WO2021056642A1 - Millimeter-wave communication system based on directional antennas facing fixed directions - Google Patents

Millimeter-wave communication system based on directional antennas facing fixed directions Download PDF

Info

Publication number
WO2021056642A1
WO2021056642A1 PCT/CN2019/112235 CN2019112235W WO2021056642A1 WO 2021056642 A1 WO2021056642 A1 WO 2021056642A1 CN 2019112235 W CN2019112235 W CN 2019112235W WO 2021056642 A1 WO2021056642 A1 WO 2021056642A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
antennas
communication system
directional
wave communication
Prior art date
Application number
PCT/CN2019/112235
Other languages
French (fr)
Chinese (zh)
Inventor
齐伟
常喜文
潘丽
吴育炽
王玲
Original Assignee
安捷利（番禺）电子实业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 安捷利（番禺）电子实业有限公司 filed Critical 安捷利（番禺）电子实业有限公司
Publication of WO2021056642A1 publication Critical patent/WO2021056642A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H01Q3/247—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching by switching different parts of a primary active element
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits

Definitions

  • the invention belongs to the technical field of millimeter wave communication, and in particular relates to a millimeter wave communication system based on a directional antenna with a fixed direction.
  • this traditional antenna array method requires multiple millimeter wave circuits to work at the same time. Because it uses a power divider and a numerically controlled phase shifter, the circuit processing cost is high, and the amplitude and phase alignment between each channel is also very complicated, and its power consumption Also larger. In addition, the beamforming algorithm is also more complicated. In short, the traditional method of relying on antenna arrays to complete beamforming and tracking has the disadvantages of high power consumption, complex circuits, complex calibration, and complex algorithms.
  • the general AiP (packaged built-in antenna) method is not conducive to the flexible design of integrators (such as mobile phone integrators).
  • integrators such as mobile phone integrators
  • the design problem of the millimeter wave antenna in the double-sided screen design and metal frame design is more difficult to solve.
  • the antenna is a screen-based design, the traditional phased array method is difficult to achieve high light transmission and phase shifting arrays in thin spaces due to the high line density.
  • the AiP antenna is located inside the mobile phone, and the loss and shape inconsistency of the housing will also affect Antenna performance.
  • the present invention provides a millimeter wave communication system based on a directional antenna with a fixed direction, which has the characteristics of simple structure, simple tracking algorithm and power saving, and can easily receive and synthesize signals from multiple directions at the same time.
  • the performance can be used to improve the signal-to-noise ratio of the communication system and increase the communication coverage.
  • a millimeter wave communication system based on a directional antenna with a fixed direction including:
  • a transmitter for generating a transmitting antenna signal the output end of which is connected to a plurality of antennas; a switch is provided on the connection path between each of the antennas and the output end of the transmitter;
  • a receiver for receiving antenna signals the input end of which is connected to the plurality of switches to be connected to the plurality of antennas;
  • the multiple antennas include multiple directional antennas with fixed directions, and the multiple directional antennas with fixed directions are set to be fixedly facing in multiple different directions. Specifically, considering the shielding effect of human hands, some parts should be provided.
  • the direction of the antenna repeatedly covers part of the direction.
  • the invention discloses a millimeter wave communication system based on a directional antenna with a fixed direction.
  • the part that does not include an antenna and a switch has only a single path, no phase shifter, and does not require traditional phased array antenna calibration. It has a simple structure and tracking
  • the algorithm is simple and power-saving, and with the addition of channels, the technical effect of simultaneous reception and synthesis of signals from multiple directions can be easily achieved, which can improve the signal-to-noise ratio of the communication system and increase the communication coverage.
  • the transmitter has a superheterodyne structure or a direct frequency conversion structure
  • the receiver has a superheterodyne structure or a direct frequency conversion structure
  • the transmitter includes:
  • An up-converter for outputting intermediate frequency signals, the output terminal of which is connected to the input terminal of the first mixer;
  • a transmission local oscillator for outputting a transmission local oscillator signal, the output terminal of which is connected to the input terminal of the first mixer;
  • the output end of the first mixer is connected to the input end of the power amplifier
  • the output end of the power amplifier is connected to the plurality of switches to be connected to the plurality of antennas;
  • the receiver includes:
  • a low noise amplifier for receiving antenna signals, the input end of which is connected to the plurality of switches to be connected to the plurality of antennas;
  • a second mixer the input terminal of which is connected to the output terminal of the low noise amplifier
  • a receiving local oscillator for outputting a receiving local oscillator signal, the output terminal of which is connected to the input terminal of the second mixer;
  • the down-converter has its input terminal connected to the output terminal of the second mixer.
  • the system also includes a duplexer
  • connection paths between the power amplifier and the low noise amplifier and the switch of the antenna all pass through the duplexer.
  • the system also includes a power divider and a power combiner
  • the output end of the first mixer is connected to the input end of the power divider, and the output end of the power divider is connected to the plurality of switches through a plurality of transmission paths to connect to the plurality of antennas; each 1.
  • a phase shifter and a power amplifier are provided on the transmission path;
  • the input end of the second mixer is connected to the output end of the power combiner, and the input end of the power combiner is connected to the plurality of switches through a plurality of receiving paths to be connected to the plurality of antennas; each A phase shifter and a low noise amplifier are arranged on the receiving path.
  • the directional antenna with a fixed direction is a horn antenna, a tapered slot antenna, an extension antenna, a microstrip antenna array, a slot antenna array or a dipole antenna array or other antenna arrays with a fixed direction.
  • the multiple antennas further include one or two of a phased array antenna and a weakly directional antenna.
  • a frequency multiplier is arranged between the transmitting local oscillator and the first mixer, and a frequency multiplier is arranged between the receiving local oscillator and the second mixer.
  • the plurality of antennas are arranged in a plurality of radio frequency front ends, and the plurality of radio frequency front ends are connected to the receiver through a multi-stage switch.
  • the directional antenna with a fixed direction is an antenna that uses left-hand material to enhance directivity
  • Fig. 1 is a schematic structural diagram of a conventional millimeter wave communication system described in the background art of the present invention
  • FIG. 2 is a schematic structural diagram of a millimeter wave communication system based on a directional antenna with a fixed direction in the specific embodiment of the present invention
  • FIG. 3 is a schematic diagram of the specific structure of the transmitter and the receiver described in the specific embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a further improved millimeter wave communication system described in the specific embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the further improved millimeter wave communication system described in the specific embodiment of the present invention for simultaneous reception of signals in two directions.
  • this specific embodiment discloses a millimeter wave communication system based on a directional antenna with a fixed direction, including a transmitter, a receiver, and multiple antennas.
  • the output end of the transmitter for generating the transmission antenna signal is connected to multiple antennas; a switch is provided on the connection path between each antenna and the output end of the transmitter.
  • the input terminal of the receiver for receiving antenna signals is connected to multiple switches to be connected to multiple antennas.
  • the multiple antennas include multiple directional antennas with fixed directions, and the multiple directional antennas with fixed directions are set to be fixed to a plurality of different directions.
  • the above disclosed system only has a single channel, no phase shifter, and does not require traditional phased array calibration. It has the characteristics of simple structure, simple tracking algorithm and power saving. After adding channels, it can improve the signal-to-noise ratio of the communication system. Increase communication coverage.
  • the transmitter described in this embodiment can adopt a superheterodyne structure or a direct frequency conversion structure.
  • the receiver can adopt a superheterodyne structure or a direct frequency conversion structure.
  • Those skilled in the art can use a superheterodyne structure or a direct frequency conversion structure. Need to choose, no matter which structure is adopted, it should be regarded as included in the scope of protection of this application.
  • the transmitter includes an up-converter, a transmitting local oscillator, and a first mixer.
  • the receiver includes a low-noise amplifier, a second mixer, a receiving local oscillator and a down-converter.
  • the output terminal of the up-converter and the output terminal of the transmitting local oscillator are both connected to the input terminal of the first mixer.
