NL40293C - - Google Patents
Info
- Publication number
- NL40293C NL40293C NL40293DA NL40293C NL 40293 C NL40293 C NL 40293C NL 40293D A NL40293D A NL 40293DA NL 40293 C NL40293 C NL 40293C
- Authority
- NL
- Netherlands
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
- H01Q19/10—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 reflecting surfaces
- H01Q19/12—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 reflecting surfaces wherein the surfaces are concave
- H01Q19/13—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 reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/68—Tubes specially designed to act as oscillator with positive grid and retarding field, e.g. for Barkhausen-Kurz oscillators
- H01J25/70—Tubes specially designed to act as oscillator with positive grid and retarding field, e.g. for Barkhausen-Kurz oscillators with resonator having distributed inductance with capacitance, e.g. Pintsch tube
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE433026X | 1934-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL40293C true NL40293C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=6497069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL40293D NL40293C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1934-03-03 |
Country Status (4)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2558727A (en) * | 1942-07-01 | 1951-07-03 | Edwin J Bernet | Antenna |
| US2539477A (en) * | 1945-01-24 | 1951-01-30 | Rines Robert Harvey | Portable radio telephone |
| US2555123A (en) * | 1945-03-22 | 1951-05-29 | John H Gardner | Directional antenna |
| US2594871A (en) * | 1945-07-09 | 1952-04-29 | Us Sec War | Antenna |
| US2501070A (en) * | 1945-08-01 | 1950-03-21 | Us Sec War | Antenna |
| US2600274A (en) * | 1945-10-10 | 1952-06-10 | Sichak William | Antenna |
| US2505751A (en) * | 1946-09-27 | 1950-05-02 | John T Bolljahn | Broad band antenna |
| US2503278A (en) * | 1947-03-21 | 1950-04-11 | Raytheon Mfg Co | Energy radiation apparatus |
| US3178713A (en) * | 1961-03-08 | 1965-04-13 | Andrew Corp | Parabolic antenna formed of curved spaced rods |
-
0
- NL NL40293D patent/NL40293C/xx active
-
1935
- 1935-02-26 GB GB6178/35A patent/GB433026A/en not_active Expired
- 1935-02-28 FR FR786417D patent/FR786417A/fr not_active Expired
- 1935-03-01 US US8939A patent/US2061508A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB433026A (en) | 1935-08-07 |
| US2061508A (en) | 1936-11-17 |
| FR786417A (fr) | 1935-09-03 |