ES179899A1 - IMPROVEMENTS IN RADIO RECEPTOR COUPLING SYSTEMS - Google Patents

IMPROVEMENTS IN RADIO RECEPTOR COUPLING SYSTEMS

Info

Publication number
ES179899A1
ES179899A1 ES0179899A ES179899A ES179899A1 ES 179899 A1 ES179899 A1 ES 179899A1 ES 0179899 A ES0179899 A ES 0179899A ES 179899 A ES179899 A ES 179899A ES 179899 A1 ES179899 A1 ES 179899A1
Authority
ES
Spain
Prior art keywords
impedance
receiver
coupling means
antenna
radio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES0179899A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES179899A1 publication Critical patent/ES179899A1/en
Expired legal-status Critical Current

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
    • H03H11/34—Networks for connecting several sources or loads working on different frequencies or frequency bands, to a common load or source
    • H03H11/346—Networks for connecting several sources or loads working on different frequencies or frequency bands, to a common load or source particularly adapted as input circuit for receivers
    • 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

Abstract

Mejoras en sistemas de acoplamiento de radio-receptores caracterizadas por un sistema radio-receptor para operar sobre una banda ancha de frecuencias que comprende una antena aperiódica una línea de transmisión de baja impedancia medios de acoplamiento que acoplan la antena a la línea de transmisión medios de acoplamiento que igualan sustancialmente la impedancia de la antena con al impedancia de la línea a través de una banda de frecuencias un receptor sintonizado a una frecuencia de la referida banda un segundo medio de acoplamiento que acopla la entrada del receptor a la línea de transmisión teniendo el segundo medio de acoplamiento una impedancia de entrada suficientemente alta como para no tener efecto sustancial alguno sobre la impedancia de la línea.Improvements in radio-receiver coupling systems characterized by a radio-receiver system to operate over a broad band of frequencies comprising an aperiodic antenna and a low-impedance transmission line coupling means that couple the antenna to the transmission line coupling means coupling that substantially equalizes the impedance of the antenna with the impedance of the line through a band of frequencies a receiver tuned to a frequency of said band a second coupling means that couples the input of the receiver to the transmission line having the second coupling means an input impedance high enough to have no substantial effect on the line impedance.

ES0179899A 1943-08-26 1947-09-27 IMPROVEMENTS IN RADIO RECEPTOR COUPLING SYSTEMS Expired ES179899A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US500076A US2457123A (en) 1943-08-26 1943-08-26 Coupling arrangement

Publications (1)

Publication Number Publication Date
ES179899A1 true ES179899A1 (en) 1947-11-01

Family

ID=23987942

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0179899A Expired ES179899A1 (en) 1943-08-26 1947-09-27 IMPROVEMENTS IN RADIO RECEPTOR COUPLING SYSTEMS

Country Status (4)

Country Link
US (1) US2457123A (en)
BE (1) BE476848A (en)
ES (1) ES179899A1 (en)
FR (1) FR952689A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578836A (en) * 1947-12-03 1951-12-18 Gen Bronze Corp Television and radio distribution system
US2628312A (en) * 1949-05-24 1953-02-10 Rca Corp Receiving station antenna distribution system
US2724772A (en) * 1950-05-10 1955-11-22 Decca Record Co Ltd Aircraft radio antennae

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1313483A (en) * 1919-08-19 High-freqttency-carrier telephony
US1912766A (en) * 1923-06-27 1933-06-06 Telefunken Gmbh Receiving arrangement with aperiodic directional aerial system
US2003962A (en) * 1929-03-29 1935-06-04 Rca Corp Radio frequency distribution system
US1853181A (en) * 1930-02-06 1932-04-12 Rca Corp Centralized radio system
US2000190A (en) * 1931-08-28 1935-05-07 Bell Telephone Labor Inc Radio receiving system
US1971235A (en) * 1931-11-28 1934-08-21 Bell Telephone Labor Inc Radio receiving system
US2054799A (en) * 1932-04-20 1936-09-22 Telefunken Gmbh High frequency distribution system
US2006994A (en) * 1932-05-10 1935-07-02 Rca Corp Radio frequency distribution system
US2129075A (en) * 1936-02-19 1938-09-06 Rca Corp Centralized radio system for short and broadcast waves
NL84932B (en) * 1936-11-07 1900-01-01
US2179414A (en) * 1937-05-25 1939-11-07 Philco Radio & Television Corp Contrast amplifier
US2229043A (en) * 1939-01-28 1941-01-21 Wired Radio Inc Radio reception system
US2229044A (en) * 1939-10-11 1941-01-21 Wired Radio Inc Radio receiving method and system
US2411706A (en) * 1942-06-03 1946-11-26 Gen Electric Phase inverter circuit

Also Published As

Publication number Publication date
FR952689A (en) 1949-11-22
US2457123A (en) 1948-12-28
BE476848A (en)

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