  • a frequency multiplier is provided between the transmitting local oscillator and the first mixer.
  • the output end of the mixer is connected to the input end of the power amplifier, and the output end of the power amplifier is connected to the plurality of switches through the duplexer to be connected to the plurality of antennas; through the transmitter set in this way, the baseband IQ to be transmitted
  • the signal is first upconverted to an intermediate frequency by an up-converter to become an intermediate frequency signal.
  • the intermediate frequency signal enters the first mixer, and is mixed with the transmitted local oscillator output by the transmitting local oscillator in the first mixer to produce the millimeter wave to be transmitted.
  • the modulated signal, millimeter wave modulated signal is amplified by the power amplifier and then transmitted to the duplexer, and the transmitted signal that reaches the duplexer is transmitted to the best-effect directional antenna with fixed direction through the switch group.
  • the input end of the low-noise amplifier for receiving antenna signals is connected to a plurality of switches to connect to the multiple antennas through a duplexer, and the input end of the second mixer is connected to the output end of the low-noise amplifier ,
  • the output terminal of the receiving local oscillator for outputting the received local oscillator signal is connected to the input terminal of the second mixer, a frequency multiplier is arranged between the receiving local oscillator and the second mixer, and the output terminal of the second mixer Connect to the input terminal of the down converter.
  • the low-noise amplifier first amplifies the antenna signal received through the duplexer and transmits it to the second mixer, and the received local oscillator signal output by the receiving local oscillator in the second mixer The frequency mixing is performed to generate a received intermediate frequency signal, and the received intermediate frequency signal is converted and demodulated through a down-converter.
  • the present invention is not only suitable for frequency division duplex FDD, but also suitable for time division duplex TDD, that is, it is suitable for scenarios with and without duplexers, for example, under the conditions of time division duplex TDD. If a duplexer is not used, or if a better transceiver isolation effect is obtained through antenna array isolation, the low-noise amplifier and power amplifier can be directly connected to the antenna switch without a duplexer.
  • a further improvement of the present invention is that the system also includes a power divider and a power combiner; the output end of the first mixer is connected to the input end of the power divider, and the output end of the power divider passes through a plurality of The transmission path is connected to multiple switches to connect to multiple antennas; each transmission path is provided with a phase shifter and a power amplifier; the input of the second mixer is connected to the output of the power combiner, and the input of the power combiner passes through Multiple receiving paths are connected to multiple switches to connect to multiple antennas; each receiving path is provided with a phase shifter and a low-noise amplifier.
  • Fig. 4 shows a situation of the above-mentioned improvement of the present invention.
  • the output end of the power divider is connected to multiple switches through two transmission paths to connect to multiple antennas; each transmission path is provided with a shifter. Phaser and power amplifier; the input end of the power combiner is connected to multiple switches through two receiving paths to connect to multiple antennas; each receiving path is provided with a phase shifter and a low-noise amplifier.
  • each transmission path and a reception path pass through a duplexer at the same time for signal isolation. As mentioned above, if a better transmission and reception isolation effect is obtained through antenna array isolation, the duplexer may not be provided.
  • the circuit in Figure 4 achieves the purpose of receiving and transmitting two signals at the same time through a power divider and a power combiner. In this way, one antenna can work and the system can scan other antennas at the same time. It should be noted that, when one antenna works and the system scans other antennas at the same time, the circuit in Figure 4 may or may not be equipped with a duplexer.
  • FIG. 4 Another advantage of the structure in Figure 4 is that it can receive signals in two directions at the same time.
  • the signal of the base station antenna is reflected by the building 3 and the building 2 to form two signals, and is set with The equipment of this system receives at the same time, and the received signal needs to be phase synthesized.
  • Figure 4 shows the position of the phase shifter.
  • the phase shifter can also be placed in the subsequent circuit, such as the baseband synthesis circuit, which can improve The system signal-to-noise ratio increases the coverage area.
  • the directional antenna with fixed direction in this system can have multiple choices, such as the horn antenna in the aperture antenna, the single-port high-gain antenna such as the tapered slot antenna or the extension antenna, or the serial Feeding microstrip antenna or slot antenna or dipole antenna, or parallel feeding microstrip antenna or slot antenna or dipole antenna, or a combination of series and parallel microstrip antenna or slot antenna or dipole antenna Array, or other types of directional antennas.
  • the directional antenna with a fixed direction in this system can also be an antenna that uses left-handed material to enhance the directivity.
  • the solution in the present invention covers a single or a mixture of the above-mentioned antenna types.
  • the multiple antennas also include one or both of phased array antennas and weakly directional antennas, that is, multiple antennas in this system cover fixed-directional directional antennas, and weakly directional antennas.
  • the phased array antenna is used alone or in combination.
  • the system must include at least a set of directional antennas with a fixed direction.
  • multiple antennas in this system can be used in conjunction with a low-gain wide-lobe antenna and a narrow-beam antenna. The low-gain antenna can be used to roughly find the direction of the strong signal, and then the narrow-beam antenna can be used to accurately locate the signal direction.
  • each high-gain antenna is connected to the receiving path in turn through the switch in a certain order (such as preferentially cutting to the antenna at the adjacent angle), and the receiver can receive according to each directional antenna.
  • an antenna with a wider directional angle or a phased array antenna with fewer elements to roughly estimate the best angle of a strong signal, and then select a fixed-angle directional antenna to determine where the receiver should be connected. On an antenna.
  • multiple radio frequency front ends can be provided on the equipment to be installed in the system, and the multiple antennas are respectively provided on the multiple radio frequency front ends.
  • Multiple RF front ends are connected to the receiver through multi-stage switches.
  • the multi-pole switch can be used to select multiple directional antennas in multiple radio frequency front ends, so that the receiver can screen multiple antennas.
  • the front-end low-noise amplifier and power amplifier can be placed near each antenna to shorten the distance between them.
  • the intermediate frequency signal can be used as a long-distance transmission signal, and a switch circuit can be added to the intermediate frequency signal for line selection.
  • the antenna with a fixed direction in this embodiment can have different polarization directions, such as vertical polarization and horizontal polarization.
  • the receiving end may have at least two channels.
  • the transmitting end should also have at least two channels, which are used to receive signals in different polarization directions.
  • the millimeter wave communication system disclosed in this embodiment is suitable for: notebook computers, robots, monitors, cameras, embedded computers, tablet computers, mobile phones, media players, projectors, cameras, movie cameras, or other portable Equipment, wristbands, watches, earphones, smart glasses, sports cameras, or other wearable electronic products, TVs, displays, navigation equipment, automotive equipment (sensors, communications, radar, Internet of Vehicles), Internet of Things communication circuits , Base station antenna systems, game consoles, AR, VR and other electronic equipment.
  • the millimeter wave communication system in this embodiment realizes beamforming and beam tracking through simple switches. On the one hand, it reduces power consumption and saves the complex work and circuits of circuit calibration. On the other hand, it is very suitable for equipment designers according to different requirements. The specific appearance requires flexible equipment design. In addition, the use of multi-channel design can achieve a higher signal-to-noise ratio and coverage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Disclosed is a millimeter-wave communication system based on directional antennas facing fixed directions. The system comprises a transmitter for generating and transmitting an antenna signal, wherein an output end of the transmitter is connected to a plurality of antennas, and a switch is arranged on a connection path between each of the antennas and the output end of the transmitter; and a receiver for receiving the antenna signal, wherein an input end of the receiver is connected to a plurality of switches so as to connect to the plurality of antennas; the plurality of antennas comprise a plurality of directional antennas facing fixed directions; and the plurality of directional antennas facing fixed directions are configured to face a plurality of different fixed directions. The millimeter-wave communication system disclosed in the present invention has the characteristics of a simple structure, a simple tracking algorithm and power saving; the signal-to-noise ratio of the communication system can be increased; and a communication coverage range can be enlarged.

