WO2023087244A1

WO2023087244A1 - Dual-frequency feed source, antenna device, and wireless communication device

Info

Publication number: WO2023087244A1
Application number: PCT/CN2021/131724
Authority: WO
Inventors: 王彦勋; 陈泽峰; 陈勇
Original assignee: 上海华为技术有限公司
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2023-05-25
Also published as: CN118160157A

Abstract

The present application discloses a dual-frequency feed source, an antenna device, and a wireless communication device. The dual-frequency feed source is used to increase the anti-shaking capability of a dual-frequency antenna. The dual-frequency feed source comprises a service waveguide and a plurality of amplitude waveguides located at the exterior of the service waveguide. The service waveguide comprises an outer waveguide and an inner waveguide nested inside of the outer waveguide. The inner waveguide and the outer waveguide are coaxial. The plurality of amplitude waveguides comprise a first amplitude waveguide and a second amplitude waveguide which are symmetrically arranged around the axis of the outer waveguide. A first end of the inner waveguide, a first end of the outer waveguide, and a first end of each amplitude waveguide are used for receiving a first signal, a second signal and a third signal in a beam, respectively. A second end of each amplitude waveguide is connected to a self-tracking module. The self-tracking module is used to adjust the maximum gain direction of an antenna, which is conducive to improving the receiving performance of an antenna device and improving the anti-shaking performance of the antenna device. When a received beam carries communication information, this is beneficial to guarantee the performance of an uplink.

Description

A dual-frequency feed source, antenna equipment and wireless communication equipment

technical field

The present application relates to the technical field of communication, and in particular to a dual-frequency feed source, an antenna device and a wireless communication device.

Background technique

As a technical means to effectively improve network transmission capacity, dual-frequency antennas transmit high-frequency signals and low-frequency signals on the same link, combining high-frequency high-capacity and low-frequency long-distance. Quality of service (quality of service, QoS) business protection mechanism. Among them, high-frequency signals, such as E-band signals with wide channel bandwidth, have the characteristics of large space loss, large rain attenuation, and narrow beams, which lead to poor anti-shaking performance, limited transmission distance and stability, thus limiting dual-band antennas. work performance.

The dual-frequency feed is the core component of the dual-frequency antenna, and the structure of the dual-frequency feed largely determines the performance of the dual-frequency antenna. The existing dual-frequency antenna adopts a dual-frequency coaxial feed to realize dual-band operation. The outer conductor is a coaxial horn operating in the low frequency band, and the inner conductor is a dielectric rod operating in the high frequency band. Although the integration of dual-band coaxial feeds can be achieved, the beamwidth of the dual-band antenna in the high-frequency band is narrow, and the anti-shaking ability is poor. The maximum gain angle of the dual-band antenna deviates from the incoming wave direction, which may easily lead to deterioration or even interruption of high-frequency link performance.

Contents of the invention

An embodiment of the present application provides a dual-frequency feed, an antenna device, and a wireless communication device, which are used to improve the anti-shaking capability of the dual-frequency antenna.

A first aspect of the embodiments of the present application provides a dual-frequency feed, which can be applied to an antenna device, where the antenna device is used to receive beams. The dual-frequency feed includes a service waveguide and multiple amplitude-ratio waveguides outside the service waveguide. The service waveguide includes an outer waveguide and an inner waveguide nested inside the outer waveguide, the inner waveguide is coaxial with the outer waveguide, and the plurality of proportional amplitude waveguides include a first proportional amplitude waveguide and a first proportional amplitude waveguide arranged symmetrically about the axis of the outer waveguide. The second proportional amplitude waveguide. The first end of the inner waveguide, the first end of the outer waveguide, and the first ends of the plurality of ratio-amplitude waveguides are respectively used to receive the first signal, the second signal, and the third signal in the beam, The second ends of the plurality of proportional amplitude waveguides are used to connect to a self-tracking module, and the self-tracking module is used to adjust the maximum gain direction of the antenna.

Since the outer waveguide and the inner waveguide are coaxial, the direction of maximum gain corresponding to the first signal is consistent with the direction of maximum gain corresponding to the second signal, and since the main beam in the beam pattern diagram is usually symmetrical about the beam direction, the first ratio waveguide and the second waveguide The two proportional amplitude waveguides are arranged symmetrically with respect to the axis of the outer waveguide. When the antenna device is aligned with the maximum gain direction, the gains of the signals received by the first proportional amplitude waveguide and the second proportional amplitude waveguide are the same. Taking the dual reflector antenna as an example, when the beam is deflected to the first proportional waveguide, the gain of the first sub-signal received by the first proportional waveguide is smaller than the gain of the second sub-signal received by the second proportional waveguide, when the beam When it is biased towards the second ratio-amplitude waveguide, the gain of the second sub-signal is smaller than the gain of the first sub-signal, so the first sub-signal and the second sub-signal can be used to determine the current maximum gain direction of the antenna device and the first signal and the second signal corresponding to the difference between the directions of maximum gain. In this way, the self-tracking module can adjust the maximum gain direction of the antenna device according to the first sub-signal and the second sub-signal, so as to increase the gain of the first signal and the second signal, which is beneficial to improve the antenna device The receiving performance is improved, and the anti-shaking performance of the antenna equipment is improved. Uplink performance is guaranteed when beams carry communication information.

And, use the service waveguide to receive the signal in the beam to provide the service signal, and use a plurality of amplitude ratio waveguides other than the service waveguide to receive the signal in the beam to provide the tracking signal, without the second end of the inner waveguide or the second end of the outer waveguide. The two ends are connected to the feed network used to extract the sum mode signal and the differential mode signal from the corresponding received signal, which is beneficial to reduce the complexity of the process, thereby reducing the difficulty and cost of processing.

Optionally, the dual-frequency feed further includes a columnar structure, the outer waveguide, the inner waveguide, and the plurality of ratio-amplitude waveguides respectively pass through both ends of the columnar structure, and the first of the outer waveguide One end, the first end of the inner waveguide and the first end of each proportional amplitude waveguide are facing the first end of the columnar structure. By running through the processing service waveguide and multiple ratio-amplitude waveguides at both ends of the columnar structure, it is beneficial to reduce the difficulty of the process and ensure a relatively stable relative positional relationship between the waveguides.

Optionally, the plurality of proportional amplitude waveguides are arranged outside the outer waveguide, which is beneficial to reduce the impact of the proportional amplitude waveguides on the performance of the service waveguide for transmitting and receiving signals.

Optionally, the first end of the columnar structure is provided with a surrounding structure symmetrical to the axis, and the surrounding structure connects the first end of the outer waveguide, the first end of the inner waveguide and the The first ends of the plurality of ratio-amplitude waveguides surround the inside of the perimeter, so that the equivalent beam size of the signal received by the outer waveguide is equivalent to the aperture of the perimeter structure, because the aperture of the perimeter structure is larger than the aperture of the outer waveguide , so it is beneficial to increase the equivalent beam size of the external waveguide transceiver signal, increase the gain of the low-frequency feed source, and improve the overall performance of the low-frequency antenna. Furthermore, it is beneficial to reduce the aperture of the outer waveguide, reduce the distance between the first proportional waveguide and the second proportional waveguide, so that it can receive the main lobe signal in the beam, ensure the correct tracking logic, and improve the self-tracking accuracy.

