SE9002657D0 - ANTENNA - Google Patents

ANTENNA

Info

Publication number
SE9002657D0
SE9002657D0 SE9002657A SE9002657A SE9002657D0 SE 9002657 D0 SE9002657 D0 SE 9002657D0 SE 9002657 A SE9002657 A SE 9002657A SE 9002657 A SE9002657 A SE 9002657A SE 9002657 D0 SE9002657 D0 SE 9002657D0
Authority
SE
Sweden
Prior art keywords
branches
antenna
hybrid coupler
slots
antenna element
Prior art date
Application number
SE9002657A
Other languages
Swedish (sv)
Inventor
J Bouko
Original Assignee
Thomson Csf
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 Thomson Csf filed Critical Thomson Csf
Publication of SE9002657D0 publication Critical patent/SE9002657D0/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
    • H01Q9/0435—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave using two feed points

Abstract

The antenna has an antenna element (10) positioned on a substrate. The element has two orthogonal slots (11,12) which form a cross. On the opposite face, a broadband, symmetrical 90 degree hybrid coupler (20) has two branches which have phases different by one quarter of a wavelength. The branches are coupled respectively to the antenna element slots. At leat one of the branches receives a radiated signal at its input (21,21'). The signal is applied selectively to the hybrid coupler inputs as a function of direction for circular polarisation.
SE9002657A 1989-08-18 1990-08-15 ANTENNA SE9002657D0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8911023A FR2751138A1 (en) 1989-08-18 1989-08-18 Microstrip array antenna

Publications (1)

Publication Number Publication Date
SE9002657D0 true SE9002657D0 (en) 1990-08-15

Family

ID=9384800

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9002657A SE9002657D0 (en) 1989-08-18 1990-08-15 ANTENNA

Country Status (5)

Country Link
CA (1) CA2023481A1 (en)
FR (1) FR2751138A1 (en)
GB (1) GB9017960D0 (en)
IT (2) IT9067524A1 (en)
SE (1) SE9002657D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6515557B1 (en) * 2001-08-13 2003-02-04 Raytheon Company Isolating signal divider/combiner and method of combining signals of first and second frequencies
CN110176662B (en) * 2019-06-03 2021-05-11 南京邮电大学 Broadband compact 180-degree coupler applied to 5G working frequency band

Also Published As

Publication number Publication date
IT9067524A0 (en) 1990-07-11
FR2751138A1 (en) 1998-01-16
IT1277981B1 (en) 1997-11-12
CA2023481A1 (en) 1997-10-12
GB9017960D0 (en) 1997-09-17
IT9067524A1 (en) 1992-01-11

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