Description

一种基于方向固定的方向性天线的毫米波通信系统A millimeter wave communication system based on a directional antenna with a fixed direction 技术领域Technical field
本发明属于毫米波通信技术领域，具体涉及一种基于方向固定的方向性天线的毫米波通信系统。The invention belongs to the technical field of millimeter wave communication, and in particular relates to a millimeter wave communication system based on a directional antenna with a fixed direction.
背景技术Background technique
传统的毫米波通信系统多采用天线波束成型和跟踪的方法达到寻找最强信号并保持通讯的方法，其结构一般如图1所示，其一般使用AIP(封装内置天线)天线阵列技术(例如微带天线，偶极子天线)，发射信号通过移向器，以不同的相位达到天线，这样不同相位的发射信号在空中的某个或某些方向上获得增强或消弱的效果，在多信号合成增强的角度上形成波束，形成天线增益，将能量汇聚在这个方向。接收通路工作时，机理类似。Traditional millimeter wave communication systems mostly use antenna beamforming and tracking methods to find the strongest signal and maintain communication. Its structure is generally shown in Figure 1. It generally uses AIP (packaged built-in antenna) antenna array technology (such as micro With antenna, dipole antenna), the transmitted signal passes through the shifter and reaches the antenna with different phases, so that the transmitted signal of different phases can be enhanced or weakened in a certain or certain directions in the air. In multi-signal The beam is formed at the angle of synthesis enhancement to form the antenna gain, and the energy is concentrated in this direction. When the receiving channel works, the mechanism is similar.
但是这种传统的天线阵列方法要求多路毫米波电路同时工作，因其采用功率分配器和数控移相器，电路加工成本高，各个通道之间的幅度相位较准也非常复杂，其功耗也较大。另外，波束赋形算法也比较复杂。总之，传统的依靠天线阵列来完成波束成型与跟踪的方法，存在功耗较大，电路复杂，校准复杂，算法复杂的缺点。However, this traditional antenna array method requires multiple millimeter wave circuits to work at the same time. Because it uses a power divider and a numerically controlled phase shifter, the circuit processing cost is high, and the amplitude and phase alignment between each channel is also very complicated, and its power consumption Also larger. In addition, the beamforming algorithm is also more complicated. In short, the traditional method of relying on antenna arrays to complete beamforming and tracking has the disadvantages of high power consumption, complex circuits, complex calibration, and complex algorithms.
同时，一般的AiP(封装内置天线)的方法，这种方法不利于集成商(例如手机集成商)灵活设计。例如，双面屏设计，金属边框设计中毫米波天线的设计问题就比较难以解决。如果天线是基于屏幕的设计，传统相控阵列方式由于线路密度较高很难实现高透光，薄空间下的移相阵列，此外AiP天线位于手机内部，外壳的损耗和形状不一致性也会影响天线性能。At the same time, the general AiP (packaged built-in antenna) method is not conducive to the flexible design of integrators (such as mobile phone integrators). For example, the design problem of the millimeter wave antenna in the double-sided screen design and metal frame design is more difficult to solve. If the antenna is a screen-based design, the traditional phased array method is difficult to achieve high light transmission and phase shifting arrays in thin spaces due to the high line density. In addition, the AiP antenna is located inside the mobile phone, and the loss and shape inconsistency of the housing will also affect Antenna performance.
发明内容Summary of the invention
为了克服上述技术缺陷，本发明提供一种基于方向固定的方向性天线的毫米波通信系统，其具有结构简单，跟踪算法简便及省电的特性且可以轻松实现同时接收多个方向的信号并合成的性能，可用于提高通信系统信噪比，增加通信覆盖范围。In order to overcome the above technical defects, the present invention provides a millimeter wave communication system based on a directional antenna with a fixed direction, which has the characteristics of simple structure, simple tracking algorithm and power saving, and can easily receive and synthesize signals from multiple directions at the same time. The performance can be used to improve the signal-to-noise ratio of the communication system and increase the communication coverage.
为了解决上述问题，本发明按以下技术方案予以实现的：In order to solve the above problems, the present invention is implemented according to the following technical solutions:
一种基于方向固定的方向性天线的毫米波通信系统，包括：A millimeter wave communication system based on a directional antenna with a fixed direction, including:
用于产生发射天线信号的发射机，其输出端连接至多个天线；每一所述天线与所述发射机的输出端的连接通路上设置有一开关；A transmitter for generating a transmitting antenna signal, the output end of which is connected to a plurality of antennas; a switch is provided on the connection path between each of the antennas and the output end of the transmitter;
用于接收天线信号的接收机，其输入端连接至多个所述开关以连接至所述多个天线；A receiver for receiving antenna signals, the input end of which is connected to the plurality of switches to be connected to the plurality of antennas;
所述多个天线包括多个方向固定的方向性天线，所述多个方向固定的方向性天线被设置为固定朝向多个不同的方向，具体的，考虑到人手的遮挡效应，应设置有部分天线的方向对部分方向进行重复覆盖。The multiple antennas include multiple directional antennas with fixed directions, and the multiple directional antennas with fixed directions are set to be fixedly facing in multiple different directions. Specifically, considering the shielding effect of human hands, some parts should be provided. The direction of the antenna repeatedly covers part of the direction.
相对于现有技术，本发明的有益效果为：Compared with the prior art, the beneficial effects of the present invention are:
本发明公开的一种基于方向固定的方向性天线的毫米波通信系统，其不包括天线与开关的部分仅具备单一通路，无移相器，无需传统相控阵天线校准，具有结构简单，跟踪算法简便及省电的特性，并且，增加通路后，可以轻松实现同时接收多个方向的信号并合成的技术效果，可以提高通信系统信噪比和增加通信覆盖范围。The invention discloses a millimeter wave communication system based on a directional antenna with a fixed direction. The part that does not include an antenna and a switch has only a single path, no phase shifter, and does not require traditional phased array antenna calibration. It has a simple structure and tracking The algorithm is simple and power-saving, and with the addition of channels, the technical effect of simultaneous reception and synthesis of signals from multiple directions can be easily achieved, which can improve the signal-to-noise ratio of the communication system and increase the communication coverage.
作为本发明的进一步改进，所述发射机为超外差结构或直接变频结构，所述接收机为超外差结构或直接变频结构。As a further improvement of the present invention, the transmitter has a superheterodyne structure or a direct frequency conversion structure, and the receiver has a superheterodyne structure or a direct frequency conversion structure.
作为本发明的进一步改进，所述发射机包括：As a further improvement of the present invention, the transmitter includes:
用于输出中频信号的上变频器，其输出端连接至第一混频器的输入端；An up-converter for outputting intermediate frequency signals, the output terminal of which is connected to the input terminal of the first mixer;
用于输出发射本振信号的发射本振，其输出端连接至所述第一混频器的输入端；A transmission local oscillator for outputting a transmission local oscillator signal, the output terminal of which is connected to the input terminal of the first mixer;
所述第一混频器，其输出端连接至所述功率放大器的输入端；The output end of the first mixer is connected to the input end of the power amplifier;
所述功率放大器，其输出端连接至多个所述开关以连接至所述多个天线；The output end of the power amplifier is connected to the plurality of switches to be connected to the plurality of antennas;
所述接收机包括：The receiver includes:
用于接收天线信号的低噪声放大器，其输入端连接至多个所述开关以连接至所述多个天线；A low noise amplifier for receiving antenna signals, the input end of which is connected to the plurality of switches to be connected to the plurality of antennas;
