Five-in eight-out radio frequency filtering assembly

Abstract

The utility model relates to the technical field of wireless communication, in particular to a five-in eight-out radio frequency filtering assembly, which comprises a shell main body, the shell main body comprises an upper shell and a lower shell, and the lower shell and the upper shell are integrally formed; the five-input eight-output radio frequency filtering assembly comprises an A-path L-band receiving channel, a B-path L-band receiving channel, a C-path L-band receiving channel, a D-path L-band receiving channel and an E-path L-band receiving channel, and the A-path L-band receiving channel and the B-path L-band receiving channel output independently. The C-path L-waveband receiving channel, the D-path L-waveband receiving channel and the E-path L-waveband receiving channel output power in two paths, so that eight paths of output signals are realized; in this way, the technical problems that in the prior art, a radio frequency receiving assembly is not high in space utilization rate and inconvenient to install, and some applications with harsh requirements for space size and weight cannot meet the requirements are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wireless communication technical field especially relates to a five-in-eight out radiation frequency filter assembly. BACKGROUND

[0002] The radio frequency receiving assembly is responsible for receiving radio frequency signals from the transmitting end and converting them into baseband signals for subsequent processing. This process usually includes steps such as signal reception, amplification, filtering, frequency conversion, and demodulation. In order to achieve these functions, the radio frequency receiving assembly is often composed of multiple receiving front-end components, such as antennas, low-noise amplifiers (LNA), filters, mixers, demodulators, etc. These components work together to ensure that radio frequency signals can be efficiently and accurately received and processed.

[0003] However, the existing radio frequency receiving assembly is often composed of multiple receiving front-end components, which has the disadvantage of low space utilization and inconvenient installation, and cannot meet the requirements of some applications that are strict in space volume and weight. SUMMARY

[0004] The utility model aims at providing a kind of five-in-eight out radiation frequency filter assembly, to solve the technical problems such as the low space utilization of radio frequency receiving assembly in prior art, inconvenient installation, and cannot meet the requirements of some applications that are strict in space volume and weight.

[0005] To achieve the above-mentioned purpose, the utility model adopts a kind of five-in-eight out radiation frequency filter assembly, including shell main body, the shell main body includes upper shell and lower shell, the lower shell is integrally formed with the upper shell;

[0006] A route L waveband receiving channel, B route L waveband receiving channel, C route L waveband receiving channel, D route L waveband receiving channel and E route L waveband receiving channel are arranged in the shell main body.

[0007] Among them, the A route L waveband receiving channel includes input port IN1, first low-noise amplifier, first filter group, first digital attenuator, first amplifier, first adder, first power divider, first noise source, first low-pass filter and output port OUT1, the first low-noise amplifier is connected with the input port IN1 and the first filter group, the first digital attenuator is arranged between the first filter group and the first amplifier, the first adder is connected with the first amplifier, the first low-pass filter is arranged between the first adder and the output port OUT1, the first noise source is connected with the first adder, and the first power divider is connected with the first noise source.

[0008] The B-channel L-band receiving path comprises an input port IN2, a second low-noise amplifier, a second filter group, a second digital attenuator, a second amplifier, a second adder, a second power divider, a second noise source, a second low-pass filter and an output port OUT2, the second low-noise amplifier is connected with the input port IN2 and the second filter group, the second digital attenuator is arranged between the second filter group and the second amplifier, the second adder is connected with the second amplifier, the second low-pass filter is arranged between the second adder and the output port OUT2, the second noise source is connected with the second adder, and the second power divider is connected with the second noise source.

