GB2236019B - Microwave focussing device - Google Patents

Microwave focussing device

Info

Publication number
GB2236019B
GB2236019B GB9019031A GB9019031A GB2236019B GB 2236019 B GB2236019 B GB 2236019B GB 9019031 A GB9019031 A GB 9019031A GB 9019031 A GB9019031 A GB 9019031A GB 2236019 B GB2236019 B GB 2236019B
Authority
GB
United Kingdom
Prior art keywords
focussing device
microwave
microwave focussing
focussing
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 - Fee Related
Application number
GB9019031A
Other versions
GB9019031D0 (en
GB2236019A (en
Inventor
David Raymond Goodall
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.)
Pilkington Group Ltd
Original Assignee
Pilkington PLC
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
Priority claimed from GB898920836A external-priority patent/GB8920836D0/en
Application filed by Pilkington PLC filed Critical Pilkington PLC
Priority to GB9019031A priority Critical patent/GB2236019B/en
Publication of GB9019031D0 publication Critical patent/GB9019031D0/en
Publication of GB2236019A publication Critical patent/GB2236019A/en
Application granted granted Critical
Publication of GB2236019B publication Critical patent/GB2236019B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
    • H01Q19/062—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens for focusing
    • H01Q19/065—Zone plate type antennas
GB9019031A 1989-09-14 1990-08-31 Microwave focussing device Expired - Fee Related GB2236019B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9019031A GB2236019B (en) 1989-09-14 1990-08-31 Microwave focussing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898920836A GB8920836D0 (en) 1989-09-14 1989-09-14 Focussing device
GB9019031A GB2236019B (en) 1989-09-14 1990-08-31 Microwave focussing device

Publications (3)

Publication Number Publication Date
GB9019031D0 GB9019031D0 (en) 1990-10-17
GB2236019A GB2236019A (en) 1991-03-20
GB2236019B true GB2236019B (en) 1994-05-11

Family

ID=26295922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9019031A Expired - Fee Related GB2236019B (en) 1989-09-14 1990-08-31 Microwave focussing device

Country Status (1)

Country Link
GB (1) GB2236019B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243490B (en) * 1990-03-02 1994-06-29 Pilkington Glass Ltd Coated glass
GB9015159D0 (en) * 1990-07-10 1990-08-29 Mawzones Dev A phase correcting reflection zone plate for focusing microwaves
GB2278020A (en) * 1993-04-02 1994-11-16 Nigel Frewin Antenna
NL9400863A (en) * 1994-05-26 1996-01-02 Hollandse Signaalapparaten Bv Adjustable microwave antenna
DE69523976T2 (en) * 1994-04-29 2002-05-29 Thales Nederland Bv Microwave antenna with adjustable radiation characteristics
US6473048B1 (en) 1998-11-03 2002-10-29 Arizona Board Of Regents Frequency selective microwave devices using narrowband metal materials
DE60103484T2 (en) 2000-12-07 2005-06-02 Asahi Glass Co., Ltd. A method of making an antenna with reduced effect of multipath reflections
FI113222B (en) * 2001-01-12 2004-03-15 Oorninki Ohjelmistot Oy Antenna arrangement
EP1880442A1 (en) * 2005-05-03 2008-01-23 Carlsberg Breweries A/S A packaging object having a rfid tag

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988010521A1 (en) * 1987-06-16 1988-12-29 Thomas Michael Benyon Wright Collapsible receiving antenna
WO1990007199A1 (en) * 1988-12-20 1990-06-28 Mawzones Developments Limited Focussing device for a microwave antenna

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988010521A1 (en) * 1987-06-16 1988-12-29 Thomas Michael Benyon Wright Collapsible receiving antenna
WO1990007199A1 (en) * 1988-12-20 1990-06-28 Mawzones Developments Limited Focussing device for a microwave antenna

Also Published As

Publication number Publication date
GB9019031D0 (en) 1990-10-17
GB2236019A (en) 1991-03-20

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Legal Events

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

Effective date: 19980831