CN102780069A - Receiving antenna with asymmetric response to incidence direction of electromagnetic waves - Google Patents
Receiving antenna with asymmetric response to incidence direction of electromagnetic waves Download PDFInfo
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- CN102780069A CN102780069A CN2011101179570A CN201110117957A CN102780069A CN 102780069 A CN102780069 A CN 102780069A CN 2011101179570 A CN2011101179570 A CN 2011101179570A CN 201110117957 A CN201110117957 A CN 201110117957A CN 102780069 A CN102780069 A CN 102780069A
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Abstract
The invention relates to a receiving antenna with an asymmetric response to the incidence direction of electromagnetic waves, belonging to the technical field of the electromagnetic waves. The main body part of the receiving antenna comprises a wire, a diode and a resistor, wherein the wire accepts irradiation of the electromagnetic waves. The wire per se is of a geometric figure, and the wire per se can be a plane line segment or a solid line segment. The geometric figure is not axially symmetrical about a midperpendicular of a connecting line between two endpoints of the wire. This point is one of the main characteristics of the receiving antenna different from other similar antennas. The fundamental difference of the functions of the receiving antenna and the other similar antennas is caused by the point, namely the output of the antenna is asymmetrical about a rotational angle. A circuit is led out from the two endpoints of the wire to enter into a blocking material for connection, and two output ends are led out from connecting points, wherein one output end is output through the diode, and the other output end is output through the resistor. During work, the electromagnetic waves irradiate the wire. When the wire rotates in situ, the output of the receiving antenna is asymmetrical about the rotational angle in the process that the wire rotates anticlockwise and clockwise. For example, when the wire rotates for a positive 30 degrees and a negative 30 degrees, the output of the antenna is unequal (suppose an anticlockwise rotated angle is positive, and a clockwise rotated angle is negative).
Description
Goal of the invention the present invention relates to a kind of the electromagnetic wave incident direction is had the reception antenna of asymmetric response, and this antenna exposed parts is one section metal wire, accepts electromagnetic wave irradiation.When metal wire when a certain axle is made original position and is rotated, metal wire along counterclockwise with clockwise rotate that the output of reception antenna is asymmetric about angle of rotation in the process.Can utilize such characteristic that indexs such as electromagnetic wave arrival direction are detected, and simplify checkout equipment and method.
There is the demand that electromagnetic wave is received and detects in background technology in the plurality of applications field; Wherein, Existing wire antenna technology is directly utilized the polarization of ele effect and is worked, and generally antenna has maximum output signal when polarization of ele is consistent with the wire antenna direction.The wire antenna technology is widely used through years of development, can satisfy the demand of most application scenarios basically.But also there is following problem: in some application scenario; When the electromagnetic wave arrival direction being detected such as the employing aerial array; Hope that reception antenna has asymmetric response output to the electromagnetic wave arrival direction; And the variation to the electromagnetic wave arrival direction has higher detection sensitivity, so that simplify equipment and the method that the electromagnetic wave arrival direction is detected, and reduces and detects cost.The response output of existing wire type antenna is symmetrical about the electromagnetic wave arrival direction perhaps, perhaps to the variation of electromagnetic wave arrival direction responsive inadequately (just polarization being changed sensitivity), can't satisfy above-mentioned requirements.
Result for retrieval shows, do not find to bibliographical information the problems referred to above, that the electromagnetic wave incident direction had the reception antenna of asymmetric response.The present invention adopts specially designed antenna, addresses the above problem.
Summary of the invention the purpose of this invention is to provide a kind ofly has the reception antenna of asymmetric response to the electromagnetic wave incident direction, and the simple antenna structure that it utilizes metal wire, diode and resistance to combine realizes the electromagnetic wave incident direction is had the characteristic of asymmetric response.
