CN112152682B - MIMO communication device for realizing double/multi-channel binding communication by using two-path antenna - Google Patents
MIMO communication device for realizing double/multi-channel binding communication by using two-path antenna Download PDFInfo
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- CN112152682B CN112152682B CN202010811861.3A CN202010811861A CN112152682B CN 112152682 B CN112152682 B CN 112152682B CN 202010811861 A CN202010811861 A CN 202010811861A CN 112152682 B CN112152682 B CN 112152682B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0426—Power distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
Abstract
The invention discloses an MIMO communication device for realizing double/multi-channel binding communication by using two-way antennas, which comprises a first antenna, a second antenna, a first power divider, a second power divider, a communication module, a shunt/combiner and a processor, wherein the first antenna is connected with the first power divider; the output port of the first power divider and the output port of the second power divider are sequentially connected with the communication module, the branching/combining device and the processor, the public port of the first power divider is connected with the first antenna, and the public port of the second power divider is connected with the second antenna. The dual/multi-path bundled communication is realized through two antennas, the number of the antennas is reduced, the size requirement on terminal equipment is reduced, two-path bundled communication and an MIMO communication technology are supported, broadband communication can be realized, the gain loss of a power divider can be made up by utilizing a space diversity technology in the MIMO communication technology, the use flexibility of corresponding communication equipment is improved, and the cost of a corresponding communication scheme is reduced.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an MIMO communication device for realizing double/multi-channel bundled communication by using two paths of antennas.
Background
Currently, 4G (fourth generation mobile communication technology) communication is widespread, and 5G (fifth generation mobile communication technology) wireless communication technology is rapidly developing and commercialized. The 5G commercialization original year is opened in 2019, the mark is that the 5G and 4G coexistence era is already in progress, and the 5G and 4G coexistence situation also lasts for decades. 5G will influence various industries, and will bring huge new business opportunities and new mode.
One of the important features of the 5G communication technology is the MIMO (multiple input multiple output) communication technology. The MIMO communication technology is a broadband data communication technology for establishing multiple spatial streams, and the receiving and transmitting end simultaneously uses multiple antennas, i.e. MIMO antennas, such as 2x2/2T2R, 4x4//4T4R, … … 64x 64/passive MIMO, … …, and establishes multiple spatial (electromagnetic wave) streams for receiving and transmitting by using MIMO antenna technology, beam forming, MIMO antenna diversity and multiplexing technology, thereby implementing broadband data communication.
The binding communication is a broadband data communication technology which is based on a wireless network, uses a plurality of same wireless modules by equipment, simultaneously establishes a plurality of wireless links, and applies a link layer multiplexing binding multiplexing technology to realize data concurrent transmission and reception, and is used for increasing the data broadband communication capability.
The traditional MIMO communication equipment has a large number of antennas, for example, 2-path communication needs 4 antennas, 4-path communication needs 8 antennas, and so on; therefore, the equipment has larger size requirement, and easily causes the problems of high cost and inconvenient use.
Disclosure of Invention
In view of the above problems, the present invention provides a MIMO communication apparatus for implementing dual/multi-path bundled communication using two antennas.
In order to achieve the object of the present invention, a MIMO communication apparatus for implementing dual/multi-path bundled communication using two antennas is provided, which includes a first antenna, a second antenna, a first power divider, a second power divider, a communication module, a splitter/combiner, and a processor;
the output port of the first power divider and the output port of the second power divider are sequentially connected with the communication module, the branching/combining device and the processor, the public port of the first power divider is connected with the first antenna, and the public port of the second power divider is connected with the second antenna.
In one embodiment, the first power splitter and the second power splitter each include 2 output ports, the communication module includes a first communication module and a second communication module, each communication module includes a first antenna port and a second antenna port;
a first antenna port of the ith communication module is connected with an ith output port of the first power divider, a second antenna port of the ith communication module is connected with an ith output port of the second power divider, and each communication module is respectively connected with the processor through the branching/combining device; i takes the value 1 or 2.
