NL74927C - - Google Patents
Info
- Publication number
- NL74927C NL74927C NL74927DA NL74927C NL 74927 C NL74927 C NL 74927C NL 74927D A NL74927D A NL 74927DA NL 74927 C NL74927 C NL 74927C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/06—Movable joints, e.g. rotating joints
- H01P1/062—Movable joints, e.g. rotating joints the relative movement being a rotation
- H01P1/066—Movable joints, e.g. rotating joints the relative movement being a rotation with an unlimited angle of rotation
- H01P1/068—Movable joints, e.g. rotating joints the relative movement being a rotation with an unlimited angle of rotation the energy being transmitted in at least one ring-shaped transmission line located around the axis of rotation, e.g. "around the mast" rotary joint
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB584649A GB672976A (en) | 1949-03-03 | 1949-03-03 | Improvements relating to radiators for ultra high frequency electro-magnetic energy and apparatus embodying the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL74927C true NL74927C (pt) |
Family
ID=9803724
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL74927D NL74927C (pt) | 1949-03-03 | ||
| NL686805126A NL151986B (nl) | 1949-03-03 | Werkwijze voor het bereiden van acrylonitril. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL686805126A NL151986B (nl) | 1949-03-03 | Werkwijze voor het bereiden van acrylonitril. |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR1018325A (pt) |
| GB (1) | GB672976A (pt) |
| NL (2) | NL151986B (pt) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2945193A (en) * | 1954-02-02 | 1960-07-12 | Texas Instruments Inc | Rotary waveguide joint and switching structure |
| CN103107387B (zh) * | 2013-02-08 | 2015-03-25 | 华为技术有限公司 | 具有滤波元件的移相器以及滤波元件和天线 |
-
0
- NL NL74927D patent/NL74927C/xx active
- NL NL686805126A patent/NL151986B/xx unknown
-
1949
- 1949-03-03 GB GB584649A patent/GB672976A/en not_active Expired
-
1950
- 1950-03-02 FR FR1018325D patent/FR1018325A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL151986B (nl) | |
| FR1018325A (fr) | 1953-01-06 |
| GB672976A (en) | 1952-05-28 |