GB2234118B - Hologram Having Distincive Microwave Holographic Return - Google Patents

Hologram Having Distincive Microwave Holographic Return

Info

Publication number
GB2234118B
GB2234118B GB9011470A GB9011470A GB2234118B GB 2234118 B GB2234118 B GB 2234118B GB 9011470 A GB9011470 A GB 9011470A GB 9011470 A GB9011470 A GB 9011470A GB 2234118 B GB2234118 B GB 2234118B
Authority
GB
United Kingdom
Prior art keywords
distincive
hologram
return
microwave holographic
holographic
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
GB9011470A
Other versions
GB9011470D0 (en
GB2234118A (en
Inventor
Stephen William Bell
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9011470D0 publication Critical patent/GB9011470D0/en
Publication of GB2234118A publication Critical patent/GB2234118A/en
Application granted granted Critical
Publication of GB2234118B publication Critical patent/GB2234118B/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
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • 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
    • H01Q19/067—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 using a hologram

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Holo Graphy (AREA)
GB9011470A 1989-05-23 1990-05-23 Hologram Having Distincive Microwave Holographic Return Expired - Fee Related GB2234118B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898911788A GB8911788D0 (en) 1989-05-23 1989-05-23 Radar

Publications (3)

Publication Number Publication Date
GB9011470D0 GB9011470D0 (en) 1990-07-11
GB2234118A GB2234118A (en) 1991-01-23
GB2234118B true GB2234118B (en) 1994-02-09

Family

ID=10657186

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898911788A Pending GB8911788D0 (en) 1989-05-23 1989-05-23 Radar
GB9011470A Expired - Fee Related GB2234118B (en) 1989-05-23 1990-05-23 Hologram Having Distincive Microwave Holographic Return

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898911788A Pending GB8911788D0 (en) 1989-05-23 1989-05-23 Radar

Country Status (1)

Country Link
GB (2) GB8911788D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2270204B (en) * 1992-08-28 1996-02-07 Plessey Semiconductors Ltd Antenna arrangements
US7460084B2 (en) 2005-10-19 2008-12-02 Northrop Grumman Corporation Radio frequency holographic transformer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195244A1 (en) * 1985-02-13 1986-09-24 Grumman Aerospace Corporation Aircraft skin antenna

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195244A1 (en) * 1985-02-13 1986-09-24 Grumman Aerospace Corporation Aircraft skin antenna

Also Published As

Publication number Publication date
GB9011470D0 (en) 1990-07-11
GB8911788D0 (en) 1989-09-20
GB2234118A (en) 1991-01-23

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Legal Events

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

Effective date: 19950523