NL219987A - - Google Patents
Info
- Publication number
- NL219987A NL219987A NL219987DA NL219987A NL 219987 A NL219987 A NL 219987A NL 219987D A NL219987D A NL 219987DA NL 219987 A NL219987 A NL 219987A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE351309X | 1956-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL219987A true NL219987A (de) |
Family
ID=6267791
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL102440D NL102440C (de) | 1956-08-18 | ||
| NL219987D NL219987A (de) | 1956-08-18 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL102440D NL102440C (de) | 1956-08-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2952850A (de) |
| CH (1) | CH351309A (de) |
| FR (1) | FR1181273A (de) |
| NL (2) | NL219987A (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3683393A (en) * | 1970-07-06 | 1972-08-08 | Electrotec Corp | Helical dipole antenna |
| US4427984A (en) | 1981-07-29 | 1984-01-24 | General Electric Company | Phase-variable spiral antenna and steerable arrays thereof |
| US20100103053A1 (en) * | 2008-10-27 | 2010-04-29 | Intermec Ip Corp. | Circularly polarized antenna |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2246151A (en) * | 1939-05-24 | 1941-06-17 | Locke Insulator Corp | Tower antenna |
| US2405123A (en) * | 1943-08-07 | 1946-08-06 | Gen Electric | Antenna system |
| US2763003A (en) * | 1953-07-01 | 1956-09-11 | Edward F Harris | Helical antenna construction |
-
0
- NL NL102440D patent/NL102440C/xx active
- NL NL219987D patent/NL219987A/xx unknown
-
1957
- 1957-08-07 US US676822A patent/US2952850A/en not_active Expired - Lifetime
- 1957-08-13 CH CH351309D patent/CH351309A/de unknown
- 1957-08-17 FR FR1181273D patent/FR1181273A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL102440C (de) | |
| CH351309A (de) | 1961-01-15 |
| FR1181273A (fr) | 1959-06-12 |
| US2952850A (en) | 1960-09-13 |