CN102110907A - Dual-polarized television receiving antenna - Google Patents
Dual-polarized television receiving antenna Download PDFInfo
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- CN102110907A CN102110907A CN201010590495XA CN201010590495A CN102110907A CN 102110907 A CN102110907 A CN 102110907A CN 201010590495X A CN201010590495X A CN 201010590495XA CN 201010590495 A CN201010590495 A CN 201010590495A CN 102110907 A CN102110907 A CN 102110907A
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Abstract
The invention belongs to the technical field of television ground signal receiving antennas, and discloses an antenna receiving and emitting radio signals in a certain frequency band. The antenna comprises an electromagnetic wave radiating element (1-4), a reflection screen (1-1) and at least one director (1-2), wherein the electromagnetic wave radiating element of the antenna can receive level polarized waves and vertical polarized waves in a certain frequency bands; and the director is an electric conductor working in a specific frequency band and the plane in which the electric conductor is located and the maximal gain direction of the antenna are perpendicular to each other.
Description
Technical field
The invention belongs to TV ground signal reception antenna technical field.
Background technology
Usually, an antenna comprises 3 elementary cells: radiating element, reflector, one or more director, director are used for changing radiation field makes directivity stronger.Radio signal for commonly used at present can be divided into circularly polarized signal and linear polarization signal according to its polarization characteristic that has.The director of a common antenna and radiating element have determined antenna to transmit and receive the electromagnetic wave of which kind of polarised direction, Uda antenna can be used for transmitting and receiving line polarization wave, these antenna comprises a radiating element (half-wave dipole or folding oscillator) and is used for receiving the linear director (being generally metal bar) of line polarization wave, and reflector.Usually Yagi antenna has the shortcoming of itself: can not discern horizontal polarized wave and vertically polarized wave simultaneously, can only receive horizontally-polarized electromagnetic wave or can only receive the perpendicular polarization electromagnetic wave.
The terrestrial wireless signal of TV programme generally is distributed in the frequency range of VHF and UHF.The wireless signal that the TV signal launching tower emits is according to zone and TV station different, its polarization of ele direction difference.The horizontal polarization wireless signal is arranged, the wireless signal of perpendicular polarization is also arranged.Traditional Uda antenna, perhaps improved on its basis antenna can only receive horizontal polarized wave, perhaps can only receive vertically polarized wave.Thereby, received television signal that can not be best.The antenna user must use two antennas simultaneously for the signal that can receive horizontal polarization and the signal of perpendicular polarization; A horizontally-polarized antenna, a vertical polarized antenna.Also strengthened the difficulty that antenna is produced, the antenna of production must possess vertical installation and horizontal installation function, radiating element waterproof and antenna windproof aspect difficulty big.
Summary of the invention
Purpose of the present invention designs a antenna exactly, makes it can discern and receive horizontal polarized wave and vertically polarized wave simultaneously, makes it that bigger gain and directivity be arranged aspect received signal.This antenna of the present invention's design is made up of an electromagenetic wave radiation unit, some directors, a reflector and a support unit.
The electromagenetic wave radiation unit is made up of metal electromagnetic transducer and circuit board balun.Possesses the ability that receives horizontal polarized wave and vertically polarized wave.The metal electromagnetic transducer can be designed as the metallic conductor of a circle, and perhaps ± 45 ° quadrature metallic conductor constitutes.This metallic conductor electromagnetic transducer receives electromagnetic ability, can be divided into the polarization of vertical and horizontal both direction.Thereby this antenna electromagenetic wave radiation unit can receive the electromagnetic wave of horizontal polarization directions, also can receive the electromagnetic wave of perpendicular polarization.
Director is a conductor that is operated in operating frequency of antenna, and it is designed to the X-shaped shape, accepts level and vertical linearly polarized wave with it, and it is transmitted on the radiator, and plane, director place is vertical with antenna greatest irradiation direction.
Reflector is made up of netted metal covering, can be designed as planar structure and spherical structure.Size according to the operating frequency design reflectivity net of antenna.In the operating frequency of antenna scope, the electric property of reflector presents perception, can return reflection of electromagnetic wave to the electromagenetic wave radiation unit, increases the gain of antenna.
