CN203406882U - Parallelly combined intelligent antenna calibration coupling device - Google Patents
Parallelly combined intelligent antenna calibration coupling device Download PDFInfo
- Publication number
- CN203406882U CN203406882U CN201320523219.0U CN201320523219U CN203406882U CN 203406882 U CN203406882 U CN 203406882U CN 201320523219 U CN201320523219 U CN 201320523219U CN 203406882 U CN203406882 U CN 203406882U
- Authority
- CN
- China
- Prior art keywords
- power splitter
- merit
- amplitude
- phase place
- power
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a parallelly combined intelligent antenna calibration coupling device comprising three power dividers and a phase and amplitude compensation module. The combining end of the first power divider is connected with the combining end of a first power divider of the other antenna calibration coupling device, one power dividing port of the first power divider is connected with the power dividing port of the second power divider, and the other dividing port of the first power divider is connected with the power dividing port of the third power divider. The combining end of the second power divider is connected with coupling ends of all signal channels of the device, one power dividing port of the second power divider is connected with the power dividing port of the first power divider, and the other dividing port of the second power divider is connected with the phase and amplitude compensation module. The combining end of the third power divider is connected with a calibration channel, one power dividing port of the third power divider is connected with the power dividing port of the first power divider, and the other dividing port of the third power divider is connected with the phase and amplitude compensation module. When the antenna calibration coupling device is employed as the main device, the phase and amplitude compensation module compensates for the difference of amplitude and phase between signals arrived in the calibration channel of the main device and signals arrived in the calibration channel of the secondary device.
Description
Technical field
The utility model relates to wireless communication field, relates in particular to a kind of parallel combination intelligent antenna calibration coupling device.
Background technology
In using the communication system of smart antenna, for low-frequency range, wavelength senior general causes RRU(RF remote unit) the large and antenna of power amplifier coupling area to take volume large, if a plurality of passages of RRU are made in a casing, can cause the volume of whole product device large, Heavy Weight, is difficult to construction, so conventionally RRU circuit is divided into two multichannel RRU circuit arrangements.For example, the RRU circuit of 8 passages is divided into two 4 passage RRU circuit arrangements, then these two 4 passage RRU circuit arrangements is carried out to cascade.For make a plurality of passages of RRU accomplish phase place and amplitude in full accord, need to use an intelligent antenna calibration coupling device that each channel signal is transferred to the calibration that calibrated channel carries out phase place and amplitude.
For high band, antenna volume is less, generally intelligent antenna calibration coupling device is accomplished together with a plurality of antennas, as shown in Figure 1, calibration coupling device is independently placed on to antenna field, and physical circuit is realized can be as shown in Figure 2.But for low-frequency range, between a plurality of antennas, distance forms distance and the wavelength proportional (being generally half-wavelength) of smart antenna array, and frequency range is low, this distance is just far away, and antenna volume is just large, and calibration coupling device is difficult to accomplish together with antenna, constructional difficulties.Therefore in prior art, conventionally calibration coupling device is divided into two devices of principal and subordinate, respectively the channel signal in two multichannel RRU circuit arrangements is coupled to calibrated channel, between two devices of principal and subordinate, with two power splitters, connect, two power splitters are for being transferred to each channel signal of master and slave devices the calibrated channel of RRU main circuit, and on RRU main circuit, calibrated channel data acquisition is carried out in unification.The general master and slave devices symmetrical structure shown in Fig. 3 and the master and slave devices unsymmetric structure shown in Fig. 5 of adopting when hardware is realized.
In the master and slave devices symmetrical structure of Fig. 3, two power splitters are external, master and slave devices is not distinguished principal and subordinate from hardware, it is identical product, the cascade connected mode of processing by signal is completely distinguished principal and subordinate, so just accomplished the symmetry on two calibration coupling device hardware, physical circuit is realized can be as shown in Figure 4.But this design need to increase by 4 joints (each two of principals and subordinates), and power splitter is external also can increase equipment construction difficulty, and waterproof lightning protection difficulty all can increase.
In the master and slave devices unsymmetric structure of Fig. 5, two power splitters are built into main device, between master and slave devices, only need like this RF cable of a regular length to connect, physical circuit is realized can be as shown in Figure 6, in order to realize, calibrated rear main device with consistent with phase place from device antenna opening transmitting and receiving signal amplitude, need to accomplish that the amplitude that the signal of master and slave devices arrives after calibrated channel is identical with phase place, owing to arriving calibrated channel from device receiving and transmitting signal, than main device receiving and transmitting signal, arrive the many RF cables through a regular length of calibrated channel, therefore in main device, also need to increase a hardware module and carry out the compensation of amplitude and phase place.The method due to main device with from device, at hardware, will exist differently, no matter in design, still in maintenance, all need to consider two kinds of products of principal and subordinate, installation easily makes mistakes, and can increase maintenance cost.
