NL8715005A - Verbeteringen aan of met betrekking tot spiraalantennes. - Google Patents
Verbeteringen aan of met betrekking tot spiraalantennes. Download PDFInfo
- Publication number
- NL8715005A NL8715005A NL8715005A NL8715005A NL8715005A NL 8715005 A NL8715005 A NL 8715005A NL 8715005 A NL8715005 A NL 8715005A NL 8715005 A NL8715005 A NL 8715005A NL 8715005 A NL8715005 A NL 8715005A
- Authority
- NL
- Netherlands
- Prior art keywords
- pair
- arms
- antenna
- coupled
- arm spiral
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- PSGAAPLEWMOORI-PEINSRQWSA-N medroxyprogesterone acetate Chemical compound C([C@@]12C)CC(=O)C=C1[C@@H](C)C[C@@H]1[C@@H]2CC[C@]2(C)[C@@](OC(C)=O)(C(C)=O)CC[C@H]21 PSGAAPLEWMOORI-PEINSRQWSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
- H01Q9/27—Spiral antennas
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radar Systems Or Details Thereof (AREA)
- Details Of Aerials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8608970 | 1986-04-12 | ||
| GB8608970A GB2207556B (en) | 1986-04-12 | 1986-04-12 | Improvements in or relating to spiral antennas. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8715005A true NL8715005A (nl) | 1989-04-03 |
Family
ID=10596117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8715005A NL8715005A (nl) | 1986-04-12 | 1987-04-13 | Verbeteringen aan of met betrekking tot spiraalantennes. |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE3739205A1 (sv) |
| FR (1) | FR2627016A1 (sv) |
| GB (1) | GB2207556B (sv) |
| IT (1) | IT1233844B (sv) |
| NL (1) | NL8715005A (sv) |
| SE (1) | SE8800463L (sv) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19929879A1 (de) * | 1999-06-29 | 2001-01-18 | Bosch Gmbh Robert | Spiralantenne |
| DE10108993B4 (de) | 2001-02-23 | 2004-12-16 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur Bestimmung des Füllstandes eines Füllguts in einem Behälter |
| DE202013002682U1 (de) | 2013-03-20 | 2013-04-26 | Cetecom Gmbh | Zirkular polarisierte Breitbandantenne und Anordnung derselben in einem reflektionsarmen Raum |
| DE102013004774B3 (de) * | 2013-03-20 | 2014-09-25 | Cetecom Gmbh | Zirkular polarisierte Breitbandantenne und Anordnung derselben in einem reflektionsarmen Raum |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3344425A (en) * | 1966-06-13 | 1967-09-26 | James E Webb | Monopulse tracking system |
| US3949407A (en) * | 1972-12-25 | 1976-04-06 | Harris Corporation | Direct fed spiral antenna |
| DE2452703A1 (de) * | 1974-11-06 | 1976-05-13 | Harris Corp | Antenne |
| US4315266A (en) * | 1980-07-25 | 1982-02-09 | Nasa | Spiral slotted phased antenna array |
| US4396921A (en) * | 1981-10-30 | 1983-08-02 | Raytheon Company | Matching section for multi-arm spiral antenna |
-
1986
- 1986-04-12 GB GB8608970A patent/GB2207556B/en not_active Expired
-
1987
- 1987-04-13 NL NL8715005A patent/NL8715005A/nl not_active Application Discontinuation
- 1987-04-13 DE DE19873739205 patent/DE3739205A1/de not_active Withdrawn
- 1987-11-04 FR FR8715402A patent/FR2627016A1/fr active Pending
-
1988
- 1988-01-20 IT IT8819128A patent/IT1233844B/it active
- 1988-02-11 SE SE8800463A patent/SE8800463L/sv not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| IT8819128A0 (it) | 1988-01-20 |
| GB2207556A (en) | 1989-02-01 |
| GB2207556B (en) | 1989-11-29 |
| DE3739205A1 (de) | 1989-06-01 |
| IT1233844B (it) | 1992-04-21 |
| SE8800463L (sv) | 1989-03-10 |
| SE8800463D0 (sv) | 1988-02-11 |
| FR2627016A1 (sv) | 1989-08-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CNR | Transfer of rights (patent application after its laying open for public inspection) |
Free format text: GEC-MARCONI LIMITED |
|
| BV | The patent application has lapsed |