CH270290A - DF arrangement with a wide frequency band. - Google Patents
DF arrangement with a wide frequency band.Info
- Publication number
- CH270290A CH270290A CH270290DA CH270290A CH 270290 A CH270290 A CH 270290A CH 270290D A CH270290D A CH 270290DA CH 270290 A CH270290 A CH 270290A
- Authority
- CH
- Switzerland
- Prior art keywords
- arrangement
- frequency band
- wide frequency
- wide
- band
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/16—Networks for phase shifting
- H03H11/20—Two-port phase shifters providing an adjustable phase shift
-
- 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
-
- 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
-
- 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
- H03H7/18—Networks for phase shifting
- H03H7/185—Networks for phase shifting comprising distributed impedance elements together with lumped impedance elements
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US468668A US2426175A (en) | 1942-12-11 | 1942-12-11 | Direction finder |
Publications (1)
Publication Number | Publication Date |
---|---|
CH270290A true CH270290A (en) | 1950-08-31 |
Family
ID=23860742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH270290D CH270290A (en) | 1942-12-11 | 1947-09-30 | DF arrangement with a wide frequency band. |
Country Status (6)
Country | Link |
---|---|
US (1) | US2426175A (en) |
BE (1) | BE480683A (en) |
CH (1) | CH270290A (en) |
DE (1) | DE874033C (en) |
FR (2) | FR951017A (en) |
NL (1) | NL69482C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR960665A (en) * | 1941-11-29 | 1950-04-22 | ||
US2578966A (en) * | 1948-06-14 | 1951-12-18 | Fr Sadir Carpentier Soc | Radio-goniometric system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE405522A (en) * | 1941-08-01 |
-
0
- NL NL69482D patent/NL69482C/xx active
- BE BE480683D patent/BE480683A/xx unknown
-
1942
- 1942-12-11 US US468668A patent/US2426175A/en not_active Expired - Lifetime
-
1947
- 1947-08-05 FR FR951017D patent/FR951017A/en not_active Expired
- 1947-09-30 CH CH270290D patent/CH270290A/en unknown
-
1948
- 1948-02-26 FR FR58517D patent/FR58517E/en not_active Expired
-
1950
- 1950-10-01 DE DEF4305A patent/DE874033C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL69482C (en) | |
US2426175A (en) | 1947-08-26 |
FR58517E (en) | 1954-01-27 |
FR951017A (en) | 1949-10-13 |
DE874033C (en) | 1953-04-20 |
BE480683A (en) |
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