CN104092027B - A kind of active integrated antenna based on vector modulator Up/Down Conversion module - Google Patents
A kind of active integrated antenna based on vector modulator Up/Down Conversion module Download PDFInfo
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- CN104092027B CN104092027B CN201410315408.8A CN201410315408A CN104092027B CN 104092027 B CN104092027 B CN 104092027B CN 201410315408 A CN201410315408 A CN 201410315408A CN 104092027 B CN104092027 B CN 104092027B
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Abstract
The invention discloses a kind of active integrated antenna based on vector modulator Up/Down Conversion module, including local oscillator module, radio-frequency (RF) receiving and transmission module, antenna element and power supply and control module, in radio-frequency (RF) receiving and transmission module, be provided with vector modulator Up/Down Conversion module；Local oscillator module is connected with vector modulator Up/Down Conversion module by A power splitter, and radio-frequency (RF) receiving and transmission module is connected by power splitter/combiner；The amplitude to corresponding radio-frequency channel and phase-modulation is completed by vector modulator Up/Down Conversion module；Power supply and control module are that whole active integrated antenna is powered and is controlled.From carried active integrated antenna was different in the past, the amplitude of the active integrated antenna in the present invention and phase-modulation function are completed by vector modulator Up/Down Conversion module, this module can effectively expand width phase modulation frequency range not affecting on the basis of radio-frequency receiving-transmitting signal phase noise performance, and it is low to realize cost, and adjustable radiant intensity and coverage.
Description
Technical field
The present invention relates to a kind of active integrated antenna based on vector modulator Up/Down Conversion module, belong to communication technology.
Background technology
Along with developing rapidly of mobile communication technology, active integrated antenna arises at the historic moment as one of the direction of base station evolution, but, the concept of active integrated antenna is not accomplished in one move, its generation is inseparable with the development of phased-array technique, microwave integrated circuit technology and radio communication and signal processing technology, is the product of these technological synthesiss development.Base station based on active integrated antenna has clear superiority compared with traditional base station.First, active integrated antenna is integrated with RRH (RemoteRadioUnit) and RET (RemoteElectricalTilt), significantly reduce the terrace resource taken, broadband along with antenna and radio-frequency devices, supports that terrace resource will further be saved by the active antenna of multi-standard.Secondly, the power attenuation that active integrated antenna reduces radio frequency feed line cable owing to eliminating RRH and the RET feeder line being connected with antenna, simultaneously, radio frequency part and being directly integrated of antenna make heat be distributed in the antenna structure that surface area is bigger and natural heat dissipation, it is possible to effectively realize the energy-efficient of base station.Finally, active integrated antenna generally more adopts distributed multi-channel design structure, there is certain self-repairing capability, after some a period of time of system lost efficacy, wave beam elevation angle error and gain can be compensated by the amplitude and phase place adjusting all the other a period of time, it will be further appreciated that, active integrated antenna electrical tilt angle flexibly and beamforming technique can realize vertical many sectors, power system capacity and covering can be made to be obviously improved by further network optimization adjustment.Therefore, active integrated antenna occupies critical role in new generation broadband mobile radio communication construction.
