EP1680837A1 - Verfahren zum betreiben einer antennenanordnung - Google Patents
Verfahren zum betreiben einer antennenanordnungInfo
- Publication number
- EP1680837A1 EP1680837A1 EP04765645A EP04765645A EP1680837A1 EP 1680837 A1 EP1680837 A1 EP 1680837A1 EP 04765645 A EP04765645 A EP 04765645A EP 04765645 A EP04765645 A EP 04765645A EP 1680837 A1 EP1680837 A1 EP 1680837A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- partial
- signal
- arrangement
- antennas
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims description 16
- 238000004590 computer program Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000011156 evaluation Methods 0.000 claims description 5
- 238000003491 array Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/002—Antennas or antenna systems providing at least two radiating patterns providing at least two patterns of different beamwidth; Variable beamwidth antennas
-
- 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
Definitions
- the invention relates to a method for operating an antenna arrangement with a desired overall directional characteristic.
- the invention relates to a computer program for performing this method and a corresponding antenna arrangement itself.
- Antenna arrangements with at least a first and a second partial antenna are known in the prior art, the partial antennas being arranged relative to one another in such a way that their individual directional characteristics are at least partially superimposed.
- the first partial antenna is assigned a first antenna signal which represents the reception or transmission of a radio signal by the first partial antenna.
- the second partial antenna is assigned a second antenna signal, which represents the reception or transmission of the radio signal by the second partial antenna.
- Antenna arrangements of this type are known in the prior art, in particular in the form of icrostrip antennas, in which the partial antenna is in each case formed by arrays with a plurality of antenna elements, so-called patches.
- a directional characteristic with a narrow lobe is typically formed in that the antenna arrangements are formed over a large area with a large number of partial antennas.
- the sub-antennas are then operated simultaneously, the spatial superimposition of the individual directional characteristics of the individual sub-antennas then resulting in the slim lobe of the entire antenna arrangement.
- This object is achieved by the method claimed in claim 1.
- This method is characterized by the following steps: cyclically alternating operation of the first and second partial antennas and generation of a third antenna signal, which represents the radio signal on receipt or transmission by the antenna arrangement with the desired directional characteristic in the form of a superimposition of the individual directional characteristics of the partial antennas, by mathematical Link the first with the second antenna signal.
- the individual sub-antennas in the present invention are not operated simultaneously, but at different times. Strictly speaking, therefore, there is no simultaneous spatial overlay of their directional characteristics.
- the superposition instead takes place virtually simultaneously in the form of a mathematical link between the respective antenna signals of the individual partial antennas.
- This has the advantage that negative superposition components of the overall directional characteristic can also be taken into account in a simple manner, namely by subtracting the antenna signal of the corresponding partial antenna when generating the overall characteristic.
- the claimed procedure enables the generation of desired overall directivity characteristics with slim lobes in the Difference to the state of the art without much space and cost.
- the frequency with which switching between the individual partial antennas is advantageously selected in accordance with the dynamics of the radio signal such that essential parts of the radio signal can be detected not only by one, but, albeit with a time delay, by each of the partial antennas.
- the above-mentioned object is further achieved by a computer program and an antenna arrangement for carrying out the claimed method.
- the advantages of these two solutions essentially correspond to the advantages mentioned above with reference to the claimed method.
- at least one of the partial antennas has two rows of antenna elements arranged in parallel, which are preferably arranged at a distance of ⁇ / 2 from one another. Such an arrangement offers the advantage that otherwise existing side lobes are completely suppressed in the overall directional characteristic.
- FIG. 1 shows an embodiment of the antenna arrangement according to the invention
- FIGS. 2a and 2b show an example of a first individual directional characteristic of a first partial antenna
- FIGS. 3a and 3b show a second individual directional characteristic of a second partial antenna
- Figure 4 shows an example of an overall directional characteristic of the antenna arrangement according to the invention
- the invention is in the form of a
- FIG. 1 shows an exemplary embodiment of the antenna arrangement 100 according to the invention. It comprises a first partial antenna with a total of six individual antenna elements 110-1 ... 6, so-called patches. As shown in FIG. 1, the individual patches are spatially arranged in a row R1 and connected in parallel. This first sub-antenna is arranged symmetrically to a line 120. The antenna arrangement as a whole is connected via this line 120, and in particular the partial antennas are connected to a transmitting or receiving unit with an evaluation device (150).
- an evaluation device 150
- the antenna arrangement 100 In a first operating mode, in which the antenna arrangement 100 is operated only with the first partial antenna 110, only said antenna elements 110-1... -6 are activated. Alternatively or alternating cyclically, however, the antenna arrangement 100 can also be operated in a second operating mode with only a second partial antenna.
- This second partial antenna can either be designed and arranged completely separately from the first partial antenna or, as shown in FIG. 1, it consists of the first partial antenna with additional antenna elements 110 -7 ... -12 connected. The connection takes place via a control device comprising a control voltage source 130a and a suitable switching device 130b.
