IT8819128A0 - Perfezionamenti in, o relativi ad antenne a spirale - Google Patents
Perfezionamenti in, o relativi ad antenne a spiraleInfo
- Publication number
- IT8819128A0 IT8819128A0 IT8819128A IT1912888A IT8819128A0 IT 8819128 A0 IT8819128 A0 IT 8819128A0 IT 8819128 A IT8819128 A IT 8819128A IT 1912888 A IT1912888 A IT 1912888A IT 8819128 A0 IT8819128 A0 IT 8819128A0
- Authority
- IT
- Italy
- Prior art keywords
- relating
- spiral antennas
- antennas
- spiral
- Prior art date
Links
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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8608970A GB2207556B (en) | 1986-04-12 | 1986-04-12 | Improvements in or relating to spiral antennas. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8819128A0 true IT8819128A0 (it) | 1988-01-20 |
IT1233844B IT1233844B (it) | 1992-04-21 |
Family
ID=10596117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8819128A IT1233844B (it) | 1986-04-12 | 1988-01-20 | Perfezionamenti in, o relativi ad antenne a spirale |
Country Status (6)
Country | Link |
---|---|
DE (1) | DE3739205A1 (it) |
FR (1) | FR2627016A1 (it) |
GB (1) | GB2207556B (it) |
IT (1) | IT1233844B (it) |
NL (1) | NL8715005A (it) |
SE (1) | SE8800463L (it) |
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 DE DE19873739205 patent/DE3739205A1/de not_active Withdrawn
- 1987-04-13 NL NL8715005A patent/NL8715005A/nl not_active Application Discontinuation
- 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/ not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
FR2627016A1 (it) | 1989-08-11 |
SE8800463L (sv) | 1989-03-10 |
DE3739205A1 (de) | 1989-06-01 |
GB2207556B (en) | 1989-11-29 |
NL8715005A (nl) | 1989-04-03 |
GB2207556A (en) | 1989-02-01 |
SE8800463D0 (sv) | 1988-02-11 |
IT1233844B (it) | 1992-04-21 |
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