CN206977425U

CN206977425U - A kind of TD LTE microwave power amplifiers

Info

Publication number: CN206977425U
Application number: CN201720820812.XU
Authority: CN
Inventors: 丁永宽
Original assignee: Shenzhen Ruidingxin Electronic Technology Co Ltd
Current assignee: Shenzhen Ruidingxin Electronic Technology Co Ltd
Priority date: 2017-07-07
Filing date: 2017-07-07
Publication date: 2018-02-06
Anticipated expiration: 2027-07-07

Abstract

Communication electronics field is the utility model is related to, especially a kind of TD LTE microwave power amplifiers.It includes donor antenna, the retransmitting antenna for being connected with communication terminal progress radio communication, the up amplification link for being amplified processing respectively to upward signal and downstream signal and descending amplification link, the baseband decoding synchronization module for carrying out decoding process to downstream signal and the master controller for carrying out conversion modulation treatment to downstream signal for being connected with donor base station progress radio communication.The utility model can make output power signal (gain) have enough automatic adjustabilitys, so as to (the indoor point type zonule in such as underground parking, elevator) signal coverage hole in effective decontamination chamber, stable, reliable wireless signal is provided for the user of interior, user is set also to enjoy the personal communication service of high quality indoors, reach the advantages that signal covering scene is various, signal area coverage is big, to provide signal transacting carrier for network depth optimization.

Description

A kind of TD-LTE microwave power amplifiers

Technical field

Communication electronics field is the utility model is related to, especially a kind of TD-LTE microwave power amplifiers.

Background technology

Power amplifier is amplified wireless signal to realize remote transmitting, and ensures the linear of wireless signal A kind of communication electronics of degree and stability, it is widely used in such as communication base station, broadband debugging emitter, thunder Reach, in the wireless communication system such as electronic countermeasure.Reached its maturity with the construction and development of mobile communication network, the depth of wireless network Degree Optimization Work is increasingly becoming the emphasis of major carrier network Optimization Work, there is provided more targetedly network depth covering solves Certainly scheme, also as the main direction of each network equipment supplier development new product；And the complexity master of network depth optimization It is that the diversity of covering scene, each opposite sex of mounting condition and area coverage, equipment and installation maintenance cost pressure are big, objective Family, which is complained, all many-sides such as can not quickly solve, and power amplifier serves vital during network depth optimizes Effect.

Existing power amplifier causes its generally existing covering scene list due to not satisfactory in terms of system design First, area coverage is small, stability and poor reliability, installs and opens the problems such as cost height, anti-interference difference.Therefore, have Come to provide necessary service for network depth optimization as desired by the improvement to power amplifier.

Utility model content

For above-mentioned the shortcomings of the prior art, the purpose of this utility model is to provide a kind of TD-LTE microwave powers Amplifier.

To achieve these goals, the utility model adopts the following technical scheme that：

A kind of TD-LTE microwave power amplifiers, it includes being used for the alms giver day for receiving the downstream signal from donor base station Line, carry out at decoding for the downstream signal that donor antenna receives to be delivered into baseband decoding synchronization module by master controller The downstream signal for carrying out signal conversion processing to master controller and being exported to master controller is returned again to after reason and is amplified processing Descending amplification link, the downstream signal for descending amplification link to be exported externally convey and reception simultaneously is from communication terminal The retransmitting antenna of upward signal and for the upward signal that retransmitting antenna receives to be delivered into base band solution by master controller Code synchronization module is returned again to master controller progress signal conversion processing and to the upper of master controller output after carrying out decoding process Row signal is amplified the up amplification link of processing, and the donor antenna conveys the upward signal that up amplification link exports To donor base station.

Preferably, the up amplification link includes opening by up first power amplification of radio-frequency cable sequential concatenation Module, upstream radio-frequency signal decay module, up a second power amplification switch module and a logarithmic detector module are closed, it is described The both ends of logarithmic detector module are parallel with a upstream radio-frequency Schottky diode module, the up first power amplification switching molding The input connection retransmitting antenna of group, the output end of the logarithmic detector module and upstream radio-frequency Schottky diode module it is defeated Go out end simultaneously by a up double operation amplifier modules with master controller to be connected, and the upstream radio-frequency Schottky diode module Connect donor antenna simultaneously；

The descending amplification link include by descending first power amplification of radio-frequency cable sequential concatenation switch module, One descending radio frequency signal attenuation module and a descending second power amplification switch module, the descending first power amplification switching molding The input connection donor antenna of group, the output end connection retransmitting antenna of the descending second power amplification switch module and simultaneously Decayed by the downlink radio frequency Schottky diode module of sequential concatenation and descending double operation amplifier modules with downlink radio-frequency signal Module is connected.