[0009] The C-channel L-band receiving path comprises an input port IN3, a third low-noise amplifier, a third digital attenuator, a 1-to-2 power divider A, a third filter group, a third amplifier, a third adder, a third noise source, a third power divider, a third low-pass filter, an output port OUT3, a 1070-1270MHz filter A, a fourth amplifier, a fourth adder, a fourth noise source, a fourth power divider, a fourth low-pass filter and an output port OUT4, the third low-noise amplifier is connected with the input port IN3 and the third digital attenuator, the 1-to-2 power divider A is connected with the third digital attenuator, the third filter group and the 1070-1270MHz filter A are connected with the 1-to-2 power divider A, the third amplifier is connected with the third filter group, the third adder is connected with the third amplifier, the third low-pass filter is arranged between the third adder and the output port OUT3, the third noise source is connected with the third adder, and the third power divider is connected with the third noise source.

[0010] The fourth amplifier is connected with the 1070-1270MHz filter A, the fourth adder is connected with the fourth amplifier, the fourth low-pass filter is arranged between the fourth adder and the output port OUT4, the fourth noise source is connected with the fourth adder, and the fourth power divider is connected with the fourth noise source.

[0011] The D road L wave band receiving channel includes input port IN4, fourth low noise amplifier, fourth numerical control attenuator, one-to-two power divider B, fourth filter group, fifth amplifier, fifth adder, fifth noise source, fifth power divider, fifth low pass filter, output port OUT5, 1070-1270MHz filter A, sixth amplifier, sixth adder, sixth noise source, sixth power divider, sixth low pass filter and output port OUT6, the fourth low noise amplifier is connected with the input port IN4 and the fourth numerical control attenuator, the one-to-two power divider B is connected with the fourth numerical control attenuator, the fourth filter group and the 1070-1270MHz filter B are connected with the one-to-two power divider B, the fifth amplifier is connected with the fourth filter group, the fifth adder is connected with the fifth amplifier, the fifth low pass filter is arranged between the fifth adder and the output port OUT5, the fifth noise source is connected with the fifth adder, and the fifth power divider is connected with the fifth noise source.

[0012] The sixth amplifier is connected with the 1070-1270MHz filter B, the sixth adder is connected with the sixth amplifier, the sixth low pass filter is arranged between the sixth adder and the output port OUT6, the sixth noise source is connected with the sixth adder, and the sixth power divider is connected with the sixth noise source.

[0013] The E road L wave band receiving channel includes input port IN5, fifth low noise amplifier, fifth numerical control attenuator, one-to-two power divider C, fifth filter group, seventh amplifier, seventh adder, seventh noise source, seventh power divider, seventh low pass filter, output port OUT7, 1070-1270MHz filter C, eighth amplifier, eighth adder, eighth noise source, eighth power divider, eighth low pass filter and output port OUT8, the fifth low noise amplifier is connected with the input port IN5 and the fifth numerical control attenuator, the one-to-two power divider C is connected with the fifth numerical control attenuator, the fifth filter group and the 1070-1270MHz filter C are connected with the one-to-two power divider C, the seventh amplifier is connected with the fifth filter group, the seventh adder is connected with the seventh amplifier, the seventh low pass filter is arranged between the seventh adder and the output port OUT7, the seventh noise source is connected with the seventh adder, and the seventh power divider is connected with the seventh noise source.

[0014] The eighth amplifier is connected with the 1070-1270MHz filter B, the eighth adder is connected with the eighth amplifier, the eighth low pass filter is arranged between the eighth adder and the output port OUT8, the eighth noise source is connected with the eighth adder, and the eighth power divider is connected with the eighth noise source.

