EP0212963A2 - Rundstrahlantenne - Google Patents
Rundstrahlantenne Download PDFInfo
- Publication number
- EP0212963A2 EP0212963A2 EP86306363A EP86306363A EP0212963A2 EP 0212963 A2 EP0212963 A2 EP 0212963A2 EP 86306363 A EP86306363 A EP 86306363A EP 86306363 A EP86306363 A EP 86306363A EP 0212963 A2 EP0212963 A2 EP 0212963A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- lens
- reflector
- array
- rays
- Prior art date
- 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.)
- Withdrawn
Links
Images
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
- H01Q19/06—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 refracting or diffracting devices, e.g. lens
- H01Q19/062—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 refracting or diffracting devices, e.g. lens for focusing
-
- 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
- H01Q15/23—Combinations of reflecting surfaces with refracting or diffracting devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device
Definitions
- an omni-directional lens has perfect circular symmetry in azimuth (Fig. la) and Fig. lb shows the extent to which parallel rays are focussed by such an arrangement viewed in vertical section.
- a dielectric constant ( E) of greater than 4 the radial distance (l) at which rays cross the undiffracted ray which passes through the centre of the lens, is given by
- the surface In elevation the surface may be shaped as desired but an ellipse is convenient since this provides a well focussed beam over a range of elevation angles.
- a ray diagram is shown in Fig. lb.
- a lens as shown in Fig. 1 is not immediately useful because the focal surface is buried inside the lens and cannot be accessed without interfering with the ray paths.
- the focal surface is curved which means that the lens cannot be used directly with a planar array of signal detection elements.
- an antenna providing up to 360° in azimuth for electromagnetic radiation comprising a dielectric lens and a cooperating reflector arrangement arranged to feed a surface array.
- an omni-directional antenna for electromagnetic rays comprising a rotationally-symmetric dielectric lens, a cooperating rotationally-symmetric reflecting surface, and a surface array of elements arranged at the surfacial focus of the combined lens and reflecting surface.
- Fig. 4 shows a modification to the basic lens of Fig. 2.
- the modified antenna has a cusp-shaped reflector 10 which does not interfere with the rays 4, and which focusses local oscillator power from a TMOl mode horn 11. Otherwise the antenna is as described in Fig. 2.
- This allows local oscillator (LO) power to be fed to the elements.
- LO local oscillator
- a single horn 11 supporting the TMO1 mode is used to illuminate the central conical (cusp-like) reflector 10 as shown.
- the TMO1 mode gives rise to a circularly symmetric pattern with a null on boresight.
- the reflector 10 is shaped to direct the LO energy onto the annulus of elements in the array plane.
- the virtual focal line 35 is not at right angles to the hyperbolic axis 34. So as elevation is scanned, defocussing occurs so the arrangement is preferred for a chosen elevation or small range of elevations.
- the discussion above regards the antenna as a quasi-optical system: that is to say the rays of electromagnetic energy are regarded as if they were light rays in a true optical system.
- the lens diameter needs to be about ten wavelengths or more for this analogy to hold true.
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8520815 | 1985-08-20 | ||
GB8520815 | 1985-08-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0212963A2 true EP0212963A2 (de) | 1987-03-04 |
EP0212963A3 EP0212963A3 (de) | 1988-08-10 |
Family
ID=10584038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86306363A Withdrawn EP0212963A3 (de) | 1985-08-20 | 1986-08-18 | Rundstrahlantenne |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0212963A3 (de) |
JP (1) | JPS62110303A (de) |
IL (1) | IL79773A0 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0859428A2 (de) * | 1996-12-20 | 1998-08-19 | AT&T Corp. | Zusammengesetzte Dachantenne für terrestrischen-und satelliten Empfang |
WO2007136289A1 (en) | 2006-05-23 | 2007-11-29 | Intel Corporation | Millimeter-wave chip-lens array antenna systems for wireless networks |
US8149178B2 (en) | 2006-05-23 | 2012-04-03 | Intel Corporation | Millimeter-wave communication system with directional antenna and one or more millimeter-wave reflectors |