Preferably, it also includes being used for by the output end of donor antenna and upstream radio-frequency Schottky diode module and descending First power amplification switch module input be connected and be controlled by master controller the first synchronous control switch and for general Retransmitting antenna and the output end of the input and descending second power amplification switch module of up first power amplification switch module It is connected and is controlled by the second synchronous control switch of master controller.

Preferably, the master controller includes a programmable logic device, and the baseband decoding synchronization module includes a base band Decoding chip, the baseband decoder chip are connected by a MINI-PCIE connectors with programmable logic device.

Preferably, the donor antenna is yagi aerial or wall hanging plate antenna, and the retransmitting antenna is whiplike rubber day Line.

Preferably, it also include one made of metal material sealing shell and at least one piece be packaged in sealing shell It is integrated for up amplification link, descending amplification link, master controller and baseband decoding synchronization module are become one Control panel, it is provided with the sealing shell and is respectively used to assemble for donor antenna and retransmitting antenna and with integrated control panel be connected Antenna terminal.

Preferably, one is also integrated with the integrated control panel respectively to up amplifier chain road, descending amplification link, master control The power adaptation module of device and baseband decoding synchronization module processed power supply, one and power adaptation module are equiped with the sealing shell The power interface of electrical connection.

Preferably, several are additionally provided with the sealing shell with integrated control panel to be connected and be controlled by master controller Status indicator lamp.

As a result of such scheme, the utility model can make output power signal (gain) have enough automatic adjustable Property, so as to (the indoor point type zonule in such as underground parking, elevator) signal coverage hole in effective decontamination chamber, for interior User stable, reliable wireless signal is provided, user is also enjoyed the personal communication service of high quality indoors, reach letter The advantages that number covering scene is various, signal area coverage is big, to provide signal transacting carrier for network depth optimization；Its system knot Structure is simple, degree of intelligence is high, stability is strong, signal cover is wide, has very strong practical value and market popularization value.

Brief description of the drawings

Fig. 1 is the system control principle block diagram of the utility model embodiment；

Fig. 2 is the circuit structure reference chart of the up amplification link of the utility model embodiment；

Fig. 3 is the circuit structure reference chart of the descending amplification link of the utility model embodiment；

Fig. 4 is the circuit structure reference chart of the complete digital signal processing unit of the utility model embodiment；

Fig. 5 is the circuit structure reference chart of the power adaptation module of the utility model embodiment；

Fig. 6 is the planar structure schematic diagram of the utility model embodiment.

Embodiment

Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by right It is required that the multitude of different ways for limiting and covering is implemented.

As shown in Figures 1 to 6, a kind of TD-LTE microwave power amplifiers that the present embodiment provides, it includes：

Donor antenna a, it is mainly used in being connected with donor base station A progress radio communication, i.e.,：Alms giver's base is come from for receiving Stand A downstream signal or to donor base station A transmitting via amplifier carry out power gain amplification output upward signal；

Retransmitting antenna b, it is mainly used in being connected with communication terminal B progress radio communications such as mobile phones, i.e.,：For to letter Communication terminal B transmittings in number coverage carry out the downstream signal of power gain amplification output via amplifier or receive From communication terminal B upward signal；

Descending amplification link c, its downstream signal for being mainly used in receiving donor antenna a are carried out at power gain amplification Manage and the transmitting of downstream signal is carried out by communication terminal B of the retransmitting antenna b into signal cover；

Up amplification link d, its upward signal for being mainly used in receiving retransmitting antenna b are carried out at power gain amplification Manage and the transmitting of upward signal is carried out by donor base station A of the donor antenna a into signal cover；

And

The complete digital signal processing unit being mainly made up of baseband decoding synchronization module e and master controller f, wherein, master control Device f processed is first by via the upward signal of up amplification link d inputs or the downstream signal via descending amplification link c inputs It is delivered in baseband decoding synchronization module e and carries out signal decoding process, then, master controller f is again to after decoding process Upward signal or downstream signal are back in up amplification link d or descending amplification links c respectively after carrying out automatic conversion processing Power gain amplification is carried out, finally to carry out the transmitting of upward signal or downstream signal output.