Optionally, the surrounding structure is hollow cylindrical or horn-shaped.

Optionally, the first end of the columnar structure is further provided with an annular groove symmetrical to the axis, and the annular groove is located between the surrounding structure and the outer waveguide. The annular groove is conducive to improving the equalization of the low-frequency beam, that is, making the beam width of the elevation plane and the beam width of the azimuth plane close to each other.

Optionally, the dual-frequency feed further includes a switch network, the second ends of the plurality of proportional-amplitude waveguides are connected to the self-tracking module through the switch network, and the switch network is used to connect the plurality of proportional-amplitude waveguides to the self-tracking module. The signals transmitted in the amplitude waveguide are input to the self-tracking module one by one. In this way, it is beneficial to reduce the number of input ports required by the self-tracking module, reduce the number of radio frequency units such as low noise amplifiers (LNA for short) set corresponding to the input ports, and reduce the circuit complexity of the self-tracking module.

Optionally, the distance between the first ends of the plurality of proportional amplitude waveguides and the axis is smaller than the distance between the second ends of the plurality of proportional amplitude waveguides and the axis, which is beneficial to reduce the distance between the plurality of proportional amplitude waveguides. The lateral defocusing distance enables it to receive the main lobe signal in the beam, to ensure the correct tracking logic and improve the self-tracking accuracy.

Optionally, the plurality of proportional amplitude waveguides also includes a third proportional amplitude waveguide and a fourth proportional amplitude waveguide arranged symmetrically with respect to the axis of the outer waveguide, so that the plurality of proportional amplitude waveguides is conducive to providing pitching to the self-tracking module Angular deflection information and azimuth deflection information to achieve two-dimensional alignment. Optionally, the line connecting the third proportional waveguide and the fourth proportional waveguide is perpendicular to the line connecting the first proportional waveguide and the second proportional waveguide.

Optionally, the dual-frequency feed further includes a first orthogonal mode polarization separator OMT, and the outer waveguide is used to connect the first radio frequency circuit through the first OMT, which is beneficial to realize dual polarization.

Optionally, the dual-frequency feed source further includes a second orthogonal mode polarization separator OMT, and the inner waveguide is used to connect the second radio frequency circuit through the second OMT, which is beneficial to realize high-frequency signal bipolar.

Optionally, a matching medium is provided between the outer waveguide and the inner waveguide, and the matching medium is used to reduce the standing wave ratio of the low-frequency voltage.

In a second aspect, an embodiment of the present application provides an antenna device, where the antenna device may include a reflective surface and a dual-frequency feed as described in any possible implementation manner of the first aspect.

In a third aspect, an embodiment of the present application provides a wireless communication device, where the wireless communication device may include an antenna device, and the antenna device may include a dual-frequency feed as described in any possible implementation manner of the first aspect.

Description of drawings

Fig. 1 schematically shows a possible structure of an antenna system;

FIG. 2 schematically shows a possible structure of a wireless communication device according to an embodiment of the present application;

Figure 3-1 and Figure 3-2 respectively illustrate a possible structure of the dual-frequency feed source in the embodiment of the present application;

Fig. 4 exemplarily shows a possible structure of the surrounding structure 4-1 and the annular groove 4-2 in the dual-frequency feed source of the embodiment of the present application;

Fig. 5 exemplarily shows a possible structure of the conversion head 5 in the dual-frequency feed source of the embodiment of the present application;

FIG. 6 exemplarily shows another possible structure of a dual-frequency feed in the embodiment of the present application;

Figure 7-1 and Figure 7-2 exemplarily show a possible structure of the switch network 7 in the dual-frequency feed source of the embodiment of the present application;

FIG. 8 schematically shows a possible structure of the first transmission arm 8-1 and the second transmission arm 8-2 in the dual-frequency feed source of the embodiment of the present application;

Figure 9-1 exemplarily shows a possible structure of the first OMT in the dual-frequency feed according to the embodiment of the present application;

Figure 9-2 exemplarily shows a possible structure of the second OMT in the dual-frequency feed source of the embodiment of the present application;

Figure 10-1 and Figure 10-2 respectively illustrate a possible structure of the matching medium 101 in the dual-frequency feed source of the embodiment of the present application;

FIG. 11 to FIG. 14 respectively schematically show the beam pattern of the antenna device according to the embodiment of the present application.

Detailed ways

Embodiments of the present application provide a feed source and a device including the feed source. Firstly, the system applicable to the embodiment of the present application is introduced with reference to the accompanying drawings.

The embodiment of the present application may be applied to the wireless communication system shown in FIG. 1 . Referring to FIG. 1 , the wireless communication system may include an antenna device and a peer antenna device, and the antenna device and the peer antenna device are respectively arranged on poles. The peer antenna device can transmit a beam carrying information (denoted as beam 0) under the control of a connected backend system (not shown in FIG. 1 ). In this embodiment of the present application, the information carried by the beam is called service information. The antenna device may receive the beam 0, and then send the received signal to a connected backend system for processing, for example, to demodulate the service information carried by the beam. For beam 0, in this embodiment of the present application, the antenna device used to receive the beam is called the antenna device, and the antenna device that transmits the beam is called the opposite antenna device. Optionally, the antenna device shown in FIG. 1 may also be used to transmit beams.

Optionally, the antenna device shown in FIG. 1 may be a dual-band antenna. The dual-frequency antenna combines the high capacity of the high frequency band with the long distance of the low frequency band by transmitting high frequency signals and low frequency signals on the same link, and provides high capacity while enhancing the quality of service (QoS) business protection mechanism. Optionally, the antenna device shown in Figure 1 can be a dual-band microwave antenna, which receives high-frequency signals in the beam, such as E-band signals with wide channel bandwidth, which have large space loss, large rain attenuation, and narrow beams. characteristics, resulting in poor anti-shaking performance, limited transmission distance and stability, thus limiting the performance of the dual-band antenna. Continuing to refer to Figure 1, the pole may be deflected due to factors such as wind blowing and sunlight, so that the maximum gain direction of the antenna device may not be aligned with the beam emitted by the opposite antenna device, resulting in deterioration of link performance or even communication interruption.

The embodiment of the present application may be applied to the wireless communication device shown in FIG. 2 . Referring to FIG. 2, a wireless communication device may include an antenna device, a signal processing circuit, and a self-tracking module. Wherein, the antenna device may include a main reflector, a secondary reflector and a dual-frequency feed. Optionally, the antenna device shown in FIG. 2 may correspond to the antenna device shown in FIG. 1 , and the signal processing circuit and the self-tracking module may correspond to the backend system mentioned in the embodiment corresponding to FIG. 1 . Optionally, the signal processing circuit may include a remote radio frequency unit (remote RF unit, RRU) or a module in the RRU, and the self-tracking module may include a control system of the antenna device.