One of key technology as active integrated antenna, the framework of beam shaping will directly influence the overall complexity of active integrated antenna, motility and performance, and therefore, this architecture design has become primary study object naturally.Radio frequency can be divided into realize beam shaping the framework of beam shaping by beam shaping functional realiey present position, local oscillator realizes beam shaping, base band realizes beam shaping and numeric field beam shaping.Local oscillator realizes beam shaping needs huge local oscillator power division network, and it is often high to the phase noise requirements of local oscillation signal, because the phase noise performance of local oscillator will be brought directly to radiofrequency signal.In numeric field beamforming architectures, I/Q is uneven very big to its performance impact and this structure is when high band is applied, and the demand of low-power consumption, high accuracy and high-speed ADC is become its bottleneck.Radio frequency realize the framework of beam shaping because the components and parts of its use are minimum, save huge merit separation structure and fabric swatch is simply compact and be prone to the advantages such as elimination clutter interference and have a good application prospect.But, realize in the framework of beam shaping at radio frequency, the design of phase shifter has extremely challenging.At low-frequency range such as 700MHz to 5GHz, the phase shifter with real-time phase delay (Truetimedelay) often needs to take very big area because electricity is larger in size, and its phase shifting accuracy is very poor.The active phase shifter can have less encapsulation and higher phase shifting accuracy, but the frequency range of its support is very limited, the vector modulator chip AD8340 operating frequency that such as famous America Analog Device Inc. (ADI) provides is 700MHz to 1GHz, AD8341 operating frequency is 1.5GHz to 2.4GHz；The operating frequency that operating frequency is 700MHz to 1GHz, HMC500 of the HMC630 that Hittite company provides is 1.8GHz to 2.2GHz
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of active integrated antenna based on vector modulator Up/Down Conversion module, is applicable to Multi-Frequency scope, and efficiency is high, cost is low.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of active integrated antenna based on vector modulator Up/Down Conversion module, including local oscillator module, radio-frequency (RF) receiving and transmission module, antenna element and power supply and control module, is provided with vector modulator Up/Down Conversion module in radio-frequency (RF) receiving and transmission module；Local oscillator module is connected with vector modulator Up/Down Conversion module by A power splitter, and radio-frequency (RF) receiving and transmission module is connected by power splitter/combiner；Being provided with antenna element in each radio-frequency (RF) receiving and transmission module, the antenna element of all radio-frequency (RF) receiving and transmission module and correspondence constitutes aerial array；The amplitude to corresponding radio-frequency channel and phase-modulation is completed by vector modulator Up/Down Conversion module；Power supply and control module are that whole active integrated antenna is powered and is controlled.
Preferably, described vector modulator Up/Down Conversion module includes A frequency mixer, intermediate-frequency filter, intermediate frequency amplifier, vector modulator, B frequency mixer, A intermediate frequency amplifier, B intermediate frequency amplifier and B power splitter；Local oscillator module is through each road local oscillation signal that A power splitter produces, it is respectively connected in the B power splitter of each vector modulator Up/Down Conversion module, it is divided into two-way then through B power splitter, the local oscillator port of A frequency mixer is accessed through A intermediate frequency amplifier in one tunnel, the local oscillator port of B frequency mixer is accessed through B intermediate frequency amplifier in another road, after the intermediate frequency port of A frequency mixer sequentially passes through intermediate-frequency filter, intermediate frequency amplifier and vector modulator, it is connected with the intermediate frequency port of B frequency mixer；
Described radio-frequency (RF) receiving and transmission module includes A radio-frequency (RF) switch, power amplifier, A radio-frequency filter, B radio-frequency (RF) switch, B radio-frequency filter, C radio-frequency (RF) switch, vector modulator Up/Down Conversion module, D radio-frequency (RF) switch, C radio-frequency filter and low-noise amplifier；The emission port of A radio-frequency (RF) switch is connected with the emission port of B radio-frequency (RF) switch after sequentially passing through power amplifier and A radio-frequency filter；The receiving port of B radio-frequency (RF) switch, after B radio-frequency filter, is connected with the receiving port of C radio-frequency (RF) switch；The emission port of C radio-frequency (RF) switch is connected with the emission port of D radio-frequency (RF) switch；After the receiving port of D radio-frequency (RF) switch sequentially passes through C radio-frequency filter and low-noise amplifier, it is connected with the receiving port of A radio-frequency (RF) switch；
The prevention at radio-frequency port of described A frequency mixer is connected with the public port of D radio-frequency (RF) switch, the prevention at radio-frequency port of B frequency mixer is connected with the public port of B radio-frequency (RF) switch, the public port of A radio-frequency (RF) switch is connected with antenna element, and the public port of C radio-frequency (RF) switch accesses power splitter/combiner.
