GB0126737D0 - Filter - Google Patents
FilterInfo
- 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
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.
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)
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 |
-
2001
- 2001-11-07 GB GB0126737A patent/GB0126737D0/en not_active Ceased
-
2002
- 2002-11-07 GB GB0226050A patent/GB2381957B/en not_active Expired - Fee Related
- 2002-11-07 WO PCT/GB2002/005037 patent/WO2003041223A1/en not_active Application Discontinuation
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 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AT | Applications terminated before publication under section 16(1) |