IT8719088A0 - Antenna doppler a guida d'onda scanalata polarizzata circolarmente. - Google Patents

Antenna doppler a guida d'onda scanalata polarizzata circolarmente.

Info

Publication number
IT8719088A0
IT8719088A0 IT8719088A IT1908887A IT8719088A0 IT 8719088 A0 IT8719088 A0 IT 8719088A0 IT 8719088 A IT8719088 A IT 8719088A IT 1908887 A IT1908887 A IT 1908887A IT 8719088 A0 IT8719088 A0 IT 8719088A0
Authority
IT
Italy
Prior art keywords
circularly polarized
doppler antenna
grooved waveguide
grooved
waveguide
Prior art date
Application number
IT8719088A
Other languages
English (en)
Other versions
IT1201154B (it
Inventor
James B Mead
Robert K Bevan
Leonard Schwartz
Original Assignee
Singer Co
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 Singer Co filed Critical Singer Co
Publication of IT8719088A0 publication Critical patent/IT8719088A0/it
Application granted granted Critical
Publication of IT1201154B publication Critical patent/IT1201154B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/24—Polarising devices; Polarisation filters 
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/24—Polarising devices; Polarisation filters 
    • H01Q15/242—Polarisation converters
    • H01Q15/244—Polarisation converters converting a linear polarised wave into a circular polarised wave
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/004—Antennas or antenna systems providing at least two radiating patterns providing two or four symmetrical beams for Janus application
IT19088/87A 1986-01-14 1987-01-14 Antenna doppler a guida d'onda scanalata polarizzata circolarmente IT1201154B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/818,646 US4698639A (en) 1986-01-14 1986-01-14 Circularly polarized leaky waveguide doppler antenna

Publications (2)

Publication Number Publication Date
IT8719088A0 true IT8719088A0 (it) 1987-01-14
IT1201154B IT1201154B (it) 1989-01-27

Family

ID=25226046

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19088/87A IT1201154B (it) 1986-01-14 1987-01-14 Antenna doppler a guida d'onda scanalata polarizzata circolarmente

Country Status (10)

Country Link
US (1) US4698639A (it)
JP (1) JPS62171209A (it)
AU (1) AU585114B2 (it)
DE (1) DE3700886A1 (it)
FR (1) FR2592993A1 (it)
GB (1) GB2185355B (it)
IL (1) IL80563A0 (it)
IT (1) IT1201154B (it)
NO (1) NO865029L (it)
SE (1) SE8700010L (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1304155C (en) * 1987-10-02 1992-06-23 Keith C. Smith Lens/polarizer/radome
US5943023A (en) * 1995-12-21 1999-08-24 Endgate Corporation Flared trough waveguide antenna
US6600896B2 (en) * 1999-06-25 2003-07-29 Cocomo Mb Communications, Inc. Exciter system and excitation methods for communications within and very near to vehicles
US7099621B1 (en) * 1999-06-25 2006-08-29 Cocomo Mb Communications, Inc. Electromagnetic field communications system for wireless networks
US6891512B2 (en) * 2000-12-27 2005-05-10 Cocomo Mb Cojmmunications, Inc. Antenna
US6956534B2 (en) * 2000-12-27 2005-10-18 Cocomo Mb Communications, Inc. Method and apparatus for improving antenna efficiency
US20050168392A1 (en) * 2004-01-05 2005-08-04 Cocomo Mb Communications, Inc. Antenna efficiency
FR3003700B1 (fr) * 2013-03-19 2016-07-22 Thales Sa Dispositif de reduction de signature radar d'antenne et systeme antennaire associe
CN106848521B (zh) * 2017-02-24 2022-05-10 通号电缆集团有限公司 一种双极化漏泄波导
CN114843761B (zh) * 2022-04-13 2023-03-24 南昌大学 一种基于圆极化机载微波辐射计天线

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721988A (en) * 1971-08-16 1973-03-20 Singer Co Leaky wave guide planar array antenna
US3754271A (en) * 1972-07-03 1973-08-21 Gte Sylvania Inc Broadband antenna polarizer
IT1035550B (it) * 1975-04-04 1979-10-20 Selenia Ind Elettroniche Perfezionemanto nei sistemi radianti a settore
DE3027094C2 (de) * 1980-07-17 1987-03-19 Siemens AG, 1000 Berlin und 8000 München Umpolarisiereinrichtung zur Erzeugung zirkular polarisierter elektromagnetischer Wellen
IL66327A0 (it) * 1982-07-15 1982-11-30
FR2540296A1 (fr) * 1983-01-31 1984-08-03 Thomson Csf Filtre spatial d'ondes electromagnetiques de polarisation circulaire et antenne cassegrain comportant un tel filtre
GB2155694B (en) * 1984-03-06 1987-08-12 Decca Ltd Antenna for circularly polarised radiation

Also Published As

Publication number Publication date
SE8700010D0 (sv) 1987-01-02
AU585114B2 (en) 1989-06-08
AU6749587A (en) 1987-07-16
GB8627719D0 (en) 1986-12-17
NO865029D0 (no) 1986-12-12
US4698639A (en) 1987-10-06
JPS62171209A (ja) 1987-07-28
IL80563A0 (en) 1987-02-27
GB2185355A (en) 1987-07-15
IT1201154B (it) 1989-01-27
DE3700886A1 (de) 1987-07-16
SE8700010L (sv) 1987-07-15
GB2185355B (en) 1989-10-25
FR2592993A1 (fr) 1987-07-17
NO865029L (no) 1987-07-15

Similar Documents

Publication Publication Date Title
DE68919419D1 (de) Antenne mit geschlitztem Hohlleiter.
NO885592D0 (no) Transponder-antenne.
IT8720911A0 (it) Antenna per trasmettitore situato a grande profondita'.
DE3684769D1 (de) "diversity"-empfaenger.
DE3883960D1 (de) Mikrostreifenleiterantenne.
DE68919323D1 (de) Mikrostreifenantenne.
DE69014607D1 (de) Gruppenantennen.
FR2602918B1 (fr) Systeme d'antenne
DE3884974D1 (de) Geformte Antennengruppe.
DE68913676D1 (de) Antennensystem mit Richtungsverfolgung.
DE68916881D1 (de) Spursuchvorrichtung.
DE68910728D1 (de) Streifenleiter Array-Antenne.
IT8719088A0 (it) Antenna doppler a guida d'onda scanalata polarizzata circolarmente.
DE68916692D1 (de) Radar-Antwortgerät.
NO880036D0 (no) Antenne.
DE59001458D1 (de) Nichtwaessrige kunststoffzubereitungen.
IT8422052A0 (it) Piccolo commutatore di guide d'onda.
IT8541584A0 (it) Guida d'onda dielettrica a birifrangenza circolare.
IT8820804A0 (it) Guida d'onda dielettrica a birifrangenza circolare.
DE3886642D1 (de) Radar-Transponder.
IT1226349B (it) Elemento ritorto di guida d'onda.
DE3884598D1 (de) Antennenwaehler.
NO890780D0 (no) Antenner.
IT8820803A0 (it) Guida d'onda dielettrica a birifrangenza circolare.
IT8447962A0 (it) Antenna per guida d'onda