Description of drawings
The drawing of accompanying drawing is described as follows:
Fig. 1. provided the instance graph of this antenna
Fig. 2 has provided the radiator structure that can be used for this invention
Fig. 3 has provided the X-shaped configurations of directors
Fig. 4 has provided dissimilar reflector nets
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are described in further detail:
Designed antenna is the TV signal reception antenna that is operated in uhf band.Antenna is by support unit (1-3), radiating element (1-4), and director (1-2), reflector element (1-1) is formed.Radiating element (1-4) wherein, director (1-2), reflector element (1-1) all is assemblied on the support unit (1-3).Radiator (2-1) is a round conductor.Radiator (2-1) comprises ring shaped conductor (2-1-1), is an opening annulus, and diameter is 80mm, can receive horizontal polarization and vertically polarized wave.Ba Lun is placed in the plastic casing (2-1-5), utilizes Ba Lun can make ring shaped conductor radiator (2-1-1) and coaxial cable coupling, and radiator is connected by the F head connector with coaxial cable.Under the effect of the skyborne alternating electromagnetism ripple of ring shaped conductor (2-1-1) (electromagnetic transducer), on metallic conductor, produce the voltage and current of alternation.Current signal flows to feed mouth (2-1-4) coaxial cable by Ba Lun.Plastic stent (2-1-3), (2-1-2) is fixed on the main square tube by plastic fixtures.Director shown in Figure 3 is made of two metallic conductors of ± 45 ° (horizontal planes relatively), except receiving the horizontal and vertical lines polarized signal, also can receive circular polarization or elliptical polarization signal.Circular polarization or elliptically polarised wave can resolve into the line polarization wave of two quadratures (vertical and level), so also can synthesize a circularly polarised wave by two line polarization waves.Usually, the placement of director makes the structure centre of antenna along antenna axial direction, and the antenna axial direction direction is parallel with the greatest irradiation direction simultaneously.Director among Fig. 1 (1-2) on support unit (1-3) the position and the gain and the return loss value of antenna very big relation is arranged, its length is relevant with operating frequency of antenna.For an antenna that is operated in UHF (470-860MHz), director is formed by the cylindrical metal conductor quadrature of two 104mm, and first director is apart from the position 86mm of radiator, interval between several directors in back is respectively 112mm, 85mm, 90mm, 94mm, 75mm.Distance between reflector and the radiator is about 180mm.Figure 4 shows that reflector net, form that the size of reflector net is all obviously long a lot of than radiator, is inductive, can play the obstruction electromagnetic wave and pass through, and it is reflected back, and strengthens the antenna receiving signal ability by metallic conductor.Reflector net (4-1) is made of parallel several annulus (4-1-1), and (4-1-2) is fixed with metallic conductor, and circle diameter successively decreases successively.The line at the center of annulus is consistent with main square tube, and the center of minimum annulus is from the about 180mm in radiator position.Square reflector net (4-2) and circular reflector net (4-3) also can be used as the reflector element of antenna.
Except the satellite antenna emission is circularly polarised wave, terrestrial transmission gets TV signal and mostly is line polarization wave, but because the uncertainty in space, signal must be a level or vertical just when can not guarantee to accept, and all can more or less lose part energy for single level or vertical polarized antenna.The antenna that designs in the patent possesses the ability of the linearly polarized wave that receives any polarised direction, thereby the antenna of mentioning in the patent can be avoided the loss of part energy.
Claims (4)
1. the antenna that can receive horizontal polarized wave and vertically polarized wave simultaneously is made up of an electromagenetic wave radiation unit, some directors, a reflector and a support unit.
2. by right 1 said electromagnetic radiation unit, can be a round metal radiation device (2-1) or an X-shaped metallic radiator (2-2).The round metal radiation device is provided with an oscillator box by an opening annulus at opening part, and feeder line is connected on the oscillator box, links to each other with metal ring by Ba Lun.The X-shaped metallic radiator is mutually perpendicular metal bar director, can form angle at any angle with horizontal plane.Typical angle is that metal bar and horizontal plane form ± 45 ° angle.
3. press right 1 said director (1-2), two metal bar perpendicular quadratures.Vertical and the antenna maximum gain direction in the plane at two metal bar places.Also can be designed as two 90 ° V-type metal, the V-type metal is relative, an X-shaped of formation.