Beneficial effect: the active integrated antenna based on vector modulator Up/Down Conversion module provided by the invention, has the advantage that
(1) present invention has wider frequency range of application.Although the operating frequency range of single vector modulator is very limited, but the rf frequency of required application first can be faded to operating frequency and the IF-FRE of vector modulator by vector modulator Up/Down Conversion module of the present invention by the method for Up/Down Conversion, become again again after this IF-FRE completes amplitude and phase modulation operations to rf frequency, therefore, this module can effectively expand the operating frequency range of vector modulator, thus, a kind of active integrated antenna based on vector modulator Up/Down Conversion module of the present invention can have wider frequency range of application.
(2) the vector modulator Up/Down Conversion module in the present invention does not affect the phase noise performance of radiofrequency signal while effectively expanding vector modulator operating frequency range.The double conversion technology that this vector modulator Up/Down Conversion module adopts counteracts local oscillation signal phase noise correlation frequency signal phase effect of noise, thus without the phase noise performance affecting radiofrequency signal.
(3) fabric swatch of the present invention is compact, cost is low.The present invention adopts radio frequency to realize phase shift framework, and required components and parts and power division network are minimum, and vector modulator can simultaneously complete amplitude modulation(PAM) and phase-modulation, more compact than traditional attenuator+phase shifter structure.Vector modulator Up/Down Conversion module in the present invention can offset the local oscillator noise impact on systematic function, therefore can adopt the local oscillator scheme of low cost, poor-performing.
(4) present invention has active integrated antenna have the advantage that.Active integrated antenna has the antenna feeder efficiency up to 80%-90%, can effectively realize the configuration of beam position and the scanning of ± 40 ° of scopes, and adjustable radiant intensity and coverage, it being also equipped with certain self-repairing capability, the present invention has the advantages such as above-mentioned equally.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is vector modulator Up/Down Conversion modular structure schematic diagram；
Fig. 3 is radio-frequency (RF) receiving and transmission module structural representation；
Fig. 4 is the phase noise of local oscillation signal in embodiment；
Fig. 5 is the phase noise receiving link input radio frequency signal in embodiment；
Fig. 6 is the phase noise receiving link output radiofrequency signal in embodiment；
Fig. 7 is embodiment beam scanning test result in vertical.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
It is illustrated in figure 1 a kind of active integrated antenna based on vector modulator Up/Down Conversion module, including local oscillator module 4, radio-frequency (RF) receiving and transmission module 1, antenna element 2 and power supply and control module 3, in radio-frequency (RF) receiving and transmission module 1, it is provided with vector modulator Up/Down Conversion module 17；Local oscillator module 4 is connected with vector modulator Up/Down Conversion module 17 by A power splitter 6, and radio-frequency (RF) receiving and transmission module 1 is connected by power splitter/combiner 5；Being provided with antenna element 2 in each radio-frequency (RF) receiving and transmission module 1, the antenna element 2 of all radio-frequency (RF) receiving and transmission module 1 and correspondence constitutes aerial array；The amplitude to corresponding radio-frequency channel and phase-modulation is completed by vector modulator Up/Down Conversion module 17；Power supply and control module 3 are powered for whole active integrated antenna and are controlled.
As in figure 2 it is shown, described vector modulator Up/Down Conversion module 17 includes A frequency mixer 171, intermediate-frequency filter 172, intermediate frequency amplifier 173, vector modulator 174, B frequency mixer 175, A intermediate frequency amplifier 177, B intermediate frequency amplifier 178 and B power splitter 179；Local oscillator module 4 is through each road local oscillation signal 176 that A power splitter 6 produces, it is respectively connected in the B power splitter 179 of each vector modulator Up/Down Conversion module 17, it is divided into two-way then through B power splitter 179, the local oscillator port of A frequency mixer 171 is accessed through A intermediate frequency amplifier 177 in one tunnel, the local oscillator port of B frequency mixer 175 is accessed through B intermediate frequency amplifier 178 in another road, the intermediate frequency port of A frequency mixer 171 is connected with the intermediate frequency port of B frequency mixer 175 after sequentially passing through intermediate-frequency filter 172, intermediate frequency amplifier 173 and vector modulator 174.
