CH212948A - Directional antenna. - Google Patents
Directional antenna.Info
- Publication number
- CH212948A CH212948A CH212948DA CH212948A CH 212948 A CH212948 A CH 212948A CH 212948D A CH212948D A CH 212948DA CH 212948 A CH212948 A CH 212948A
- Authority
- CH
- Switzerland
- Prior art keywords
- directional antenna
- directional
- antenna
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
- H01Q21/10—Collinear arrangements of substantially straight elongated conductive units
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
- H01Q19/17—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE212948X | 1938-11-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH212948A true CH212948A (en) | 1940-12-31 |
Family
ID=5810745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH212948D CH212948A (en) | 1938-11-09 | 1939-09-22 | Directional antenna. |
Country Status (3)
Country | Link |
---|---|
US (1) | US2283081A (en) |
CH (1) | CH212948A (en) |
FR (1) | FR868418A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2511974A (en) * | 1950-06-20 | Hangar tent | ||
US2706779A (en) * | 1952-03-14 | 1955-04-19 | Bell Telephone Labor Inc | High gain antenna |
JPS56160102A (en) * | 1980-05-13 | 1981-12-09 | Koki Tanaka | Folded antenna using coaxial line |
WO2007072710A1 (en) * | 2005-12-21 | 2007-06-28 | Matsushita Electric Industrial Co., Ltd. | Directivity-variable antenna |
-
1939
- 1939-09-22 CH CH212948D patent/CH212948A/en unknown
- 1939-11-09 US US303520A patent/US2283081A/en not_active Expired - Lifetime
-
1940
- 1940-12-27 FR FR868418D patent/FR868418A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2283081A (en) | 1942-05-12 |
FR868418A (en) | 1941-12-30 |
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