The amplifier of the present embodiment utilizes donor antenna a, retransmitting antenna b, amplification link and complete digital signal processing dress A signal coverage extension system can be formed by putting, and be carried out by downstream signal received to donor antenna a and from donor base station A Externally launched with retransmitting antenna b after signal decoding, signal adaptation conversion and modulation and gain amplifier processing, to realize Base station signal extends over distribution；And pass through communication being received to retransmitting antenna b and in signal cover simultaneously With donor antenna a after terminal the B decoding of upward signal progress signal, signal adaptation conversion and modulation and gain amplifier processing Externally launch, distribution is extended over realize terminal signaling；With this, complete digital signal processing unit possessed is utilized The division of the characteristics of running parameter adjust automatically and antenna a type, output power signal (gain) can be made to have enough Automatic adjustability, so as to (the indoor point type zonule in such as underground parking, elevator or by geographical environment in effective decontamination chamber Outdoor point type zonule is caused etc. factor) signal coverage hole, stable, reliable wireless signal is provided for the user of interior, is made User can also enjoy the personal communication service of high quality indoors, reach signal covering scene is various, signal area coverage is big etc. Advantage, to provide signal transacting carrier for network depth optimization.

To ensure the treatment effect of modulation and power amplification to upward signal and downstream signal, while to greatest extent Simplify the system architecture of whole amplifier, the up amplification link d of the present embodiment includes one by radio-frequency cable sequential concatenation Up first power amplification switch module d1, upstream radio-frequency signal decay module d2, a up second power amplification switching molding A group d3 and logarithmic detector module d4, a upstream radio-frequency Schottky diode module is parallel with logarithmic detector module d4 both ends D5, up first power amplification switch module d1 input connection retransmitting antenna b, logarithmic detector module d4 output end and upper Row radio frequency Schottky diode module d5 output end passes through a up double operation amplifier module d6 and master controller f phases simultaneously Even, and upstream radio-frequency Schottky diode module d5 connects donor antenna a simultaneously；And descending amplification link c is then included by penetrating A descending first power amplification switch module c1, a descending radio frequency signal attenuation module c2 and one for frequency cable sequential concatenation is descending Second power amplification switch module c3, descending first power amplification switch module c1 input connection donor antenna a, descending the Two power amplifications switch module c3 output end connection retransmitting antenna b simultaneously passes through the downlink radio frequency Schottky two of sequential concatenation simultaneously Pole pipe module c4 and descending double operation amplifier module c5 is connected with downlink radio-frequency signal decay module c2.

In actual application, up amplification link d particular circuit configurations refer to Fig. 2 and Fig. 4 is configured, I.e.：

Up first power amplification switch module d1 mainly by the active biased amplifier U7 of such as AG50 types, such as The electronic component such as the power switch device F3 of SF9083 types and the resistance being engaged, electric capacity is formed；

Upstream radio-frequency signal decay module d2 mainly from such as HSMP-3816 types radio frequency signal attenuation device D2 and with Resistance, the electronic component such as electric capacity of periphery are formed；

Up second power amplification switch module d3 mainly by sequential concatenation such as AG50 types active biased amplifier The power of active biased amplifier U4, such as SF9083 types of power switch device F5, such as AG41 types of U2, such as SF9083 types The power supply component such as the active biased amplifier U1 of derailing switch F1, AG41 type and the resistance of cooperation periphery, electric capacity, inductance Form；

Logarithmic detector module d4 mainly by such as SF9704 type power switch the devices F2 and F4 of sequential concatenation, such as The electronic component such as the logarithmic detector U6 of HMC713MS8E types and the electric capacity of cooperation periphery, resistance is formed；

Upstream radio-frequency Schottky diode module d5 mainly by sequential concatenation such as HMC789 types active biased amplification The electronic component such as the Schottky diode D3 of device U3, HSMS-2850 type and the resistance of cooperation periphery, electric capacity is formed；

Up double operation amplifier module d6 mainly from a LM393D type dual operational amplifier U9 and with periphery resistance, electricity The electronic components such as appearance are formed.