[0015] The utility model discloses a five input eight output radio frequency filter assembly, the five input eight output radio frequency filter assembly contains the A road L waveband receiving channel, the B road L waveband receiving channel, the C road L waveband receiving channel, the D road L waveband receiving channel and the E road L waveband receiving channel, the A road L waveband receiving channel and the B road L waveband receiving channel two each channel independent output, the C road L waveband receiving channel, the D road L waveband receiving channel and the E road L waveband receiving channel three way output power division two way output, realize eight way output signal, the receiving channel is filtered and is amplified to the radio frequency signal received from the antenna and is exported to the signal processing unit, the channel is independent to each other, and the channel frequency is 960MHz 1270MHz, and the receiving channel gain is 34dB plus or minus 1.5dB (low noise amplifier open mode), simultaneously, the A road L waveband receiving channel, the B road L waveband receiving channel, the C road L waveband receiving channel, the D road L waveband receiving channel and the E road L waveband receiving channel have two kinds of modes of straight through and low noise amplifier, have 30dB's gain adjustable mode, and the channel is divided into two sections according to frequency 960 1150MHz and 1070 1270MHz, and the isolation requirement between channels is greater than or equal to 65dB, in actual use, each way can carry out noise scrambling, and the frequency range DC 30MHz has the digital control attenuation 30dB adjustable function, the utility model realizes small size, high density, multi-channel high performance filter assembly, and in this way, the technical problem of the space utilization rate of the radio frequency receiving assembly in the prior art is not high, and installation is inconvenient, and some applications of strict space volume and weight requirements cannot be satisfied. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0017] Figure 1 It is the structure schematic diagram of the five input eight output radio frequency filter assembly of the utility model.

[0018] Figure 2 It is the front view of the five input eight output radio frequency filter assembly of the utility model.

[0019] Figure 3 is the principle diagram of the A route L wave band receiving channel of the utility model.

[0020] Figure 4 is the principle diagram of the B route L wave band receiving channel of the utility model.

[0021] Figure 5 is the principle diagram of the C route L wave band receiving channel of the utility model.

[0022] Figure 6 is the principle diagram of the D route L wave band receiving channel of the utility model.

[0023] Figure 7 is the principle diagram of the E route L wave band receiving channel of the utility model.

[0024] 101 - upper shell, 102 - lower shell. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and can not be understood as the limitation of the utility model.

[0026] Please refer to Figures 1-7 , wherein Figure 1 is the structure schematic view of the five-in and eight-out radio frequency filter assembly of the utility model. Figure 2 is the front view of the five-in and eight-out radio frequency filter assembly of the utility model. Figure 3 is the principle diagram of the A route L wave band receiving channel of the utility model. Figure 4 is the principle diagram of the B route L wave band receiving channel of the utility model. Figure 5 is the principle diagram of the C route L wave band receiving channel of the utility model. Figure 6 is the principle diagram of the D route L wave band receiving channel of the utility model. Figure 7 is the principle diagram of the E route L wave band receiving channel of the utility model.

[0027] The utility model provides a kind of five-in and eight-out radio frequency filter assembly, including shell main body, the shell main body includes upper shell 101 and lower shell 102, the lower shell 102 is integrally formed with the upper shell 101, A route L wave band receiving channel, B route L wave band receiving channel, C route L wave band receiving channel, D route L wave band receiving channel and E route L wave band receiving channel are provided in the shell main body.

[0028] The A-path L-band receiving channel comprises an input port IN1, a first low-noise amplifier, a first filter group, a first digital attenuator, a first amplifier, a first adder, a first power divider, a first noise source, a first low-pass filter and an output port OUT1, the first low-noise amplifier is connected with the input port IN1 and the first filter group, the first digital attenuator is arranged between the first filter group and the first amplifier, the first adder is connected with the first amplifier, the first low-pass filter is arranged between the first adder and the output port OUT1, the first noise source is connected with the first adder, and the first power divider is connected with the first noise source.

[0029] The B-path L-band receiving channel comprises an input port IN2, a second low-noise amplifier, a second filter group, a second digital attenuator, a second amplifier, a second adder, a second power divider, a second noise source, a second low-pass filter and an output port OUT2, the second low-noise amplifier is connected with the input port IN2 and the second filter group, the second digital attenuator is arranged between the second filter group and the second amplifier, the second adder is connected with the second amplifier, the second low-pass filter is arranged between the second adder and the output port OUT2, the second noise source is connected with the second adder, and the second power divider is connected with the second noise source.