As it is shown on figure 3, described radio-frequency (RF) receiving and transmission module 1 includes A radio-frequency (RF) switch 11, power amplifier 12, A radio-frequency filter 13, B radio-frequency (RF) switch 14, B radio-frequency filter 15, C radio-frequency (RF) switch 16, vector modulator Up/Down Conversion module 17, D radio-frequency (RF) switch 18, C radio-frequency filter 19 and low-noise amplifier 110；The emission port of A radio-frequency (RF) switch 11 is connected with the emission port of B radio-frequency (RF) switch 14 after sequentially passing through power amplifier 12 and A radio-frequency filter 13；The receiving port of B radio-frequency (RF) switch 14, after B radio-frequency filter 15, is connected with the receiving port of C radio-frequency (RF) switch 16；The emission port of C radio-frequency (RF) switch 16 is connected with the emission port of D radio-frequency (RF) switch 18；The receiving port of D radio-frequency (RF) switch 18 is connected with the receiving port of A radio-frequency (RF) switch 11 after sequentially passing through C radio-frequency filter 19 and low-noise amplifier 110.
As shown in Figure 2 and Figure 3, the prevention at radio-frequency port of described A frequency mixer 171 is connected with the public port of D radio-frequency (RF) switch 18, the prevention at radio-frequency port of B frequency mixer 175 is connected with the public port of B radio-frequency (RF) switch 14, the public port of A radio-frequency (RF) switch 11 is connected with antenna element 2, and the public port of C radio-frequency (RF) switch 16 accesses power splitter/combiner 5.
The circuit function of this case can be described with receiving two kinds of duties by transmitting, is illustrated below.
When this active integrated antenna works in reception state, A radio-frequency (RF) switch 11, B radio-frequency (RF) switch 14, C radio-frequency (RF) switch 16 and D radio-frequency (RF) switch 18 are switched to receiving port, the electromagnetic wave signal received is transformed into radiofrequency signal by antenna element 2, this radiofrequency signal, after A radio-frequency (RF) switch 11 to the low-noise amplifier 110 in radio-frequency (RF) receiving and transmission module 1 amplifies and C radio-frequency filter 19 filters out-of-band interference, enters vector modulator Up/Down Conversion module 17；Now, this radiofrequency signal is first mixed to for 171 times in the operating frequency range of vector modulator 174 by A frequency mixer, out-of-band interference is filtered and after intermediate frequency amplifier 173 amplifies through intermediate-frequency filter 172, amplitude and phase-modulation is carried out by vector modulator 174, then by B frequency mixer 175 uppermixing to former rf frequency, and filtering out-of-band interference through B radio-frequency filter 15, last each road receives signal and completes to close road at power splitter/combiner 5.
When this active integrated antenna works in emission state, A radio-frequency (RF) switch 11, B radio-frequency (RF) switch 14, C radio-frequency (RF) switch 16 and D radio-frequency (RF) switch 18 are switched to emission port, radiofrequency signal completes after merit divides at power splitter/combiner 5, then through the C radio-frequency (RF) switch 16 in radio-frequency (RF) receiving and transmission module 1 and D radio-frequency (RF) switch 18, enter vector modulator Up/Down Conversion module 17；Now, this radiofrequency signal is first mixed to for 171 times in the operating frequency range of vector modulator 174 by A frequency mixer, out-of-band interference is filtered and after intermediate frequency amplifier 173 amplifies through intermediate-frequency filter 172, amplitude and phase-modulation is carried out by vector modulator 174, then by B frequency mixer 175 uppermixing to former rf frequency, and filter out-of-band interference through A radio-frequency filter 13, finally this radiofrequency signal is converted to electromagnetic wave signal through A radio-frequency (RF) switch 11 to antenna element 2 after being amplified by power amplifier 12 and radiate.