The wireless communication device may be used to receive a beam (for example, an uplink beam), and the beam is, for example, beam 0 shown in FIG. 1 . The main reflector and the sub-reflector can be used to reflect the received beam to a dual-frequency feed, and the dual-frequency feed is used to receive signals in the first frequency band and the second frequency band in the beam, wherein the first frequency band is higher than the second frequency band . After that, the dual-frequency feed source inputs signals to the signal processing circuit on the one hand, so that the signal processing circuit demodulates to obtain the service information carried by the signals of the first frequency band and the signal of the second frequency band, and on the other hand, inputs signals to the self-tracking module to obtain Make the self-tracking module control the maximum gain angle of the antenna device to align with the uplink beam direction. For ease of description, in this embodiment of the present application, the signal input from the dual-frequency feed to the signal processing circuit is called a service signal, and the signal input from the dual-frequency feed to the self-tracking module is called a tracking signal.

Referring to FIG. 2, optionally, the signal processing circuit may include a first signal processing module and a second signal processing module, which are respectively used to process service signals of corresponding frequency bands, for example, down-convert and amplify service signals of corresponding frequency bands and demodulation processing. The self-tracking module is used to receive the tracking signal, adjust the maximum gain angle of the antenna device (or adjust the electrical axis of the antenna) according to the tracking signal, so that the maximum gain angle of the antenna device is aligned with the beam.

FIG. 2 is an example of a feed-back antenna device. Optionally, the antenna device may also be a feed-forward antenna device. Optionally, the antenna device provided in this embodiment of the present application may not include a secondary reflector. Optionally, the antenna device can be used not only for receiving beams, but also for transmitting beams.

The feed device (referred to as the feed) is the core component of the antenna device, and the structure of the feed determines the performance of the antenna device to a large extent. The embodiment of the present application provides a dual-frequency feed source, which not only improves the capacity of the antenna, but also provides indication information for dynamically adjusting the beam pointing and counteracting the deflection of the pole, which is beneficial to solve the beam alignment problem of the large-aperture microwave antenna. Optionally, the feed provided in this embodiment of the present application may be applied to an antenna device in a wireless communication device, and the antenna device may be used to receive beams. Optionally, the antenna device may be, for example, the antenna device shown in FIG. 1 or FIG. 2 , and the beam may be, for example, beam 0 shown in FIG. 1 . Or, optionally, the feed provided by the embodiments of the present application may be applied to antenna devices in other wireless devices, for example, to antenna devices in radar or satellite systems.

A possible structure of a dual-frequency feed source according to an embodiment of the present application will be described below with reference to the accompanying drawings.

Referring to FIG. 3-1 , the dual-frequency feed provided by the embodiment of the present application may include a service waveguide 1 and multiple amplitude ratio waveguides 2 . Wherein, the service waveguide 1 includes an inner waveguide 11 and an outer waveguide 12 , the inner waveguide 11 is nested inside the outer waveguide 12 , and the inner waveguide 11 and the outer waveguide 12 are coaxial. The plurality of proportional amplitude waveguides 2 includes a first proportional amplitude waveguide 21 and a second proportional amplitude waveguide 22 , and the first proportional amplitude waveguide 21 and the second proportional amplitude waveguide 22 are arranged symmetrically with respect to the axis 20 of the outer waveguide 12 .

The inner waveguide 11 may include two ports (or ends for short). For the convenience of description, the embodiment of the present application refers to the port of the inner waveguide 11 visible in FIG. 3-1 as the first end of the inner waveguide 11, which will be described in FIG. The port not visible in 1 is called the second end of the inner waveguide 11. The outer waveguide 12 may include two ports, which are similar to the inner waveguide 11. For the convenience of description, the embodiment of the present application refers to the port of the outer waveguide 12 visible in FIG. 3-1 as the first end of the outer waveguide 12, which will be described in The port not visible in 3-1 is called the second end of the outer waveguide 12 . Each of the first proportional waveguide 21 and the second proportional waveguide 22 may include two ports. For the convenience of description, in the embodiment of the present application, each of the first proportional waveguide 21 and the second proportional waveguide 22 The port of the waveguide visible in Fig. 3-1 is referred to as the first end of the respective waveguide, and the port not visible in Fig. 3-1 is referred to as the second end of the respective waveguide.

Optionally, the first end of the inner waveguide 11, the first end of the outer waveguide 12, the first end of the first proportional waveguide 21 and the first end of the second proportional waveguide 22 are respectively used to receive the first signal, the second signal, the first sub-signal and the second sub-signal, the second end of the first ratio-amplitude waveguide 21 and the second end of the second ratio-amplitude waveguide 22 are respectively used for connecting the self-tracking module, and the self-tracking module is used for Adjust the maximum gain direction of the antenna device according to the first sub-signal and the second sub-signal, so as to increase the gain of the first signal and/or the second signal.

Optionally, the second end of the inner waveguide 11 and the second end of the outer waveguide 12 may be used to connect to the signal processing circuit shown in FIG. 2 . For example, the second end of the inner waveguide 11 is used to connect to the first signal processing module shown in FIG. 2 , and the second end of the outer waveguide 12 is used to connect to the second signal processing module shown in FIG. 2 . Since the diameter of the outer waveguide 22 is larger than the diameter of the inner waveguide 21, the frequency band corresponding to the second signal (referred to as the second frequency band) is lower than the frequency band corresponding to the first signal (first frequency band). Optionally, the first frequency band may be an E-band microwave frequency band, and the second frequency band may be a conventional frequency band (for example, 6-42 GHz).

Since the outer waveguide and the inner waveguide are coaxial, the direction of maximum gain corresponding to the first signal is consistent with the direction of maximum gain corresponding to the second signal, and since the main beam in the beam pattern diagram is usually about the beam direction (the direction of maximum gain corresponding to the maximum gain) Symmetrical, the first proportional amplitude waveguide and the second proportional amplitude waveguide are arranged symmetrically with respect to the axis of the outer waveguide, and when the antenna device is aligned with the maximum gain direction, the gains of the signals received by the first proportional amplitude waveguide and the second proportional amplitude waveguide are the same. Taking the dual-reflector antenna as an example, when the beam is deflected to the first proportional waveguide, the gain of the first sub-signal is smaller than the gain of the second sub-signal; when the beam is deflected to the second proportional waveguide, the gain of the second sub-signal is smaller than that of the second The gain of a sub-signal, therefore, the first sub-signal and the second sub-signal can be used to determine the difference between the current maximum gain direction of the antenna device and the corresponding maximum gain directions of the first signal and the second signal. In this way, the self-tracking module can compare the amplitude or power of the signal input by the first ratio waveguide 21 and the signal input by the second ratio waveguide 22, and then adjust the maximum gain direction of the antenna device to increase the first signal and the second ratio waveguide. The gain of the second signal is conducive to improving the receiving performance of the antenna device and improving the anti-shaking performance of the antenna device. Uplink performance is guaranteed when beams carry communication information.

