NL98690C - - Google Patents
Info
- Publication number
- NL98690C NL98690C NL98690DA NL98690C NL 98690 C NL98690 C NL 98690C NL 98690D A NL98690D A NL 98690DA NL 98690 C NL98690 C NL 98690C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE737019X | 1952-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL98690C true NL98690C (xx) |
Family
ID=20319723
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL98690D NL98690C (xx) | 1952-03-01 | ||
| NLAANVRAGE7503880,A NL176429B (nl) | 1952-03-01 | Hefinrichting voor lichamen, in het bijzonder voor liggende patienten. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7503880,A NL176429B (nl) | 1952-03-01 | Hefinrichting voor lichamen, in het bijzonder voor liggende patienten. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2743441A (xx) |
| BE (1) | BE518071A (xx) |
| DE (1) | DE1010125B (xx) |
| FR (1) | FR1071256A (xx) |
| GB (1) | GB737019A (xx) |
| NL (2) | NL176429B (xx) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5787673A (en) * | 1992-09-14 | 1998-08-04 | Pirod, Inc. | Antenna support with multi-direction adjustability |
| US5923302A (en) * | 1995-06-12 | 1999-07-13 | Northrop Grumman Corporation | Full coverage antenna array including side looking and end-free antenna arrays having comparable gain |
| US5982337A (en) * | 1998-02-20 | 1999-11-09 | Marconi Aerospace Systems Inc. | Cellular antennas for stratosphere coverage of multi-band annular earth pattern |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1764441A (en) * | 1924-08-04 | 1930-06-17 | Hahnemann Walter | Arrangement for directional transmission and reception by means of electric waves |
| US1898058A (en) * | 1927-08-17 | 1933-02-21 | Rca Corp | Corkscrew radlation |
| US2183784A (en) * | 1935-01-04 | 1939-12-19 | Rca Corp | Directional antenna |
| US2272312A (en) * | 1939-05-20 | 1942-02-10 | Rca Corp | Radio relaying |
| US2580462A (en) * | 1943-12-09 | 1952-01-01 | Richard H Ranger | Radio range device |
| US2551586A (en) * | 1945-08-09 | 1951-05-08 | Lee R Dobler | Antenna system |
| US2485138A (en) * | 1946-10-03 | 1949-10-18 | Rca Corp | High-gain antenna system |
-
0
- NL NL98690D patent/NL98690C/xx active
- NL NLAANVRAGE7503880,A patent/NL176429B/xx unknown
- BE BE518071D patent/BE518071A/xx unknown
-
1952
- 1952-11-24 FR FR1071256D patent/FR1071256A/fr not_active Expired
- 1952-12-10 DE DES31432A patent/DE1010125B/de active Pending
-
1953
- 1953-01-05 US US329523A patent/US2743441A/en not_active Expired - Lifetime
- 1953-02-27 GB GB5542/53A patent/GB737019A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1071256A (fr) | 1954-08-30 |
| GB737019A (en) | 1955-09-21 |
| NL176429B (nl) | |
| DE1010125B (de) | 1957-06-13 |
| BE518071A (xx) | |
| US2743441A (en) | 1956-04-24 |