IT1092514B - Radiatore a guida d'onda a duplice banda - Google Patents
Radiatore a guida d'onda a duplice bandaInfo
- Publication number
- IT1092514B IT1092514B IT19425/78A IT1942578A IT1092514B IT 1092514 B IT1092514 B IT 1092514B IT 19425/78 A IT19425/78 A IT 19425/78A IT 1942578 A IT1942578 A IT 1942578A IT 1092514 B IT1092514 B IT 1092514B
- Authority
- IT
- Italy
- Prior art keywords
- wave guide
- double band
- band wave
- guide radiator
- radiator
- 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
- H01Q25/001—Crossed polarisation dual antennas
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3345/77A GB1536242A (en) | 1977-01-27 | 1977-01-27 | Antenna |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7819425A0 IT7819425A0 (it) | 1978-01-19 |
IT1092514B true IT1092514B (it) | 1985-07-12 |
Family
ID=9756570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT19425/78A IT1092514B (it) | 1977-01-27 | 1978-01-19 | Radiatore a guida d'onda a duplice banda |
Country Status (5)
Country | Link |
---|---|
US (1) | US4141012A (it) |
DE (1) | DE2802585A1 (it) |
FR (1) | FR2379178A1 (it) |
GB (1) | GB1536242A (it) |
IT (1) | IT1092514B (it) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5651102A (en) * | 1979-10-04 | 1981-05-08 | Japan Radio Co Ltd | Radar antenna for two frequencies |
US4353072A (en) * | 1980-11-24 | 1982-10-05 | Raytheon Company | Circularly polarized radio frequency antenna |
US4672384A (en) * | 1984-12-31 | 1987-06-09 | Raytheon Company | Circularly polarized radio frequency antenna |
GB2193379B (en) * | 1986-07-24 | 1990-04-18 | Gen Electric Plc | An antenna |
FR2640431B1 (fr) * | 1988-12-08 | 1991-05-10 | Alcatel Espace | Dispositif rayonnant multifrequence |
US4978965A (en) * | 1989-04-11 | 1990-12-18 | Itt Corporation | Broadband dual-polarized frameless radiating element |
US5023623A (en) * | 1989-12-21 | 1991-06-11 | Hughes Aircraft Company | Dual mode antenna apparatus having slotted waveguide and broadband arrays |
US5270724A (en) * | 1991-04-04 | 1993-12-14 | Hughes Aircraft Company | Multifrequency phased array aperture |
US5872544A (en) * | 1997-02-04 | 1999-02-16 | Gec-Marconi Hazeltine Corporation Electronic Systems Division | Cellular antennas with improved front-to-back performance |
US6175333B1 (en) | 1999-06-24 | 2001-01-16 | Nortel Networks Corporation | Dual band antenna |
US6396441B2 (en) | 1999-11-02 | 2002-05-28 | Nortel Networks Limited | Dual band antenna |
US6388619B2 (en) | 1999-11-02 | 2002-05-14 | Nortel Networks Limited | Dual band antenna |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2784403A (en) * | 1951-03-17 | 1957-03-05 | North American Aviation Inc | Double cavity primary feed |
US2897491A (en) * | 1957-01-22 | 1959-07-28 | Bendix Aviat Corp | Phase saturable transducer |
US3193830A (en) * | 1963-07-25 | 1965-07-06 | Joseph H Provencher | Multifrequency dual ridge waveguide slot antenna |
US3523297A (en) * | 1968-12-20 | 1970-08-04 | Hughes Aircraft Co | Dual frequency antenna |
US3882505A (en) * | 1974-05-30 | 1975-05-06 | Robert J Mailloux | Dual band phased array element |
-
1977
- 1977-01-27 GB GB3345/77A patent/GB1536242A/en not_active Expired
- 1977-12-30 US US05/866,096 patent/US4141012A/en not_active Expired - Lifetime
-
1978
- 1978-01-13 FR FR7800971A patent/FR2379178A1/fr not_active Withdrawn
- 1978-01-19 IT IT19425/78A patent/IT1092514B/it active
- 1978-01-21 DE DE19782802585 patent/DE2802585A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
IT7819425A0 (it) | 1978-01-19 |
US4141012A (en) | 1979-02-20 |
DE2802585A1 (de) | 1978-08-03 |
GB1536242A (en) | 1978-12-20 |
FR2379178A1 (fr) | 1978-08-25 |
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