GB0505398D0 - Applications of a three-dimensional periodic structure - Google Patents

Applications of a three-dimensional periodic structure

Info

Publication number
GB0505398D0
GB0505398D0 GBGB0505398.8A GB0505398A GB0505398D0 GB 0505398 D0 GB0505398 D0 GB 0505398D0 GB 0505398 A GB0505398 A GB 0505398A GB 0505398 D0 GB0505398 D0 GB 0505398D0
Authority
GB
United Kingdom
Prior art keywords
periodic structure
dimensional periodic
substance
applications
dimensional
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.)
Granted
Application number
GBGB0505398.8A
Other versions
GB2409585B (en
GB2409585A (en
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co 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
Priority claimed from JP2002166837A external-priority patent/JP2004015483A/en
Priority claimed from JP2002166836A external-priority patent/JP2004012850A/en
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority claimed from GB0312952A external-priority patent/GB2390230B/en
Publication of GB0505398D0 publication Critical patent/GB0505398D0/en
Publication of GB2409585A publication Critical patent/GB2409585A/en
Application granted granted Critical
Publication of GB2409585B publication Critical patent/GB2409585B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/2005—Electromagnetic photonic bandgaps [EPB], or photonic bandgaps [PBG]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/207—Hollow waveguide filters
    • H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • H01P1/2138—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using hollow waveguide filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • 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
    • H01Q15/006—Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Waveguides (AREA)

Abstract

A waveguide is disclosed which comprises a three-dimensional periodic structure. The three-dimensional periodic structure has a first substance, with a first dielectric constant, which occupies a three-dimensional space. The first substance defines a lattice structure having a plurality of air holes, and a second substance is disposed within one or more of the air holes. By distributing the pieces of the second substance in the lattice of the three-dimensional periodic structure, the three-dimensional periodic structure can have transmission and blocking characteristics in different frequency bands depending on the distribution of the pieces.
GB0505398A 2002-06-07 2003-06-05 Applications of a three-dimensional periodic structure Expired - Lifetime GB2409585B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002166837A JP2004015483A (en) 2002-06-07 2002-06-07 Three-dimensional periodic structure, method for manufacturing the same, high-frequency element, and high-frequency device
JP2002166836A JP2004012850A (en) 2002-06-07 2002-06-07 Three-dimensional periodic structure, method for manufacturing the same, high-frequency element, and high-frequency system
GB0312952A GB2390230B (en) 2002-06-07 2003-06-05 Applications of a three dimensional structure

Publications (3)

Publication Number Publication Date
GB0505398D0 true GB0505398D0 (en) 2005-04-20
GB2409585A GB2409585A (en) 2005-06-29
GB2409585B GB2409585B (en) 2005-08-31

Family

ID=34657577

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0505398A Expired - Lifetime GB2409585B (en) 2002-06-07 2003-06-05 Applications of a three-dimensional periodic structure
GB0505407A Expired - Lifetime GB2409586B (en) 2002-06-07 2003-06-05 Applications of a three-dimensional periodic structure

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0505407A Expired - Lifetime GB2409586B (en) 2002-06-07 2003-06-05 Applications of a three-dimensional periodic structure

Country Status (1)

Country Link
GB (2) GB2409585B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116666924B (en) * 2023-07-27 2023-10-13 南京邮电大学 Three-dimensional waveguide type power selection structure

Also Published As

Publication number Publication date
GB2409586B (en) 2005-08-31
GB2409585B (en) 2005-08-31
GB2409585A (en) 2005-06-29
GB2409586A (en) 2005-06-29
GB0505407D0 (en) 2005-04-20

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20230604