EP0688062A3 - Einstellbare Fresnelzonenplatte - Google Patents
Einstellbare Fresnelzonenplatte Download PDFInfo
- Publication number
- EP0688062A3 EP0688062A3 EP95201485A EP95201485A EP0688062A3 EP 0688062 A3 EP0688062 A3 EP 0688062A3 EP 95201485 A EP95201485 A EP 95201485A EP 95201485 A EP95201485 A EP 95201485A EP 0688062 A3 EP0688062 A3 EP 0688062A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- zone plate
- fresnel zone
- adjustable fresnel
- adjustable
- plate
- 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
Links
Classifications
-
- 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
- H01Q19/062—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 for focusing
- H01Q19/065—Zone plate type antennas
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL9400974 | 1994-06-15 | ||
| NL9400974A NL9400974A (nl) | 1994-06-15 | 1994-06-15 | Instelbare Fresnel zoneplaat. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0688062A2 EP0688062A2 (de) | 1995-12-20 |
| EP0688062A3 true EP0688062A3 (de) | 1996-05-15 |
| EP0688062B1 EP0688062B1 (de) | 2001-07-18 |
Family
ID=19864316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19950201485 Expired - Lifetime EP0688062B1 (de) | 1994-06-15 | 1995-06-06 | Einstellbare Fresnelzonenplatte |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0688062B1 (de) |
| DE (1) | DE69521744T2 (de) |
| NL (1) | NL9400974A (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO315397B1 (no) | 2001-11-13 | 2003-08-25 | Sinvent As | Optisk forskyvnings-sensor |
| US7136227B2 (en) | 2004-08-06 | 2006-11-14 | Matsushita Electric Industrial Co., Ltd. | Fresnel zone plate based on elastic materials |
| US7460084B2 (en) | 2005-10-19 | 2008-12-02 | Northrop Grumman Corporation | Radio frequency holographic transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3978484A (en) * | 1975-02-12 | 1976-08-31 | Collier Donald C | Waveguide-tuned phased array antenna |
| EP0331248A1 (de) * | 1988-03-03 | 1989-09-06 | Hollandse Signaalapparaten B.V. | Antennensystem mit verstellbarer Bündelbreite und Bündelrichtung |
| GB2253743A (en) * | 1989-05-12 | 1992-09-16 | Marconi Gec Ltd | Reflectors for electromagnetic radiation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4905014A (en) | 1988-04-05 | 1990-02-27 | Malibu Research Associates, Inc. | Microwave phasing structures for electromagnetically emulating reflective surfaces and focusing elements of selected geometry |
-
1994
- 1994-06-15 NL NL9400974A patent/NL9400974A/nl not_active Application Discontinuation
-
1995
- 1995-06-06 DE DE1995621744 patent/DE69521744T2/de not_active Expired - Fee Related
- 1995-06-06 EP EP19950201485 patent/EP0688062B1/de not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3978484A (en) * | 1975-02-12 | 1976-08-31 | Collier Donald C | Waveguide-tuned phased array antenna |
| EP0331248A1 (de) * | 1988-03-03 | 1989-09-06 | Hollandse Signaalapparaten B.V. | Antennensystem mit verstellbarer Bündelbreite und Bündelrichtung |
| US5063389A (en) * | 1988-03-03 | 1991-11-05 | Hollandse Signaalapparaten B.V. | Antenna system with adjustable beam width and beam orientation |
| GB2253743A (en) * | 1989-05-12 | 1992-09-16 | Marconi Gec Ltd | Reflectors for electromagnetic radiation |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69521744T2 (de) | 2002-05-23 |
| NL9400974A (nl) | 1996-01-02 |
| DE69521744D1 (de) | 2001-08-23 |
| EP0688062B1 (de) | 2001-07-18 |
| EP0688062A2 (de) | 1995-12-20 |
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Legal Events
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