FR50002E - Improvements to t.s.f. - Google Patents
Improvements to t.s.f.Info
- Publication number
- FR50002E FR50002E FR50002DA FR50002E FR 50002 E FR50002 E FR 50002E FR 50002D A FR50002D A FR 50002DA FR 50002 E FR50002 E FR 50002E
- Authority
- FR
- France
- 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.)
- Expired
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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR50002T | 1938-06-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR50002E true FR50002E (en) | 1939-11-10 |
Family
ID=8685066
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR833239D Expired FR833239A (en) | 1938-06-08 | 1937-06-10 | Improvements to the t antennas. s. f. |
FR50002D Expired FR50002E (en) | 1938-06-08 | 1938-06-08 | Improvements to t.s.f. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR833239D Expired FR833239A (en) | 1938-06-08 | 1937-06-10 | Improvements to the t antennas. s. f. |
Country Status (3)
Country | Link |
---|---|
US (1) | US2285669A (en) |
FR (2) | FR833239A (en) |
GB (1) | GB500162A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2566491A (en) * | 1946-03-15 | 1951-09-04 | Belmont Radio Corp | Antenna construction |
US2994876A (en) * | 1957-01-14 | 1961-08-01 | Bengt Adolf Samuel Josephson | Ultrashortwave antenna |
US2971192A (en) * | 1957-11-12 | 1961-02-07 | Itt | Wideband folded monopole antenna |
US3295137A (en) * | 1964-09-08 | 1966-12-27 | Collins Radio Co | Shortened folded monopole with radiation efficiency increased by ferrite loading |
DE1291803B (en) * | 1965-01-04 | 1969-04-03 | Blankenburg Antennen | Logarithmic-periodic dipole antenna |
US3806795A (en) * | 1972-01-03 | 1974-04-23 | Geophysical Survey Sys Inc | Geophysical surveying system employing electromagnetic impulses |
US4028707A (en) * | 1974-01-30 | 1977-06-07 | The Ohio State University | Antenna for underground pipe detector |
US4423423A (en) * | 1980-09-09 | 1983-12-27 | L. Barker & Williamson, Inc. | Broad bandwidth folded dipole antenna |
US5189432A (en) * | 1991-08-15 | 1993-02-23 | Harris Corporation | Radiating antenna cable apparatus |
US5892484A (en) * | 1996-10-30 | 1999-04-06 | Amplifier Research Corporation | E-field generator |
ITFI980103A1 (en) * | 1998-05-04 | 1998-08-04 | Giovannini Elettromeccanica Di | SUPER COMPACT RECEIVING AND TRANSMITTING ANTENNA WITH CONTINUOUS COVERING FROM 1, 5 TO 200 MHZ, WITHOUT THE USE OF TUNERS OF ANY KIND OR NATURE, WITHOUT THE USE OF REMOTE CONTROL SYSTEMS OF ANY KIND OR NATURE TO CHANGE FREQUENCY IN THE S |
-
1937
- 1937-06-10 FR FR833239D patent/FR833239A/en not_active Expired
-
1938
- 1938-06-04 US US211860A patent/US2285669A/en not_active Expired - Lifetime
- 1938-06-08 FR FR50002D patent/FR50002E/en not_active Expired
- 1938-06-10 GB GB17335/38A patent/GB500162A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2285669A (en) | 1942-06-09 |
GB500162A (en) | 1939-02-03 |
FR833239A (en) | 1938-10-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR50002E (en) | Improvements to t.s.f. | |
FR846769A (en) | Wheel improvements | |
FR857981A (en) | Improvements to thermostats | |
FR50159E (en) | Improvements to t.s.f. | |
FR846834A (en) | Improvements to t.s.f. | |
FR835904A (en) | Improvements relating to bicycles | |
CH209305A (en) | Kötzerspulmaschine. | |
FR49730E (en) | Improvements to t.s.f. | |
FR850091A (en) | Vélocimanes improvements | |
FR840932A (en) | Powder-sulfur improvements | |
FR50924E (en) | Improvements to t.s.f. | |
FR853990A (en) | Improvements made to bearings | |
FR860786A (en) | Improvements to containers | |
FR853785A (en) | Enhancements to t receptors. s. f. | |
FR860286A (en) | Improvements to the slabs | |
CH203845A (en) | Teleferica monofune. | |
CH208727A (en) | Kötzerspulmaschine. | |
FR848948A (en) | Improvements to mower-harvesters | |
FR842625A (en) | Improvements to espadrilles | |
FR873101A (en) | Improvements to radiogonioneters | |
FR852743A (en) | Improvements to braking mechanisms | |
FR850283A (en) | Improvements to containers | |
FR925646A (en) | Improvements to tuber harvesters | |
ES144099A1 (en) | Motorcycle improvements. | |
FR854404A (en) | Improvements to filing lockers |