[0030] The C-path L-band receiving channel comprises an input port IN3, a third low-noise amplifier, a third digital attenuator, a one-to-two power divider A, a third filter group, a third amplifier, a third adder, a third noise source, a third power divider, a third low-pass filter, an output port OUT3, a 1070-1270MHz filter A, a fourth amplifier, a fourth adder, a fourth noise source, a fourth power divider, a fourth low-pass filter and an output port OUT4, the third low-noise amplifier is connected with the input port IN3 and the third digital attenuator, the one-to-two power divider A is connected with the third digital attenuator, the third filter group and the 1070-1270MHz filter A are connected with the one-to-two power divider A, the third amplifier is connected with the third filter group, the third adder is connected with the third amplifier, the third low-pass filter is arranged between the third adder and the output port OUT3, the third noise source is connected with the third adder, and the third power divider is connected with the third noise source.

[0031] The fourth amplifier is connected with the 1070-1270MHz filter A, the fourth adder is connected with the fourth amplifier, the fourth low pass filter is arranged between the fourth adder and the output port OUT4, the fourth noise source is connected with the fourth adder, and the fourth power divider is connected with the fourth noise source.

[0032] The D-channel L-band receiving channel comprises an input port IN4, a fourth low noise amplifier, a fourth digital controlled attenuator, a one-to-two power divider B, a fourth filter group, a fifth amplifier, a fifth adder, a fifth noise source, a fifth power divider, a fifth low pass filter, an output port OUT5, a 1070-1270MHz filter A, a sixth amplifier, a sixth adder, a sixth noise source, a sixth power divider, a sixth low pass filter and an output port OUT6, the fourth low noise amplifier is connected with the input port IN4 and the fourth digital controlled attenuator, the one-to-two power divider B is connected with the fourth digital controlled attenuator, the fourth filter group and the 1070-1270MHz filter B are connected with the one-to-two power divider B, the fifth amplifier is connected with the fourth filter group, the fifth adder is connected with the fifth amplifier, the fifth low pass filter is arranged between the fifth adder and the output port OUT5, the fifth noise source is connected with the fifth adder, and the fifth power divider is connected with the fifth noise source.

[0033] The sixth amplifier is connected with the 1070-1270MHz filter B, the sixth adder is connected with the sixth amplifier, the sixth low pass filter is arranged between the sixth adder and the output port OUT6, the sixth noise source is connected with the sixth adder, and the sixth power divider is connected with the sixth noise source.

[0034] The E route L wave band receiving channel includes an input port IN5, a fifth low noise amplifier, a fifth digital control attenuator, a one-to-two power divider C, a fifth filter group, a seventh amplifier, a seventh adder, a seventh noise source, a seventh power divider, a seventh low pass filter, an output port OUT7, a 1070-1270MHz filter C, an eighth amplifier, an eighth adder, an eighth noise source, an eighth power divider, an eighth low pass filter and an output port OUT8, the fifth low noise amplifier is connected with the input port IN5 and the fifth digital control attenuator, the one-to-two power divider C is connected with the fifth digital control attenuator, the fifth filter group and the 1070-1270MHz filter C are connected with the one-to-two power divider C, the seventh amplifier is connected with the fifth filter group, the seventh adder is connected with the seventh amplifier, the seventh low pass filter is arranged between the seventh adder and the output port OUT7, the seventh noise source is connected with the seventh adder, and the seventh power divider is connected with the seventh noise source;

[0035] The eighth amplifier is connected with the 1070-1270MHz filter B, the eighth adder is connected with the eighth amplifier, the eighth low pass filter is arranged between the eighth adder and the output port OUT8, the eighth noise source is connected with the eighth adder, and the eighth power divider is connected with the eighth noise source.

