NL138904B - Antenne voor ultrahoge frequentie. - Google Patents
Antenne voor ultrahoge frequentie.Info
- Publication number
- NL138904B NL138904B NL646410250A NL6410250A NL138904B NL 138904 B NL138904 B NL 138904B NL 646410250 A NL646410250 A NL 646410250A NL 6410250 A NL6410250 A NL 6410250A NL 138904 B NL138904 B NL 138904B
- Authority
- NL
- Netherlands
- Prior art keywords
- antenna
- high frequency
- ultra high
- ultra
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
- H01Q1/421—Means for correcting aberrations introduced by a radome
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
- H01Q15/12—Refracting or diffracting devices, e.g. lens, prism functioning also as polarisation filter
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/22—Reflecting surfaces; Equivalent structures functioning also as polarisation filter
-
- 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
- H01Q19/18—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 having two or more spaced reflecting surfaces
- H01Q19/19—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
- H01Q19/195—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface wherein a reflecting surface acts also as a polarisation filter or a polarising device
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR946916 | 1963-09-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
NL6410250A NL6410250A (fr) | 1972-03-27 |
NL138904B true NL138904B (nl) | 1973-05-15 |
Family
ID=8811967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL646410250A NL138904B (nl) | 1963-09-09 | 1964-09-03 | Antenne voor ultrahoge frequentie. |
Country Status (5)
Country | Link |
---|---|
US (1) | US3688311A (fr) |
DE (1) | DE1441642C3 (fr) |
FR (1) | FR1604514A (fr) |
GB (1) | GB1268341A (fr) |
NL (1) | NL138904B (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4145695A (en) * | 1977-03-01 | 1979-03-20 | Bell Telephone Laboratories, Incorporated | Launcher reflectors for correcting for astigmatism in off-axis fed reflector antennas |
US4343004A (en) * | 1980-11-24 | 1982-08-03 | Bell Telephone Laboratories, Incorporated | Broadband astigmatic feed arrangement for an antenna |
US4339757A (en) * | 1980-11-24 | 1982-07-13 | Bell Telephone Laboratories, Incorporated | Broadband astigmatic feed arrangement for an antenna |
US4535338A (en) * | 1982-05-10 | 1985-08-13 | At&T Bell Laboratories | Multibeam antenna arrangement |
US4491848A (en) * | 1982-08-30 | 1985-01-01 | At&T Bell Laboratories | Substantially frequency-independent aberration correcting antenna arrangement |
US4755826A (en) * | 1983-01-10 | 1988-07-05 | The United States Of America As Represented By The Secretary Of The Navy | Bicollimated offset Gregorian dual reflector antenna system |
US4574287A (en) * | 1983-03-04 | 1986-03-04 | The United States Of America As Represented By The Secretary Of The Navy | Fixed aperture, rotating feed, beam scanning antenna system |
US4769646A (en) * | 1984-02-27 | 1988-09-06 | United Technologies Corporation | Antenna system and dual-fed lenses producing characteristically different beams |
US4791427A (en) * | 1985-11-22 | 1988-12-13 | United Technologies Corporation | Multimode, multispectral antenna |
GB2264006B (en) * | 1992-02-01 | 1995-09-27 | British Aerospace Space And Co | A reflector antenna assembly for dual linear polarisation |
US6225961B1 (en) | 1999-07-27 | 2001-05-01 | Prc Inc. | Beam waveguide antenna with independently steerable antenna beams and method of compensating for planetary aberration in antenna beam tracking of spacecraft |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2846680A (en) * | 1946-06-29 | 1958-08-05 | Bell Telephone Labor Inc | Directive antennas |
US2790169A (en) * | 1949-04-18 | 1957-04-23 | Itt | Antenna |
US2736895A (en) * | 1951-02-16 | 1956-02-28 | Elliott Brothers London Ltd | High frequency radio aerials |
US2975419A (en) * | 1959-10-13 | 1961-03-14 | Newell H Brown | Microwave antenna reflector system for scanning by displacement of focal image |
-
1963
- 1963-09-09 FR FR946916A patent/FR1604514A/fr not_active Expired
-
1964
- 1964-08-14 GB GB33347/64D patent/GB1268341A/en not_active Expired
- 1964-08-19 US US391076A patent/US3688311A/en not_active Expired - Lifetime
- 1964-09-03 NL NL646410250A patent/NL138904B/xx not_active IP Right Cessation
- 1964-09-04 DE DE1441642A patent/DE1441642C3/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3688311A (en) | 1972-08-29 |
DE1441642B2 (de) | 1974-03-28 |
FR1604514A (fr) | 1971-11-29 |
DE1441642C3 (de) | 1979-08-30 |
NL6410250A (fr) | 1972-03-27 |
DE1441642A1 (de) | 1972-07-27 |
GB1268341A (en) | 1972-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee | ||
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: C S F |