NL77990C - - Google Patents
Info
- Publication number
- NL77990C NL77990C NL77990DA NL77990C NL 77990 C NL77990 C NL 77990C NL 77990D A NL77990D A NL 77990DA NL 77990 C NL77990 C NL 77990C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/18—Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/18—Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector
- H01Q15/20—Collapsible reflectors
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE681666X | 1950-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL77990C true NL77990C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=20314936
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL77990D NL77990C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1950-05-13 | ||
| NL6801705.A NL159247B (nl) | 1950-05-13 | Keramisch onderdeel voor elektrodes van mhd-generatoren. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6801705.A NL159247B (nl) | 1950-05-13 | Keramisch onderdeel voor elektrodes van mhd-generatoren. |
Country Status (4)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1596841A (en) * | 1977-07-15 | 1981-09-03 | Firth J H | Radar reflector |
| EP0026054B1 (en) * | 1979-09-17 | 1983-10-26 | John Hewitt Firth | Radar corner reflector |
| FI86342C (fi) * | 1986-07-22 | 1992-08-10 | Bell Stephen W | Radarreflektor. |
| GB2216725B (en) * | 1988-03-18 | 1990-11-14 | Bell Stephen W | Military aircraft |
| US4901081A (en) * | 1988-08-22 | 1990-02-13 | Lifeball International Corporation | Elliptical inflatable radar reflector |
| CN108776327A (zh) * | 2018-06-08 | 2018-11-09 | 陕西同华机电有限公司 | 一种可折叠的悬挂式雷达角反射器 |
-
0
- NL NL77990D patent/NL77990C/xx active
- NL NL6801705.A patent/NL159247B/xx unknown
-
1951
- 1951-02-07 FR FR1042733D patent/FR1042733A/fr not_active Expired
- 1951-03-12 GB GB5898/51A patent/GB681666A/en not_active Expired
- 1951-04-13 DE DES22706A patent/DE869234C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB681666A (en) | 1952-10-29 |
| NL159247B (nl) | |
| FR1042733A (fr) | 1953-11-03 |
| DE869234C (de) | 1953-03-02 |