FR1286970A - Dual frequency channel roof system - Google Patents
Dual frequency channel roof systemInfo
- Publication number
- FR1286970A FR1286970A FR854213A FR854213A FR1286970A FR 1286970 A FR1286970 A FR 1286970A FR 854213 A FR854213 A FR 854213A FR 854213 A FR854213 A FR 854213A FR 1286970 A FR1286970 A FR 1286970A
- Authority
- FR
- France
- Prior art keywords
- frequency channel
- roof system
- dual frequency
- channel roof
- dual
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR854213A FR1286970A (en) | 1960-03-09 | 1961-03-01 | Dual frequency channel roof system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13783A US3100894A (en) | 1960-03-09 | 1960-03-09 | Dual frequency feed horn |
FR854213A FR1286970A (en) | 1960-03-09 | 1961-03-01 | Dual frequency channel roof system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1286970A true FR1286970A (en) | 1962-03-09 |
Family
ID=26189482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR854213A Expired FR1286970A (en) | 1960-03-09 | 1961-03-01 | Dual frequency channel roof system |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1286970A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2507392A1 (en) * | 1981-06-05 | 1982-12-10 | Thomson Csf | RADIATION SOURCE OPEN CAVITY MICROWAVE EXCITED BY TWO ORTHOGONAL DIPOLES |
-
1961
- 1961-03-01 FR FR854213A patent/FR1286970A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2507392A1 (en) * | 1981-06-05 | 1982-12-10 | Thomson Csf | RADIATION SOURCE OPEN CAVITY MICROWAVE EXCITED BY TWO ORTHOGONAL DIPOLES |
EP0067753A1 (en) * | 1981-06-05 | 1982-12-22 | Thomson-Csf | Microwave antenna with open cavities fed by two orthogonal dipoles |
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