Specifically, the first antenna receives a signal transmitted by a base station to obtain a first signal, and feeds the first signal into a common port of a first power divider, and the first power divider equally divides the first signal into 2 paths of signals and outputs the signals to each output port; the second antenna receives a signal transmitted by the base station to obtain a second signal, the second signal is fed into a common port of a second power divider, and the second power divider equally divides the second signal into 2 paths of signals and outputs the signals to each output port; each communication module receives signals respectively sent by the first power divider and the second power divider to obtain 2-path antenna signals, demodulates the 2-path antenna signals into baseband data streams, and transmits the baseband data streams to the branching/combining device; the branching/combining device collects the baseband data streams to obtain a combined data stream, and sends the combined data stream to the processor.
Specifically, the processor generates IP data to be transmitted and sends the IP data to the branching/combining device; the shunt/combiner shunts the IP data into 2 paths of sub-IP data flows, and transmits the 2 paths of sub-IP data flows to each communication module; each communication module modulates the received sub-IP data stream to obtain 2 paths of uplink signals; a first antenna port of the first communication module sends one path of uplink signals to a first power divider, and a second antenna port of the first communication module sends the other path of uplink signals to a second power divider; a first antenna port of a second communication module sends one path of uplink signals to a first power divider, and a second antenna port of the second communication module sends the other path of uplink signals to a second power divider; the first power divider combines the received 2-path uplink signals to obtain a first combined signal, and a first antenna connected with a public port transmits the first combined signal; the second power divider combines the received 2-path uplink signals to obtain a second combined signal, and the second combined signal is transmitted through a second antenna connected with the public port.
In one embodiment, the operating frequency ranges of the first power divider and the second power divider are both 1710MHz to 6000 MHz.
In one embodiment, the reflection coefficient of each port in the first and second power dividers is less than-15 db.
In one embodiment, the isolation between the output ports in the first and second power splitters is less than-20 db.
In the MIMO communication device for realizing the dual/multi-path bundled communication by the two antennas, the output port of the first power divider and the output port of the second power divider are sequentially connected with the communication module, the splitter/combiner and the processor, the public port of the first power divider is connected with the first antenna, and the public port of the second power divider is connected with the second antenna, so that the dual/multi-path bundled communication is realized by the two antennas, the number of the antennas is reduced, the size requirement on terminal equipment is reduced, the two-path bundled communication and the MIMO communication technology are supported, the broadband communication can be realized, the gain loss of the power divider can be compensated by utilizing the space diversity technology in the MIMO communication technology, the use flexibility of corresponding communication equipment is improved, and the cost of a corresponding communication scheme is reduced.
Drawings
Fig. 1 is a schematic diagram of a MIMO communication apparatus of a conventional scheme;
fig. 2 is a schematic diagram of a MIMO communication apparatus for implementing dual/multi-path bundled communication with two antennas according to an embodiment;
fig. 3 is a schematic diagram of a MIMO communication apparatus for implementing dual/multi-path bundled communication with two antennas according to another embodiment;
FIG. 4 is a diagram of a nine section Wilkinson circuit configuration of an embodiment;
FIG. 5 is a diagram of one embodiment of a PCB board for a Wilkinson power divider.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
As shown in fig. 1, a conventional two-way bundled communication terminal apparatus includes: the system comprises an application processor, a splitter/combiner, 2 communication modules and 4 antennas, and fig. 1 shows a block diagram of a 2-channel bundled communication terminal device. A typical multi-bundled communication terminal device employs two-way, or multi-bundled communication, and employs MIMO communication, and the total number of antennas used is 2 × N, that is, 2 times the number of communication modules, for example, the total number of antennas used is 4 in the two-way bundled communication. The problem is that the number of antennas is large, for example, 2-way communication, 4 antennas are needed, the antennas need to be spaced apart from each other by a certain distance to ensure the non-correlation between MIMO antennas, and the distance is calculated by λ/2(λ is wavelength) when 4G and 5G communicate, that is, the antennas are spaced apart by more than 88mm, then the 4 antennas are arranged all the time, at least 264mm is spaced apart, then the size and length of the device require at least 264mm, which requires that the corresponding communication device have a sufficiently large size, and causes great inconvenience for the use thereof.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an MIMO communication apparatus for implementing dual/multi-path bundled communication by using two antennas according to an embodiment, and includes a first antenna 11, a second antenna 12, a first power divider 13, a second power divider 14, a communication module 20, a splitter/combiner 31, and a processor 32;
the output port of the first power divider 13 and the output port of the second power divider 14 are sequentially connected to the communication module 20, the splitter/combiner 31 and the processor 32, the common port of the first power divider 13 is connected to the first antenna 11, and the common port of the second power divider 14 is connected to the second antenna 12.