EP2471296A1 (de) * | 2009-08-28 | 2012-07-04 | Belair Networks Inc. | Kuppelantenne für wlan- oder mobile anwendungen |
US8320942B2 (en) | 2006-06-13 | 2012-11-27 | Intel Corporation | Wireless device with directional antennas for use in millimeter-wave peer-to-peer networks and methods for adaptive beam steering |
WO2021144626A1 (en) * | 2020-01-17 | 2021-07-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Mmwave dielectric waveguide beam former/redirector |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1917675A1 (de) * | 1969-04-05 | 1970-10-15 | Deutsche Bundespost | Dielektrische Rundstrahlantenne |
FR2334216A1 (fr) * | 1975-12-05 | 1977-07-01 | Thomson Csf | Antenne omnidirectionnelle a large bandepassante |
DE2614133A1 (de) * | 1976-04-01 | 1977-10-06 | Siemens Ag | Antennenanordnung mit veraenderbarer abstrahlrichtung |
US4682179A (en) * | 1985-05-03 | 1987-07-21 | The United States Of America As Represented By The Secretary Of The Army | Omnidirectional electromagnetic lens |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5233939B2 (de) * | 1971-09-30 | 1977-08-31 | ||
JPS5237906B2 (de) * | 1972-07-13 | 1977-09-26 | ||
JPS5020644A (de) * | 1973-06-22 | 1975-03-05 | ||
JPS5834961B2 (ja) * | 1975-06-05 | 1983-07-30 | 三菱電機株式会社 | ムシコウセイアンテナ |
US4333082A (en) * | 1980-03-31 | 1982-06-01 | Sperry Corporation | Inhomogeneous dielectric dome antenna |
-
1986
- 1986-08-18 EP EP86306363A patent/EP0212963A3/de not_active Withdrawn
- 1986-08-19 IL IL79773A patent/IL79773A0/xx unknown
- 1986-08-20 JP JP61195145A patent/JPS62110303A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1917675A1 (de) * | 1969-04-05 | 1970-10-15 | Deutsche Bundespost | Dielektrische Rundstrahlantenne |
FR2334216A1 (fr) * | 1975-12-05 | 1977-07-01 | Thomson Csf | Antenne omnidirectionnelle a large bandepassante |
DE2614133A1 (de) * | 1976-04-01 | 1977-10-06 | Siemens Ag | Antennenanordnung mit veraenderbarer abstrahlrichtung |
US4682179A (en) * | 1985-05-03 | 1987-07-21 | The United States Of America As Represented By The Secretary Of The Army | Omnidirectional electromagnetic lens |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0859428A2 (de) * | 1996-12-20 | 1998-08-19 | AT&T Corp. | Zusammengesetzte Dachantenne für terrestrischen-und satelliten Empfang |
EP0859428A3 (de) * | 1996-12-20 | 2000-03-29 | AT&T Corp. | Zusammengesetzte Dachantenne für terrestrischen-und satelliten Empfang |
CN101427422B (zh) * | 2006-05-23 | 2013-08-07 | 英特尔公司 | 用于无线网络的毫米波片透镜阵列天线系统 |
CN101427422A (zh) * | 2006-05-23 | 2009-05-06 | 英特尔公司 | 用于无线网络的毫米波片透镜阵列天线系统 |
US8149178B2 (en) | 2006-05-23 | 2012-04-03 | Intel Corporation | Millimeter-wave communication system with directional antenna and one or more millimeter-wave reflectors |
US8193994B2 (en) | 2006-05-23 | 2012-06-05 | Intel Corporation | Millimeter-wave chip-lens array antenna systems for wireless networks |
US8395558B2 (en) | 2006-05-23 | 2013-03-12 | Intel Corporation | Millimeter-wave reflector antenna system and methods for communicating using millimeter-wave signals |
WO2007136289A1 (en) | 2006-05-23 | 2007-11-29 | Intel Corporation | Millimeter-wave chip-lens array antenna systems for wireless networks |
US8320942B2 (en) | 2006-06-13 | 2012-11-27 | Intel Corporation | Wireless device with directional antennas for use in millimeter-wave peer-to-peer networks and methods for adaptive beam steering |
EP2471296A1 (de) * | 2009-08-28 | 2012-07-04 | Belair Networks Inc. | Kuppelantenne für wlan- oder mobile anwendungen |
EP2471296A4 (de) * | 2009-08-28 | 2014-08-13 | Belair Networks Inc | Kuppelantenne für wlan- oder mobile anwendungen |
EP3352294A1 (de) * | 2009-08-28 | 2018-07-25 | Ericsson WiFi Inc. | Kuppelantenne für wlan- oder zellulare anwendung |
WO2021144626A1 (en) * | 2020-01-17 | 2021-07-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Mmwave dielectric waveguide beam former/redirector |
Also Published As
Publication number | Publication date |
---|---|
IL79773A0 (en) | 1986-11-30 |
EP0212963A3 (de) | 1988-08-10 |
JPS62110303A (ja) | 1987-05-21 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): CH DE FR GB IT LI NL SE |
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PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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17P | Request for examination filed |
Effective date: 19881208 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19910301 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MCEWEN, COLIN DOUGAL Inventor name: PEARSON, ALAN Inventor name: NORRIS, ANDREW PETER Inventor name: WADDOUP, WILLIAM DAVID |