And, use the service waveguide 1 to receive the signal in the beam to provide the service signal, and use a plurality of ratio-amplitude waveguides 2 other than the service waveguide 1 to receive the signal in the beam to provide the tracking signal, so there is no need for the second end of the inner waveguide 11 Or the second end of the outer waveguide 12 is connected to the feeding network for extracting the sum mode signal and the differential mode signal from the corresponding received signal, which is beneficial to reduce process complexity, thereby reducing processing difficulty and cost.

Optionally, the multiple proportional amplitude waveguides 2 in the dual frequency feed of the present application may include more proportional amplitude feed tubes other than the first proportional amplitude feed tube 21 and the second proportional amplitude feed tube. Similar to the first proportional feed tube 21, each of the more proportional feed tubes may include two ports, and in the embodiment of the present application, more proportional feed tubes are used to receive signals in the beam The port of is called the first end of the corresponding waveguide, and the port for connecting the self-tracking module is called the second end of the corresponding waveguide. In the embodiment of the present application, the second end of the first proportional feed tube 21, the second end of the second proportional feed tube 22, and the second end of each proportional feed tube in the more proportional feed tubes are self-tracking The signal input by the module is called the third signal, and the self-tracking module can adjust the maximum gain direction of the antenna device according to the third signal, so as to increase the gain of the first signal and/or the second signal. In this case, the third signal includes the first sub-signal and the second sub-signal.

Fig. 3-2 exemplarily shows another possible structure of the dual-frequency feed of the present application. The dual-frequency feed shown in Figure 3-2 includes a service waveguide 1 and multiple amplitude-ratio waveguides 2 . Wherein, the service waveguide 1 shown in Figure 3-2 can be understood with reference to the service waveguide 1 shown in Figure 3-1, and details are not repeated here. Different from Fig. 3-1, the plurality of proportional feed tubes 2 shown in Fig. 3-2 may include a third proportional feed tube in addition to the first proportional feed tube 21 and the second proportional feed tube 22 23 and the fourth ratio feeding tube 24. Similar to the first proportional feed pipe 21, each proportional feed pipe in the third proportional feed pipe 23 and the fourth proportional feed pipe 24 may include two ports. For the convenience of description, the embodiment of the present application uses the first The visible ports of the three-amplitude feed tube 23 and the fourth amplitude feed tube 24 in FIG. 3-2 are called the first end of the corresponding waveguide, and the ports that are not visible in FIG. end. The first end of the third ratio feed tube 23 and the first end of the fourth ratio feed tube 24 can be used to receive the third sub-signal and the fourth sub-signal in the beam respectively, the third ratio feed tube 23 of the first end The two ends and the second end of the fourth proportional feed tube 24 can be used to connect the self-tracking module respectively, and the self-tracking module can be used to adjust the The maximum gain direction of the antenna device to increase the gain of the first signal and the second signal.

Since the third ratio waveguide 23 and the fourth ratio waveguide 24 are arranged symmetrically about the axis 20 of the outer waveguide, when the antenna device is aligned with the maximum gain direction, the gain of the signal received by the third ratio waveguide and the fourth ratio waveguide Similarly, therefore, the self-tracking module can be used to adjust the maximum gain direction of the antenna device according to the third sub-signal and the fourth sub-signal, so as to increase the gain of the first signal and the second signal.

Optionally, the line connecting the first proportional waveguide 21 and the second proportional waveguide 22 is perpendicular to the line connecting the third proportional waveguide 23 and the fourth proportional waveguide 24 . In this way, the self-tracking module can two-dimensionally adjust the maximum gain direction of the antenna device according to the first sub-signal, the second sub-signal, the third sub-signal and the fourth sub-signal. For example, the self-tracking module can adjust the pitch angle of the antenna device according to the first sub-signal and the second sub-signal, adjust the azimuth angle of the antenna device according to the third sub-signal and the fourth sub-signal, or the self-tracking module can adjust the antenna device according to the first sub-signal and the second sub-signal to adjust the azimuth angle of the antenna device, and adjust the elevation angle of the antenna device according to the third sub-signal and the fourth sub-signal.

In the dual-frequency feed shown in Figure 3-1 or Figure 3-2, the service waveguide 1 and multiple proportional amplitude waveguides 2 are sequentially nested in the columnar structure 3 from the inside to the outside, which is easy to assemble and reduces the processing of the dual-frequency feed cost.

Figure 3-1 and Figure 3-2 take circular waveguides as examples for the outer waveguide 12 and the inner waveguide 11. Optionally, the outer waveguide 12 and/or the inner waveguide 11 may be waveguides of other shapes, such as rectangular waveguides.

Figure 3-1 and Figure 3-2 take the multiple proportional amplitude waveguides 2 as rectangular waveguides as an example. Optionally, some or all of the multiple proportional amplitude waveguides 2 can be waveguides of other shapes, for example, they can be circular waveguide.

The embodiment of the present application does not limit the material of the service waveguide 1 and/or the multiple amplitude-scale waveguides 2. Optionally, the service waveguide 1 and/or the multiple amplitude-scale waveguides 2 may also be metal feed pipes.

In Fig. 3-1 and Fig. 3-2, the outer waveguide 12, the inner waveguide 11 and a plurality of proportional amplitude waveguides 2 run through both ends of the columnar structure 3 respectively. For ease of description, the embodiment of the present application refers to the port of the columnar structure 3 visible in Figure 3-1 or Figure 3-2 as the first end of the columnar structure 3, which will not be visible in Figure 3-1 or Figure 3-2 The port of is called the second end of the columnar structure 3 . The first end of the outer waveguide 12, the first end of the inner waveguide 11 and the first end of each amplitude waveguide in the plurality of proportional amplitude waveguides 2 can face the same end of the columnar structure 3, for example, towards the first end of the columnar structure 3. end.

Optionally, the frequency band of the signal received by each of the multiple amplitude ratio waveguides 2 can be equivalent to the frequency band of the second signal received by the outer waveguide 12, for example, the frequency band of any sub-signal in the third signal is second frequency band. Or, optionally, the frequency band of the signal received by each of the multiple amplitude ratio waveguides 2 can be equivalent to the frequency band of the first signal received by the inner waveguide 11, for example, the frequency band of any sub-signal in the third signal The frequency band is the first frequency band. Or, optionally, the signals received by some of the proportional amplitude waveguides 2 are in the first frequency band, and the signals received by some of the proportional amplitude waveguides are in the second frequency band.

In FIG. 3-1 and FIG. 3-2 , a plurality of proportional-amplitude waveguides 2 are arranged outside the outer waveguide 12 . Or, optionally, a plurality of proportional amplitude waveguides 2 may be arranged between the inner wall of the outer waveguide 12 and the outer wall of the inner waveguide 11 . Or, optionally, some of the proportional amplitude waveguides 2 are arranged outside the outer waveguide 12 , and some of the proportional amplitude waveguides are arranged between the outer waveguide 12 and the inner waveguide 11 .