第二混频器，其输入端连接至所述低噪声放大器的输出端；A second mixer, the input terminal of which is connected to the output terminal of the low noise amplifier;
用于输出接收本振信号的接收本振，其输出端连接至所述第二混频器的输入端；A receiving local oscillator for outputting a receiving local oscillator signal, the output terminal of which is connected to the input terminal of the second mixer;
下变频器，其输入端连接至所述第二混频器的输出端。The down-converter has its input terminal connected to the output terminal of the second mixer.
作为本发明的进一步改进，本系统还包括一双工器；As a further improvement of the present invention, the system also includes a duplexer;
所述功率放大器和所述低噪声放大器与所述天线的所述开关之间的连接通路均通过所述双工器。The connection paths between the power amplifier and the low noise amplifier and the switch of the antenna all pass through the duplexer.
作为本发明的进一步改进，本系统还包括一功率分配器和一功率合成器；As a further improvement of the present invention, the system also includes a power divider and a power combiner;
所述第一混频器的输出端连接至所述功率分配器的输入端，所述功率分配器的输出端通过多条发射通路连接至多个所述开关以连接至所述多个天线；每一所述发射通路上设置有移相器和功率放大器；The output end of the first mixer is connected to the input end of the power divider, and the output end of the power divider is connected to the plurality of switches through a plurality of transmission paths to connect to the plurality of antennas; each 1. A phase shifter and a power amplifier are provided on the transmission path;
所述第二混频器的输入端连接至所述功率合成器的输出端，所述功率合成器的输入端通过多条接收通路连接至多个所述开关以连接至所述多个天线；每一所述接收通路上设置有移 相器和低噪声放大器。The input end of the second mixer is connected to the output end of the power combiner, and the input end of the power combiner is connected to the plurality of switches through a plurality of receiving paths to be connected to the plurality of antennas; each A phase shifter and a low noise amplifier are arranged on the receiving path.
作为本发明的进一步改进，所述方向固定的方向性天线为喇叭天线、渐变开槽天线、对拓天线、微带天线阵列、缝隙天线阵列或偶极子天线阵列或其他方向固定的天线阵。As a further improvement of the present invention, the directional antenna with a fixed direction is a horn antenna, a tapered slot antenna, an extension antenna, a microstrip antenna array, a slot antenna array or a dipole antenna array or other antenna arrays with a fixed direction.
作为本发明的进一步改进，所述多个天线还包括相控阵天线和弱方向性天线中的一种或两种。As a further improvement of the present invention, the multiple antennas further include one or two of a phased array antenna and a weakly directional antenna.
作为本发明的进一步改进，所述发射本振与所述第一混频器间设置有倍频器，所述接收本振和所述第二混频器间设置有倍频器。As a further improvement of the present invention, a frequency multiplier is arranged between the transmitting local oscillator and the first mixer, and a frequency multiplier is arranged between the receiving local oscillator and the second mixer.
作为本发明的进一步改进，所述多个天线设置在多个射频前端，所述多个射频前端通过多级开关连接至所述接收机。As a further improvement of the present invention, the plurality of antennas are arranged in a plurality of radio frequency front ends, and the plurality of radio frequency front ends are connected to the receiver through a multi-stage switch.
作为本发明的进一步改进，所述方向固定的方向性天线为利用左手材料增强方向性的天线As a further improvement of the present invention, the directional antenna with a fixed direction is an antenna that uses left-hand material to enhance directivity
附图说明Description of the drawings
图1是本发明的背景技术中所述的传统的毫米波通信系统的结构示意图；Fig. 1 is a schematic structural diagram of a conventional millimeter wave communication system described in the background art of the present invention;
图2是本发明具体实施方式中所述的基于方向固定的方向性天线的毫米波通信系统的结构示意图；2 is a schematic structural diagram of a millimeter wave communication system based on a directional antenna with a fixed direction in the specific embodiment of the present invention;
图3是本发明具体实施方式中所述的发射机和接收机的具体结构示意图；FIG. 3 is a schematic diagram of the specific structure of the transmitter and the receiver described in the specific embodiment of the present invention;
图4是本发明具体实施方式中所述的进一步改进的毫米波通信系统的结构示意图；4 is a schematic structural diagram of a further improved millimeter wave communication system described in the specific embodiment of the present invention;
图5是本发明具体实施方式中所述的进一步改进的毫米波通信系统的两个方向上的信号同时接收的示意图。FIG. 5 is a schematic diagram of the further improved millimeter wave communication system described in the specific embodiment of the present invention for simultaneous reception of signals in two directions.
具体实施方式detailed description
以下结合附图对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.
如图2所示，本具体实施方式公开了一种基于方向固定的方向性天线的毫米波通信系统，包括发射机、接收机和多个天线。具体的，用于产生发射天线信号的发射机的输出端连接至多个天线；每一天线与发射机的输出端的连接通路上设置有一开关。具体的，用于接收天线信号的接收机的输入端连接至多个开关以连接至多个天线。具体的，多个天线包括多个方向固定的方向性天线，多个方向固定的方向性天线被设置为固定朝向多个不同的方向。As shown in FIG. 2, this specific embodiment discloses a millimeter wave communication system based on a directional antenna with a fixed direction, including a transmitter, a receiver, and multiple antennas. Specifically, the output end of the transmitter for generating the transmission antenna signal is connected to multiple antennas; a switch is provided on the connection path between each antenna and the output end of the transmitter. Specifically, the input terminal of the receiver for receiving antenna signals is connected to multiple switches to be connected to multiple antennas. Specifically, the multiple antennas include multiple directional antennas with fixed directions, and the multiple directional antennas with fixed directions are set to be fixed to a plurality of different directions.
通过上述公开的系统，其仅具备单一通路，无移相器，无需传统的相控阵校准，具有结构简单，跟踪算法简便及省电的特性，增加通路后，可以提高通信系统信噪比和增加通信覆 盖范围。Through the above disclosed system, it only has a single channel, no phase shifter, and does not require traditional phased array calibration. It has the characteristics of simple structure, simple tracking algorithm and power saving. After adding channels, it can improve the signal-to-noise ratio of the communication system. Increase communication coverage.
具体的，本实施例中所述的发射机可以采用超外差结构，也可以采用直接变频结构，同理，接收机可以采用超外差结构或直接变频结构，本领域技术人员可以根据实际的需求进行选择，不管采用哪一种结构，均应被视作包括在本申请的保护范围之中。Specifically, the transmitter described in this embodiment can adopt a superheterodyne structure or a direct frequency conversion structure. Similarly, the receiver can adopt a superheterodyne structure or a direct frequency conversion structure. Those skilled in the art can use a superheterodyne structure or a direct frequency conversion structure. Need to choose, no matter which structure is adopted, it should be regarded as included in the scope of protection of this application.
下面结合图3对本实施例中的毫米波通信系统在采用超外差结构时的具体电路构成进行进一步的阐述，如图3所示，发射机包括上变频器、发射本振、第一混频器和功率放大器，接收机包括低噪声放大器、第二混频器、接收本振和下变频器。The specific circuit configuration of the millimeter wave communication system in this embodiment when the superheterodyne structure is adopted is further described below in conjunction with FIG. 3. As shown in FIG. 3, the transmitter includes an up-converter, a transmitting local oscillator, and a first mixer. The receiver includes a low-noise amplifier, a second mixer, a receiving local oscillator and a down-converter.