The present invention addresses the above problem the technical scheme that is adopted: a kind of reception antenna that the electromagnetic wave incident direction is had asymmetric response; Its main part comprises one section metal wire, a diode and a resistance; Wherein diode or resistance can dispose, and also can not dispose.Metal wire is accepted electromagnetic wave irradiation.Metal wire itself is rendered as a geometric figure, and metal wire itself can be a plane line-segment, also can be a three-dimensional line segment; This geometric figure is not about the perpendicular bisector of the line of two end points of metal wire not axisymmetricly.This point is that this reception antenna is different from one of principal character of other similar antennas, and also this point difference causes the essence difference of their functions just, and promptly the output of antenna is asymmetric about angle of rotation.Draw circuit from two end points of metal wire and get in the barrier material and connect, draw two outputs from tie point; One of them output is through a diode (or not disposing diode) output, and another output is exported through a resistance (or not disposing resistance).Make the electromagnetic wave irradiation metal wire during work; When metal wire is done the original position rotation; Metal wire along counterclockwise with clockwise rotate that the output of reception antenna is asymmetric about angle of rotation in the process; Such as, rotate positive 30 degree and negative 30 antenna output unequal (supposition rotates counterclockwise angle for just, clockwise rotates angle for bearing) when spending.
The invention has the beneficial effects as follows: this antenna has asymmetric response to the electromagnetic wave incident direction; Can be applicable on the equipment such as responsive reception of electromagnetic incident direction, polarised direction and detection; Make device structure and detection method be able to simplify; And reduce cost, such as the equipment that can be applicable to survey the electromagnetic wave arrival direction.This antenna structure is simple, is convenient to make, and cost is low, and is easy to use, helps practical application.
Hereinafter combines accompanying drawing and embodiment that the present invention is further specified.
Fig. 1 is the front view (cutaway view) of first embodiment structure of the present invention.
Fig. 2 is the left view of first embodiment structure of the present invention.
Fig. 3 is the front view (cutaway view) of second embodiment structure of the present invention.
Fig. 4 is the left view of second embodiment structure of the present invention.
1. metal wires among the figure, 2. diode, 3. output, 4. barrier material, 5. outer face, 6. resistance, 7. end points.
Embodiment the objective of the invention is to realize like this: be fixed on metal wire on the outer face of barrier material, barrier material can be different shape and structure, as long as can play the effect of blocking and little to the influence of antenna reception.Metal wire on the barrier material outer face is accepted electromagnetic wave irradiation, and diode that is connected with metal wire and resistance are arranged in barrier material inside, avoid electromagnetic wave irradiation.Above structure is promptly formed the reception antenna that the electromagnetic wave incident direction is had asymmetric response
In embodiment illustrated in figures 1 and 2; Metal wire 1 is plane triangle (lacking on one side); This plane triangle about the perpendicular bisector of the line of two end points 7 not axisymmetricly, this just causes the output of antenna asymmetric about corner, and output has higher sensitivity to the variation of corner; Metal wire 1 is fixed on the outer face 5 of barrier material 4; Draw 4 inner connections of circuit entering barrier material respectively from two end points 7 of metal wire 1; Draw in 3, two outputs 3 of two outputs one through diode 2 outputs from tie point, another is through resistance 6 outputs.Make electromagnetic wave irradiation metal wire 1 during work, when making original position in the plane of metal wire 1 at its place and rotate (remaining part is followed rotations), along counterclockwise and clockwise rotate that the output of reception antenna is asymmetric about corner in the process.Rotate such as, reception antenna, when making the perpendicular bisector of the line of two end points 7 depart from the positive θ degree of electromagnetic wave incident direction and negative θ respectively to spend, the output of antenna unequal (supposition rotates counterclockwise angle for just, clockwise rotates angle for bearing).
