BR7500557A - Aperfeicoamentos em e referente a antena do tipo helicoidal - Google Patents
Aperfeicoamentos em e referente a antena do tipo helicoidalInfo
- Publication number
- BR7500557A BR7500557A BR557/75A BR7500557A BR7500557A BR 7500557 A BR7500557 A BR 7500557A BR 557/75 A BR557/75 A BR 557/75A BR 7500557 A BR7500557 A BR 7500557A BR 7500557 A BR7500557 A BR 7500557A
- Authority
- BR
- Brazil
- Prior art keywords
- regarding
- type antenna
- helicoidal type
- helicoidal
- antenna
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR557/75A BR7500557A (pt) | 1975-01-29 | 1975-01-29 | Aperfeicoamentos em e referente a antena do tipo helicoidal |
NL7600883A NL7600883A (nl) | 1975-01-29 | 1976-01-28 | Spiraalantenne. |
CA244,533A CA1067995A (en) | 1975-01-29 | 1976-01-29 | Helical type antennas |
AU10663/76A AU493386B2 (en) | 1976-01-29 | Helical band antenna | |
FR7602432A FR2299739A1 (fr) | 1975-01-29 | 1976-01-29 | Antenne du type helicoidal |
JP51008842A JPS51126024A (en) | 1975-01-29 | 1976-01-29 | Spiral antenna |
EG48/76A EG13207A (en) | 1975-01-29 | 1976-01-31 | Improvements in and referring to helical type antennas |
US05/654,938 US4051481A (en) | 1975-01-29 | 1976-02-03 | Helical band antenna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR557/75A BR7500557A (pt) | 1975-01-29 | 1975-01-29 | Aperfeicoamentos em e referente a antena do tipo helicoidal |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7500557A true BR7500557A (pt) | 1975-12-16 |
Family
ID=3992781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR557/75A BR7500557A (pt) | 1975-01-29 | 1975-01-29 | Aperfeicoamentos em e referente a antena do tipo helicoidal |
Country Status (7)
Country | Link |
---|---|
US (1) | US4051481A (pt) |
JP (1) | JPS51126024A (pt) |
BR (1) | BR7500557A (pt) |
CA (1) | CA1067995A (pt) |
EG (1) | EG13207A (pt) |
FR (1) | FR2299739A1 (pt) |
NL (1) | NL7600883A (pt) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5376729A (en) * | 1976-12-20 | 1978-07-07 | Tokyo Keiki Kk | Spiral antenna unit |
US4559539A (en) * | 1983-07-18 | 1985-12-17 | American Electronic Laboratories, Inc. | Spiral antenna deformed to receive another antenna |
CA2061743C (en) * | 1992-02-24 | 1996-05-14 | Peter Charles Strickland | End loaded helix antenna |
CA2139198C (en) * | 1993-12-28 | 1998-08-18 | Norihiko Ohmuro | Broad conical-mode helical antenna |
JP2715882B2 (ja) * | 1993-12-28 | 1998-02-18 | 日本電気株式会社 | ヘリカルアンテナ |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB430548A (en) * | 1934-06-28 | 1935-06-20 | Baxendale And Company Ltd | Improvements in wireless or radio aerials |
FR810325A (fr) * | 1935-12-10 | 1937-03-19 | Cablerie E Charbonnet | Antenne verticale spiralée pour télégraphie, téléphonie sans fil ou télévision |
US2958081A (en) * | 1959-06-30 | 1960-10-25 | Univ Illinois | Unidirectional broadband antenna comprising modified balanced equiangular spiral |
US3629937A (en) * | 1966-11-14 | 1971-12-28 | Chevron Res | Method of forming a helical antenna |
US3509578A (en) * | 1967-06-21 | 1970-04-28 | Nasa | Weatherproof helix antenna |
US3564553A (en) * | 1967-11-08 | 1971-02-16 | North American Rockwell | Airborne transmitting antenna |
US3683393A (en) * | 1970-07-06 | 1972-08-08 | Electrotec Corp | Helical dipole antenna |
US3778839A (en) * | 1971-07-30 | 1973-12-11 | Hallicrafters Co | Double ridged wave guide feed for signal antenna |
US3836979A (en) * | 1973-12-14 | 1974-09-17 | Trw Inc | Lightweight deployable helical antenna |
-
1975
- 1975-01-29 BR BR557/75A patent/BR7500557A/pt unknown
-
1976
- 1976-01-28 NL NL7600883A patent/NL7600883A/xx active Search and Examination
- 1976-01-29 JP JP51008842A patent/JPS51126024A/ja active Pending
- 1976-01-29 CA CA244,533A patent/CA1067995A/en not_active Expired
- 1976-01-29 FR FR7602432A patent/FR2299739A1/fr not_active Withdrawn
- 1976-01-31 EG EG48/76A patent/EG13207A/xx active
- 1976-02-03 US US05/654,938 patent/US4051481A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL7600883A (nl) | 1976-08-02 |
EG13207A (en) | 1980-10-31 |
JPS51126024A (en) | 1976-11-02 |
FR2299739A1 (fr) | 1976-08-27 |
US4051481A (en) | 1977-09-27 |
CA1067995A (en) | 1979-12-11 |
AU1066376A (en) | 1977-08-04 |
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