具体的，发射机中，上变频器的输出端和发射本振的输出端均连接至第一混频器的输入端，发射本振与第一混频器间设置有倍频器，第一混频器的输出端连接至功率放大器的输入端，功率放大器的输出端通过双工器连接至多个所述开关以连接至所述多个天线；通过这样设置的发射机，欲发射的基带IQ信号首先通过上变频器上变频到中频上成为中频信号，中频信号进入第一混频器，与发射本振输出的发射本振信号在第一混频器中进行混频产生所要发射的毫米波已调信号，毫米波已调信号通过功率放大器进行放大后传输到双工器，到达双工器的发射信号通过开关组传到效果最好的一根方向固定的方向性天线。Specifically, in the transmitter, the output terminal of the up-converter and the output terminal of the transmitting local oscillator are both connected to the input terminal of the first mixer. A frequency multiplier is provided between the transmitting local oscillator and the first mixer. The output end of the mixer is connected to the input end of the power amplifier, and the output end of the power amplifier is connected to the plurality of switches through the duplexer to be connected to the plurality of antennas; through the transmitter set in this way, the baseband IQ to be transmitted The signal is first upconverted to an intermediate frequency by an up-converter to become an intermediate frequency signal. The intermediate frequency signal enters the first mixer, and is mixed with the transmitted local oscillator output by the transmitting local oscillator in the first mixer to produce the millimeter wave to be transmitted. The modulated signal, millimeter wave modulated signal is amplified by the power amplifier and then transmitted to the duplexer, and the transmitted signal that reaches the duplexer is transmitted to the best-effect directional antenna with fixed direction through the switch group.
具体的，接收机中，用于接收天线信号的低噪声放大器的输入端通过双工器以连接至多个开关以连接至多个天线，第二混频器的输入端连接至低噪声放大器的输出端，用于输出接收本振信号的接收本振的输出端连接至第二混频器的输入端，接收本振和第二混频器间设置有倍频器，第二混频器的输出端连接至下变频器的输入端。通过这样设置的接收机，低噪声放大器将通过双工器接收到的天线信号首先进行放大，并传输至第二混频器，与接收本振输出的接收本振信号在第二混频器中进行混频产生接收中频信号，接收中频信号通过下变频器进行变频和解调。Specifically, in the receiver, the input end of the low-noise amplifier for receiving antenna signals is connected to a plurality of switches to connect to the multiple antennas through a duplexer, and the input end of the second mixer is connected to the output end of the low-noise amplifier , The output terminal of the receiving local oscillator for outputting the received local oscillator signal is connected to the input terminal of the second mixer, a frequency multiplier is arranged between the receiving local oscillator and the second mixer, and the output terminal of the second mixer Connect to the input terminal of the down converter. Through the receiver set up in this way, the low-noise amplifier first amplifies the antenna signal received through the duplexer and transmits it to the second mixer, and the received local oscillator signal output by the receiving local oscillator in the second mixer The frequency mixing is performed to generate a received intermediate frequency signal, and the received intermediate frequency signal is converted and demodulated through a down-converter.
需要注意的是，本发明不仅适合频分双工FDD，也适合时分双工TDD，即适合带双工器的场景，也适合不带双工器的场景，例如时分双工TDD的条件下可以不使用双工器，或通过天线阵列隔离获得了比较好的收发隔离效果的情况下可以让低噪声放大器和功率放大器直接与天线的开关连接，而不设置双工器。It should be noted that the present invention is not only suitable for frequency division duplex FDD, but also suitable for time division duplex TDD, that is, it is suitable for scenarios with and without duplexers, for example, under the conditions of time division duplex TDD. If a duplexer is not used, or if a better transceiver isolation effect is obtained through antenna array isolation, the low-noise amplifier and power amplifier can be directly connected to the antenna switch without a duplexer.
具体的，本发明的进一步改进在于，本系统还包括一功率分配器和一功率合成器；第一混频器的输出端连接至功率分配器的输入端，功率分配器的输出端通过多条发射通路连接至多个开关以连接至多个天线；每一发射通路上设置有移相器和功率放大器；第二混频器的输入端连接至功率合成器的输出端，功率合成器的输入端通过多条接收通路连接至多个开关以连接至多个天线；每一接收通路上设置有移相器和低噪声放大器。Specifically, a further improvement of the present invention is that the system also includes a power divider and a power combiner; the output end of the first mixer is connected to the input end of the power divider, and the output end of the power divider passes through a plurality of The transmission path is connected to multiple switches to connect to multiple antennas; each transmission path is provided with a phase shifter and a power amplifier; the input of the second mixer is connected to the output of the power combiner, and the input of the power combiner passes through Multiple receiving paths are connected to multiple switches to connect to multiple antennas; each receiving path is provided with a phase shifter and a low-noise amplifier.
图4示出了本发明的上述改进的一种情况，如图4所示，功率分配器的输出端通过两条 发射通路连接至多个开关以连接至多个天线；每一发射通路上设置有移相器和功率放大器；功率合成器的输入端通过两条接收通路连接至多个开关以连接至多个天线；每一接收通路上设置有移相器和低噪声放大器。具体的，每一发射通路和一接收通路同时通过一个双工器以进行信号隔离，如前所述，通过天线阵列隔离获得了比较好的收发隔离效果的情况下可以不设置双工器。Fig. 4 shows a situation of the above-mentioned improvement of the present invention. As shown in Fig. 4, the output end of the power divider is connected to multiple switches through two transmission paths to connect to multiple antennas; each transmission path is provided with a shifter. Phaser and power amplifier; the input end of the power combiner is connected to multiple switches through two receiving paths to connect to multiple antennas; each receiving path is provided with a phase shifter and a low-noise amplifier. Specifically, each transmission path and a reception path pass through a duplexer at the same time for signal isolation. As mentioned above, if a better transmission and reception isolation effect is obtained through antenna array isolation, the duplexer may not be provided.
图4中的电路通过功率分配器和功率合成器实现了同时接受和发射两路信号的目的。这样可以实现一根天线工作，系统同时对其他天线进行扫描的功能。需要注意的是，在实现一根天线工作，系统同时对其他天线进行扫描的功能时，可以图4中的电路也可以不设置双工器。The circuit in Figure 4 achieves the purpose of receiving and transmitting two signals at the same time through a power divider and a power combiner. In this way, one antenna can work and the system can scan other antennas at the same time. It should be noted that, when one antenna works and the system scans other antennas at the same time, the circuit in Figure 4 may or may not be equipped with a duplexer.
图4中的结构的另一个好处是可以实现同时接收两个方向上的信号，如图5所示，基站天线的信号经过建筑物3和建筑物2的反射形成两个信号，并被设置有本系统的设备同时接收，同时接收信号需要进行相位合成，图4标出了移相器的位置，同样的，也可以将移相器放到后级电路，比如基带合成电路中，这样可以提高系统信噪比，增加覆盖范围。Another advantage of the structure in Figure 4 is that it can receive signals in two directions at the same time. As shown in Figure 5, the signal of the base station antenna is reflected by the building 3 and the building 2 to form two signals, and is set with The equipment of this system receives at the same time, and the received signal needs to be phase synthesized. Figure 4 shows the position of the phase shifter. Similarly, the phase shifter can also be placed in the subsequent circuit, such as the baseband synthesis circuit, which can improve The system signal-to-noise ratio increases the coverage area.
