IT1107469B - Perfezionamento nelle antenne a radio frequenza - Google Patents
Perfezionamento nelle antenne a radio frequenzaInfo
- Publication number
- IT1107469B IT1107469B IT50319/78A IT5031978A IT1107469B IT 1107469 B IT1107469 B IT 1107469B IT 50319/78 A IT50319/78 A IT 50319/78A IT 5031978 A IT5031978 A IT 5031978A IT 1107469 B IT1107469 B IT 1107469B
- Authority
- IT
- Italy
- Prior art keywords
- improvement
- radio frequency
- frequency antennas
- antennas
- radio
- Prior art date
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
- H01Q25/02—Antennas or antenna systems providing at least two radiating patterns providing sum and difference patterns
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/816,421 US4176359A (en) | 1977-07-18 | 1977-07-18 | Monopulse antenna system with independently specifiable patterns |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7850319A0 IT7850319A0 (it) | 1978-07-14 |
IT1107469B true IT1107469B (it) | 1985-11-25 |
Family
ID=25220552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT50319/78A IT1107469B (it) | 1977-07-18 | 1978-07-14 | Perfezionamento nelle antenne a radio frequenza |
Country Status (7)
Country | Link |
---|---|
US (1) | US4176359A (it) |
JP (1) | JPS5421237A (it) |
CA (1) | CA1105610A (it) |
DE (1) | DE2831526C2 (it) |
FR (1) | FR2398394A1 (it) |
GB (1) | GB2001202B (it) |
IT (1) | IT1107469B (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6169518B1 (en) * | 1980-06-12 | 2001-01-02 | Raytheon Company | Dual beam monopulse antenna system |
US4924234A (en) * | 1987-03-26 | 1990-05-08 | Hughes Aircraft Company | Plural level beam-forming network |
US5012254A (en) * | 1987-03-26 | 1991-04-30 | Hughes Aircraft Company | Plural level beam-forming netowrk |
US4912477A (en) * | 1988-11-18 | 1990-03-27 | Grumman Aerospace Corporation | Radar system for determining angular position utilizing a linear phased array antenna |
US5017927A (en) * | 1990-02-20 | 1991-05-21 | General Electric Company | Monopulse phased array antenna with plural transmit-receive module phase shifters |
GB2256528B (en) * | 1991-06-05 | 1995-01-11 | Siemens Plessey Electronic | A power distribution network for array antennas |
US5856810A (en) * | 1996-10-02 | 1999-01-05 | Gec-Marconi Hazeltine Corp. Electronic Systems Division | Low sidelobe multi-beam lossless feed networks for array antennas |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3460144A (en) * | 1961-05-22 | 1969-08-05 | Hazeltine Research Inc | Antenna systems providing independent control in a plurality of modes of operation |
US3392395A (en) * | 1961-05-22 | 1968-07-09 | Hazeltine Research Inc | Monopulse antenna system providing independent control in a plurality of modes of operation |
FR1470437A (fr) * | 1966-01-14 | 1967-02-24 | Csf | Perfectionnement aux antennes constituées par des réseaux de source |
GB1238424A (it) * | 1969-07-10 | 1971-07-07 | ||
US3824500A (en) * | 1973-04-19 | 1974-07-16 | Sperry Rand Corp | Transmission line coupling and combining network for high frequency antenna array |
US3868695A (en) * | 1973-07-18 | 1975-02-25 | Westinghouse Electric Corp | Conformal array beam forming network |
US3940770A (en) * | 1974-04-24 | 1976-02-24 | Raytheon Company | Cylindrical array antenna with radial line power divider |
US4028710A (en) * | 1976-03-03 | 1977-06-07 | Westinghouse Electric Corporation | Apparatus for steering a rectangular array of elements by an angular increment in one of the orthogonal array directions |
-
1977
- 1977-07-18 US US05/816,421 patent/US4176359A/en not_active Expired - Lifetime
-
1978
- 1978-06-19 CA CA305,696A patent/CA1105610A/en not_active Expired
- 1978-07-05 GB GB7828860A patent/GB2001202B/en not_active Expired
- 1978-07-14 IT IT50319/78A patent/IT1107469B/it active
- 1978-07-18 JP JP8761778A patent/JPS5421237A/ja active Granted
- 1978-07-18 DE DE2831526A patent/DE2831526C2/de not_active Expired
- 1978-07-18 FR FR7821261A patent/FR2398394A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6133283B2 (it) | 1986-08-01 |
FR2398394B1 (it) | 1985-03-22 |
CA1105610A (en) | 1981-07-21 |
JPS5421237A (en) | 1979-02-17 |
FR2398394A1 (fr) | 1979-02-16 |
GB2001202A (en) | 1979-01-24 |
DE2831526C2 (de) | 1986-07-17 |
DE2831526A1 (de) | 1979-02-22 |
IT7850319A0 (it) | 1978-07-14 |
GB2001202B (en) | 1982-01-13 |
US4176359A (en) | 1979-11-27 |
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