Specifically, the operating frequency ranges of the first antenna 11 and the second antenna 12 include the communication frequency range thereof, such as the 4G/5G communication frequency range, and the frequency range thereof may specifically include 1710-6000 MHz. The working frequency range of the communication module 20 includes a communication frequency range thereof, such as 4G/5G communication, the frequency range thereof may be 1710-6000MHz, the communication module 20 supports MIMO communication, has 2 MIMO antenna interfaces, and the communication module 20 supports 2T 2R.
In the MIMO communication apparatus for implementing dual/multi-path bundled communication by using two antennas, an output port of a first power divider 13 and an output port of a second power divider 14 are sequentially connected to a communication module 20, a splitter/combiner 31 and a processor 32, a common port of the first power divider 13 is connected to a first antenna 11, and a common port of the second power divider 14 is connected to a second antenna 12, so that dual/multi-path bundled communication is implemented by using two antennas, the number of antennas is reduced, the size requirement on terminal equipment is reduced, two-path bundled communication and MIMO communication technologies are supported, broadband communication can be implemented, a space diversity technology in the MIMO communication technology can be used to make up for gain loss of the power dividers, the flexibility of use of corresponding communication equipment is improved, and the cost of corresponding communication schemes is reduced.
Referring to fig. 3, the first power divider and the second power divider respectively include 2 output ports (port 1 and port 2 shown in fig. 3), the communication module includes a first communication module and a second communication module, and each of the communication modules (the first communication module and the second communication module) includes a first antenna port (antenna port 1) and a second antenna port (antenna port 2);
a first antenna port of the ith communication module is connected with an ith output port of the first power divider, a second antenna port of the ith communication module is connected with an ith output port of the second power divider, and each communication module is respectively connected with the processor through the branching/combining device; i takes the value 1 or 2.
Specifically, a first antenna port of the first communication module is connected to a first output port of the first power splitter, a second antenna port of the first communication module is connected to a first output port of the second power splitter, a first antenna port of the second communication module is connected to a second output port of the first power splitter, and a second antenna port of the second communication module is connected to a second output port of the second power splitter.
In one embodiment, the first antenna receives a signal transmitted by a base station to obtain a first signal, and feeds the first signal into a common port of a first power divider, where the first power divider equally divides the first signal into 2 channels of signals and outputs the signals to each output port; the second antenna receives a signal transmitted by the base station to obtain a second signal, the second signal is fed into a common port of a second power divider, and the second power divider equally divides the second signal into 2 paths of signals and outputs the signals to each output port; each communication module receives signals respectively sent by the first power divider and the second power divider to obtain 2-path antenna signals, demodulates the 2-path antenna signals into baseband data streams, and transmits the baseband data streams to the branching/combining device; the branching/combining device collects the baseband data streams to obtain a combined data stream, and sends the combined data stream to the processor.
The embodiment provides a downlink signal flow process of the MIMO communication device.