基于图4中的思路，本领域技术人员具备依次设计出更多发射通路和接受通路同时收发的结构，路数越多越有助于提高系统信噪比，增加覆盖范围。但需要平衡功耗，成本，算法复杂程度。Based on the idea in Figure 4, those skilled in the art have the ability to sequentially design more transmit channels and receive channels to receive and transmit at the same time. The more channels, the more helpful it is to improve the signal-to-noise ratio of the system and increase the coverage. But it is necessary to balance power consumption, cost, and algorithm complexity.
作为本实施例的进一步改进，本系统中的方向固定的方向性天线可以有多种选择，如口径天线中的喇叭天线，渐变开槽天线或对拓天线等单端口高增益天线，或者串行馈电微带天线或slot天线或偶极子天线，又或者是并行馈电微带天线或slot天线或偶极子天线，或者是串并结合的微带天线或slot天线或偶极子天线的阵列，或者是其他类型的方向性天线。具体的，本系统中的方向固定的方向性天线也可以为利用左手材料增强方向性的天线。更进一步的，本发明中的方案覆盖上述天线类型的单种或多种混合的情况。As a further improvement of this embodiment, the directional antenna with fixed direction in this system can have multiple choices, such as the horn antenna in the aperture antenna, the single-port high-gain antenna such as the tapered slot antenna or the extension antenna, or the serial Feeding microstrip antenna or slot antenna or dipole antenna, or parallel feeding microstrip antenna or slot antenna or dipole antenna, or a combination of series and parallel microstrip antenna or slot antenna or dipole antenna Array, or other types of directional antennas. Specifically, the directional antenna with a fixed direction in this system can also be an antenna that uses left-handed material to enhance the directivity. Furthermore, the solution in the present invention covers a single or a mixture of the above-mentioned antenna types.
作为本实施例的进一步改进，多个天线还包括相控阵天线和弱方向性天线中的一种或两种，即本系统中的多个天线覆盖方向固定的方向性天线，弱方向性天线或者相控阵列天线单独使用或混合使用的情况，在这些情况中，本系统至少要包括有一组方向固定的方向性天线。具体的，本系统中多个天线可以为低增益宽幅瓣天线和窄波束天线配合使用，可以先通过低增益天线粗寻找强信号方向，再通过窄波束天线精确定位信号方向。具体的，本系统接收天线信号时，每一根高增益天线通过开关按一定顺序(比如优先切到临近角度的天线上)轮番接到接收通路上，接收机可以根据每根方向性天线接收到的信号的大小或质量，来判断开关应该接到哪一根天线上。As a further improvement of this embodiment, the multiple antennas also include one or both of phased array antennas and weakly directional antennas, that is, multiple antennas in this system cover fixed-directional directional antennas, and weakly directional antennas. Or the phased array antenna is used alone or in combination. In these cases, the system must include at least a set of directional antennas with a fixed direction. Specifically, multiple antennas in this system can be used in conjunction with a low-gain wide-lobe antenna and a narrow-beam antenna. The low-gain antenna can be used to roughly find the direction of the strong signal, and then the narrow-beam antenna can be used to accurately locate the signal direction. Specifically, when the system receives antenna signals, each high-gain antenna is connected to the receiving path in turn through the switch in a certain order (such as preferentially cutting to the antenna at the adjacent angle), and the receiver can receive according to each directional antenna. The size or quality of the signal to determine which antenna the switch should be connected to.
更进一步的，利用方向角较宽的天线，或单元较少的相控阵天线粗略估计强信号的最佳 角度，然后再对固定角度的方向性天线进行细选以确定接收机应该接到哪一根天线上。Furthermore, use an antenna with a wider directional angle or a phased array antenna with fewer elements to roughly estimate the best angle of a strong signal, and then select a fixed-angle directional antenna to determine where the receiver should be connected. On an antenna.
作为本实施例的进一步的改进，为了满足多个方向性天线在空间上的分散性，可以在欲设置本系统的设备上设置多个射频前端，多个天线分别设置在多个射频前端上，多个射频前端通过多级开关连接至接收机。多极开关可以用于对多个射频前端中的多个方向性天线进行选择，以便于接收机对多个天线进行筛选。As a further improvement of this embodiment, in order to satisfy the spatial dispersion of multiple directional antennas, multiple radio frequency front ends can be provided on the equipment to be installed in the system, and the multiple antennas are respectively provided on the multiple radio frequency front ends. Multiple RF front ends are connected to the receiver through multi-stage switches. The multi-pole switch can be used to select multiple directional antennas in multiple radio frequency front ends, so that the receiver can screen multiple antennas.
作为本实施例的进一步的改进，为减少传输损耗，可将前端的低噪声放大器和功率放大器放到每一个天线附近，以缩短它们之间的距离。进一步的，为减小传输损耗，可以将中频信号作为长距离传输信号，并在中频信号上加开关电路进行线路选择。As a further improvement of this embodiment, in order to reduce transmission loss, the front-end low-noise amplifier and power amplifier can be placed near each antenna to shorten the distance between them. Further, in order to reduce the transmission loss, the intermediate frequency signal can be used as a long-distance transmission signal, and a switch circuit can be added to the intermediate frequency signal for line selection.
具体的，本实施例中的方向固定的天线可以有不同的极化方向，比如垂直极化和水平极化，此时为实现多进多出(MIMO)的效应，接受端可能要至少两路，发射端也要至少两路，分别用于不同的极化方向信号的接收。Specifically, the antenna with a fixed direction in this embodiment can have different polarization directions, such as vertical polarization and horizontal polarization. At this time, in order to achieve the effect of multiple input multiple output (MIMO), the receiving end may have at least two channels. , The transmitting end should also have at least two channels, which are used to receive signals in different polarization directions.
本实施例中公开的毫米波通信系统，其适用于：笔记本电脑，机器人，监控器，摄像头，嵌入式计算机，平板电脑，手机，媒体播放器，投影仪，摄像机，电影拍摄机，或其他便携设备，腕带，腕表，耳机，智能眼镜，运动摄像，或其他能穿戴的电子产品，电视，显示屏，导航设备，汽车车载设备(传感器，通信，雷达，车联网)，物联网通信电路，基站天线系统，游戏机，AR，VR等电子设备。本实施例中的毫米波通信系统，其通过简单的开关实现波束成形与波束跟踪，一方面降低了功耗又节省了电路校准的复杂工作和电路，另一方面非常适合设备设计者根据不同的具体外观需求灵活进行设备设计，此外，采用多通道设计可以获得更高的信噪比和覆盖范围。The millimeter wave communication system disclosed in this embodiment is suitable for: notebook computers, robots, monitors, cameras, embedded computers, tablet computers, mobile phones, media players, projectors, cameras, movie cameras, or other portable Equipment, wristbands, watches, earphones, smart glasses, sports cameras, or other wearable electronic products, TVs, displays, navigation equipment, automotive equipment (sensors, communications, radar, Internet of Vehicles), Internet of Things communication circuits , Base station antenna systems, game consoles, AR, VR and other electronic equipment. The millimeter wave communication system in this embodiment realizes beamforming and beam tracking through simple switches. On the one hand, it reduces power consumption and saves the complex work and circuits of circuit calibration. On the other hand, it is very suitable for equipment designers according to different requirements. The specific appearance requires flexible equipment design. In addition, the use of multi-channel design can achieve a higher signal-to-noise ratio and coverage.
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，故凡是未脱离本发明技术方案内容，依据本发明的技术实质对以上实施例所作的任何修改、等同变化与修饰,均仍属于本发明技术方案的范围内。The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Therefore, any modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention, Equivalent changes and modifications still fall within the scope of the technical solution of the present invention.

