GB2315600B - Frequency selective structure - Google Patents

Frequency selective structure

Info

Publication number
GB2315600B
GB2315600B GB9116018A GB9116018A GB2315600B GB 2315600 B GB2315600 B GB 2315600B GB 9116018 A GB9116018 A GB 9116018A GB 9116018 A GB9116018 A GB 9116018A GB 2315600 B GB2315600 B GB 2315600B
Authority
GB
United Kingdom
Prior art keywords
layers
frequency selective
conducting layers
dielectric layer
thickness
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
GB9116018A
Other versions
GB2315600A (en
GB9116018D0 (en
Inventor
John Gerard Gallagher
Andrew James Mackay
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 GBGB9018262.7A external-priority patent/GB9018262D0/en
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB9116018A priority Critical patent/GB2315600B/en
Publication of GB9116018D0 publication Critical patent/GB9116018D0/en
Publication of GB2315600A publication Critical patent/GB2315600A/en
Application granted granted Critical
Publication of GB2315600B publication Critical patent/GB2315600B/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
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
    • H01Q15/0026—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective said selective devices having a stacked geometry or having multiple layers

Abstract

The structure (10) incorporates first and second conducting layers (12,16) and an interleaving dielectric layer (14). The conducting layers (12,16) have periodically arranged slots (18,20) through their thickness. The layers are arranged such that the slots (18,20) do not overlap when viewed perpendicular to the layers (12,14,16). The thickness of the dielectric layer (14) is very much smaller than a wavelength of radiation at the transmission frequency of the structure. Consequently, significant evanescent coupling occurs between the two conducting layers (12,16). The frequency selective structure (10) exhibits radiation transmission over a narrow bandwidth, and transmission characteristics are relatively unaffected by incidence angle or polarization.
GB9116018A 1990-08-20 1991-07-25 Frequency selective structure Expired - Fee Related GB2315600B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9116018A GB2315600B (en) 1990-08-20 1991-07-25 Frequency selective structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9018262.7A GB9018262D0 (en) 1990-08-20 1990-08-20 Frequency selective structure
GB9116018A GB2315600B (en) 1990-08-20 1991-07-25 Frequency selective structure

Publications (3)

Publication Number Publication Date
GB9116018D0 GB9116018D0 (en) 1997-12-24
GB2315600A GB2315600A (en) 1998-02-04
GB2315600B true GB2315600B (en) 1998-05-13

Family

ID=26297536

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9116018A Expired - Fee Related GB2315600B (en) 1990-08-20 1991-07-25 Frequency selective structure

Country Status (1)

Country Link
GB (1) GB2315600B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2404087A (en) 2003-07-18 2005-01-19 Qinetiq Ltd Electromagnetic radiation absorber
US9362615B2 (en) * 2012-10-25 2016-06-07 Raytheon Company Multi-bandpass, dual-polarization radome with embedded gridded structures
US9231299B2 (en) * 2012-10-25 2016-01-05 Raytheon Company Multi-bandpass, dual-polarization radome with compressed grid
CN104934719A (en) * 2014-03-18 2015-09-23 深圳光启创新技术有限公司 Bandstop wave-transparent metamaterial, antenna cover and antenna system
RU2652169C1 (en) 2017-05-25 2018-04-25 Самсунг Электроникс Ко., Лтд. Antenna unit for a telecommunication device and a telecommunication device

Also Published As

Publication number Publication date
GB2315600A (en) 1998-02-04
GB9116018D0 (en) 1997-12-24

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100725