Specifically, as shown in fig. 3, the downstream signal flow includes: a base station transmits signals (RF signals), a 1 st antenna (a first antenna) receives the signals, feeds the signals into a 1 st common port of a power divider (a first power divider), and equally divides the signals into two paths of signals through the 1 st power divider and outputs the signals to two output ports; ideally, the signal power of each output port is 1/2 downlink signal power; through a feeder line, a 1 st antenna port of a 1 st communication module (a first communication module) receives a 1 st port downlink signal (1/2 downlink signal power) from a 1 st power divider, and meanwhile, a 2 nd antenna port of the 1 st communication module receives a 1 st port downlink signal (1/2 downlink signal power) from a 2 nd power divider; by analogy, the 1 st antenna port of the 2 nd communication module (second communication module) receives a 2 nd port downlink signal (1/2 downlink signal power) from the 1 st power divider, and meanwhile, the 2 nd antenna port of the 2 nd communication module receives a 2 nd port downlink signal (1/2 downlink signal power) from the 2 nd power divider; the two-way antenna signals (RF signals) received by each communication module demodulate the RF signals into baseband data streams (IP data streams), and then each transmit the data streams to a two-way data splitter/combiner via a communication interface (e.g., a USB communication interface), and then the data streams are collected (combined).
Further, the processor generates IP data to be transmitted and sends the IP data to the shunt/combiner; the shunt/combiner shunts the IP data into 2 paths of sub-IP data flows, and transmits the 2 paths of sub-IP data flows to each communication module; each communication module modulates the received sub-IP data stream to obtain 2 paths of uplink signals; a first antenna port of the first communication module sends one path of uplink signals to a first power divider, and a second antenna port of the first communication module sends the other path of uplink signals to a second power divider; a first antenna port of a second communication module sends one path of uplink signals to a first power divider, and a second antenna port of the second communication module sends the other path of uplink signals to a second power divider; the first power divider combines the received 2-path uplink signals to obtain a first combined signal, and a first antenna connected with a public port transmits the first combined signal; the second power divider combines the received 2-path uplink signals to obtain a second combined signal, and the second combined signal is transmitted through a second antenna connected with the public port.
The present embodiment provides an uplink signal flow procedure of a MIMO communication apparatus.
Specifically, as shown in fig. 3, the upstream signal flow direction includes: the splitter/combiner splits (cuts) the IP data to be sent into two paths of sub-IP data flows to be sent, and then transmits the two paths of sub-IP data flows to each communication module through a certain communication interface (such as a USB communication interface); each communication module modulates the data stream and outputs the data stream as two paths of antenna signals (RF signals); through a feeder line, a 1 st antenna port of a 1 st communication module sends an uplink signal to a 1 st port of a 1 st power divider, and a 2 nd antenna port of the 1 st communication module sends another uplink signal to a 1 st port of a 2 nd power divider; by analogy, the 1 st antenna port of the 2 nd communication module sends an uplink signal to the 2 nd port of the 1 st power divider, and the 2 nd antenna port of the 2 nd communication module sends an uplink signal to the 2 nd port of the 2 nd power divider; thus, 2 ports of the 1 st power divider obtain 2 paths of uplink signals, and in an ideal state, after being combined by the power dividers, the power of each path of uplink signal is 1/2 which is obtained from the public port, and after being combined, the power of each path of uplink signal is output from the public port of the 1 st power divider; similarly, 2 ports of the 2 nd power divider obtain 2 paths of uplink signals, the power of each path of uplink signal is obtained from the common port as 1/2, and the uplink signals are combined and then output from the common port of the 2 nd power divider; a public port of the 1 st power divider is connected with a 1 st antenna, and an uplink signal is transmitted and output from the 1 st antenna; similarly, the common port of the 2 nd power divider is connected with the 2 nd antenna, and the other uplink signal is transmitted and output from the 2 nd antenna.
In one embodiment, the operating frequency ranges of the first power divider and the second power divider are both 1710MHz to 6000 MHz.
Further, in the first power divider and the second power divider, the reflection coefficient of each port is less than-15 db.
Further, in the first power divider and the second power divider, the isolation degree between the output ports is less than-20 db.
