BE440731A - - Google Patents
Info
- Publication number
- BE440731A BE440731A BE440731DA BE440731A BE 440731 A BE440731 A BE 440731A BE 440731D A BE440731D A BE 440731DA BE 440731 A BE440731 A BE 440731A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
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- 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
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- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/04—Details
- G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna
- G01S3/065—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna by using non-directional aerial
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Near-Field Transmission Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL100274D DE754632C (de) | 1940-03-03 | 1940-03-03 | Peilsystem |
Publications (1)
Publication Number | Publication Date |
---|---|
BE440731A true BE440731A (de) | 1941-04-30 |
Family
ID=5832168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE440731D BE440731A (de) | 1940-03-03 | 1941-03-01 |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE440731A (de) |
CH (1) | CH219969A (de) |
DE (2) | DE754632C (de) |
FR (1) | FR872759A (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE974031C (de) * | 1954-08-20 | 1960-08-25 | Telefunken Gmbh | Neutralisierte HF-Stufe in Zwischenbasisschaltung |
DE1186118B (de) * | 1960-05-16 | 1965-01-28 | Dr Maximilian Waechtler | Funkpeiler |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE580290C (de) * | 1929-06-14 | 1933-07-08 | Hell Rudolf Dr Ing | Schaltanordnung zur direktzeigenden Peilung |
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1940
- 1940-03-03 DE DEL100274D patent/DE754632C/de not_active Expired
- 1940-06-28 DE DEL4096D patent/DE927750C/de not_active Expired
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1941
- 1941-03-01 BE BE440731D patent/BE440731A/xx unknown
- 1941-03-03 CH CH219969D patent/CH219969A/de unknown
- 1941-05-29 FR FR872759D patent/FR872759A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE927750C (de) | 1955-05-16 |
FR872759A (fr) | 1942-06-18 |
CH219969A (de) | 1942-03-15 |
DE754632C (de) | 1953-07-20 |