Claims (10)

  1. 一种基于方向固定的方向性天线的毫米波通信系统，其特征在于，包括：A millimeter wave communication system based on a directional antenna with a fixed direction, which is characterized in that it includes:
    用于产生发射天线信号的发射机，其输出端连接至多个天线；每一所述天线与所述发射机的输出端的连接通路上设置有一开关；A transmitter for generating a transmitting antenna signal, the output end of which is connected to a plurality of antennas; a switch is provided on the connection path between each of the antennas and the output end of the transmitter;
    用于接收天线信号的接收机，其输入端连接至多个所述开关以连接至所述多个天线；A receiver for receiving antenna signals, the input end of which is connected to the plurality of switches to be connected to the plurality of antennas;
    所述多个天线包括多个方向固定的方向性天线，所述多个方向固定的方向性天线被设置为固定朝向多个不同的方向。The plurality of antennas include a plurality of directional antennas with fixed directions, and the plurality of directional antennas with fixed directions are arranged to be fixedly oriented in a plurality of different directions.
  2. 根据权利要求1所述基于方向固定的方向性天线的毫米波通信系统，其特征在于，所述发射机为超外差结构或直接变频结构，所述接收机为超外差结构或直接变频结构。The millimeter wave communication system based on a directional antenna with a fixed direction according to claim 1, wherein the transmitter is a superheterodyne structure or a direct frequency conversion structure, and the receiver is a superheterodyne structure or a direct frequency conversion structure .
  3. 根据权利要求1所述的基于方向固定的方向性天线的毫米波通信系统，其特征在于，所述发射机包括：The millimeter wave communication system based on a directional antenna with a fixed direction according to claim 1, wherein the transmitter comprises:
    用于输出中频信号的上变频器，其输出端连接至第一混频器的输入端；An up-converter for outputting intermediate frequency signals, the output terminal of which is connected to the input terminal of the first mixer;
    用于输出发射本振信号的发射本振，其输出端连接至所述第一混频器的输入端；A transmission local oscillator for outputting a transmission local oscillator signal, the output terminal of which is connected to the input terminal of the first mixer;
    所述第一混频器，其输出端连接至所述功率放大器的输入端；The output end of the first mixer is connected to the input end of the power amplifier;
    所述功率放大器，其输出端连接至多个所述开关以连接至所述多个天线；The output end of the power amplifier is connected to the plurality of switches to be connected to the plurality of antennas;
    所述接收机包括：The receiver includes:
    用于接收天线信号的低噪声放大器，其输入端连接至多个所述开关以连接至所述多个天线；A low noise amplifier for receiving antenna signals, the input end of which is connected to the plurality of switches to be connected to the plurality of antennas;
    第二混频器，其输入端连接至所述低噪声放大器的输出端；A second mixer, the input terminal of which is connected to the output terminal of the low noise amplifier;
    用于输出接收本振信号的接收本振，其输出端连接至所述第二混频器的输入端；A receiving local oscillator for outputting a receiving local oscillator signal, the output terminal of which is connected to the input terminal of the second mixer;
    下变频器，其输入端连接至所述第二混频器的输出端。The down-converter has its input terminal connected to the output terminal of the second mixer.
  4. 根据权利要求3所述的基于方向固定的方向性天线的毫米波通信系统，其特征在于，还包括一双工器；The millimeter wave communication system based on a directional antenna with a fixed direction according to claim 3, further comprising a duplexer;
    所述功率放大器和所述低噪声放大器与所述天线的所述开关之间的连接通路均通过所述双工器。The connection paths between the power amplifier and the low noise amplifier and the switch of the antenna all pass through the duplexer.
  5. 根据权利要求3所述的基于方向固定的方向性天线的毫米波通信系统，其特征在于，还包括一功率分配器和一功率合成器；The millimeter wave communication system based on a directional antenna with a fixed direction according to claim 3, further comprising a power divider and a power combiner;
    所述第一混频器的输出端连接至所述功率分配器的输入端，所述功率分配器的输出端通过多条发射通路连接至多个所述开关以连接至所述多个天线；每一所述发射通路上设置有移相器和功率放大器；The output end of the first mixer is connected to the input end of the power divider, and the output end of the power divider is connected to the plurality of switches through a plurality of transmission paths to connect to the plurality of antennas; each 1. A phase shifter and a power amplifier are provided on the transmission path;
    所述第二混频器的输入端连接至所述功率合成器的输出端，所述功率合成器的输入端通过多条接收通路连接至多个所述开关以连接至所述多个天线；每一所述接收通路上设置有移相器和低噪声放大器。The input end of the second mixer is connected to the output end of the power combiner, and the input end of the power combiner is connected to the plurality of switches through a plurality of receiving paths to connect to the plurality of antennas; each A phase shifter and a low noise amplifier are arranged on the receiving path.
  6. 根据权利要求1所述的基于方向固定的方向性天线的毫米波通信系统，其特征在于，所述方向固定的方向性天线为喇叭天线、渐变开槽天线、对拓天线、缝隙天线阵、微带天线阵或偶极子天线阵。The millimeter wave communication system based on a directional antenna with a fixed direction according to claim 1, wherein the directional antenna with a fixed direction is a horn antenna, a tapered slot antenna, an extension antenna, a slot antenna array, and a micro With antenna array or dipole antenna array.
  7. 根据权利要求1所述的基于方向固定的方向性天线的毫米波通信系统，其特征在于，所述多个天线还包括相控阵天线和弱方向性天线中的一种或两种。The millimeter wave communication system based on a fixed directional antenna according to claim 1, wherein the multiple antennas further include one or two of a phased array antenna and a weak directional antenna.
  8. 根据权利要求7所述的基于方向固定的方向性天线的毫米波通信系统，其特征在于，所述发射本振与所述第一混频器间设置有倍频器，所述接收本振和所述第二混频器间设置有倍频器。The millimeter wave communication system based on a directional antenna with a fixed direction according to claim 7, wherein a frequency multiplier is provided between the transmitting local oscillator and the first mixer, and the receiving local oscillator and A frequency multiplier is arranged between the second mixers.
  9. 根据权利要求1所述的基于方向固定的方向性天线的毫米波通信系统，其特征在于，所述多个天线设置在多个射频前端，所述多个射频前端通过多级开关连接至所述接收机。The millimeter wave communication system based on a directional antenna with a fixed direction according to claim 1, wherein the plurality of antennas are arranged in a plurality of radio frequency front ends, and the plurality of radio frequency front ends are connected to the Receiver.
  10. 根据权利要求1所述的基于方向固定的方向性天线的毫米波通信系统，其特征在于，所述方向固定的方向性天线为利用左手材料增强方向性的天线。The millimeter wave communication system based on a fixed-directional directional antenna according to claim 1, wherein the fixed-directional directional antenna is an antenna that uses a left-handed material to enhance directivity.
PCT/CN2019/112235 2019-09-24 2019-10-21 Millimeter-wave communication system based on directional antennas facing fixed directions WO2021056642A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910904380.4 2019-09-24
CN201910904380.4A CN110535488A (en) 2019-09-24 2019-09-24 A kind of millimeter-wave communication system of the directive antenna fixed based on direction

