critical patent/IT1233844B/it

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
IT8819128A 1986-04-12 1988-01-20 Perfezionamenti in, o relativi ad antenne a spirale IT1233844B (it)

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 (2)

Publication Number Publication Date
IT8819128A0 IT8819128A0 (it) 1988-01-20
IT1233844B true IT1233844B (it) 1992-04-21

Family

ID=10596117

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8819128A IT1233844B (it) 1986-04-12 1988-01-20 Perfezionamenti in, o relativi ad antenne a spirale

Country Status (6)

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

Families Citing this family (4)

* 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
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

Family Cites Families (5)

* 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
US3949407A (en) * 1972-12-25 1976-04-06 Harris Corporation Direct fed spiral antenna
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

Also Published As

Publication number Publication date
IT8819128A0 (it) 1988-01-20
GB2207556A (en) 1989-02-01
NL8715005A (nl) 1989-04-03
GB2207556B (en) 1989-11-29
DE3739205A1 (de) 1989-06-01
SE8800463L (sv) 1989-03-10
SE8800463D0 (sv) 1988-02-11
FR2627016A1 (sv) 1989-08-11

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