GB2185636B - Antennas - Google Patents

Antennas

Info

Publication number
GB2185636B
GB2185636B GB8700869A GB8700869A GB2185636B GB 2185636 B GB2185636 B GB 2185636B GB 8700869 A GB8700869 A GB 8700869A GB 8700869 A GB8700869 A GB 8700869A GB 2185636 B GB2185636 B GB 2185636B
Authority
GB
Grant status
Grant
Patent type
Prior art keywords
antennas
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.)
Expired
Application number
GB8700869A
Other versions
GB8700869D0 (en )
GB2185636A (en )
Inventor
Geoffrey Martin White
Kevin Richard Davies
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.)
Racal Antennas Ltd
Original Assignee
Racal Antennas 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
Grant date

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10Resonant slot antennas
    • H01Q13/18Resonant slot antennas the slot being backed by, or formed in boundary wall of, a resonant cavity ; Open cavity antennas
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/24Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
GB8700869A 1986-01-15 1987-01-15 Antennas Expired GB2185636B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8600868 1986-01-15

Publications (3)

Publication Number Publication Date
GB8700869D0 true GB8700869D0 (en) 1987-02-18
GB2185636A true GB2185636A (en) 1987-07-22
GB2185636B true GB2185636B (en) 1989-10-25

Family

ID=10591388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8700869A Expired GB2185636B (en) 1986-01-15 1987-01-15 Antennas

Country Status (1)

Country Link
GB (1) GB2185636B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2775127A1 (en) * 1998-02-17 1999-08-20 Tekelec Temex Isolated slab antenna construction

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB708008A (en) * 1951-06-20 1954-04-28 Nat Res Dev Improvements in or relating to folded slot aerials
GB1378356A (en) * 1973-01-02 1974-12-27 Ball Brothers Res Corp Dual slot antenna device
GB1378355A (en) * 1970-12-18 1974-12-27 Ball Brothers Res Corp Antenna assembly
US3971032A (en) * 1975-08-25 1976-07-20 Ball Brothers Research Corporation Dual frequency microstrip antenna structure
GB1574196A (en) * 1977-04-01 1980-09-03 Ball Corp Microstrip radiator with folded resonant cavity
GB2152757A (en) * 1984-01-05 1985-08-07 Plessey Co Plc Antenna

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB708008A (en) * 1951-06-20 1954-04-28 Nat Res Dev Improvements in or relating to folded slot aerials
GB1378355A (en) * 1970-12-18 1974-12-27 Ball Brothers Res Corp Antenna assembly
GB1378356A (en) * 1973-01-02 1974-12-27 Ball Brothers Res Corp Dual slot antenna device
US3971032A (en) * 1975-08-25 1976-07-20 Ball Brothers Research Corporation Dual frequency microstrip antenna structure
GB1574196A (en) * 1977-04-01 1980-09-03 Ball Corp Microstrip radiator with folded resonant cavity
GB2152757A (en) * 1984-01-05 1985-08-07 Plessey Co Plc Antenna

Also Published As

Publication number Publication date Type
GB8700869D0 (en) 1987-02-18 application
GB2185636A (en) 1987-07-22 application

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950115