The first power divider and the second power divider are both two-way power dividers.
In this embodiment, the MIMO communication apparatus that uses two antennas to implement dual/multi-path bundled communication uses MIMO communication, uses two antennas in number, and uses two power dividers (i.e., Splitter/Combiner) in number. The performance requirements of each power divider (first power divider and second power divider) include: a) the working frequency range includes the communication frequency range, such as 4G/5G communication, the frequency range 1710-; b) the reference requirement of the reflection coefficient of each port of the power divider is less than-15 db; c) the isolation reference between the output ports of the power divider is less than-20 db; d) the reference requirement for insertion loss between the common terminal of the power divider and the output terminal is not more than 5 db. Each power divider is in the form of a microstrip power divider, and can also be in the form of a box power divider.
In one example, a microstrip power divider (power divider) implementation is given, namely an implementation of a two-way wilkinson (wilkinson) power divider:
the example is composed of passive devices such as microstrip lines, resistors and the like;
the power divider is designed as a 4G/5G two-way Wilkinson power divider, and in order to obtain a wider working broadband, the expansion of a working frequency band is realized in a multi-section (generally 6-9 sections) stepped impedance conversion cascade mode. The present example also provides a wilkinson power divider of a nine-section stepped impedance transformation cascade design, fig. 4 shows a structure diagram of a nine-section wilkinson circuit, and fig. 5 shows a PCB board diagram of the nine-section wilkinson power divider.
In the example, the electrical length of each transmission line is lambda/4 (lambda is the wavelength of electromagnetic waves in the transmission medium), and isolation resistors are bridged between the sections of the left branch and the right branch. As shown in fig. 4, a wilkinson circuit structure diagram of a nine-section ladder impedance transformation cascade design is provided, and the characteristic impedances of each section of transmission line are respectively Z1, Z2, Z3, Z4, Z5, Z6, Z7, Z8 and Z9; the isolation resistors are R1, R2, R3, R4, R5, R6, R7, R8 and R9, and the resistance values of the isolation resistors are 240 ohms, 120 ohms, 210 ohms, 330 ohms, 470 ohms, 620 ohms, 430 ohms, 510 ohms and 620 ohms respectively; the characteristic impedance of each port of the power divider is Z0, and Z0 is 50 Ω.
Figure 5 shows a diagram of a PCB of a power divider of the Wilkinson type.
The physical dimensions of each microstrip line of the power divider are shown in table 1.
Table 1 power divider each section microstrip line physical dimension (mm)
The power divider size reference is no greater than 50x25x1mm (length x width x height).
The Wilkinson power distribution implementation index comprises the following steps: the working frequency range comprises 4G/5G communication, and the frequency range is 600-6000 MHz; after the public port is input, the output power of the port 1 and the port 2 is equal, and no phase difference exists; the reflection coefficients of the port 1 and the port 2 are less than-20 db; the reflection coefficient of the common port is less than-16 db; the isolation between the port 1 and the port 2 is less than-20 db; the insertion loss between the common end port 1 and the port 2 is not more than 5 db.
The MIMO communication apparatus for implementing dual/multi-path bundled communication by using two antennas provided by this example has the following technical effects: the number of antennas is reduced (only two antennas are used); the size requirement on the terminal equipment is reduced; two-way bundled communication and MIMO communication technology are supported, and broadband communication is realized; the gain loss of the power divider is made up by using the space diversity technology in the MIMO communication technology; the upstream communication distance is sacrificed (about 30%) appropriately. After the MIMO communication device for realizing double/multi-path bundled communication by using the two-path antennas applies a two-path bundled communication technology and an MIMO communication technology to realize broadband communication, the number of the antennas (only two antennas are used) can be reduced by properly sacrificing the uplink communication distance, thereby reducing the size requirement of the multiple antennas on the terminal equipment. The MIMO communication device for realizing dual/multi-path binding communication by the two-path antenna is suitable for broadband wireless terminals, routers/gateways, CPE, small base stations and other equipment. The MIMO communication of two-way binding communication is realized by only using two antennas, the MIMO communication has the characteristics of practical circuit, compact structure and cost reduction, and the contradiction problem of excessive number of antennas of equipment and insufficient size of the equipment is solved.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
It should be noted that the terms "first \ second \ third" referred to in the embodiments of the present application merely distinguish similar objects, and do not represent a specific ordering for the objects, and it should be understood that "first \ second \ third" may exchange a specific order or sequence when allowed. It should be understood that "first \ second \ third" distinct objects may be interchanged under appropriate circumstances such that the embodiments of the application described herein may be implemented in an order other than those illustrated or described herein.