The amplitude to radiofrequency signal and phase-modulation is completed with the shared vector modulator Up/Down Conversion module 17 of reception link it can be seen that this case is launched.It addition, all can by power supply and control module 3 and control to the amplitude of radiofrequency signal and phase-modulation in the switching of transceiver mode and each transceiver module.This case can effectively realize configuration and the scanning of beam position, and adjustable radiant intensity and coverage,
Below in conjunction with an embodiment, this case is further illustrated.
This embodiment antenna is remote controlled active integrated antenna array, its radio frequency operation frequency range is 2.5GHz～2.7GHz, system is operated in tdd mode, receive and dispatch and switched over by switch, IF-FRE is 1.5GHz～1.7GHz, aerial array is that vertical direction unit 8 is equidistantly distributed one-dimensional array, each radio frequency unit maximum transmission power is 30dBm, the gain of antenna element is 6dBi, and the maximum EIRP (EffectiveIsotropicRadiatedPower) of whole aerial array is about 53dBm；The radiation beam of aerial array is 12 ° at the 3dB beam angle of vertical plane, and the 3dB beam angle in horizontal plane is 85 °, and the wave beam in vertical plane can point to arbitrarily angled within the scope of ± 40 °.
Fig. 4 gives the phase noise of local oscillation signal in embodiment, Fig. 5 and Fig. 6 sets forth the phase noise receiving link input radio frequency signal and output radiofrequency signal in example, can be seen that, although the phase noise of local oscillator is poor, and it is basically identical with input phase noise to receive the output phase noise of link, this local oscillator noise absolutely proved in the vector modulator Up/Down Conversion module that this case adopts has no effect on the performance of radiofrequency signal in receiving-transmitting chain.
In Fig. 4, signal power is-11dBm, and signal frequency is 4.2GHz, and the list data won from accompanying drawing is as follows:
The phase noise of table 1 local oscillation signal
In Fig. 5, signal power is-23dBm, and signal frequency is 2.6GHz, and the list data won from accompanying drawing is as follows:
Table 2 receives the phase noise of link input radio frequency signal
In Fig. 6, signal power is-23dBm, and signal frequency is 2.6GHz, and the list data won from accompanying drawing is as follows:
Table 3 receives the phase noise of link output radiofrequency signal
Fig. 7 gives inventive antenna beam scanning test result in vertical plane, although this result is with 10 ° for interval, and actually this scanning beam can be accurately directed to specify position within the scope of ± 40 °.
The above is only the preferred embodiment of the present invention; it is noted that, for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (1)
1. the active integrated antenna based on vector modulator Up/Down Conversion module, it is characterized in that: include local oscillator module (4), radio-frequency (RF) receiving and transmission module (1), antenna element (2) and power supply and control module (3), in radio-frequency (RF) receiving and transmission module (1), being provided with vector modulator Up/Down Conversion module (17)；Local oscillator module (4) is connected with vector modulator Up/Down Conversion module (17) by A power splitter (6), and radio-frequency (RF) receiving and transmission module (1) is connected by power splitter/combiner (5)；Being provided with antenna element (2) in each radio-frequency (RF) receiving and transmission module (1), the antenna element (2) of all radio-frequency (RF) receiving and transmission module (1) and correspondence constitutes aerial array；The amplitude to corresponding radio-frequency channel and phase-modulation is completed by vector modulator Up/Down Conversion module (17)；Power supply and control module (3) are powered for whole active integrated antenna and are controlled；