Publications (1)

Publication Number Publication Date
WO2021056642A1 true WO2021056642A1 (en) 2021-04-01

Family

ID=68669982

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/112235 WO2021056642A1 (en) 2019-09-24 2019-10-21 Millimeter-wave communication system based on directional antennas facing fixed directions

Country Status (2)

Country Link
CN (1) CN110535488A (en)
WO (1) WO2021056642A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111313153A (en) * 2020-02-28 2020-06-19 维沃移动通信有限公司 Antenna unit, antenna and electronic equipment
CN112152656B (en) * 2020-08-21 2021-12-14 浙江卓盛科技有限公司 Intelligent antenna system
CN113268140A (en) * 2021-05-06 2021-08-17 青岛小鸟看看科技有限公司 Virtual reality equipment and virtual reality system
CN114628919B (en) * 2022-03-11 2023-08-29 上海旷通科技有限公司 5G active antenna assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1783713A (en) * 2004-12-03 2006-06-07 南京理工大学 Microwave millmeter wave broad band three decibel orthogonal digital phase shifter
CN102857280A (en) * 2012-07-24 2013-01-02 电子科技大学 Four-dimensional antenna array based secret communication system and method thereof
CN103235303A (en) * 2013-04-22 2013-08-07 常州工学院 Millimeter wave radar sensor for circumference intrusion prevention system
CN103986488A (en) * 2014-05-06 2014-08-13 东南大学 Broadband radio frequency receiver of high-performance LTE channel simulator
CN104409806A (en) * 2014-09-13 2015-03-11 南京理工大学 Mini active microwave and millimeter wave self-loading I/Q variable phase reversal orthogonal filter
US20180323834A1 (en) * 2017-05-02 2018-11-08 Apple Inc. Methods for Performing Antenna Beam Scanning
US10419074B1 (en) * 2018-05-16 2019-09-17 At&T Intellectual Property I, L.P. Method and apparatus for communications using electromagnetic waves and an insulator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8441410B2 (en) * 2007-07-24 2013-05-14 Thomson Licensing Multi-antenna system feed device and wireless link terminal equipped with such a device
CN101609931B (en) * 2008-06-20 2012-12-05 电子科技大学 Antenna array phase control technology based on time modulation and system realizing method thereof
CN107425874B (en) * 2017-07-06 2019-01-08 中国人民解放军火箭军研究院 Integration data chain dual-mode antenna array is interfered in communication reconnaissance
CN109273845B (en) * 2018-10-16 2020-10-09 东莞华贝电子科技有限公司 Directional antenna, terminal based on multi-antenna design and method for reducing power consumption
CN210327566U (en) * 2019-09-24 2020-04-14 安捷利（番禺）电子实业有限公司 Millimeter wave communication system based on directional antenna with fixed direction

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1783713A (en) * 2004-12-03 2006-06-07 南京理工大学 Microwave millmeter wave broad band three decibel orthogonal digital phase shifter
CN102857280A (en) * 2012-07-24 2013-01-02 电子科技大学 Four-dimensional antenna array based secret communication system and method thereof
CN103235303A (en) * 2013-04-22 2013-08-07 常州工学院 Millimeter wave radar sensor for circumference intrusion prevention system
CN103986488A (en) * 2014-05-06 2014-08-13 东南大学 Broadband radio frequency receiver of high-performance LTE channel simulator
CN104409806A (en) * 2014-09-13 2015-03-11 南京理工大学 Mini active microwave and millimeter wave self-loading I/Q variable phase reversal orthogonal filter
US20180323834A1 (en) * 2017-05-02 2018-11-08 Apple Inc. Methods for Performing Antenna Beam Scanning
US10419074B1 (en) * 2018-05-16 2019-09-17 At&T Intellectual Property I, L.P. Method and apparatus for communications using electromagnetic waves and an insulator

Also Published As

Publication number Publication date
CN110535488A (en) 2019-12-03

Similar Documents

Publication Publication Date Title
WO2021056642A1 (en) Millimeter-wave communication system based on directional antennas facing fixed directions
US20200350698A1 (en) Wireless Transceiver Having Receive Antennas and Transmit Antennas with Orthogonal Polarizations in a Phased Array Antenna Panel
US10971815B1 (en) Element level polarization synthesis network for electronically scanned arrays
US9444140B2 (en) Multi-element antenna beam forming configurations for millimeter wave systems
KR100813909B1 (en) automotive radar dualmode system with wireless communication
US20110032159A1 (en) Antenna Apparatus with Adaptive Polarization Switching Function
US9602268B2 (en) Full-duplex communication apparatus and method
US20180069604A1 (en) Transceiver for Concurrently Transmitting and Receiving Wireless Signals
US9026040B2 (en) Tracking system with orthogonal polarizations and a retro-directive array
US11641228B2 (en) Flexible beamforming architecture
CN210327566U (en) Millimeter wave communication system based on directional antenna with fixed direction
US20210218482A1 (en) Apparatus And Method For Correcting Deviation Between Plurality Of Transmission Channels
US20240055765A1 (en) Circularly-polarized antennas with wide scanning ranges
JP2012191281A (en) Radio communication device
CN109768381A (en) A kind of the millimeter wave digital multiple beam array device and implementation method of mobile terminal
JP7319378B2 (en) dual-polarized millimeter-wave front-end integrated circuit
CN111509405B (en) Antenna module and electronic equipment
TWI806456B (en) Signal receiving apparatus and operation method thereof having phase compensation mechanism
CN209374679U (en) A kind of millimeter wave digital multiple beam array device of mobile terminal
Chen et al. Design of A V-band Phased Array System
Ho et al. Unlicensed 60-GHz millimeter wave for multi-gigabit wireless communications
CN110703243A (en) Novel silicon-based terahertz active array imaging technology based on regenerative reception principle
Celik et al. Design and Implementation of Advanced Wireless Communication Systems Utilizing the Hybrid Smart-Antenna Algorithm

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19946935

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19946935

Country of ref document: EP

Kind code of ref document: A1