- the are switched on Antenna elements 110-7 ... -12 also electrically connected in parallel and arranged spatially in a second row R2, preferably parallel to the first row.
- the antenna arrangement according to the invention is preferably designed as a micro-trostrip patch antenna, the individual antenna elements 110-1 ... -12 forming the so-called patches.
- FIGS. 2a and b show the individual directional characteristic of the first partial antenna, comprising the first row R1 of antenna elements according to FIG. 1. This is a broad directional characteristic, that is to say a directional characteristic with broad control.
- FIGS. 3a and b show the individual directional characteristic of the second partial antenna, that is to say with simultaneous operation of the first and second rows R1, R2 of antenna elements, the two rows being arranged at a spatial distance of preferably ⁇ / 2 from one another. The electrical distance is an odd multiple of 180 °. This results in the desired indentation shown in FIGS. 3a and 3b in the individual directional characteristic of the second partial antenna.
- Figures 2b and 3b differ from Figures 2a and 3a only in such a way that the former show a perspective view and the latter show a plan view of the same directional characteristic. According to the invention, a desired one
- FIG. 4 The overall directional characteristics resulting from the mathematical combination when using the individual directional characteristics of the partial antennas shown in FIGS. 2 and 3 is shown in FIG. Compared to the broad directional characteristics shown in FIGS. 2 and 3, this is a slim characteristic. According to the invention, the slim characteristic according to FIG. 4 was therefore only generated from two broad characteristics. The two broad characteristics and thus the slim one
- the principle according to the present invention applies equally to receiving and transmitting antennas. It is equally suitable for narrowband as for broadband frequency operation.
- the evaluation device 150 is provided in the antenna arrangement according to the invention.
- the method according to the invention is advantageously implemented in the form of a computer program, preferably for this evaluation device 150.
- the Computer program can then optionally be stored together with other computer programs on a computer-readable data carrier.
- the data carrier can be a floppy disk, a compact disc, a flash memory or the like.
- the computer program stored on the data carrier can then be sold to a customer as a product. It is also possible for the computer program to be transmitted or sold as a product to a customer via an electronic communication network, in particular the Internet, without being stored on a data carrier.
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10352281A DE10352281A1 (de) | 2003-11-08 | 2003-11-08 | Verfahren zum Betreiben einer Antennenanordnung |
| PCT/EP2004/010826 WO2005053098A2 (de) | 2003-11-08 | 2004-09-28 | Verfahren zum betreiben einer antennenanordnung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1680837A1 true EP1680837A1 (de) | 2006-07-19 |
Family
ID=34559511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04765645A Withdrawn EP1680837A1 (de) | 2003-11-08 | 2004-09-28 | Verfahren zum betreiben einer antennenanordnung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070080862A1 (de) |
| EP (1) | EP1680837A1 (de) |
| DE (1) | DE10352281A1 (de) |
| WO (1) | WO2005053098A2 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431999A (en) * | 1978-12-18 | 1984-02-14 | The United States Of America As Represented By The Secretary Of The Army | Interference cancelling system using a notch and omnidirectional antenna |
| DE19917926B4 (de) * | 1998-04-23 | 2004-10-07 | Delphi Automotive Systems Deutschland Gmbh | Antennenanordnung |
| US6583760B2 (en) * | 1998-12-17 | 2003-06-24 | Metawave Communications Corporation | Dual mode switched beam antenna |
| DE10348226A1 (de) * | 2003-10-10 | 2005-05-04 | Valeo Schalter & Sensoren Gmbh | Radarsystem mit umschaltbarer Winkelauflösung |
| US7068211B2 (en) * | 2000-02-08 | 2006-06-27 | Cambridge Consultants Limited | Methods and apparatus for obtaining positional information |
| DE10261027A1 (de) * | 2002-12-24 | 2004-07-08 | Robert Bosch Gmbh | Winkelauflösendes Antennensystem |
-
2003
- 2003-11-08 DE DE10352281A patent/DE10352281A1/de not_active Ceased
-
2004
- 2004-09-28 WO PCT/EP2004/010826 patent/WO2005053098A2/de not_active Ceased
- 2004-09-28 EP EP04765645A patent/EP1680837A1/de not_active Withdrawn
- 2004-09-28 US US10/577,835 patent/US20070080862A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005053098A2 (de) | 2005-06-09 |
| DE10352281A1 (de) | 2005-06-09 |
| US20070080862A1 (en) | 2007-04-12 |
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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 |
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| 17P | Request for examination filed |
Effective date: 20060331 |
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| AK | Designated contracting states |
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| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20070327 |
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| APBN | Date of receipt of notice of appeal recorded |
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| APBR | Date of receipt of statement of grounds of appeal recorded |
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| APAF | Appeal reference modified |
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| APBT | Appeal procedure closed |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18W | Application withdrawn |
Effective date: 20090729 |