NL64189C - - Google Patents
Info
- Publication number
- NL64189C NL64189C NL64189DA NL64189C NL 64189 C NL64189 C NL 64189C NL 64189D A NL64189D A NL 64189DA NL 64189 C NL64189 C NL 64189C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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 |
|---|---|---|---|
| US270173A US2283897A (en) | 1939-04-26 | 1939-04-26 | Antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL64189C true NL64189C (de) |
Family
ID=23030211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL64189D NL64189C (de) | 1939-04-26 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2283897A (de) |
| CH (1) | CH292838A (de) |
| FR (1) | FR864920A (de) |
| GB (1) | GB538036A (de) |
| NL (1) | NL64189C (de) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2424079A (en) * | 1943-04-19 | 1947-07-15 | Gen Electric | System of communication |
| US2534624A (en) * | 1943-05-29 | 1950-12-19 | Hartford Nat Bank & Trust Co | Transmitting device |
| NL67941C (de) * | 1943-06-01 | |||
| FR961093A (de) * | 1943-06-12 | 1950-05-03 | ||
| US2513338A (en) * | 1943-11-01 | 1950-07-04 | Sperry Corp | Directive antenna system |
| US2511899A (en) * | 1944-12-30 | 1950-06-20 | Rca Corp | Antenna system |
| US2465379A (en) * | 1945-01-27 | 1949-03-29 | Standard Telephones Cables Ltd | Antenna unit |
| US2557994A (en) * | 1945-10-12 | 1951-06-26 | Standard Telephones Cables Ltd | Object detector |
| US2817835A (en) * | 1945-11-29 | 1957-12-24 | Jr Harvey R Worthington | Lobe comparison systems |
| US2648001A (en) * | 1946-04-11 | 1953-08-04 | Us Navy | Ring type antenna |
| US2618746A (en) * | 1948-08-13 | 1952-11-18 | Rca Corp | Antenna system |
| BE491490A (de) * | 1948-10-04 | |||
| US2650303A (en) * | 1949-07-01 | 1953-08-25 | Motorola Inc | High-frequency loop antenna system |
| US2650304A (en) * | 1949-09-10 | 1953-08-25 | Motorola Inc | Television antenna |
| US2825061A (en) * | 1951-11-21 | 1958-02-25 | Gabriel Co | Wave radiator |
| US2671852A (en) * | 1951-12-05 | 1954-03-09 | John J Bubbers | Resonant antenna |
| US2749544A (en) * | 1953-05-29 | 1956-06-05 | Gen Dynamics Corp | Omnidirectional antenna |
| US3168694A (en) * | 1961-07-24 | 1965-02-02 | Donald W Slattery | Geophysical survey systems using polarized electromagnetic waves |
| US3427624A (en) * | 1966-07-13 | 1969-02-11 | Northrop Corp | Low profile antenna having horizontal tunable top loading member |
| FR2036909B1 (de) * | 1969-04-17 | 1974-02-22 | Thomson Csf | |
| US3967282A (en) * | 1974-01-30 | 1976-06-29 | The Ohio State University | Underground pipe detector |
| US4338606A (en) * | 1978-12-21 | 1982-07-06 | Sony Corporation | Antenna system with variable directivity |
| US6515632B1 (en) | 2001-06-06 | 2003-02-04 | Tdk Rf Solutions | Multiply-fed loop antenna |
| CN101103490B (zh) * | 2004-11-22 | 2011-03-30 | 新加坡科技研究局 | 应用于超宽频之天线 |
| EP2034557B1 (de) * | 2007-09-06 | 2012-02-01 | Delphi Delco Electronics Europe GmbH | Antenne für den Satellitenempfang |
| DE102008003532A1 (de) | 2007-09-06 | 2009-03-12 | Lindenmeier, Heinz, Prof. Dr. Ing. | Antenne für den Satellitenempfang |
| US7825866B1 (en) | 2007-09-28 | 2010-11-02 | Joseph Klein | Omni directional space-fed antenna with loop patterns |
| US20140313093A1 (en) | 2013-04-17 | 2014-10-23 | Telefonaktiebolaget L M Ericsson | Horizontally polarized omni-directional antenna apparatus and method |
-
0
- NL NL64189D patent/NL64189C/xx active
-
1939
- 1939-04-26 US US270173A patent/US2283897A/en not_active Expired - Lifetime
-
1940
- 1940-03-05 GB GB4095/40A patent/GB538036A/en not_active Expired
- 1940-04-15 FR FR864920D patent/FR864920A/fr not_active Expired
-
1947
- 1947-05-01 CH CH292838D patent/CH292838A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR864920A (fr) | 1941-05-08 |
| GB538036A (en) | 1941-07-17 |
| CH292838A (fr) | 1953-08-31 |
| US2283897A (en) | 1942-05-26 |