CN102868017A - Radiation device and array antenna based on same - Google Patents
Radiation device and array antenna based on same Download PDFInfo
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- CN102868017A CN102868017A CN2012103197582A CN201210319758A CN102868017A CN 102868017 A CN102868017 A CN 102868017A CN 2012103197582 A CN2012103197582 A CN 2012103197582A CN 201210319758 A CN201210319758 A CN 201210319758A CN 102868017 A CN102868017 A CN 102868017A
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Abstract
The invention discloses a radiation device and an array antenna based on the radiation device. The low-frequency radiation device comprises a first low-frequency radiation module and a second low-frequency radiation module, wherein the first low-frequency radiation module is subjected to -45-degree polarization and the second low-frequency radiation module is subjected to +45-degree polarization; the first low-frequency radiation module and the second low-frequency radiation module are symmetrically, orthogonally and fixedly connected; and open circuit branches for preventing high-frequency electromagnetic waves from being transmitted in the low-frequency radiation device are respectively arranged at one sides of the axial centers of the first low-frequency radiation module and the second low-frequency radiation module. With the adoption of the radiation device and the array antenna, the abnormal-frequency interference can be reduced and the receiving-transmitting performance of the antenna is improved.
Description
Technical field
The present invention relates to the antenna of mobile communication base station technology, relate in particular to a kind of radiation appliance and based on the array antenna of radiation appliance.
Background technology
Along with the propelling of new and high technology and economic benefit, communications industry has become one of industry of largest domestic.The develop rapidly of the mobile communication in the communications industry, make it in user's daily life, bring into play more and more important effect, at the beginning of 2010, China's tracking exchage amount surpasses 7.36 hundred million, and the antenna for base station that comes into operation surpasses 1,000,000 pairs, and, continuous increase along with mobile communication business and kind, the mobile communication working frequency range of various standards is thereupon constantly expansion also, causes the volume of antenna constantly to increase, structure is increasingly sophisticated, and cost is also more and more higher.
In the present mobile communication, the coexistence of the wireless system of the multiple types such as the second generation, the third generation, rear three generations and WLAN/WiMAX, therefore, the antenna that needs to have now in the wireless system can compatible multiple types and miniaturized structure.
Existing wireless system, antenna mainly comprises coaxial double frequency or the multifrequency antenna of miniaturization, adopt common microstrip structure or half-wave radiation apparatus structure, combined by bowl-shape combination radiation device or little band radiation appliance and the symmetrical radiation appliance of half-wave, consider the E face directional diagram performance (spacing is paid the utmost attention to 0.7～0.95 operation wavelength between the aerial radiation device) of antenna, thereby, when carrying out double frequency or multifrequency antenna array, distance between the low-and high-frequency radiation appliance of antenna is less, even the radiation arm that the low frequency radiation device may occur blocks the situation of high frequency radiation device, stronger electromagnetic coupled appears between two kinds of oscillators (low frequency radiation device and high frequency radiation device) of common microstrip structure or half-wave radiation apparatus structure so that adopt, the electromagnetic wave that causes radiateing is subject to the serious interference of the opposing party's (low frequency radiation device or high frequency radiation device), namely produce alien frequencies and disturb, thus so that the transmitting-receiving hydraulic performance decline of antenna.
Summary of the invention
Embodiments of the invention provide a kind of radiation appliance, reduce the transmitting-receiving performance that alien frequencies disturbs, promotes antenna.
Embodiments of the invention provide a kind of array antenna based on radiation appliance, reduce the transmitting-receiving performance that alien frequencies disturbs, promotes antenna.
For achieving the above object, a kind of low frequency radiation device that the embodiment of the invention provides comprises: the first low frequency radiation module and the second low frequency radiation module, wherein,
The first low frequency radiation module is carried out-45 ° of polarization, the second low frequency radiation module is carried out+45 ° of polarization, the first low frequency radiation module and the second low frequency radiation module Orthogonal Symmetric are fixed together, in axial centre one side of the first low frequency radiation module and the second low frequency radiation module, be respectively arranged with and suppress the open circuit minor matters that frequency electromagnetic waves transmits in the low frequency radiation device.
Described the first low frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove button and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the first low frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at the side of balance Ba Lunnei, and an end links to each other with feeder cable, and the other end extends in the first oscillator arms, is connected to the coupling circuit at the first low frequency radiation module back side by being arranged on metallic vias in the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove button that connects the second low frequency radiation module;
At the opposite side of the balance Ba Lunnei that coupling circuit is arranged, be provided with the open circuit minor matters.
Described open circuit minor matters are
Shape.
Described the first low frequency radiation module further comprises:
Supporter, symmetry are installed on balance Ba Lun both sides, and an end and the second oscillator arms are connected, and the other end and balance Ba Lun are connected.
Angle between described supporter and the balance Ba Lun is 45 °.
Obverse and reverse both sides in the first low frequency radiation module arrange respectively the open circuit minor matters, and described open circuit minor matters are parallel to axial direction and arrange.
In the same side of the first low frequency radiation module, two open circuit minor matters are set, described two open circuit minor matters are
Shape is parallel to axial direction and arranges.
Described the first low frequency radiation module and the second low frequency radiation module are dielectric printing oscillator, wire half-wave dipole or metal oscillator.
Described the second low frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the second low frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at the side of balance Ba Lunnei, and an end links to each other with feeder cable, and the other end extends in the first oscillator arms, is connected to the coupling circuit at the first low frequency radiation module back side by being arranged on metallic vias in the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove that connects the first low frequency radiation module;
At the opposite side of the balance Ba Lunnei that coupling circuit is arranged, be provided with the open circuit minor matters.
