GB0126737D0 - Filter - Google Patents

Filter

Info

Publication number
GB0126737D0
GB0126737D0 GB0126737A GB0126737A GB0126737D0 GB 0126737 D0 GB0126737 D0 GB 0126737D0 GB 0126737 A GB0126737 A GB 0126737A GB 0126737 A GB0126737 A GB 0126737A GB 0126737 D0 GB0126737 D0 GB 0126737D0
Authority
GB
United Kingdom
Prior art keywords
layers
filter
teeth
frequency
dielectric constant
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.)
Ceased
Application number
GB0126737A
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.)
University of Glasgow
Original Assignee
University of Glasgow
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 University of Glasgow filed Critical University of Glasgow
Priority to GB0126737A priority Critical patent/GB0126737D0/en
Publication of GB0126737D0 publication Critical patent/GB0126737D0/en
Priority to PCT/GB2002/005037 priority patent/WO2003041223A1/en
Priority to GB0226050A priority patent/GB2381957B/en
Ceased legal-status Critical Current

Links

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

There is disclosed a filter device 10 for electromagnetic radiation which is tunable across a wide range of the e-m spectrum, eg 30 GHz to 100 THz. The filter device 10 comprises at least two layers of material 6a-c; the layers 6a-c being spaced apart by a medium have a lower dielectric constant and/or electrical conductivity than a dielectric constant and/or electrical conductivity of the material; each layer 6a-c comprising a plurality of teeth 2,4 disposed in a substantially common plane; the layers 6a-c being stacked such that the teeth 2,4 of adjacent wafers interleave. The filter can be tuned for frequency of stopband, width of stop band, and the frequency of a narrow transmission peak.
GB0126737A 2001-11-07 2001-11-07 Filter Ceased GB0126737D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0126737A GB0126737D0 (en) 2001-11-07 2001-11-07 Filter
PCT/GB2002/005037 WO2003041223A1 (en) 2001-11-07 2002-11-07 Filter device
GB0226050A GB2381957B (en) 2001-11-07 2002-11-07 Filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0126737A GB0126737D0 (en) 2001-11-07 2001-11-07 Filter

Publications (1)

Publication Number Publication Date
GB0126737D0 true GB0126737D0 (en) 2002-01-02

Family

ID=9925332

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0126737A Ceased GB0126737D0 (en) 2001-11-07 2001-11-07 Filter
GB0226050A Expired - Fee Related GB2381957B (en) 2001-11-07 2002-11-07 Filter device

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0226050A Expired - Fee Related GB2381957B (en) 2001-11-07 2002-11-07 Filter device

Country Status (2)

Country Link
GB (2) GB0126737D0 (en)
WO (1) WO2003041223A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3047466A1 (en) * 1980-12-17 1982-07-22 Standard Elektrik Lorenz Ag, 7000 Stuttgart Filter with interdigitated resonators - has two metal plates forming cylindrical outer conductor with adjustable inner conductor sections
GB2278021B (en) * 1990-09-07 1995-04-19 Univ Loughborough Waveguide
US5689275A (en) * 1995-05-16 1997-11-18 Georgia Tech Research Corporation Electromagnetic antenna and transmission line utilizing photonic bandgap material
FR2801428B1 (en) * 1999-11-18 2004-10-15 Centre Nat Rech Scient ANTENNA PROVIDED WITH AN ASSEMBLY OF FILTER MATERIALS
US6323826B1 (en) * 2000-03-28 2001-11-27 Hrl Laboratories, Llc Tunable-impedance spiral

Also Published As

Publication number Publication date
GB2381957B (en) 2004-02-11
GB2381957A (en) 2003-05-14
WO2003041223A1 (en) 2003-05-15
GB0226050D0 (en) 2002-12-18

Similar Documents

Publication Publication Date Title
Lin et al. Single, dual and tri-band-notched ultrawideband (UWB) antennas using capacitively loaded loop (CLL) resonators
Hong et al. An optimum ultra‐wideband microstrip filter
US20040239451A1 (en) Electromagnetic band gap microwave filter
DE2443173A1 (en) MICROWAVE DEVICE
GB2346486B (en) Antenna arrangements
KR100897864B1 (en) Power divider using coupling
CA2148341C (en) Method and structure for high power hts transmission lines using strips separated by a gap
US10522896B2 (en) Embedded directional couplers and related methods
GB2381957B (en) Filter device
KR101928440B1 (en) Tunable terahertz metamaterial filter
RU2677103C1 (en) Microstrip low-pass filter
Iqubal et al. Bandpass filter based on asymmetric funnel shaped resonators with ultra wide upper stopband characteristics
Elfergani et al. Slotted Printed Monopole UWB Antennas with Tuneable Rejection Bands for WLAN/WiMAX and X-Band Coexistence
He et al. A tri-band highly selective passband frequency selective surface based on multi-layer coupling
Chun et al. Tunable slotted ground structured bandstop filter with BST varactors
CA1194159A (en) Low pass filters with finite transmission zeros in evanescent modes
Kuylenstierna et al. Tunable electromagnetic bandgap performance of coplanar waveguides periodically loaded by ferroelectric varactors
Nishamol et al. Dual frequency reconfigurable microstrip antenna using varactor diodes
Valizade et al. An ultra-wideband band-pass filter with band-notch performance based on meander embedded open-circuited stub structure
AU758158B2 (en) Inverted microstrip transmisson line integrated in a multilayer structure
AU1334699A (en) Polarizer and method for manufacturing the same
CN101159349A (en) Reflection-type bandpass filter
Chatterjee et al. A dual-layer reflective Frequency Selective Surface for wideband applications
SE9802584D0 (en) A switchable low-pass filter
Lee et al. Wideband crossed planar monopole antenna with the band‐notched characteristic

Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)