4. by right 1 said reflector, be designed to a netted spherical structure (4-1), can the reflected electromagnetic wave energy in the electromagenetic wave radiation device, increase the receiving gain of antenna.Reflector also can be arranged to circle (4-2) or square (4-3) network structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010590495XA CN102110907A (en) | 2010-12-15 | 2010-12-15 | Dual-polarized television receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010590495XA CN102110907A (en) | 2010-12-15 | 2010-12-15 | Dual-polarized television receiving antenna |
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| Publication Number | Publication Date |
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| CN102110907A true CN102110907A (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010590495XA Pending CN102110907A (en) | 2010-12-15 | 2010-12-15 | Dual-polarized television receiving antenna |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036073A (en) * | 2013-01-05 | 2013-04-10 | 广东通宇通讯股份有限公司 | Dual-frequency dual-polarized antenna |
| CN103346384A (en) * | 2013-06-15 | 2013-10-09 | 刘卫 | Diamond array digital television antenna and manufacturing method thereof |
| CN103579747A (en) * | 2013-10-25 | 2014-02-12 | 南京移动卫星通信工程技术研究发展中心 | Satellite communication handheld antenna |
| CN104466355A (en) * | 2013-09-18 | 2015-03-25 | 深圳光启创新技术有限公司 | Microstrip antenna and network bridge antenna |
| CN108023174A (en) * | 2016-10-28 | 2018-05-11 | 三星电机株式会社 | Antenna and the Anneta module for possessing antenna |
| CN108417965A (en) * | 2018-01-17 | 2018-08-17 | 深圳乐测物联网科技有限公司 | A kind of wireless signal Enhancement Method and a kind of wireless device |
| CN110036529A (en) * | 2016-10-18 | 2019-07-19 | At&T知识产权一部有限合伙公司 | For the device and method via antenna transmitting guided wave |
| CN112003005A (en) * | 2020-09-23 | 2020-11-27 | 卞国荣 | Variable polarization antenna unit |
| CN112397886A (en) * | 2020-11-06 | 2021-02-23 | 康威通信技术股份有限公司 | Narrow-beam directional antenna and preparation method thereof |
| CN114735558A (en) * | 2022-04-02 | 2022-07-12 | 日立楼宇技术（广州）有限公司 | Elevator system adopting radar ranging |
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2010
- 2010-12-15 CN CN201010590495XA patent/CN102110907A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036073A (en) * | 2013-01-05 | 2013-04-10 | 广东通宇通讯股份有限公司 | Dual-frequency dual-polarized antenna |
| CN103346384A (en) * | 2013-06-15 | 2013-10-09 | 刘卫 | Diamond array digital television antenna and manufacturing method thereof |
| CN103346384B (en) * | 2013-06-15 | 2015-10-14 | 刘卫 | A kind of diamond array digital television antenna and preparation method thereof |
| CN104466355A (en) * | 2013-09-18 | 2015-03-25 | 深圳光启创新技术有限公司 | Microstrip antenna and network bridge antenna |
| CN103579747A (en) * | 2013-10-25 | 2014-02-12 | 南京移动卫星通信工程技术研究发展中心 | Satellite communication handheld antenna |
| CN103579747B (en) * | 2013-10-25 | 2016-07-13 | 南京移动卫星通信工程技术研究发展中心 | A kind of satellite communication handheld antenna |
| CN110036529A (en) * | 2016-10-18 | 2019-07-19 | At&T知识产权一部有限合伙公司 | For the device and method via antenna transmitting guided wave |
| CN108023174A (en) * | 2016-10-28 | 2018-05-11 | 三星电机株式会社 | Antenna and the Anneta module for possessing antenna |
| US11024972B2 (en) | 2016-10-28 | 2021-06-01 | Samsung Electro-Mechanics Co., Ltd. | Antenna and antenna module including the antenna |
| US11482787B2 (en) | 2016-10-28 | 2022-10-25 | Samsung Electro-Mechanics Co., Ltd. | Antenna and antenna module including the antenna |
| CN108417965A (en) * | 2018-01-17 | 2018-08-17 | 深圳乐测物联网科技有限公司 | A kind of wireless signal Enhancement Method and a kind of wireless device |
| CN112003005A (en) * | 2020-09-23 | 2020-11-27 | 卞国荣 | Variable polarization antenna unit |
| CN112397886A (en) * | 2020-11-06 | 2021-02-23 | 康威通信技术股份有限公司 | Narrow-beam directional antenna and preparation method thereof |
| CN114735558A (en) * | 2022-04-02 | 2022-07-12 | 日立楼宇技术（广州）有限公司 | Elevator system adopting radar ranging |
| CN114735558B (en) * | 2022-04-02 | 2023-08-11 | 日立楼宇技术（广州）有限公司 | Elevator system adopting radar ranging |
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Application publication date: 20110629 |