In Fig. 3 and embodiment shown in Figure 4; Metal wire 1 is plane fan-shaped (lacking on one side); The perpendicular bisector of the fan-shaped line about two end points 7 in this plane not axisymmetricly, this just causes the output of antenna asymmetric about corner, and output has higher sensitivity to the variation of corner; Metal wire 1 is fixed on the outer face 5 of barrier material 4; Draw 4 inner connections of circuit entering barrier material respectively from two end points 7 of metal wire 1; Draw in 3, two outputs 3 of two outputs one through diode 2 outputs from tie point, another is through resistance 6 outputs.Make electromagnetic wave irradiation metal wire 1 during work, when making original position in the plane of metal wire 1 at its place and rotate, along counterclockwise with clockwise rotate that the output of reception antenna is asymmetric about corner in the process.Rotate such as, reception antenna, when making the perpendicular bisector of the line of two end points 7 depart from the positive θ degree of electromagnetic wave incident direction and negative θ respectively to spend, the output of antenna unequal (supposition rotates counterclockwise angle for just, clockwise rotates angle for bearing).
Claims (5)
1. one kind has the reception antenna of asymmetric response to the electromagnetic wave incident direction, and it is characterized in that: the reception antenna main part comprises a metal wire, a diode and a resistance, and metal wire is exposed under the electromagnetic wave irradiation.Draw circuit from the two ends of metal wire and get in the barrier material and connect, draw two outputs from tie point; One of them output is through a diode (or not disposing diode) output, and another output is exported through a resistance (or not disposing resistance).Metal wire itself is rendered as a geometric figure, and this geometric figure is not about the perpendicular bisector of the line of two end points of metal wire not axisymmetricly.This point is the principal character that this reception antenna is different from other similar antennas, and also this point difference causes the essence difference of their functions just, and promptly the output of antenna is asymmetric about the anglec of rotation.
2. a kind of reception antenna that the electromagnetic wave incident direction is had asymmetric response according to claim 1; It is characterized in that: barrier material can be different shape and structure; As long as can play the effect of blocking and little to the influence of antenna reception; Such as being two-layer thin slice, folder circuit is between two-layer thin slice.
3. according to claim 1 a kind ofly have the reception antenna of asymmetric response to the electromagnetic wave incident direction, and it is characterized in that: the cross section of metal wire can be a different shape, can be the line of film like such as metal wire.
4. according to claim 1 a kind ofly have the reception antenna of asymmetric response to the electromagnetic wave incident direction, and it is characterized in that: the shape that is exposed to metal wire under the electromagnetic wave irradiation can be arbitrary shapes such as straight line, triangle, rectangle, camber line, polygon.Metal wire itself can be a plane line-segment, also can be a three-dimensional line segment.
5. according to claim 1 a kind ofly have the reception antenna of asymmetric response to the electromagnetic wave incident direction, and it is characterized in that: wherein diode or resistance can dispose, and also can not dispose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101179570A CN102780069A (en) | 2011-05-09 | 2011-05-09 | Receiving antenna with asymmetric response to incidence direction of electromagnetic waves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101179570A CN102780069A (en) | 2011-05-09 | 2011-05-09 | Receiving antenna with asymmetric response to incidence direction of electromagnetic waves |
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| CN102780069A true CN102780069A (en) | 2012-11-14 |
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| CN2011101179570A Pending CN102780069A (en) | 2011-05-09 | 2011-05-09 | Receiving antenna with asymmetric response to incidence direction of electromagnetic waves |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4303818A (en) * | 1979-10-29 | 1981-12-01 | General Electric Company | Microwave oven humidity sensing arrangement |
| CN1261143A (en) * | 1999-01-14 | 2000-07-26 | 三星电子株式会社 | Microwave oven |
| CN101194392A (en) * | 2005-04-06 | 2008-06-04 | 法雷奥保险柜有限公司 | Orthogonal loop radiofrequency antenna device |
-
2011
- 2011-05-09 CN CN2011101179570A patent/CN102780069A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4303818A (en) * | 1979-10-29 | 1981-12-01 | General Electric Company | Microwave oven humidity sensing arrangement |
| CN1261143A (en) * | 1999-01-14 | 2000-07-26 | 三星电子株式会社 | Microwave oven |
| CN101194392A (en) * | 2005-04-06 | 2008-06-04 | 法雷奥保险柜有限公司 | Orthogonal loop radiofrequency antenna device |
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Application publication date: 20121114 |