Utility model content
In order to overcome the defect of above-mentioned existing collimation technique, the utility model proposes a kind of parallel combination intelligent antenna calibration coupling device, not only accomplished the symmetry on master and slave devices hardware, and master and slave devices only needs the RF cable of a regular length to connect, reduce radio-frequency joint, reduced equipment construction difficulty.Described device comprises power splitter 1, power splitter 2 and power splitter 3, also comprises a phase place and Amplitude Compensation module:
Power splitter 1 close the terminal of closing that terminal connects the power splitter 1 that installs described in another, a merit divides a mouthful merit that connects power splitter 2 to divide mouth, another merit divides a mouthful merit that connects power splitter 3 to divide mouth; Power splitter 2 close the coupled end that terminal connects all signalling channels of described device, a merit divides a mouthful merit that connects power splitter 1 to divide mouth, another merit is divided and mouthful is connected phase place and an Amplitude Compensation module; The terminal of closing of power splitter 3 connects calibrated channel, and a merit divides a mouthful merit that connects power splitter 1 to divide mouth, and another merit is divided mouthful connection phase place and an Amplitude Compensation module;
The two ends of phase place and amplitude calibration module are connected respectively a merit of power splitter 2 and divide a merit of mouth and power splitter 3 to divide mouth; When described device is during as main device, after arriving calibrated channel, the signal that described phase place and Amplitude Compensation module will the main devices of compensation arrives amplitude and the phase difference calibrated channel with the signal from device.
Preferably, described device and filter are in same hardware configuration, and this hardware configuration can be placed on the back side of RF remote unit place hardware.
Preferably, described device and filter are when same hardware configuration, described device is laid on pcb board, described phase place and amplitude calibration module can be carried out phase compensation by quantity or both forms of combination of compensation PCB microstrip line length or equalized delay line, can also be by regulating the attenuation of fixed attenuator to carry out Amplitude Compensation.Further, pcb board can be the bonnet of filter, and signal enters pcb board by screw by the cavity of filter, by regulating the output impedance of filter to come adjustment screw to connect the impedance mismatching of bringing.
With respect to prior art, this utility model has the following advantages: 1, on master and slave devices hardware, do not distinguish principal and subordinate, and be identical product, the cascade connected mode of processing by signal is completely distinguished principal and subordinate, reduces material variety and maintenance cost; 2, there is no extra external assembly as power splitter etc., alleviate the difficulty of design and construction; 3, external connection line cable is minimum, and whole calibrating installation only needs a RF cable.
Accompanying drawing explanation
Fig. 1 is that high band antenna system is placed on calibration coupling device the design frame chart of antenna field;
Fig. 2 is that high band antenna system is placed on calibration coupling device in the circuit diagram of antenna field;
Fig. 3 is the symmetrical hardware block diagram of the master and slave devices of prior art;
Fig. 4 is the circuit diagram of the symmetrical hardware configuration of master and slave devices of prior art;
Fig. 5 is the master and slave devices asymmetric hardware structured flowchart of prior art;
Fig. 6 is the circuit diagram of the master and slave devices asymmetric hardware structure of prior art;
Fig. 7 is the structured flowchart of the calibration coupling device of the utility model embodiment mono-;
Fig. 8 is the circuit diagram of the calibration coupling device of the utility model embodiment mono-.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
The calibration coupling device of mono-: 8 dual-four channel intelligent antenna of embodiment
The utility model is applicable to any multichannel smart antenna, and the present embodiment is only coupled as example with the calibration of 8 dual-four channel intelligent antennas.Its basic thought as shown in Figure 7, adopt the calibration coupling device of two 4 passages of principal and subordinate, only use the RF cable of a regular length to be sent to main device from the multi-channel coupling signal of device, by main device, all channel signals of master and slave devices are coupled to calibrated channel again, and accomplish on two device hardware of principal and subordinate identical simultaneously.The hardware circuit of the present embodiment master and slave devices is realized as shown in Figure 8.
In Fig. 8, calibration coupling device and design of filter are in same hardware configuration, and this structure is placed on the back side of RF remote unit (RRU) place hardware.The bonnet of filter adopts a pcb board, and calibration coupling device is just laid on this pcb board, and signal enters pcb board by screw by the cavity of filter, then by regulating the output impedance of filter to come adjustment screw to connect the impedance mismatching of bringing.
