FR898352A - Improvements to simultaneous or alternative production systems for two directed radiations - Google Patents

Improvements to simultaneous or alternative production systems for two directed radiations

Info

Publication number
FR898352A
FR898352A FR898352DA FR898352A FR 898352 A FR898352 A FR 898352A FR 898352D A FR898352D A FR 898352DA FR 898352 A FR898352 A FR 898352A
Authority
FR
France
Prior art keywords
simultaneous
production systems
alternative production
directed radiations
radiations
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
Other languages
French (fr)
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR898352A publication Critical patent/FR898352A/en
Expired legal-status Critical Current

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
    • H01Q25/04—Multimode antennas
FR898352D 1942-06-24 1943-09-29 Improvements to simultaneous or alternative production systems for two directed radiations Expired FR898352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE898352X 1942-06-24

Publications (1)

Publication Number Publication Date
FR898352A true FR898352A (en) 1945-04-20

Family

ID=6849132

Family Applications (1)

Application Number Title Priority Date Filing Date
FR898352D Expired FR898352A (en) 1942-06-24 1943-09-29 Improvements to simultaneous or alternative production systems for two directed radiations

Country Status (1)

Country Link
FR (1) FR898352A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997711A (en) * 1959-05-22 1961-08-22 Wiley Electronics Company Spherical reflector and composite illuminator
US3195137A (en) * 1960-12-27 1965-07-13 Bell Telephone Labor Inc Cassegrainian antenna with aperture blocking correction
DE1227088B (en) * 1957-12-17 1966-10-20 Telefunken Patent Directional antenna arrangement for minimum bearing
US3500419A (en) * 1966-09-09 1970-03-10 Technical Appliance Corp Dual frequency,dual polarized cassegrain antenna
US3508277A (en) * 1966-05-27 1970-04-21 Int Standard Electric Corp Coaxial horns with cross-polarized feeds of different frequencies
US3665481A (en) * 1970-05-12 1972-05-23 Nasa Multi-purpose antenna employing dish reflector with plural coaxial horn feeds

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1227088B (en) * 1957-12-17 1966-10-20 Telefunken Patent Directional antenna arrangement for minimum bearing
US2997711A (en) * 1959-05-22 1961-08-22 Wiley Electronics Company Spherical reflector and composite illuminator
US3195137A (en) * 1960-12-27 1965-07-13 Bell Telephone Labor Inc Cassegrainian antenna with aperture blocking correction
US3508277A (en) * 1966-05-27 1970-04-21 Int Standard Electric Corp Coaxial horns with cross-polarized feeds of different frequencies
US3500419A (en) * 1966-09-09 1970-03-10 Technical Appliance Corp Dual frequency,dual polarized cassegrain antenna
US3665481A (en) * 1970-05-12 1972-05-23 Nasa Multi-purpose antenna employing dish reflector with plural coaxial horn feeds

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