NL89640C - - Google Patents
Info
- Publication number
- NL89640C NL89640C NL89640DA NL89640C NL 89640 C NL89640 C NL 89640C NL 89640D A NL89640D A NL 89640DA NL 89640 C NL89640 C NL 89640C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/02—Bends; Corners; Twists
- H01P1/022—Bends; Corners; Twists in waveguides of polygonal cross-section
- H01P1/025—Bends; Corners; Twists in waveguides of polygonal cross-section in the E-plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/04—Coupling devices of the waveguide type with variable factor of coupling
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB316039X | 1951-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL89640C true NL89640C (en) |
Family
ID=10325616
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL89640D NL89640C (en) | 1951-01-12 | ||
| NL7202655.A NL166566B (en) | 1951-01-12 | PLACEMENT MECHANISM FOR READ AND WRITE HEADS. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7202655.A NL166566B (en) | 1951-01-12 | PLACEMENT MECHANISM FOR READ AND WRITE HEADS. |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE508374A (en) |
| CH (1) | CH316039A (en) |
| DE (2) | DE1034721B (en) |
| FR (1) | FR65458E (en) |
| GB (1) | GB684887A (en) |
| NL (2) | NL166566B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3101460A (en) * | 1957-05-07 | 1963-08-20 | Microwave Ass | Hermetically sealed waveguide window with non-sputtering iris |
| DE2842577C2 (en) * | 1978-09-29 | 1984-10-04 | Siemens AG, 1000 Berlin und 8000 München | Rectangular waveguide angle piece nodulated over the broad side of the waveguide |
| DE2903665C2 (en) * | 1979-01-31 | 1984-09-27 | Siemens AG, 1000 Berlin und 8000 München | Rectangular waveguide angle piece bent over the broad side of the waveguide |
| US4760404A (en) * | 1986-09-30 | 1988-07-26 | The Boeing Company | Device and method for separating short-wavelength and long-wavelength signals |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR961087A (en) * | 1950-05-03 | |||
| FR958781A (en) * | 1950-03-17 | |||
| US2407911A (en) * | 1942-04-16 | 1946-09-17 | Gen Electric | Wave propagation |
| GB582088A (en) * | 1942-08-14 | 1946-11-05 | Edward Cecil Cork | Improvements in or relating to electromagnetic wave guides |
| DE871324C (en) * | 1943-02-07 | 1953-03-23 | Julius Pintsch K G | Arrangement to compensate for changes in impedance occurring at points of interference along ultra-high frequency transmission lines |
| NL117392B (en) * | 1943-06-16 | |||
| FR984968A (en) * | 1943-10-20 | 1951-07-12 | Csf | Protection against bad weather from the inside of guides and cones used in the propagation of electromagnetic waves |
| US2411338A (en) * | 1944-07-24 | 1946-11-19 | Roberts Shepard | Wave guide |
| FR950844A (en) * | 1945-06-19 | 1949-10-07 | Hazeltine Corp | Impedance matching device |
| FR962827A (en) * | 1946-09-18 | 1950-06-21 | ||
| GB637109A (en) * | 1947-04-17 | 1950-05-10 | Charles Walter Miller | Improvements relating to electromagnetic waveguides |
-
0
- NL NL89640D patent/NL89640C/xx active
- BE BE508374D patent/BE508374A/xx unknown
- NL NL7202655.A patent/NL166566B/en unknown
-
1951
- 1951-01-12 GB GB952/51A patent/GB684887A/en not_active Expired
-
1952
- 1952-01-10 DE DEI5404A patent/DE1034721B/en active Pending
- 1952-01-10 DE DEI10679A patent/DE1014606B/en active Pending
- 1952-01-11 FR FR65458D patent/FR65458E/en not_active Expired
- 1952-01-12 CH CH316039D patent/CH316039A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1034721B (en) | 1958-07-24 |
| BE508374A (en) | |
| CH316039A (en) | 1956-09-15 |
| GB684887A (en) | 1952-12-24 |
| FR65458E (en) | 1956-02-21 |
| NL166566B (en) | |
| DE1014606B (en) | 1957-08-29 |