The calibration coupling device of the present embodiment comprises three power splitters: power splitter 1, power splitter 2 and power splitter 3, also comprise a phase place and amplitude calibration module, power splitter 1 close the external radio-frequency maser that terminal is connected to place device, a merit divides a mouthful merit that connects power splitter 2 to divide mouth, and another merit divides a mouthful merit that connects power splitter 3 to divide mouth; Power splitter 2 close the coupled end that terminal connects all signalling channels of described device, a merit divides a mouthful merit that connects power splitter 1 to divide mouth, another merit is divided and mouthful is connected phase place and an Amplitude Compensation module; The terminal of closing of power splitter 3 connects calibrated channel, and a merit divides a mouthful merit that connects power splitter 1 to divide mouth, and another merit is divided mouthful connection phase place and an Amplitude Compensation module; The two ends of phase place and amplitude calibration module are connected respectively a merit of power splitter 2 and divide a merit of mouth and power splitter 3 to divide mouth.In this device, the signal of 4 passages accesses corresponding passage by the external radio-frequency maser of device.
Two calibration coupling device radio-frequency masers of closing terminal by power splitter 1 interconnect and arrange after master slave relation, from device receiving and transmitting signal, arrive calibrated channel and can arrive the many RF cables through two power splitters and a regular length of calibrated channel than main device receiving and transmitting signal, amplitude in so main device and phase compensation block arrive the signal that the signal of main device is carried out to the compensation ，Shi winner device of amplitude and phase place after calibrated channel identical with amplitude and phase place signal arrival calibrated channel from device.The present embodiment carries out phase compensation by quantity or both forms of combination of compensation PCB microstrip line length or equalized delay line, by regulating the attenuation of fixed attenuator to carry out Amplitude Compensation.
The calibration coupling process of bis-: 8 dual-four channel intelligent antennas of embodiment
The device that the present embodiment adopts embodiment mono-to describe carries out the calibration coupling of 8 dual-four channel intelligent antennas.Concrete operation step is as follows:
A, with power splitter 1 in two described devices of RF cable connection of a regular length, close the radio-frequency maser of terminal, optional one of them device, the calibrated channel baseband portion of its place RRU is connected to baseband processing circuitry by optical fiber, operating personnel in when construction without distinguishing master and slave devices, embedded software can be by principal and subordinate RRU and baseband processing circuitry connected mode automatic discrimination one of them be main device, distinguishing rule is that main RRU not only with from RRU has and is connected in baseband portion, and have and be connected with baseband processing circuitry, and be not directly connected with baseband processing circuitry in baseband portion from RRU.
B, each channel signal cable adopts straight cutting mode to be connected to respectively main device and from the radio-frequency maser of the respective channel of device;
C, regulates the phase place of main device and the signal of amplitude calibration module ，Shi winner device to arrive after calibrated channel identical with amplitude and phase place signal arrival calibrated channel from device.The present embodiment is by regulating the attenuation of fixed attenuator to carry out Amplitude Compensation, and the amplitude that main device signal arrives after calibrated channel is greater than the amplitude from device signal arrival calibrated channel, increases attenuation, otherwise reduces attenuation; By compensating PCB microstrip line length or using delay line device, (delay line is packaged device, for fixing frequency, there is fixing phase deviation) quantity compensation or both forms of combination carry out phase compensation, can first utilize delay line device to carry out coarse adjustment, recycling increases the method for minimizing microstrip line and carries out fine adjustment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (7)
1. a parallel combination intelligent antenna calibration coupling device, is characterized in that, described device comprises three power splitters: power splitter 1, power splitter 2 and power splitter 3, also comprise a phase place and Amplitude Compensation module,
Power splitter 1 close the terminal of closing that terminal connects the power splitter 1 that installs described in another, a merit divides a mouthful merit that connects power splitter 2 to divide mouth, another merit divides a mouthful merit that connects power splitter 3 to divide mouth; Power splitter 2 close the coupled end that terminal connects all signalling channels of described device, a merit divides a mouthful merit that connects power splitter 1 to divide mouth, another merit is divided and mouthful is connected phase place and an Amplitude Compensation module; The terminal of closing of power splitter 3 connects calibrated channel, and a merit divides a mouthful merit that connects power splitter 1 to divide mouth, and another merit is divided mouthful connection phase place and an Amplitude Compensation module;
The two ends of phase place and amplitude calibration module are connected respectively a merit of power splitter 2 and divide a merit of mouth and power splitter 3 to divide mouth; When described device is during as main device, after arriving calibrated channel, the signal that described phase place and Amplitude Compensation module will the main devices of compensation arrives amplitude and the phase difference calibrated channel with the signal from device.
2. install according to claim 1, it is characterized in that, described device and filter are in same hardware configuration.
3. install according to claim 2, it is characterized in that, described hardware configuration is placed on the back side of RF remote unit place hardware.
4. install according to claim 2, it is characterized in that, described device is laid on pcb board.
5. install according to claim 4, it is characterized in that, described phase place and amplitude calibration module are carried out phase compensation by quantity or both forms of combination of compensation PCB microstrip line length or equalized delay line.
6. install according to claim 4, it is characterized in that, described phase place and amplitude calibration module are by regulating the attenuation of fixed attenuator to carry out Amplitude Compensation.