In order to allow multiple ratio-amplitude waveguides 2 to receive the main lobe signal in the beam, and to increase the gain of the first signal and/or the second signal, in the process of processing the dual-frequency feed, on the one hand, it can be minimized on the other hand. Compared with the distance between the amplitude waveguides, on the other hand, it is necessary to increase the beam size corresponding to the signal received by the service waveguide 1 as much as possible. Wherein, the proportional amplitude waveguides arranged on the opposite side can be, for example, the first proportional amplitude feed tube 21 and the second proportional amplitude feed tube 22 shown in FIG. 3-2, and/or, for example, the third proportional amplitude feed tube shown in FIG. 3-2. Amplitude feeding pipe 23 and fourth ratio feeding pipe 24.

Fig. 4 schematically shows a partial structure of another embodiment of a dual-frequency feed source of the present application. In order to improve the beam size corresponding to the signal received by the service waveguide 1, optionally, referring to FIG. 4, the first end of the columnar structure 3 may be provided with a surrounding structure 4-1 symmetrical to the axis 20 of the outer waveguide. The surrounding structure 4-1 Surround the first end of the outer waveguide 12, the first end of the inner waveguide 11, and the first end of each of the plurality of proportional amplitude waveguides 2 within the surrounding edge.

The enclosure structure 4-1 is used to increase the equivalent beam size of the outer waveguide for transmitting and receiving signals, increase the gain of the low-frequency feed source, and improve the overall performance of the low-frequency antenna. In this way, even if the aperture of the outer waveguide is reduced and the distance between the ratio waveguides arranged on opposite sides among the plurality of ratio ratio waveguides 2 is reduced, it is still beneficial for the plurality of ratio ratio waveguides 2 to receive the main lobe signal in the beam, ensuring that the tracking logic is correct , to improve the self-tracking accuracy.

The surrounding structure 4-1 shown in FIG. 4 takes a hollow cylindrical shape as an example. Optionally, the surrounding structure can be in other shapes, for example, it can be trumpet-shaped. The cross section of the surrounding structure 4-1 shown in Figure 4 on a plane perpendicular to the axis 20 is circular, and optionally, the cross section of the surrounding structure 4-1 on this plane can also be other shapes, such as square .

Figure 4 takes a plurality of ratio-amplitude waveguides 2 including four ratio-amplitude waveguides as an example. Optionally, the plurality of ratio-amplitude waveguides may include more or less ratio-amplitude waveguides, such as the two ratio-amplitude waveguides shown in Figure 3-1 Amplitude waveguide.

Optionally, continuing to refer to FIG. 4 , the first end of the columnar structure 3 may also be provided with an annular groove 4-2 symmetrical to the axis 20, and the annular groove 4-2 is located between the surrounding structure 4-1 and the outer waveguide. Between 12. The annular groove 4-2 can be used to improve the equalization of the beam, for example, to make the width of the beam in the second frequency band in the elevation plane and the width in the azimuth plane close to each other.

If a plurality of ratio-amplitude waveguides 2 are arranged outside the outer waveguide 12, in order to reduce the distance between the ratio-amplitude waveguides arranged on the opposite side, the maximum direction of the beams received by the plurality of ratio-amplitude waveguides 2 is adjusted to be closer to the center of the service waveguide 1 , it is necessary to minimize the distance between each of the multiple proportional amplitude waveguides 2 and the outer wall of the outer waveguide 12 . However, since the length of the service waveguide 1 and the plurality of proportional amplitude waveguides 2 is usually longer, in the process of setting the service waveguide 1 and the plurality of proportional amplitude waveguides 2 throughout the columnar structure 3, the plurality of proportional amplitude waveguides 2 are placed close to the outer waveguide The outer wall of 12 will increase processing difficulty. Optionally, the distance between the first end of any one of the multiple proportional waveguides 2 and the axis 20 is smaller than the distance between the second end of the corresponding proportional waveguide among the multiple proportional waveguides and the axis, which is beneficial to reduce The distance between each proportional amplitude waveguide in the plurality of proportional amplitude waveguides 2 and the outer wall of the outer waveguide. Taking the first ratio waveguide 21 as an example, the distance between the second end of the first ratio waveguide 21 and the axis 20 is smaller than the distance between the first end of the first ratio waveguide 21 and the axis 20, so that only the first ratio It is only necessary to reduce the distance between the first end of the waveguide 21 and the axis 20 , which is beneficial to reduce the difficulty of the process.

Optionally, the columnar structure 4 may include two sub-columnar structures, and a plurality of proportional-amplitude waveguides 2 and service waveguides 1 run through the two sub-columnar structures in sequence. Taking the plurality of ratio-amplitude waveguides 2 including four ratio-amplitude waveguides as an example, in one of the sub-columnar structures (called the primary columnar structure), any one of the plurality of ratio-amplitude waveguides 2 is arranged parallel to the axis 20 , and the distance between the two is assumed to be d1. The other sub-columnar structure (referred to as a conversion head) of the two sub-columnar structures can be shown in FIG. 5, for example. Referring to FIG. 5 , the conversion head 5 includes a via hole 51 corresponding to the outer waveguide 12 , and also includes a plurality of via holes 52 corresponding to the amplitude waveguide 2 . For ease of description, in the embodiment of the present application, the visible end of the conversion head 5 and any one of the via holes in the conversion head 5 is called the first end of the corresponding structure, and the invisible end in FIG. 5 is called the first end of the corresponding structure. Two ends. For any one of the via holes 52 , the distance between its first end and the axis 20 is smaller than the distance between its second end and the axis 20 . Assuming that FIG. 5 shows the via hole 521 of the first proportional amplitude waveguide 21, the via hole 522 of the second proportional amplitude waveguide 22 and the via hole 523 of the third proportional amplitude waveguide 23, taking the via hole 521 as an example, assuming that the via hole 521 The distance between the first end of the via hole 521 and the axis 20 may be d2, and the distance between the second end of the via hole 521 and the axis 20 is d1, wherein d2 is smaller than d1. The second end of the primary columnar structure is used to connect to the back-end system introduced above, the first end of the primary columnar structure is matched with the second end of the conversion head 5, and the service waveguide 1 receives the first signal through the first end of the via hole 51 and the second signal, multiple proportional amplitude waveguides 2 receive the third signal through the via hole 52. Since d2 is smaller than d1, it is beneficial to reduce the distance between the proportional amplitude waveguides arranged on opposite sides and reduce the difficulty of the process.

Optionally, referring to FIG. 6 , the dual-frequency feed provided by the embodiment of the present application may also include a back-end structure 6 through which the service waveguide 1 and/or multiple amplitude-scale waveguides 2 may be connected to the back-end system. For example, the inner waveguide 11 can be connected to the first signal processing module through the back-end structure 6, and/or the outer waveguide 12 can be connected to the second signal processing module through the back-end structure, and/or, a plurality of proportional amplitude waveguides 2 can Connected via backend structure 6.

Optionally, referring to Fig. 7-1 and Fig. 7-2, a switch network 7 may be provided in the back-end structure 6, and the second end of each proportional-amplitude waveguide in the plurality of proportional-amplitude waveguides 2 may pass through the switch network 7 Connected to the self-tracking module, the switch network 7 is used to input the signal transmitted by each of the multiple proportional-amplitude waveguides 2 into the self-tracking module one by one. In this way, the self-tracking module only needs one port to receive signals from multiple amplitude ratio waveguides 2, which is beneficial to reduce the circuit complexity of the self-tracking module.

Fig. 7-1 is intended to introduce a switch network 7 connected to a plurality of proportional-amplitude waveguides 2, therefore, the details of the service waveguide 1 are not specifically shown. For the specific structure of the service waveguide 1 in Fig. 7-1, reference may be made to any of the preceding embodiments.

The switch network 7 may include a plurality of channels corresponding to the plurality of proportional-amplitude waveguides 2, and the plurality of channels are turned on or off under the control of the switch component. Taking a plurality of proportional amplitude waveguides 2 including the first proportional amplitude waveguide 21, the second proportional amplitude waveguide 22, the third proportional amplitude waveguide 23 and the fourth proportional amplitude waveguide 24 as an example, continue to refer to FIG. 7-1, the switch network 7 includes input Channel 71, input channel 72, input channel 73 and input channel 74, also include output channel 75, output channel 76 and output channel 77, can also include switch assembly, this switch assembly can include switch 78-1, switch 78-2 and Switch 78-3. The first sub-signal received by the first end of the first proportional waveguide 21 enters the input channel 71 through the second end of the first proportional waveguide 21, enters the output channel 75 through the switch 78-1, and then passes through the switch 78-3 into output channel 77. The second sub-signal received by the first end of the second amplitude waveguide 22 enters the input channel 72 through the second end of the second amplitude waveguide 21, enters the output channel 76 through the switch 78-2, and then passes through the switch 78-3 into output channel 77. By analogy, the third sub-signal received by the third proportional waveguide 23 enters the output channel 77 through the input channel 73, switch 78-1, output channel 75, and switch 78-3 in turn, and the fourth sub-signal received by the fourth proportional waveguide 24 The sub-signal enters the output channel 77 via the input channel 74, the switch 78-2, the output channel 76, and the switch 78-3 in sequence. The output channel 77 is used to input the received signal into the self-tracking module. The embodiment of the present application does not limit the implementation of the switch assembly. Optionally, any switch in the switch assembly may be a ferrite switch or a radio frequency micro-electro-mechanical system (micro-electro-mechanical system, MEMS) switch.

Processing the switch network 7 inside the back-end structure 6 is only a process implementation method. The embodiment of the present application does not limit the arrangement of the switch network 7 inside the back-end structure 6, and the embodiment of the present application does not limit the shape of the back-end structure 6. .

Optionally, multiple transmission arms can be set in the back-end structure 6, and multiple proportional-amplitude waveguides 2 can be connected to the self-tracking module through a corresponding number of transmission arms. Taking the plurality of proportional-amplitude waveguides 2 including the first proportional-amplitude waveguide 21 and the second proportional-amplitude waveguide 22 as an example, referring to FIG. 8 , the back-end structure 6 may include a first transmission arm 8-1 and a second transmission arm 8-2. Referring to Fig. 8, the second end of the first scale waveguide 21 can be connected with one end of the first transmission arm 8-1, and the other end of the first transmission arm 8-1 is used for connecting the self-tracking module, thereby the first scale waveguide The signal in the waveguide 21 is input from the tracking module. Continuing to refer to Fig. 8, the second end of the second proportional waveguide 22 can be connected with one end of the second transmission arm 8-2, and the other end of the second transmission arm 8-2 is used for connecting the self-tracking module, thereby the second proportional The signal in the amplitude waveguide 22 is input to the self-tracking module.

Fig. 8 is intended to introduce a plurality of transmission arms connected to a plurality of proportional amplitude waveguides 2, therefore, details of the service waveguide 1 are not specifically shown. For the specific structure of the service waveguide 1 in FIG. 8 , reference may be made to any of the foregoing embodiments.

Processing a plurality of transmission arms inside the back-end structure 6 is only a process implementation method. The embodiment of the present application does not limit the arrangement of multiple transmission arms inside the back-end structure 6, and the embodiment of the application does not limit the rear-end structure 6. shape.

Fig. 9-1 schematically shows a partial structure of another embodiment of a dual-frequency feed source of the present application. Optionally, with reference to FIG. 9-1, an Ortho-Mode Transducer (Ortho-Mode Transducer, OMT) 9-1 (called the first OMT) connected to the second end of the outer waveguide 12 can be arranged in the back-end structure 6 , the outer waveguide 12 can be connected to the second signal processing module through the OMT 9-1, which is beneficial to realize the dual polarization of the second frequency band (or low frequency signal).

Machining the first OMT inside the back-end structure 6 is only a process implementation. The embodiment of the present application does not limit the first OMT to be arranged inside the back-end structure 6, and the embodiment of the present application does not limit the shape of the back-end structure 6. .

Fig. 9-2 schematically shows a partial structure of another embodiment of a dual-frequency feed source of the present application. Optionally, with reference to Fig. 9-2, an OMT 9-2 (called the second OMT) connected to the second end of the inner waveguide 11 can be set in the back-end structure 6, and the inner waveguide 11 can be connected to the second end of the inner waveguide 11 through the OMT 9-2. A signal processing module is beneficial to realize the dual polarization of the first frequency band (or high-frequency signal).

Machining the second OMT inside the back-end structure 6 is only a process implementation. The embodiment of the present application does not limit the second OMT to be arranged inside the back-end structure 6, and the embodiment of the present application does not limit the shape of the back-end structure 6. .

Optionally, referring to Fig. 10-1 and Fig. 10-2, a matching medium 101 may also be provided between the outer waveguide 12 and the inner waveguide 11, and the matching medium 101 is used to reduce the low-frequency voltage standing wave ratio. The matching medium 101 shown in FIG. 10-1 and FIG. 10-2 is only an example, and the application does not limit the specific shape of the matching medium 101 .

The embodiment of the present application does not limit that the service waveguide 1 and multiple amplitude-scale waveguides 2 are nested in a cylindrical columnar structure 3 as shown in Fig. 3-1 and Fig. 3-2. Optionally, the service waveguide 1 and multiple proportional amplitude waveguides 2 may be nested in columnar structures of other shapes, or the service waveguide 1 and multiple proportional amplitude waveguides 2 may not be arranged in a columnar structure, but multiple The proportional-amplitude waveguide 2 can be attached to the outer surface of the outer waveguide 12 .

It should be noted that Fig. 1 and Fig. 2 take the application of the dual-frequency feed provided by the embodiment of the present application to a wireless communication system as an example, and the dual-frequency feed provided by the embodiment of the present application can also be applied to other systems other than the wireless communication system In applications such as satellite systems or radar systems.

An embodiment of the present application further provides an antenna device, where the antenna device may include the dual-frequency feed introduced in any one of the above embodiments. Optionally, the antenna device may be, for example, the antenna device shown in FIG. 1 or FIG. 2 . FIG. 2 is an example of a feed-back antenna device. Optionally, the antenna device may also be a feed-forward antenna device. Optionally, the antenna device provided in this embodiment of the present application may not include a secondary reflector. Optionally, the antenna device can be used not only for receiving beams, but also for transmitting beams.

An embodiment of the present application further provides a wireless device, and the wireless device may include the foregoing antenna device. Optionally, the wireless device may be a wireless communication device. As an example, the wireless device may be the wireless communication device shown in FIG. 2 .

After connecting multiple proportional-amplitude waveguides 2 in the dual-frequency feed provided by the embodiment of the present application to the self-tracking module, the self-tracking module can adjust the maximum Gain angle, so that the maximum gain angle of the antenna device is aligned with the uplink beam direction, so as to increase the gain of the first signal and the second signal. The embodiment of the present application does not limit how the self-tracking module adjusts the antenna device. Optionally, the self-tracking module can adjust the maximum gain angle of the antenna device by adjusting the secondary reflection surface of the antenna device.

In order to verify the performance of the antenna device provided by the embodiment of the present application, the following introduces the performance of the antenna device prepared according to the solution of the embodiment of the present application. The inner waveguide 11 and the outer waveguide 12 of the antenna device are respectively processed to receive 80GHz and 15GHz wireless signals, and a plurality of proportional amplitude waveguides 2 are arranged outside the outer waveguide 12 .

Fig. 11 shows the beam pattern of a 15 GHz signal received by the outer waveguide 12 of the antenna device. The abscissa in FIG. 11 represents the pattern angle, and the ordinate represents the pattern gain. Curve 11-1 (marked with a black triangle in Figure 11), Curve 11-2 (marked with a black circle in Figure 11), Curve 11-3 (marked with a white triangle in Figure 11) and Curve 11-4 (marked with a white triangle in Figure 11 ) represent the 15G service beam patterns tested when the sub-reflector of the antenna device is rotated by 0°, 5°, 10° and 18°, respectively. The maximum gains in curve 11-1 to curve 11-4 are located at 0°, 0.34°, 0.74° and 1.45° respectively, that is to say, by rotating the sub-reflector 18° from 0°, the coverage of the 15GHz beam by the antenna device The range can basically reach 0 to 1.5°, and the gain drop does not exceed 1.6dB. In other words, when the maximum gain direction of the antenna device deviates from the 15GHz beam by 1.5°, the maximum gain direction of the antenna device can be aligned with the 15GHz beam by rotating the secondary reflector by 18°, and the gain drop does not exceed 1.6dB.

FIG. 12 respectively shows the beam patterns of the 15 GHz signals received by the outer waveguide 12 of the antenna device and the plurality of ratio-amplitude waveguides 2 when the secondary reflector is rotated by 5°. The abscissa in FIG. 12 represents the pattern angle, and the ordinate represents the pattern gain. Curve 12-1 (marked with a black triangle in FIG. 12 ), curve 12-2 (marked with a black circle in FIG. 12 ) and curve 12-3 (marked with a white triangle in FIG. 12 ) represent the first ratio of the antenna device, respectively. Beam patterns of signals received by the amplitude waveguide 21, the outer waveguide 12 and the second amplitude waveguide 22. The maximum gain in the curve 12-2 is at 0.34°, the focus of the curve 12-1 and the curve 12-3 is at 0.36°, it can be seen that the angle of the pattern corresponding to the intersection of the curve 12-1 and the curve 12-3 is the same as that of the curve 12- The angles of the directional diagrams corresponding to the maximum gain point of 2 basically coincide. At other angles of the sub-reflector, the angle of the pattern corresponding to the intersection point of the curve 12-1 and the curve 12-3 basically coincides with the angle of the pattern corresponding to the maximum gain point of the curve 12-2. That is to say, in the process of rotating the secondary reflector, if the gain of the first sub-signal received by the first proportional waveguide 21 is equal to the gain of the second sub-signal received by the second proportional waveguide 22, it can be considered that the external The gain of the second signal received by the waveguide 12 corresponds to the maximum gain of the beam, that is, the direction of the maximum gain of the antenna device is aligned with the beam of 15 GHz. In the process of rotating the secondary reflector, if the gain of the first sub-signal received by the first proportional waveguide 21 is smaller than the gain of the second sub-signal received by the second proportional waveguide 22, it can be considered that the maximum gain direction of the antenna device is The 15 GHz beam is deviated towards the direction of the first scaled waveguide 21 . In the process of rotating the secondary reflector, if the gain of the first sub-signal received by the first proportional waveguide 21 is greater than the gain of the second sub-signal received by the second proportional waveguide 22, it can be considered that the maximum gain direction of the antenna device is The 15 GHz beam is deviated in the direction of the second scaled waveguide 21 . It can be seen that the antenna device provided by the embodiment of the present application is beneficial to realize the self-tracking and alignment of the low-frequency beam.

Fig. 13 shows the beam pattern of the 80 GHz signal received by the inner waveguide 11 of the antenna device. The abscissa in Fig. 13 represents the pattern angle, and the ordinate represents the pattern gain. Curve 13-1 (marked with a black triangle in Figure 13), Curve 13-2 (marked with a black circle in Figure 13), Curve 13-3 (marked with a white triangle in Figure 13) and Curve 13-4 (marked with a white triangle in Figure 13 ) represent the 80G service beam patterns tested when the sub-reflector of the antenna device is rotated by 0°, 5°, 10° and 18° respectively. The maximum gains in curve 13-1 to curve 13-4 are located at 0°, 0.38°, 0.77° and 1.24° respectively, that is to say, by rotating the sub-reflector from 0° by 18°, the coverage of the 80GHz beam by the antenna device The range can basically reach 0 to 1.5°, and the gain drop does not exceed 8dB. In other words, when the maximum gain direction of the antenna device deviates from the 80GHz beam by 1.5°, by turning the secondary reflector by 18°, it is beneficial to align the maximum gain direction of the antenna device with the 80GHz beam, and the gain drop does not exceed 8dB.

