JPS4921045A - - Google Patents
Info
- Publication number
- JPS4921045A JPS4921045A JP48041489A JP4148973A JPS4921045A JP S4921045 A JPS4921045 A JP S4921045A JP 48041489 A JP48041489 A JP 48041489A JP 4148973 A JP4148973 A JP 4148973A JP S4921045 A JPS4921045 A JP S4921045A
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/44—Monopulse radar, i.e. simultaneous lobing
- G01S13/4409—HF sub-systems particularly adapted therefor, e.g. circuits for signal combination
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00244158A US3803617A (en) | 1972-04-14 | 1972-04-14 | High efficiency multifrequency feed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4921045A true JPS4921045A (it) | 1974-02-25 |
| JPS5224369B2 JPS5224369B2 (it) | 1977-06-30 |
Family
ID=22921594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48041489A Expired JPS5224369B2 (it) | 1972-04-14 | 1973-04-13 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3803617A (it) |
| JP (1) | JPS5224369B2 (it) |
| BR (1) | BR7302624D0 (it) |
| CA (1) | CA977047A (it) |
| DE (1) | DE2316842C3 (it) |
| FR (1) | FR2180114B1 (it) |
| GB (1) | GB1355030A (it) |
| IT (1) | IT988143B (it) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1555307A (en) * | 1975-06-17 | 1979-11-07 | Marconi Co Ltd | Dipole radiotors |
| US4028708A (en) * | 1975-10-10 | 1977-06-07 | The United States Of America As Represented By The Secretary Of The Navy | Antenna feed for dual beam conical scan tracking radar |
| FR2391570A1 (fr) * | 1977-05-18 | 1978-12-15 | Thomson Csf | Dispositif de correction du rayonnement des aeriens multifrequences et aeriens comportant un tel dispositif |
| JPS5816602Y2 (ja) * | 1978-03-16 | 1983-04-04 | シャープ株式会社 | 空気調和装置 |
| FR2442519A1 (fr) * | 1978-11-24 | 1980-06-20 | Thomson Csf | Source primaire monopulse imprimee pour antenne de radar aeroporte et antenne comportant une telle source |
| US4675685A (en) * | 1984-04-17 | 1987-06-23 | Harris Corporation | Low VSWR, flush-mounted, adaptive array antenna |
| US5003321A (en) * | 1985-09-09 | 1991-03-26 | Sts Enterprises, Inc. | Dual frequency feed |
| DE3544092A1 (de) * | 1985-12-13 | 1987-06-19 | Licentia Gmbh | Mehrbereichsantenne fuer den ghz-bereich |
| US4740795A (en) * | 1986-05-28 | 1988-04-26 | Seavey Engineering Associates, Inc. | Dual frequency antenna feeding with coincident phase centers |
| US4843399B1 (en) * | 1986-07-30 | 1994-04-05 | Narco Avionics Inc | Portable navigational communications transceiver |
| US5041840A (en) * | 1987-04-13 | 1991-08-20 | Frank Cipolla | Multiple frequency antenna feed |
| US5255003B1 (en) * | 1987-10-02 | 1995-05-16 | Antenna Downlink Inc | Multiple-frequency microwave feed assembly |
| US4862187A (en) * | 1988-10-24 | 1989-08-29 | Microwave Components And Systems, Inc. | Dual band feedhorn with two different dipole sets |
| US5038151A (en) * | 1989-07-31 | 1991-08-06 | Loral Aerospace Corp. | Simultaneous transmit and receive antenna |
| DE19608622A1 (de) * | 1996-03-06 | 1997-09-11 | Sel Alcatel Ag | Antennenanordnung und Sende- und Empfangsanlage damit |
| US5990838A (en) * | 1996-06-12 | 1999-11-23 | 3Com Corporation | Dual orthogonal monopole antenna system |
| US6121939A (en) * | 1996-11-15 | 2000-09-19 | Yagi Antenna Co., Ltd. | Multibeam antenna |
| FR2773271B1 (fr) * | 1997-12-31 | 2000-02-25 | Thomson Multimedia Sa | Emetteur/recepteur d'ondes electromagnetiques |
| US6297782B1 (en) * | 2000-07-26 | 2001-10-02 | Gabriel Electronics Incorporated | Modular hub array antenna |
| CN103700924B (zh) * | 2013-12-05 | 2015-07-15 | 清华大学 | 圆极化角度分集天线 |
| CN107946746B (zh) * | 2017-10-16 | 2019-11-22 | 西安雷通科技有限责任公司 | Uhf/s双频段卫星通信天线及无线通信系统 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3205499A (en) * | 1956-08-30 | 1965-09-07 | Avco Mfg Corp | Dual polarized horn antenna |
| US3325817A (en) * | 1964-06-01 | 1967-06-13 | Hughes Aircraft Co | Dual frequency horn antenna |
-
1972
- 1972-04-14 US US00244158A patent/US3803617A/en not_active Expired - Lifetime
-
1973
- 1973-04-03 CA CA167,786A patent/CA977047A/en not_active Expired
- 1973-04-04 DE DE2316842A patent/DE2316842C3/de not_active Expired
- 1973-04-11 GB GB1738573A patent/GB1355030A/en not_active Expired
- 1973-04-11 BR BR732624A patent/BR7302624D0/pt unknown
- 1973-04-13 FR FR7313570A patent/FR2180114B1/fr not_active Expired
- 1973-04-13 JP JP48041489A patent/JPS5224369B2/ja not_active Expired
- 1973-04-13 IT IT49428/73A patent/IT988143B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5224369B2 (it) | 1977-06-30 |
| GB1355030A (en) | 1974-06-05 |
| DE2316842B2 (de) | 1978-05-24 |
| FR2180114A1 (it) | 1973-11-23 |
| BR7302624D0 (pt) | 1974-07-11 |
| DE2316842A1 (de) | 1973-10-18 |
| IT988143B (it) | 1975-04-10 |
| CA977047A (en) | 1975-10-28 |
| US3803617A (en) | 1974-04-09 |
| FR2180114B1 (it) | 1977-02-04 |
| DE2316842C3 (de) | 1979-01-18 |