7. device according to claim 4, is characterized in that, described pcb board is the bonnet of filter, and signal enters pcb board by screw by the cavity of filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523219.0U CN203406882U (en) | 2013-08-26 | 2013-08-26 | Parallelly combined intelligent antenna calibration coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523219.0U CN203406882U (en) | 2013-08-26 | 2013-08-26 | Parallelly combined intelligent antenna calibration coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406882U true CN203406882U (en) | 2014-01-22 |
Family
ID=49942801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320523219.0U Expired - Fee Related CN203406882U (en) | 2013-08-26 | 2013-08-26 | Parallelly combined intelligent antenna calibration coupling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203406882U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426615A (en) * | 2013-08-26 | 2015-03-18 | 北京信威通信技术股份有限公司 | Parallel-combination calibration coupling apparatus for intelligent antenna, and method thereof |
| EP3982565A4 (en) * | 2019-06-28 | 2022-06-22 | Huawei Technologies Co., Ltd. | Transmission channel calibration apparatus and wireless communication device |
| EP3982564A4 (en) * | 2019-06-28 | 2022-06-22 | Huawei Technologies Co., Ltd. | Device for correcting deviation between multiple transmission channels, and wireless communication apparatus |
| US11962384B2 (en) | 2021-12-28 | 2024-04-16 | Huawei Technologies Co., Ltd. | Apparatus for correcting deviation between a plurality of transmission channels and wireless communications device |
-
2013
- 2013-08-26 CN CN201320523219.0U patent/CN203406882U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426615A (en) * | 2013-08-26 | 2015-03-18 | 北京信威通信技术股份有限公司 | Parallel-combination calibration coupling apparatus for intelligent antenna, and method thereof |
| CN104426615B (en) * | 2013-08-26 | 2016-12-28 | 北京信威通信技术股份有限公司 | A kind of parallel combination intelligent antenna calibration coupling device and method |
| EP3982565A4 (en) * | 2019-06-28 | 2022-06-22 | Huawei Technologies Co., Ltd. | Transmission channel calibration apparatus and wireless communication device |
| EP3982564A4 (en) * | 2019-06-28 | 2022-06-22 | Huawei Technologies Co., Ltd. | Device for correcting deviation between multiple transmission channels, and wireless communication apparatus |
| US11784727B2 (en) | 2019-06-28 | 2023-10-10 | Huawei Technologies Co., Ltd. | Transmission channel calibration apparatus and wireless communications device |
| US11962384B2 (en) | 2021-12-28 | 2024-04-16 | Huawei Technologies Co., Ltd. | Apparatus for correcting deviation between a plurality of transmission channels and wireless communications device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105119671A (en) | Multichannel scattering parameter testing circuit and method for complex modulation and phase coherence system | |
| CN104426615B (en) | A kind of parallel combination intelligent antenna calibration coupling device and method | |
| CN203406882U (en) | Parallelly combined intelligent antenna calibration coupling device | |
| US9246524B2 (en) | Outdoor coupler unit utilizing circulator network | |
| WO2012103831A3 (en) | Antenna device and system | |
| CN205211943U (en) | Antenna calibrating device | |
| CN100440810C (en) | A method to automatically obtain inner connection relation of optical network node | |
| CN102325339A (en) | Standing wave detection method and device and radio remote unit | |
| CN103888970B (en) | A kind of test equipment | |
| CN103245958B (en) | Marking-checking network distributing device suitable for satellite navigation digital multi-beam array | |
| KR20180100494A (en) | Vivaldi Antenna-Based Antenna System | |
| CN102904654A (en) | Ultra wide band small multi-channel calibrating network | |
| CN102055506A (en) | Time division-synchronization code division multiple access (TD-SCDMA) and time division-long term evolution (TD-LTE) intelligent antenna multi-channel broadband calibration network | |
| IN2011KN05090A (en) | ||
| CN101587977A (en) | The slab guide sum-difference network | |
| CN105045744B (en) | A kind of high-speed interface | |
| KR20150072984A (en) | Base transceiver interface unit and repeater having it | |
| CN207819931U (en) | A kind of miniaturization 4x4MIMO microwave channel simulators | |
| CN106797064A (en) | Micro-strip multiplexer | |
| CN208768078U (en) | Digital control type adjustable microwave delayer | |
| CN105811063B (en) | Power processing circuit, No. two amplifying circuits and multichannel amplifying circuit | |
| CN203457154U (en) | Antenna-feed system access device and antenna feed system | |
| EP2713527A2 (en) | Base station device and signal transmission method thereof | |
| US20180248240A1 (en) | Compact antenna feeder with dual polarization | |
| CN209072507U (en) | Calibrate monitoring device and antenna system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191121 Granted publication date: 20140122 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200710 Granted publication date: 20140122 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20190826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |