JPS50119554A - - Google Patents
Info
- Publication number
- JPS50119554A JPS50119554A JP50004692A JP469275A JPS50119554A JP S50119554 A JPS50119554 A JP S50119554A JP 50004692 A JP50004692 A JP 50004692A JP 469275 A JP469275 A JP 469275A JP S50119554 A JPS50119554 A JP S50119554A
- 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
- 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
-
- 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
- H01Q1/425—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising a metallic grid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
- H01Q13/04—Biconical horns
Landscapes
- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7400413A NL7400413A (nl) | 1974-01-11 | 1974-01-11 | Antennereflectorsteun. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50119554A true JPS50119554A (https=) | 1975-09-19 |
| JPS5525732B2 JPS5525732B2 (https=) | 1980-07-08 |
Family
ID=19820541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP469275A Expired JPS5525732B2 (https=) | 1974-01-11 | 1975-01-09 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3978486A (https=) |
| JP (1) | JPS5525732B2 (https=) |
| CH (1) | CH578263A5 (https=) |
| DE (1) | DE2461369A1 (https=) |
| GB (1) | GB1459697A (https=) |
| NL (1) | NL7400413A (https=) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146869A (en) * | 1976-10-28 | 1979-03-27 | Bindicator Company | Ultrasonic antenna assembly |
| US4126866A (en) * | 1977-05-17 | 1978-11-21 | Ohio State University Research Foundation | Space filter surface |
| US4160254A (en) * | 1978-02-16 | 1979-07-03 | Nasa | Microwave dichroic plate |
| GB8812410D0 (en) * | 1988-05-25 | 1988-06-29 | Plessey Co Plc | Radar transparent materials |
| JPH0732326B2 (ja) * | 1991-05-21 | 1995-04-10 | 株式会社ロボテック研究所 | ファンビームアンテナ |
| JPH04344705A (ja) * | 1991-05-21 | 1992-12-01 | Robotec Kenkyusho:Kk | 無指向性アンテナ |
| CA2198969A1 (en) * | 1996-03-04 | 1997-09-04 | Andrew Corporation | Broadband omnidirectional microwave antenna with decreased sky radiation and with a simple means of elevation-plane pattern control |
| US6094174A (en) * | 1996-03-04 | 2000-07-25 | Andrew Corporation | Broadband omnidirectional microwave parabolic dish--shaped cone antenna |
| GB2326530B (en) * | 1997-04-22 | 2001-12-19 | Andrew Corp | A broadband omnidirectional microwave parabolic dish shaped cone antenna |
| US7283103B2 (en) * | 2004-05-04 | 2007-10-16 | Raytheon Company | Compact broadband antenna |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3761937A (en) * | 1972-05-11 | 1973-09-25 | Gen Dynamics Corp | Radio frequency transmitting apparatus having slotted metallic radio frequency windows |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2045398A (en) * | 1934-08-09 | 1936-06-23 | Massey Andrew | Radio antenna |
| US2645769A (en) * | 1947-06-05 | 1953-07-14 | Walter Van B Roberts | Continuous wave radar system |
| US3231892A (en) * | 1962-06-26 | 1966-01-25 | Philco Corp | Antenna feed system simultaneously operable at two frequencies utilizing polarization independent frequency selective intermediate reflector |
| US3787869A (en) * | 1972-10-11 | 1974-01-22 | Hughes Aircraft Co | Integrated beacon antenna polarization switch |
-
1974
- 1974-01-11 NL NL7400413A patent/NL7400413A/xx not_active Application Discontinuation
- 1974-12-24 DE DE19742461369 patent/DE2461369A1/de active Pending
- 1974-12-30 US US05/537,403 patent/US3978486A/en not_active Expired - Lifetime
-
1975
- 1975-01-09 CH CH19775A patent/CH578263A5/xx not_active IP Right Cessation
- 1975-01-09 JP JP469275A patent/JPS5525732B2/ja not_active Expired
- 1975-01-13 GB GB141375A patent/GB1459697A/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3761937A (en) * | 1972-05-11 | 1973-09-25 | Gen Dynamics Corp | Radio frequency transmitting apparatus having slotted metallic radio frequency windows |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7400413A (nl) | 1975-07-15 |
| DE2461369A1 (de) | 1975-07-24 |
| CH578263A5 (https=) | 1976-07-30 |
| GB1459697A (en) | 1976-12-22 |
| JPS5525732B2 (https=) | 1980-07-08 |
| US3978486A (en) | 1976-08-31 |