Described vector modulator Up/Down Conversion module (17) includes A frequency mixer (171), intermediate-frequency filter (172), intermediate frequency amplifier (173), vector modulator (174), B frequency mixer (175), A intermediate frequency amplifier (177), B intermediate frequency amplifier (178) and B power splitter (179)；Local oscillator module (4) is through each road local oscillation signal (176) that A power splitter (6) produces, it is respectively connected in the B power splitter (179) of each vector modulator Up/Down Conversion module (17), it is divided into two-way then through B power splitter (179), the local oscillator port of A frequency mixer (171) is accessed through A intermediate frequency amplifier (177) in one tunnel, the local oscillator port of B frequency mixer (175) is accessed through B intermediate frequency amplifier (178) in another road, the intermediate frequency port of A frequency mixer (171) sequentially passes through intermediate-frequency filter (172), after intermediate frequency amplifier (173) and vector modulator (174), it is connected with the intermediate frequency port of B frequency mixer (175)；
Described radio-frequency (RF) receiving and transmission module (1) includes A radio-frequency (RF) switch (11), power amplifier (12), A radio-frequency filter (13), B radio-frequency (RF) switch (14), B radio-frequency filter (15), C radio-frequency (RF) switch (16), vector modulator Up/Down Conversion module (17), D radio-frequency (RF) switch (18), C radio-frequency filter (19) and low-noise amplifier (110)；The emission port of A radio-frequency (RF) switch (11) is connected with the emission port of B radio-frequency (RF) switch (14) after sequentially passing through power amplifier (12) and A radio-frequency filter (13)；The receiving port of B radio-frequency (RF) switch (14), after B radio-frequency filter (15), is connected with the receiving port of C radio-frequency (RF) switch (16)；The emission port of C radio-frequency (RF) switch (16) is connected with the emission port of D radio-frequency (RF) switch (18)；The receiving port of D radio-frequency (RF) switch (18) is connected with the receiving port of A radio-frequency (RF) switch (11) after sequentially passing through C radio-frequency filter (19) and low-noise amplifier (110)；
The prevention at radio-frequency port of described A frequency mixer (171) is connected with the public port of D radio-frequency (RF) switch (18), the prevention at radio-frequency port of B frequency mixer (175) is connected with the public port of B radio-frequency (RF) switch (14), the public port of A radio-frequency (RF) switch (11) is connected with antenna element (2), and the public port of C radio-frequency (RF) switch (16) accesses power splitter/combiner (5).
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| CN108226914A (en) * | 2018-01-26 | 2018-06-29 | 重庆邮电大学 | A kind of millimetre-wave attenuator and radar integrated radio-frequency Front-end Design method |
| CN108445305B (en) * | 2018-03-13 | 2023-06-23 | 南京信息工程大学 | Electronic downtilt angle detection system and method for mobile base station antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101569058A (en) * | 2006-12-22 | 2009-10-28 | 艾利森电话股份有限公司 | Antenna arrangement |
| CN202121073U (en) * | 2011-06-21 | 2012-01-18 | 成都嘉纳海威科技有限责任公司 | Ku wave band miniaturized active phased array antenna system based on vector modulation |
| CN103716080A (en) * | 2012-10-05 | 2014-04-09 | Nxp股份有限公司 | A phased array antenna and associated methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101569058A (en) * | 2006-12-22 | 2009-10-28 | 艾利森电话股份有限公司 | Antenna arrangement |
| CN202121073U (en) * | 2011-06-21 | 2012-01-18 | 成都嘉纳海威科技有限责任公司 | Ku wave band miniaturized active phased array antenna system based on vector modulation |
| CN103716080A (en) * | 2012-10-05 | 2014-04-09 | Nxp股份有限公司 | A phased array antenna and associated methods |
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Application publication date: 20141008 Assignee: Jiangsu Hengxin Science & Technology Co., Ltd. Assignor: Southeast University Contract record no.: 2018320010040 Denomination of invention: Active integrated antenna based on up and down frequency conversion modules of vector modulators Granted publication date: 20160629 License type: Exclusive License Record date: 20180508 |