The electrical length of described open circuit minor matters is set to 0.25 high-frequency work wavelength.
A kind of high frequency radiation device, this device comprises: the first high frequency radiation module and the second high frequency radiation module, wherein,
The first high frequency radiation module is carried out-45 ° of polarization, the second high frequency radiation module is carried out+45 ° of polarization, the first high frequency radiation module and the second high frequency radiation module Orthogonal Symmetric are fixed together, in axial centre one side of the first high frequency radiation module and the second high frequency radiation module, be respectively arranged with and suppress the open circuit minor matters that low-frequency electromagnetic wave transmits in the high frequency radiation device.
Described the first high frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove button and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the first high frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at balance Ba Lunnei, and an end links to each other with feeder cable in a side at balance Ba Lun center, and the other end extends to the opposite side at balance Ba Lun center by the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove button that connects the second high frequency radiation module;
Both sides at balance Ba Lun center are respectively arranged with the open circuit minor matters, and described open circuit minor matters link to each other by the metallic vias that is arranged on open circuit minor matters end.
Both sides at balance Ba Lun center, each side are provided with two open circuit minor matters, and two open circuit minor matters that each side arranges sequentially link to each other.
The electrical length of described open circuit minor matters is 0.25 low frequency operation wavelength.
A kind of array antenna based on the high frequency radiation device, this array antenna comprises: low frequency radiation device, high frequency radiation device and reflecting plate, wherein,
Equidistantly arrange between the low frequency radiation device, the high frequency radiation device is symmetric arrays centered by each low frequency radiation device, and low frequency radiation device and high frequency radiation device in axial direction are installed on the reflecting plate;
Be provided with the open circuit minor matters of transmitting at the low frequency radiation device for suppressing frequency electromagnetic waves on the low frequency radiation device; And/or,
Be provided with the open circuit minor matters of transmitting at the high frequency radiation device for suppressing low-frequency electromagnetic wave on the high frequency radiation device.
Between the described low frequency radiation device equidistantly is 0.65～0.85 low frequency operation wavelength, and between the described high frequency radiation device equidistantly is 0.65～0.95 high-frequency work wavelength.
The electrical length of the described open circuit minor matters that arrange in the described low frequency radiation device is set to 0.25 high-frequency work wavelength;
The electrical length of the described open circuit minor matters that arrange in the described high frequency radiation device is 0.25 low frequency operation wavelength.
Described low frequency radiation device comprises: the first low frequency radiation module and the second low frequency radiation module, wherein,
The first low frequency radiation module is carried out-45 ° of polarization, the second low frequency radiation module is carried out+45 ° of polarization, the first low frequency radiation module and the second low frequency radiation module Orthogonal Symmetric are fixed together, in axial centre one side of the first low frequency radiation module and the second low frequency radiation module, be respectively arranged with and suppress the open circuit minor matters that frequency electromagnetic waves transmits in the low frequency radiation device.
Described the first low frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove button and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the first low frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at the side of balance Ba Lunnei, and an end links to each other with feeder cable, and the other end extends in the first oscillator arms, is connected to the coupling circuit at the first low frequency radiation module back side by being arranged on metallic vias in the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove button that connects the second low frequency radiation module;
At the opposite side of the balance Ba Lunnei that coupling circuit is arranged, be provided with the open circuit minor matters.
Described the first low frequency radiation module further comprises:
Supporter, symmetry are installed on balance Ba Lun both sides, and an end and the second oscillator arms are connected, and the other end and balance Ba Lun are connected.
Described the second low frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the second low frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at the side of balance Ba Lunnei, and an end links to each other with feeder cable, and the other end extends in the first oscillator arms, is connected to the coupling circuit at the first low frequency radiation module back side by being arranged on metallic vias in the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove that connects the first low frequency radiation module;
At the opposite side of the balance Ba Lunnei that coupling circuit is arranged, be provided with the open circuit minor matters.
Described high frequency radiation device comprises: the first high frequency radiation module and the second high frequency radiation module, wherein,
The first high frequency radiation module is carried out-45 ° of polarization, the second high frequency radiation module is carried out+45 ° of polarization, the first high frequency radiation module and the second high frequency radiation module Orthogonal Symmetric are fixed together, in axial centre one side of the first high frequency radiation module and the second high frequency radiation module, be respectively arranged with and suppress the open circuit minor matters that low-frequency electromagnetic wave transmits in the high frequency radiation device.
Described the first high frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove button and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the first high frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at balance Ba Lunnei, and an end links to each other with feeder cable in a side at balance Ba Lun center, and the other end extends to the opposite side at balance Ba Lun center by the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove button that connects the second high frequency radiation module;
Both sides at balance Ba Lun center are respectively arranged with the open circuit minor matters, and described open circuit minor matters link to each other by the metallic vias that is arranged on open circuit minor matters end.
As seen from the above technical solution, a kind of radiation appliance that the embodiment of the invention provides reaches the array antenna based on radiation appliance, the low frequency radiation device comprises: the first low frequency radiation module and the second low frequency radiation module, wherein, the first low frequency radiation module is carried out-45 ° of polarization, the second low frequency radiation module is carried out+45 ° of polarization, the first low frequency radiation module and the second low frequency radiation module Orthogonal Symmetric are fixed together, in axial centre one side of the first low frequency radiation module and the second low frequency radiation module, be respectively arranged with and suppress the open circuit minor matters that frequency electromagnetic waves transmits in the low frequency radiation device.Like this, by in the low frequency radiation device, increasing the open circuit minor matters, thereby reduce low-frequency range to the impact of high band, suppress the transmission of frequency electromagnetic waves in the low frequency radiation device, effectively reduce the frequency electromagnetic waves impact on the high-frequency electrical performance characteristic that secondary radiation produces in the low frequency radiation device, effectively reduce the alien frequencies interference, thereby promoted the transmitting-receiving performance of antenna.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art.Apparently, the accompanying drawing in below describing only is some embodiments of the present invention, for those of ordinary skills, can also obtain according to these accompanying drawing illustrated embodiments other embodiment and accompanying drawing thereof.
Fig. 1 is embodiment of the invention low frequency radiation device perspective view.
Fig. 2 is the embodiment of the invention the first low frequency radiation module master TV structure schematic diagram.
Fig. 3 is the embodiment of the invention the first low frequency radiation module backsight structural representation.
Fig. 4 is another main TV structure schematic diagram of the embodiment of the invention the first low frequency radiation module.
Fig. 5 is the embodiment of the invention the second low frequency radiation module master TV structure schematic diagram.
Fig. 6 is the embodiment of the invention the second low frequency radiation module backsight structural representation.
Fig. 7 is embodiment of the invention high frequency radiation device perspective view.
Fig. 8 is the embodiment of the invention the first high frequency radiation module master TV structure schematic diagram.
Fig. 9 is the embodiment of the invention the first high frequency radiation module backsight structural representation.
Figure 10 is another main TV structure schematic diagram of the embodiment of the invention the first high frequency radiation module.
Figure 11 is that the embodiment of the invention is based on the array antenna perspective view of radiation appliance.
Figure 12 is that the embodiment of the invention is based on the array antenna master TV structure schematic diagram of radiation appliance.
Figure 13 does not increase the low frequency performance schematic diagram of open circuit minor matters in the existing array antenna in the high frequency radiation device.
Figure 14 is in the array antenna of the embodiment of the invention based on radiation appliance, increases the open circuit minor matters in the high frequency radiation device, the low frequency performance schematic diagram.
Figure 15 does not increase the high frequency performance schematic diagram of open circuit minor matters in the existing array antenna in the low frequency radiation device.
Figure 16 is in the array antenna of the embodiment of the invention based on radiation appliance, increases the open circuit minor matters in the low frequency radiation device, the high frequency performance schematic diagram.
Embodiment
Below with reference to accompanying drawing the technical scheme of various embodiments of the present invention is carried out clear, complete description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are resulting all other embodiment under the prerequisite of not making creative work, all belong to the scope that the present invention protects.
Existing coaxial double frequency or multifrequency antenna, owing to adopting common microstrip structure or half-wave radiation apparatus structure, when carrying out double frequency or multifrequency antenna array, because the distance between the low-and high-frequency radiation appliance of array antenna is less, so that occur stronger electromagnetic coupled between low frequency radiation device and the high frequency radiation device, the electromagnetic wave that severe jamming radiate forms alien frequencies and disturbs, so that the transmitting-receiving hydraulic performance decline of antenna.
In the embodiment of the invention, consideration increases the open circuit minor matters in the low frequency radiation device of antenna, so that the balance Ba Lun in the former low frequency radiation device can not only play balanced action to working band, can also carry out chokes to other frequency range, thereby reduce low-frequency range to the impact of high band, suppress the transmission of frequency electromagnetic waves in the low frequency radiation device, effectively reduce the frequency electromagnetic waves impact on the high-frequency electrical performance characteristic that secondary radiation produces in the low frequency radiation device, promote the isolation of antenna high band.Perhaps, in the high frequency radiation device of antenna, increase the open circuit minor matters, thereby reduce high band to the impact of low-frequency range, suppress the transmission of low-frequency electromagnetic wave in the high frequency radiation device, effectively reduce the low-frequency electromagnetic wave impact on the low frequency electrical performance characteristics that secondary radiation produces in the high frequency radiation device, promote the isolation of antenna low-frequency range.Certainly, in the practical application, also can in the low frequency radiation device of antenna and high frequency radiation device, increase respectively the open circuit minor matters, disturb mutually in order to the electromagnetism between effective reduction alien frequencies, improve the electrical performance indexes of radiation appliance and array antenna integral body.
About the detailed workflow of array antenna, specifically can referring to the correlation technique document, not repeat them here.
Fig. 1 is embodiment of the invention low frequency radiation device perspective view.Referring to Fig. 1, this low frequency radiation device comprises: the first low frequency radiation module 15 and the second low frequency radiation module 16, wherein,
The first low frequency radiation module 15 is carried out-45 ° of polarization, the second low frequency radiation module 16 is carried out+45 ° of polarization, the first low frequency radiation module 15 and the second low frequency radiation module 16 Orthogonal Symmetrics are fixed together, in axial centre one side of the first low frequency radiation module 15 and the second low frequency radiation module 16, be respectively arranged with and suppress the open circuit minor matters that frequency electromagnetic waves transmits in the low frequency radiation device.
In the embodiment of the invention, the first low frequency radiation module 15 and the second low frequency radiation module 16 both can be the dielectric printing oscillators, also can be the wire half-wave dipoles, can also be the metal oscillators, were applicable to single-frequency, double frequency or multifrequency array antenna.
Fig. 2 is the embodiment of the invention the first low frequency radiation module master TV structure schematic diagram;
Fig. 3 is the embodiment of the invention the first low frequency radiation module backsight structural representation.
Referring to Fig. 2 and Fig. 3, this first low frequency radiation module comprises: the first oscillator arms (radiation arm) 4, the second oscillator arms 5, metallic vias 7, coupling circuit 8, open circuit minor matters 9, draw-in groove button 12 and balance Ba Lun 13, wherein,
The direction that stands up when the first low frequency radiation module is installed is axial direction, and the direction that the first oscillator arms is extended is horizontal direction, and the direction of extending perpendicular to the first oscillator arms is vertical (main look, backsight) direction;
Axial direction at balance Ba Lun 13 centers is provided with for the draw-in groove button 12 that connects the second low frequency radiation module;
Opposite side in the balance Ba Lun 13 that coupling circuit 8 is arranged is provided with open circuit minor matters 9.
In the embodiment of the invention, for the position of described open circuit minor matters 9 in balance Ba Lun 13, be not specifically limited.
Preferably, open circuit minor matters 9 are
Shape.
In the embodiment of the invention, coupling circuit 8 also can be arranged on the first low frequency radiation module the same face, need not to link to each other by metallic vias 7, adopts the electromagnetic coupled mode that the first low frequency radiation module is carried out feed; Certainly, the end of coupling circuit 8 also can directly link to each other with radiant body, thereby the first low frequency radiation module is carried out direct feed.
In the practical application, this first low frequency radiation module can further include:
Preferably, the angle between supporter 10 and the balance Ba Lun 13 is about 45 °, for increasing balance and the mechanical strength of the first low frequency radiation device 1.
Fig. 4 is another main TV structure schematic diagram of the embodiment of the invention the first low frequency radiation module.From figure different 2 be, in the same side of the first low frequency radiation module, be provided with two open circuit minor matters, the minor matters of namely opening a way 9 and the second open circuit minor matters 9 ', open circuit minor matters 9 and the second open circuit minor matters 9 ' be
Shape, being parallel to axial direction arranges, so that a certain open circuit minor matters can suppress the electromagnetic wave of corresponding band, for example, open circuit minor matters 9 are mainly used in suppressing the transmission of frequency electromagnetic waves in the first low frequency radiation module, effectively reduce the frequency electromagnetic waves impact on the high-frequency electrical performance characteristic that secondary radiation produces in the first low frequency radiation module, the electromagnetism that namely effectively reduces between alien frequencies is disturbed mutually, thereby greatly improve the isolation between antennas of high band, make simultaneously it have superior pattern characteristics concurrently, improved the electrical performance indexes of array antenna integral body; And adopt arrange open circuit minor matters 9 and the second open circuit minor matters 9 ', can be so that inhibition be better, thus promote the transmitting-receiving performance of antenna.
Fig. 5 is the embodiment of the invention the second low frequency radiation module master TV structure schematic diagram;
Fig. 6 is the embodiment of the invention the second low frequency radiation module backsight structural representation.
Referring to Fig. 5 and Fig. 6, this second low frequency radiation module comprises: the first oscillator arms 4, the second oscillator arms 5, metallic vias 7, coupling circuit 8, open circuit minor matters 9, draw-in groove 11 and balance Ba Lun 13, wherein,
Axial direction at balance Ba Lun 13 centers is provided with for the draw-in groove 11 that connects the first low frequency radiation module;
Opposite side in the balance Ba Lun 13 that coupling circuit 8 is arranged is provided with open circuit minor matters 9.
In the embodiment of the invention, for the position of described open circuit minor matters 9 in balance Ba Lun 13, be not specifically limited.
Preferably, open circuit minor matters 9 are
Shape.
Preferably, the electrical length setting of open circuit minor matters 9 is about 0.25 high-frequency work wavelength, and certainly, in the practical application, the length of open circuit minor matters 9 also can according to the debugging situation of reality, be got the optimal value in its debugging.
In the embodiment of the invention, coupling circuit 8 also can be arranged on the second low frequency radiation module the same face, need not to link to each other by metallic vias 7, adopts the electromagnetic coupled mode that the second low frequency radiation module is carried out feed; Certainly, the end of coupling circuit 8 also can directly link to each other with radiant body, thereby the second low frequency radiation module is carried out direct feed.
In the practical application, this second low frequency radiation module can further include:
Preferably, the angle between supporter 10 and the balance Ba Lun 13 is about 45 °, for increasing balance and the mechanical strength of the second low frequency radiation device 1.
In the second low frequency radiation module, the first oscillator arms 4, the second oscillator arms 5, metallic vias 7, coupling circuit 8, open circuit minor matters 9 and balance Ba Lun 13, identical with corresponding components and parts in the first low frequency radiation module respectively, different is to be provided with the draw-in groove that links to each other for the first low frequency radiation module draw-in groove button in the second low frequency radiation module.
Fig. 7 is embodiment of the invention high frequency radiation device perspective view.Referring to Fig. 7, this high frequency radiation device comprises: the first high frequency radiation module 17 and the second high frequency radiation module 18, wherein, the first high frequency radiation module 17 is carried out-45 ° of polarization, the second high frequency radiation module 18 is carried out+45 ° of polarization, the first high frequency radiation module 17 and the second high frequency radiation module 18 Orthogonal Symmetrics are fixed together, in axial centre one side of the first high frequency radiation module 17 and the second high frequency radiation module 18, be respectively arranged with and suppress the open circuit minor matters that low-frequency electromagnetic wave transmits in the high frequency radiation device.
In the embodiment of the invention, the first high frequency radiation module 17 and the second high frequency radiation module 18 both can be the dielectric printing oscillators, also can be the wire half-wave dipoles, can also be the metal oscillators, were applicable to single-frequency, double frequency or multifrequency array antenna.
Preferably, the electrical length that is arranged on the open circuit minor matters in the high frequency radiation module is about 0.25 low frequency operation wavelength, and certainly, the length of open circuit minor matters also can according to the debugging situation of reality, be got the optimal value in its debugging.
Preferably, the open circuit minor matters are
Shape.
Fig. 8 is the embodiment of the invention the first high frequency radiation module master TV structure schematic diagram;
Fig. 9 is the embodiment of the invention the first high frequency radiation module backsight structural representation.
Referring to Fig. 8 and Fig. 9, this first high frequency radiation module comprises: the first oscillator arms 4, the second oscillator arms 5, metallic vias 6, coupling circuit 8, open circuit minor matters 16, draw-in groove button 12 and balance Ba Lun 13, wherein,
Axial direction at balance Ba Lun 13 centers is provided with for the draw-in groove button 12 that connects the second high frequency radiation module;
Both sides at balance Ba Lun 13 centers are respectively arranged with open circuit minor matters 16, and described open circuit minor matters 16 link to each other by the metallic vias 6 that is arranged on open circuit minor matters 16 ends.
Certainly, in the practical application, described open circuit minor matters 16 also can be in the same face of the first high frequency radiation module, need not metallic vias 6 and connect.
In the embodiment of the invention, the position of open circuit minor matters 16 in balance Ba Lun 13 for offering is not specifically limited.
The structure similar of the structure of the second high frequency radiation module and the first high frequency radiation module, different is to be provided with the draw-in groove that links to each other for the first high frequency radiation module draw-in groove button in the second high frequency radiation module.
Figure 10 is another main TV structure schematic diagram of the embodiment of the invention the first high frequency radiation module.Different from Fig. 8 is, both sides at balance Ba Lun 13 centers, each side is provided with two open circuit minor matters, the minor matters of namely opening a way 16 and the second open circuit minor matters 16 ', the open circuit minor matters 16 of each side and the second open circuit minor matters 16 ' sequentially link to each other, be used for suppressing low-frequency electromagnetic wave in the transmission of the first high frequency radiation module, effectively reduce the low-frequency electromagnetic wave impact on the low frequency electrical performance characteristics that secondary radiation produces in the first high frequency radiation module, thereby greatly improve the isolation between antennas of low-frequency range, make simultaneously it have superior pattern characteristics concurrently, improved the electrical performance indexes of array antenna integral body.
Figure 11 is that the embodiment of the invention is based on the array antenna perspective view of radiation appliance;
Figure 12 is that the embodiment of the invention is based on the array antenna master TV structure schematic diagram of radiation appliance.
Referring to Figure 11 and Figure 12, in conjunction with referring to Fig. 1 to Figure 10, this array antenna comprises: low frequency radiation device 1, high frequency radiation device 2 and reflecting plate 3, wherein,
Equidistantly arrange between the low frequency radiation device 1, high frequency radiation device 2 is symmetric arrays centered by each low frequency radiation device 1, and low frequency radiation device 1 and high frequency radiation device 2 in axial direction are installed on the reflecting plate 3;
Be provided with on the low frequency radiation device 1 for suppressing the open circuit minor matters 9 of frequency electromagnetic waves in 1 transmission of low frequency radiation device; And/or,
Be provided with on the high frequency radiation device 2 for suppressing the open circuit minor matters 16 of low-frequency electromagnetic wave in 2 transmission of high frequency radiation device.
In the embodiment of the invention, the quantity of the open circuit minor matters 9 of setting and open circuit minor matters 16 can be one, also can be for more than two.
Preferably, the open circuit minor matters are
Shape or
Shape.
Low frequency radiation device 1 comprises: the first low frequency radiation module 15 of-45 ° of polarization and+the second low frequency radiation module 16, the first low frequency radiation modules 15 and the second low frequency radiation module 16 Orthogonal Symmetrics of 45 ° of polarization are fixed together.
Wherein,
The first low frequency radiation module comprises: the first oscillator arms 4, the second oscillator arms 5, metallic vias 7, coupling circuit 8, open circuit minor matters 9, draw-in groove button 12 and balance Ba Lun 13, wherein,
Axial direction at balance Ba Lun 13 centers is provided with for the long and narrow draw-in groove button 12 that connects the second low frequency radiation module, like this, and can be so that low frequency radiation device 1 be made both practical, simple, convenient again.
Opposite side in the balance Ba Lun 13 that coupling circuit 8 is arranged is provided with open circuit minor matters 9.
As previously mentioned, coupling circuit 8 also can be arranged on the first low frequency radiation module the same face, need not to link to each other by metallic vias 7, adopts the electromagnetic coupled mode that the first low frequency radiation module is carried out feed; Certainly, the end of coupling circuit 8 also can directly link to each other with radiant body, thereby the first low frequency radiation module is carried out direct feed.
Preferably, the first oscillator arms 4, the second oscillator arms 5 and balance Ba Lun 13 are designed to one in physical structure, and positive and negative surface is provided with coupling circuit 8, and positive and negative coupling circuit 8 is connected by the metallic vias 7 that arranges on the first oscillator arms 4.
The second low frequency radiation module comprises: the first oscillator arms 4, the second oscillator arms 5, metallic vias 7, coupling circuit 8, open circuit minor matters 9, draw-in groove 11 and balance Ba Lun 13, wherein,
Axial direction at balance Ba Lun 13 centers is provided with for the draw-in groove 11 that connects the first low frequency radiation module;
Opposite side in the balance Ba Lun 13 that coupling circuit 8 is arranged is provided with open circuit minor matters 9.
In the embodiment of the invention, the length setting of open circuit minor matters 9 is about 0.25 high-frequency work wavelength.
In the practical application, the first low frequency radiation module and the second low frequency radiation module can further include:
Preferably, the angle between supporter 10 and the balance Ba Lun 13 is 45 °, for increasing balance and the mechanical strength of the first low frequency radiation device 1.
High frequency radiation device 2 comprises: the first high frequency radiation module 17 of-45 ° of polarization and+the second high frequency radiation module 18 of 45 ° of polarization, the first high frequency radiation module 17 and the second high frequency radiation module 18 Orthogonal Symmetrics are fixed together, in axial centre one side of the first high frequency radiation module 17 and the second high frequency radiation module 18, be respectively arranged with and suppress the open circuit minor matters that low-frequency electromagnetic wave transmits in the high frequency radiation device.
In the embodiment of the invention, the first high frequency radiation module 17 and the second high frequency radiation module 18 both can be the dielectric printing oscillators, also can be the wire half-wave dipoles, can also be the metal oscillators, were applicable to single-frequency, double frequency or multifrequency array antenna.
In the embodiment of the invention, the length that is arranged on the open circuit minor matters in the high frequency radiation module is about 0.25 low frequency operation wavelength.
The first high frequency radiation module comprises: the first oscillator arms 4, the second oscillator arms 5, metallic vias 6, coupling circuit 8, open circuit minor matters 16, draw-in groove button 12 and balance Ba Lun 13, wherein,
Axial direction at balance Ba Lun 13 centers is provided with for the draw-in groove button 12 that connects the second high frequency radiation module;
Both sides at balance Ba Lun 13 centers are respectively arranged with open circuit minor matters 16, and described open circuit minor matters 16 link to each other by the metallic vias 6 that is arranged on open circuit minor matters 16 ends.
The structure similar of the structure of the second high frequency radiation module and the first high frequency radiation module, different is to be provided with the draw-in groove that links to each other for the first high frequency radiation module draw-in groove button in the second high frequency radiation module.
In the embodiment of the invention, the balance Ba Lun 13 in low frequency radiation device 1 and the high frequency radiation device 2 is connected with feed seat (not shown), is fixed on the reflecting plate 3.
Preferably, form an integral body after balance Ba Lun 13 links to each other with the feed seat, be fixed on again on the reflecting plate 3.
In the embodiment of the invention, high frequency radiation device 2 is size with the main difference point of low frequency radiation device 1, and comparatively speaking, the high frequency radiation device is less than low frequency radiation plant bulk.
In the practical application, the aerial array of the specific embodiment of the invention comprises at least two low frequency radiation devices 1 and at least four high frequency radiation devices 2, low frequency radiation device 1 is linear coaxial setting with high frequency radiation device 2 at reflecting plate 3 longitudinal axis center lines, and the low-and high-frequency array lays respectively at same plane; Set up two high frequency radiation devices 2 between two low frequency radiation devices 1, wherein low frequency radiation device 1 is with equidistantly approximately 0.65～0.85 low frequency operation wavelength linear arrangement, and high frequency radiation device 2 is with equidistantly approximately 0.65～0.95 high-frequency work wavelength linear arrangement.
Certainly, in the practical application, high frequency radiation device 2 also can be linear array by unequal-interval, and preferably, described unequal-interval is about 0.75～1 high-frequency work wavelength.
Like this, when array antenna is operated in f1 and f2 frequency range, on the one hand, in the radiation appliance that this array antenna frequency range is f1, increase the open circuit minor matters, effectively reduce the f1 frequency range to the impact of f2 frequency range, the performance of array antenna is promoted greatly, certainly, in the practical application, can be to increase the open circuit minor matters in the radiation appliance of f2 in frequency range also, effectively reduce the f2 frequency range to the impact of f1 frequency range; On the other hand, the Radiation Module of this array antenna is simple in structure, lightweight, therefore, adopt double frequency or the multifrequency array antenna of the Radiation Module realization of the embodiment of the invention, have compact conformation, cost is low and can be mass-produced, the characteristics such as good product consistency, especially be fit to the multifrequency antenna of broad beam.Specifically,
The working frequency range of array antenna is f1 and f2, and wherein, f1 is low-frequency range, and f2 is high band, and in the embodiment of the invention, low-frequency range and high band are for the working frequency range of array antenna.
When array antenna was operated in the f2 frequency range, frequency range was to be provided with the open circuit minor matters on the balance Ba Lun of radiation appliance of f1, and it is operation wavelength corresponding to f2 that the electrical length of open circuit minor matters is about 0.25 frequency range.Certainly, in the practical application, can get according to the debugging situation optimal value of its electrical length;
Further, the open circuit minor matters number that radiation appliance arranges can also be for more than two, so that a certain open circuit minor matters suppress the electromagnetic wave of corresponding band, it is that the electromagnetic wave of f2 is transmission in the radiation appliance of f1 at working frequency range that the open circuit minor matters are mainly used in suppressing frequency range, effectively reduce the electromagnetic wave of f2 frequency range in the radiation appliance of f1 frequency range, because secondary radiation is on the impact of f2 frequency range electrical performance characteristics, thereby greatly improve the isolation between antennas of f2 frequency range, have simultaneously superior pattern characteristics concurrently.
To be operated in the f2 frequency range similar with array antenna, when array antenna is operated in the f1 frequency range, can be that the balance Ba Lun of the radiation appliance of f2 arranges the open circuit minor matters in frequency range also, and wherein, it is operation wavelength corresponding to f1 that the electrical length of open circuit minor matters is about 0.25 frequency range.In the practical application, also can get according to the debugging situation optimal value of its electrical length, the open circuit minor matters can extend to the radiation appliance back side by metallic vias, also can be in the radiation appliance same plane, need not via hole and connect.Wherein, it is that the electromagnetic wave of f1 is transmission in the radiation appliance of f2 at working frequency range that the open circuit minor matters are mainly used in suppressing frequency range, effectively the reduction frequency range is that the electromagnetic wave of f1 is in the radiation appliance of f2 at working frequency range, because secondary radiation is on the impact of f1 frequency range electrical performance characteristics, thereby the isolation between antennas of Effective Raise f1 frequency range makes it have superior pattern characteristics.