FIG. 14 respectively shows the beam pattern of the 80 GHz signal received by the inner waveguide 11 and the plurality of ratio-amplitude waveguides 2 of the antenna device when the secondary reflector is rotated by 5°. The abscissa in FIG. 14 represents the pattern angle, and the ordinate represents the pattern gain. Curve 14-1 (marked with a black triangle in FIG. 14 ), curve 14-2 (marked with a black circle in FIG. 14 ) and curve 14-3 (marked with a white triangle in FIG. 14 ) represent the first ratio of the antenna device, respectively. Beam patterns of signals received by the amplitude waveguide 21 , the inner waveguide 11 and the second amplitude waveguide 22 . The maximum gain in curve 14-2 is at 0.38°, and the focus of curve 14-1 and curve 14-3 is at 0.36°. It can be seen that the direction diagram angle corresponding to the intersection of curve 14-1 and curve 14-3 is the same as curve 14- The angles of the directional diagrams corresponding to the maximum gain point of 2 basically coincide. At other angles of the sub-reflector, the angle of the pattern corresponding to the intersection point of the curve 14-1 and the curve 14-3 basically coincides with the angle of the pattern corresponding to the maximum gain point of the curve 14-2. That is to say, in the process of rotating the secondary reflector, if the gain of the first sub-signal received by the first proportional waveguide 21 is equal to the gain of the second sub-signal received by the second proportional waveguide 22, it can be considered that The gain of the first signal received by the waveguide 11 corresponds to the maximum gain of the beam, that is, the direction of the maximum gain of the antenna device is aligned with the beam of 80 GHz. In the process of rotating the secondary reflector, if the gain of the first sub-signal received by the first proportional waveguide 21 is smaller than the gain of the second sub-signal received by the second proportional waveguide 22, it can be considered that the maximum gain direction of the antenna device is The 80 GHz beam is deviated in the direction of the first scaled waveguide 21 . In the process of rotating the secondary reflector, if the gain of the first sub-signal received by the first proportional waveguide 21 is greater than the gain of the second sub-signal received by the second proportional waveguide 22, it can be considered that the maximum gain direction of the antenna device is The 80 GHz beam is deviated in the direction of the second scaled waveguide 21 . It can be seen that the antenna device provided by the embodiment of the present application is beneficial to realize self-tracking and alignment of high-frequency beams.

From Fig. 11 to Fig. 14, it can be seen that in the process of rotating the sub-reflector, if the gain of the first sub-signal received by the first amplitude-scale waveguide 21 is equal to the gain of the second sub-signal received by the second amplitude-scale waveguide 22 It can be considered that the gains of the second signal received by the outer waveguide 12 and the first signal received by the inner waveguide 11 correspond to the maximum gain of the beam, that is, the maximum gain direction of the antenna device is aligned with the 15GHz beam and the 80GHz beam at the same time. In the process of rotating the secondary reflector, if the gain of the first sub-signal received by the first proportional waveguide 21 is smaller than the gain of the second sub-signal received by the second proportional waveguide 22, it can be considered that the maximum gain direction of the antenna device is The 15GHz beam and the 80GHz beam are deviated towards the direction of the first scaled waveguide 21 . In the process of rotating the secondary reflector, if the gain of the first sub-signal received by the first proportional waveguide 21 is greater than the gain of the second sub-signal received by the second proportional waveguide 22, it can be considered that the maximum gain direction of the antenna device is The 15GHz beam and the 80GHz beam are deviated towards the direction of the second scaled waveguide 21 . It can be seen that the antenna device provided by the embodiment of the present application is conducive to realizing self-tracking alignment of the high-frequency beam and the low-frequency beam at the same time.

The term "and/or" appearing in this application may be an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may indicate: A exists alone, and A and B exist at the same time , where B exists alone, where A and B can be singular or plural. In addition, the character "/" in this application generally indicates that the contextual objects are an "or" relationship. In the present application, "plurality" means two or more.

The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, and this is merely a description of the manner in which objects with the same attribute are described in the embodiments of the present application. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, product, or apparatus comprising a series of elements is not necessarily limited to those elements, but may include elements not expressly included. Other elements listed explicitly or inherent to the process, method, product, or apparatus.

The technical solutions provided by this application have been introduced in detail above. In this application, specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only used to help understand the methods and core ideas of this application. At the same time, for those skilled in the art, based on the idea of this application, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as limiting the application.

Claims

A dual-frequency feed source, characterized in that it is applied to an antenna device, and the antenna device is used to receive beams, and the dual-frequency feed source includes a service waveguide and a plurality of ratio-amplitude waveguides, wherein the service waveguide includes an outer waveguide and an inner waveguide coaxial with the outer waveguide nested inside the outer waveguide, the plurality of proportional amplitude waveguides including a first proportional amplitude waveguide and a second proportional amplitude waveguide arranged symmetrically with respect to the axis of the outer waveguide ;

The first end of the inner waveguide, the first end of the outer waveguide, and the first ends of the plurality of ratio-amplitude waveguides are respectively used to receive the first signal, the second signal, and the third signal in the beam, The second end of the plurality of ratio-amplitude waveguides is used to connect to a self-tracking module, and the self-tracking module is used to adjust the maximum gain direction of the antenna device according to the third signal, so as to increase the first signal and /or the gain of the second signal.
The dual-frequency feed according to claim 1, wherein the dual-frequency feed further comprises a columnar structure, and the outer waveguide, the inner waveguide, and the plurality of ratio-amplitude waveguides respectively pass through the columnar structure , and the first end of the outer waveguide, the first end of the inner waveguide and the first end of each of the ratio-amplitude waveguides face the first end of the columnar structure.
The dual-frequency feed according to claim 2, wherein the plurality of proportional-amplitude waveguides are arranged outside the outer waveguide.
The dual-frequency feed according to claim 3, wherein the first end of the columnar structure is provided with a surrounding structure symmetrical to the axis, and the surrounding structure connects the first end of the outer waveguide to , the first end of the inner waveguide and the first ends of the plurality of proportional-amplitude waveguides surround the inside of the perimeter.
The dual-frequency feed according to claim 3, wherein the surrounding structure is hollow cylindrical or horn-shaped.
The dual-frequency feed according to claim 4 or 5, wherein the first end of the columnar structure is further provided with an annular groove symmetrical to the axis, and the annular groove is located at the edge structure and the outer waveguide.
The dual-frequency feed according to any one of claims 1 to 6, characterized in that the dual-frequency feed further comprises a switch network, and the second ends of the plurality of proportional-amplitude waveguides are connected through the switch network In the self-tracking module, the switch network is used to input the signals transmitted in the plurality of proportional amplitude waveguides into the self-tracking module one by one.
The dual-frequency feed according to any one of claims 1 to 7, wherein the distance between the first ends of the plurality of proportional amplitude waveguides and the axis is smaller than the second ends of the plurality of proportional amplitude waveguides distance from the end to the axis.
The dual-frequency feed according to any one of claims 1 to 8, wherein the plurality of proportional amplitude waveguides further include a third proportional amplitude waveguide and a fourth proportional amplitude waveguide arranged symmetrically with respect to the axis of the outer waveguide. waveguide.
The dual-frequency feed according to any one of claims 1 to 9, wherein the dual-frequency feed further comprises a first orthogonal mode polarization separator OMT, and the second end of the outer waveguide is connected to The first OMT.
The dual-frequency feed according to any one of claims 1 to 10, wherein the dual-frequency feed further comprises a second orthogonal mode polarization separator OMT, the second end of the inner waveguide is connected to The second OMT.
An antenna device, characterized by comprising a reflecting surface and the dual-frequency feed source according to any one of claims 1-11.
A wireless communication device, characterized by comprising the antenna device according to claim 12.