The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product, or device that comprises a list of steps or modules is not limited to the listed steps or modules but may alternatively include other steps or modules not listed or inherent to such process, method, product, or device.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. A MIMO communication device for realizing dual/multi-path binding communication by two-path antennas is characterized by comprising a first antenna, a second antenna, a first power divider, a second power divider, a communication module, a branching/combining device and a processor;
the output port of the first power divider and the output port of the second power divider are sequentially connected with the communication module, the branching/combining device and the processor, the public port of the first power divider is connected with the first antenna, and the public port of the second power divider is connected with the second antenna;
the first power divider and the second power divider respectively comprise 2 output ports, the communication module comprises a first communication module and a second communication module, and each communication module comprises a first antenna port and a second antenna port;
a first antenna port of the ith communication module is connected with an ith output port of the first power divider, a second antenna port of the ith communication module is connected with an ith output port of the second power divider, and each communication module is respectively connected with the processor through the branching/combining device; i takes the value 1 or 2.
2. The MIMO communication apparatus according to claim 1, wherein the first antenna receives a signal transmitted from a base station to obtain a first signal, and feeds the first signal to a common port of a first power divider, and the first power divider equally divides the first signal into 2 channels of signals and outputs the 2 channels of signals to respective output ports; the second antenna receives a signal transmitted by the base station to obtain a second signal, the second signal is fed into a common port of a second power divider, and the second power divider equally divides the second signal into 2 paths of signals and outputs the signals to each output port; each communication module receives signals respectively sent by the first power divider and the second power divider to obtain 2-path antenna signals, demodulates the 2-path antenna signals into baseband data streams, and transmits the baseband data streams to the branching/combining device; the branching/combining device collects the baseband data streams to obtain a combined data stream, and sends the combined data stream to the processor.
3. The MIMO communications apparatus of claim 2, wherein the processor generates IP data to be transmitted, and transmits the IP data to the splitter/combiner; the shunt/combiner shunts the IP data into 2 paths of sub-IP data flows, and transmits the 2 paths of sub-IP data flows to each communication module; each communication module modulates the received sub-IP data stream to obtain 2 paths of uplink signals; a first antenna port of the first communication module sends one path of uplink signals to a first power divider, and a second antenna port of the first communication module sends the other path of uplink signals to a second power divider; a first antenna port of a second communication module sends one path of uplink signals to a first power divider, and a second antenna port of the second communication module sends the other path of uplink signals to a second power divider; the first power divider combines the received 2-path uplink signals to obtain a first combined signal, and a first antenna connected with a public port transmits the first combined signal; the second power divider combines the received 2-path uplink signals to obtain a second combined signal, and the second combined signal is transmitted through a second antenna connected with the public port.
4. The MIMO communication apparatus for implementing dual/multi-channel bonding communication with two antennas as claimed in any one of claims 1 to 3, wherein the first power divider and the second power divider both have an operating frequency range of 1710MHz to 6000 MHz.
5. The MIMO communications apparatus of any one of claims 1 to 3, wherein the reflection coefficient of each port in the first power divider and the second power divider is less than-15 db.
6. The MIMO communications apparatus of any one of claims 1 to 3, wherein the first power divider and the second power divider have an isolation between output ports of less than-20 db.
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