Figure 13 does not increase the low frequency performance schematic diagram of open circuit minor matters in the existing array antenna in the high frequency radiation device;
Figure 14 is in the array antenna of the embodiment of the invention based on radiation appliance, increases the open circuit minor matters in the high frequency radiation device, the low frequency performance schematic diagram.
Referring to Figure 13 and 14, under identical condition of work, when 900MHz, the isolation of existing array antenna is-19.5 decibels (dB), and adopts the embodiment of the invention, and the isolation of array antenna is-23.8 decibels; When 930MHz, the isolation of existing array antenna is-22.9 decibels, and adopts the embodiment of the invention, and the isolation of array antenna is-24.8 decibels.As seen, after the employing embodiment of the invention, the efficiency of isolation of array antenna strengthens greatly.
Figure 15 does not increase the high frequency performance schematic diagram of open circuit minor matters in the existing array antenna in the low frequency radiation device;
Figure 16 is in the array antenna of the embodiment of the invention based on radiation appliance, increases the open circuit minor matters in the low frequency radiation device, the high frequency performance schematic diagram.
Referring to Figure 15 and 16, under identical condition of work, when 1.400GHz, the isolation of existing array antenna is-12.7 decibels, and adopts the embodiment of the invention, and the isolation of array antenna is-22.1 decibels; When 1.440GHz, the isolation of existing array antenna is-10.75 decibels, and adopts the embodiment of the invention, and the isolation of array antenna is-25.2 decibels; When 1.500GHz, the isolation of existing array antenna is-11.74 decibels, and adopts the embodiment of the invention, and the isolation of array antenna is-23.4 decibels.As seen, after the employing embodiment of the invention, the efficiency of isolation of array antenna has also strengthened greatly.
In sum, the compact that the embodiment of the invention provides, high performance radiation appliance and the array antenna that is formed by radiation appliance, by in the low frequency radiation module, increasing the open circuit minor matters, thereby suppress the transmission of frequency electromagnetic waves in the low frequency radiation module, effectively reduce the frequency electromagnetic waves impact on the high-frequency electrical performance characteristic that secondary radiation produces in the low frequency radiation module, improve isolation between antennas; Simultaneously, make array antenna have superior pattern characteristics concurrently; Further, single-frequency, double frequency or the multifrequency array antenna that adopts the low frequency radiation module to realize all has compact conformation, cost is low and can be mass-produced, the characteristics such as good product consistency, especially be fit to the multifrequency antenna of broad beam, application prospect is boundless.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also comprises these changes and modification interior.
Claims (23)
1. a low frequency radiation device is characterized in that, this device comprises: the first low frequency radiation module and the second low frequency radiation module, wherein,
The first low frequency radiation module is carried out-45 ° of polarization, the second low frequency radiation module is carried out+45 ° of polarization, the first low frequency radiation module and the second low frequency radiation module Orthogonal Symmetric are fixed together, in axial centre one side of the first low frequency radiation module and the second low frequency radiation module, be respectively arranged with and suppress the open circuit minor matters that frequency electromagnetic waves transmits in the low frequency radiation device.
2. device according to claim 1 is characterized in that, described the first low frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove button and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the first low frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at the side of balance Ba Lunnei, and an end links to each other with feeder cable, and the other end extends in the first oscillator arms, is connected to the coupling circuit at the first low frequency radiation module back side by being arranged on metallic vias in the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove button that connects the second low frequency radiation module;
At the opposite side of the balance Ba Lunnei that coupling circuit is arranged, be provided with the open circuit minor matters.
3. device according to claim 2 is characterized in that, described open circuit minor matters are
Shape.
4. device according to claim 3 is characterized in that, described the first low frequency radiation module further comprises:
Supporter, symmetry are installed on balance Ba Lun both sides, and an end and the second oscillator arms are connected, and the other end and balance Ba Lun are connected.
5. device according to claim 4 is characterized in that, the angle between described supporter and the balance Ba Lun is 45 °.
6. according to claim 2 to 5 each described devices, it is characterized in that,
Obverse and reverse both sides in the first low frequency radiation module arrange respectively the open circuit minor matters, and described open circuit minor matters are parallel to axial direction and arrange.
7. according to claim 2 to 5 each described devices, it is characterized in that,
In the same side of the first low frequency radiation module, two open circuit minor matters are set, described two open circuit minor matters are
Shape is parallel to axial direction and arranges.
8. device according to claim 7 is characterized in that, described the first low frequency radiation module and the second low frequency radiation module are dielectric printing oscillator, wire half-wave dipole or metal oscillator.
9. device according to claim 1 is characterized in that, described the second low frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the second low frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at the side of balance Ba Lunnei, and an end links to each other with feeder cable, and the other end extends in the first oscillator arms, is connected to the coupling circuit at the first low frequency radiation module back side by being arranged on metallic vias in the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove that connects the first low frequency radiation module;
At the opposite side of the balance Ba Lunnei that coupling circuit is arranged, be provided with the open circuit minor matters.
10. device according to claim 1 is characterized in that, the electrical length of described open circuit minor matters is set to 0.25 high-frequency work wavelength.
11. a high frequency radiation device is characterized in that, this device comprises: the first high frequency radiation module and the second high frequency radiation module, wherein,
The first high frequency radiation module is carried out-45 ° of polarization, the second high frequency radiation module is carried out+45 ° of polarization, the first high frequency radiation module and the second high frequency radiation module Orthogonal Symmetric are fixed together, in axial centre one side of the first high frequency radiation module and the second high frequency radiation module, be respectively arranged with and suppress the open circuit minor matters that low-frequency electromagnetic wave transmits in the high frequency radiation device.