Descending amplification link c particular circuit configurations refer to Fig. 3 and are configured, i.e.,：

Descending first power amplification switch module c1 mainly by the active biased amplifier U16 of such as AG50 types, such as The electronic component such as the power switch device F8 of SF9083 types and the resistance being engaged, electric capacity is formed；；

Downlink radio-frequency signal decay module c2 mainly from such as HSMP-3816 types radio frequency signal attenuation device D9 and with Resistance, the electronic component such as electric capacity of periphery are formed；

Descending second power amplification switch module c3 mainly by sequential concatenation such as AG41 types active biased amplifier The work(of active biased amplifier U19, such as SF9083 types of power switch device F7, such as AG41 types of U20, such as SF9083 types The power supply member such as the active biased amplifier U18 of rate derailing switch F6, AG41 type and the resistance of cooperation periphery, electric capacity, inductance Device is formed；

Downlink radio frequency Schottky diode module c4 mainly by sequential concatenation such as HMC789 types active biased amplification The electronic component such as the Schottky diode D8 of device U17, HSMS-2850 type and the resistance of cooperation periphery, electric capacity is formed；

Descending double operation amplifier module c5 mainly from a LM358 type dual operational amplifier U15 and with periphery resistance, electricity The electronic components such as appearance are formed.

To ensure to carry out switch control to the transmission path of upward signal and downstream signal, the amplifier of the present embodiment also wraps Include for by donor antenna a and upstream radio-frequency Schottky diode module d5 output end and descending first power amplification switching molding Group c1 input be connected and be controlled by master controller f the first synchronous control switch g and for by retransmitting antenna b with it is up The output end that first power amplification switch module d1 input and descending second power amplification switch module c3 is connected and controlled In master controller f the second synchronous control switch h；Wherein, the particular circuit configurations of synchronous control switch refer to Fig. 4 and set Put, i.e.,：Mainly from a K112 types crystal clock oscillator U12 or U11 and with periphery resistance, the electronics member device such as electric capacity Part is formed.

For ensure to greatest extent whole amplifier to signal transacting stability and improve the intelligent effect of amplifier, this The master controller f of embodiment includes the programmable logic device U13 of a such as EPM570T100C5 types, and baseband decoding synchronization module E then includes a baseband decoder chip (it can be as the case may be using the baseband decoder chip of main flow on the market), baseband decoding Chip is connected by a MINI-PCIE connectors U8 with programmable logic device U13.

To avoid amplifier from having a negative impact donor base station A, the donor antenna a and retransmitting antenna b of the present embodiment use up Amount uses narrow beam, the antenna of high-gain；Wherein, donor antenna a is preferably yagi aerial or wall hanging plate antenna, and retransmits day Line b is preferably then whiplike rubber antenna.Thus, the selectivity of donor signal can be not only improved, avoids intervening excessive base station Signal, also it is avoided that interference of the noise caused by up-link to base station signal.

For work that amplifier can be steady in a long-term can be ensured, and it is easy to in-site installation, reduces installation and open dimension The cost of shield, as shown in fig. 6, the amplifier of the present embodiment also include one made of the metal materials such as aluminium sealing shell 1 And at least one piece be packaged in sealing shell 1 for by up amplification link d, descending amplification link c, master controller f and The integrated control panel (not shown) that baseband decoding synchronization module e becomes one, is provided with sealing shell 1 and uses respectively In the antenna terminal 2 for assembling for donor antenna a and retransmitting antenna b and being connected with integrated control panel.Thus, using metal shell not But the sealing protection to amplifier internal circuit board or electronic component can be realized, and makes amplifier that there is good dissipate Hot property；In addition, the rigid and convenient installation offer condition using sealing shell 1 or amplifier.

It is attached for ease of amplifier and civil power to carry out normal signal transmission work, also collects on integrated control panel Cheng Youyi is respectively to up amplifier chain road d, descending amplification link c, master controller f and the electricity of baseband decoding synchronization module c power supplies Source adaptation module k (its particular circuit configurations refers to Fig. 5 and is configured), while it is equiped with one and power supply on sealing shell 1 The power interface 3 (such as DC interfaces) of adaptation module k electrical connections.

In addition, being working condition or abnormality it could be visually observed that amplifier, also set up on sealing shell 1 There are several to be connected with integrated control panel and be controlled by master controller f status indicator lamp 4 (its can particular number and function can be according to It is allocated according to power supply instruction, working condition instruction and fault alarm instruction etc.).

Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, Every equivalent structure made using the utility model specification and accompanying drawing content or equivalent flow conversion, or directly or indirectly fortune Used in other related technical areas, similarly it is included in scope of patent protection of the present utility model.

Claims

A kind of 1. TD-LTE microwave power amplifiers, it is characterised in that：It includes being used to receive the descending letter from donor base station Number donor antenna, for the downstream signal that donor antenna receives to be delivered into baseband decoding synchronization module by master controller The downstream signal returned again to after decoding process to master controller progress signal conversion processing and to master controller output is carried out The descending amplification link of enhanced processing, the downstream signal for descending amplification link to be exported externally conveys and reception comes from simultaneously The retransmitting antenna of the upward signal of communication terminal and the upward signal for retransmitting antenna to be received are defeated by master controller Deliver to after baseband decoding synchronization module carries out decoding process and return again to master controller progress signal conversion processing and to main control The upward signal of device output is amplified the up amplification link of processing, and the donor antenna exports up amplification link upper Row signal is delivered to donor base station.
A kind of 2. TD-LTE microwave power amplifiers as claimed in claim 1, it is characterised in that：The up amplification link bag Include and module, upstream radio-frequency signal decay module, one are switched by up first power amplification of radio-frequency cable sequential concatenation Up second power amplification switch module and a logarithmic detector module, the both ends of the logarithmic detector module are parallel with one and up penetrated Frequency Schottky diode module, the input connection retransmitting antenna of the up first power amplification switch module, the logarithm The output end of detection module and the output end of upstream radio-frequency Schottky diode module pass through a up double operation amplifier moulds simultaneously Group is connected with master controller, and the upstream radio-frequency Schottky diode module connects donor antenna simultaneously；

The descending amplification link includes switching module, once by descending first power amplification of radio-frequency cable sequential concatenation Row radio frequency signal attenuation module and a descending second power amplification switch module, the descending first power amplification switch module Input connects donor antenna, and the output end connection retransmitting antenna of the descending second power amplification switch module simultaneously passes through simultaneously The downlink radio frequency Schottky diode module of sequential concatenation and descending double operation amplifier modules and downlink radio-frequency signal decay module It is connected.
A kind of 3. TD-LTE microwave power amplifiers as claimed in claim 2, it is characterised in that：It also includes being used for alms giver Antenna is connected with the input of the output end of upstream radio-frequency Schottky diode module and descending first power amplification switch module And it is controlled by the first synchronous control switch of master controller and for by retransmitting antenna and up first power amplification switching molding The output end of input and descending second power amplification the switch module of group, which is connected and is controlled by the second of master controller, synchronous to be controlled System switch.
A kind of 4. TD-LTE microwave power amplifiers as claimed in claim 2, it is characterised in that：The master controller includes one Programmable logic device, the baseband decoding synchronization module include a baseband decoder chip, and the baseband decoder chip passes through one MINI-PCIE connectors are connected with programmable logic device.
A kind of 5. TD-LTE microwave power amplifiers as claimed in claim 1, it is characterised in that：The donor antenna is Yagi spark gap Antenna or wall hanging plate antenna, the retransmitting antenna are whiplike rubber antenna.
A kind of 6. TD-LTE microwave power amplifiers as any one of claim 1-5, it is characterised in that：It also includes One made of the metal material sealing shell and at least one piece be packaged in sealing shell for by up amplification link, under The integrated control panel that row amplification link, master controller and baseband decoding synchronization module become one, set on the sealing shell It is equipped with the antenna terminal for being respectively used to assemble and be connected with integrated control panel for donor antenna and retransmitting antenna.
A kind of 7. TD-LTE microwave power amplifiers as claimed in claim 6, it is characterised in that：On the integrated control panel also One is integrated with respectively to the power supply of up amplifier chain road, descending amplification link, master controller and the power supply of baseband decoding synchronization module Adaptation module, a power interface electrically connected with power adaptation module is equiped with the sealing shell.
A kind of 8. TD-LTE microwave power amplifiers as claimed in claim 7, it is characterised in that：Also set on the sealing shell It is equipped with several status indicator lamps for being connected with integrated control panel and being controlled by master controller.