NL56355C - - Google Patents
Info
- Publication number
- NL56355C NL56355C NL56355DA NL56355C NL 56355 C NL56355 C NL 56355C NL 56355D A NL56355D A NL 56355DA NL 56355 C NL56355 C NL 56355C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2225475X | 1937-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL56355C true NL56355C (de) |
Family
ID=7991086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL56355D NL56355C (de) | 1937-10-26 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2225475A (de) |
| FR (1) | FR845140A (de) |
| NL (1) | NL56355C (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2998605A (en) * | 1957-07-09 | 1961-08-29 | Hazeltine Research Inc | Antenna system |
| US3982249A (en) * | 1975-05-30 | 1976-09-21 | Tull Aviation Corporation | Microwave radiation method and apparatus with a combined diffraction edge and radiation screen |
-
0
- NL NL56355D patent/NL56355C/xx active
-
1938
- 1938-10-24 FR FR845140D patent/FR845140A/fr not_active Expired
- 1938-10-26 US US237102A patent/US2225475A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR845140A (fr) | 1939-08-11 |
| US2225475A (en) | 1940-12-17 |