12. device according to claim 11 is characterized in that, described the first high frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove button and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the first high frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at balance Ba Lunnei, and an end links to each other with feeder cable in a side at balance Ba Lun center, and the other end extends to the opposite side at balance Ba Lun center by the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove button that connects the second high frequency radiation module;
Both sides at balance Ba Lun center are respectively arranged with the open circuit minor matters, and described open circuit minor matters link to each other by the metallic vias that is arranged on open circuit minor matters end.
13. device according to claim 11 is characterized in that,
Both sides at balance Ba Lun center, each side are provided with two open circuit minor matters, and two open circuit minor matters that each side arranges sequentially link to each other.
14. to 13 each described devices, it is characterized in that according to claim 11, the electrical length of described open circuit minor matters is 0.25 low frequency operation wavelength.
15. the array antenna based on the high frequency radiation device is characterized in that, this array antenna comprises: low frequency radiation device, high frequency radiation device and reflecting plate, wherein,
Equidistantly arrange between the low frequency radiation device, the high frequency radiation device is symmetric arrays centered by each low frequency radiation device, and low frequency radiation device and high frequency radiation device in axial direction are installed on the reflecting plate;
Be provided with the open circuit minor matters of transmitting at the low frequency radiation device for suppressing frequency electromagnetic waves on the low frequency radiation device; And/or,
Be provided with the open circuit minor matters of transmitting at the high frequency radiation device for suppressing low-frequency electromagnetic wave on the high frequency radiation device.
16. array antenna according to claim 15 is characterized in that, between the described low frequency radiation device equidistantly is 0.65～0.85 low frequency operation wavelength, and between the described high frequency radiation device equidistantly is 0.65～0.95 high-frequency work wavelength.
17. array antenna according to claim 15 is characterized in that,
The electrical length of the described open circuit minor matters that arrange in the described low frequency radiation device is set to 0.25 high-frequency work wavelength;
The electrical length of the described open circuit minor matters that arrange in the described high frequency radiation device is 0.25 low frequency operation wavelength.
18. to 17 each described array antennas, it is characterized in that according to claim 15, described low frequency radiation device comprises: the first low frequency radiation module and the second low frequency radiation module, wherein,
The first low frequency radiation module is carried out-45 ° of polarization, the second low frequency radiation module is carried out+45 ° of polarization, the first low frequency radiation module and the second low frequency radiation module Orthogonal Symmetric are fixed together, in axial centre one side of the first low frequency radiation module and the second low frequency radiation module, be respectively arranged with and suppress the open circuit minor matters that frequency electromagnetic waves transmits in the low frequency radiation device.
19. array antenna according to claim 18 is characterized in that, described the first low frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove button and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the first low frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at the side of balance Ba Lunnei, and an end links to each other with feeder cable, and the other end extends in the first oscillator arms, is connected to the coupling circuit at the first low frequency radiation module back side by being arranged on metallic vias in the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove button that connects the second low frequency radiation module;
At the opposite side of the balance Ba Lunnei that coupling circuit is arranged, be provided with the open circuit minor matters.
20. array antenna according to claim 19 is characterized in that, described the first low frequency radiation module further comprises:
Supporter, symmetry are installed on balance Ba Lun both sides, and an end and the second oscillator arms are connected, and the other end and balance Ba Lun are connected.
21. array antenna according to claim 18 is characterized in that, described the second low frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the second low frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at the side of balance Ba Lunnei, and an end links to each other with feeder cable, and the other end extends in the first oscillator arms, is connected to the coupling circuit at the first low frequency radiation module back side by being arranged on metallic vias in the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove that connects the first low frequency radiation module;
At the opposite side of the balance Ba Lunnei that coupling circuit is arranged, be provided with the open circuit minor matters.
22. to 17 each described array antennas, it is characterized in that according to claim 15, described high frequency radiation device comprises: the first high frequency radiation module and the second high frequency radiation module, wherein,
The first high frequency radiation module is carried out-45 ° of polarization, the second high frequency radiation module is carried out+45 ° of polarization, the first high frequency radiation module and the second high frequency radiation module Orthogonal Symmetric are fixed together, in axial centre one side of the first high frequency radiation module and the second high frequency radiation module, be respectively arranged with and suppress the open circuit minor matters that low-frequency electromagnetic wave transmits in the high frequency radiation device.
23. array antenna according to claim 22 is characterized in that, described the first high frequency radiation module comprises: the first oscillator arms, the second oscillator arms, metallic vias, coupling circuit, open circuit minor matters, draw-in groove button and balance Ba Lun, wherein,
Balance Ba Lun in axial direction supports the first high frequency radiation module, the first oscillator arms and the second oscillator arms are connected, symmetry is positioned at balance Ba Lun top, wherein, the first oscillator arms is parallel to horizontal direction, the second oscillator arms downward bending makes to be 0 °～90 ° angle between the first oscillator arms and the second oscillator arms;
Coupling circuit is arranged at balance Ba Lunnei, and an end links to each other with feeder cable in a side at balance Ba Lun center, and the other end extends to the opposite side at balance Ba Lun center by the first oscillator arms;
Axial direction at balance Ba Lun center is provided with for the draw-in groove button that connects the second high frequency radiation module;
Both sides at balance Ba Lun center are respectively arranged with the open circuit minor matters, and described open circuit minor matters link to each other by the metallic vias that is arranged on open circuit minor matters end.
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