[0036] For the specific embodiment, the five-in-eight radio frequency filter assembly includes the A route L band receiving channel, the B route L band receiving channel, the C route L band receiving channel, the D route L band receiving channel and the E route L band receiving channel, the A route L band receiving channel and the B route L band receiving channel are independently output, the C route L band receiving channel, the D route L band receiving channel and the E route L band receiving channel are output in two ways, realizing eight-way output signal; the receiving channel filters and amplifies the radio frequency signal received from the antenna and outputs to the signal processing unit; the channels are independent of each other; and the channel frequency is 960MHz-1270MHz, the receiving channel gain is 34dB±1.5dB (low noise amplifier open mode), at the same time, the A route L band receiving channel, the B route L band receiving channel, the C route L band receiving channel, the D route L band receiving channel and the E route L band receiving channel have two modes of straight-through and low noise amplifier, have a gain adjustable mode of 30dB, the channel is divided into two sections according to the frequency of 960-1150MHz and 1070-1270MHz, the isolation between channels is required to be ≥65dB, in actual use, each channel can be noise scrambled, the frequency range is DC-30MHz, and the digital control attenuation 30dB adjustable function is provided, the utility model realizes small size, high density, multi-channel high performance filter assembly, in this way, the technical problems that the space utilization rate of the radio frequency receiving assembly in the prior art is not high, installation is inconvenient, and some applications with strict requirements on space volume and weight cannot be met are solved.

[0037] Wherein, in specific use, the A route L band receiving channel, the B route L band receiving channel, the C route L band receiving channel, the D route L band receiving channel and the E route L band receiving channel select the amplified straight-through mode, then filter and segment, digitally control attenuation gain adjustable, amplify and superimpose white noise, and finally output after low-pass filtering.

[0038] Secondly, the 960-1520MHz signal input from the radio frequency is switched by a switch, and the straight-through or low noise amplification mode is selected for output.

[0039] At the same time, in specific use, the A route L band receiving channel, the B route L band receiving channel, the C route L band receiving channel, the D route L band receiving channel and the E route L band receiving channel are segmented and filtered and selected for output in the 960-1150MHz and 1070-1270MHz segments.

[0040] The utility model discloses a kind of five-in eight-out radio frequency filter assemblies, the five-in eight-out radio frequency filter assemblies include the A road L waveband receiving channel, the B road L waveband receiving channel, the C road L waveband receiving channel, the D road L waveband receiving channel and the E road L waveband receiving channel, the A road L waveband receiving channel and the B road L waveband receiving channel two each channel independent output, the C road L waveband receiving channel, the D road L waveband receiving channel and the E road L waveband receiving channel three-way output power division two-way output, realize eight-way output signal;Receiving channel is received from antenna radio frequency signal and is filtered and amplified and then output to signal processing unit;Channel is independent of each other between;And channel frequency is 960MHz~1270MHz, receiving channel gain 34dB±1.5dB (low noise amplifier open mode), simultaneously, the A road L waveband receiving channel, the B road L waveband receiving channel, the C road L waveband receiving channel, the D road L waveband receiving channel and the E road L waveband receiving channel have two modes of straight-through and low noise amplifier, with 30dB gain adjustable mode, channel is divided into two sections according to frequency 960~1150MHz and 1070~1270MHz, the isolation requirement between channels is ≥65dB, when actually used, each way can be noise scrambling, frequency range DC~30MHz, simultaneously with digital control attenuation 30dB adjustable function, the utility model realizes small size, high density, multi-channel high-performance filter assembly, in this way solve the radio frequency receiving assembly space utilization rate not high in prior art, inconvenient to install, for some space volume, weight requirement harsh application cannot satisfy technical problem.

[0041] The above disclosed is only a preferred embodiment of the utility model, of course, cannot be limited by this to the scope of the utility model, and the person skilled in the art can understand that the above-mentioned embodiment is implemented all or part of process, and equivalent change is made according to the utility model claim, still belongs to the range covered by the utility model.

Claims

1. A five-input, eight-output radio frequency filter component, characterized in that, The shell body includes an upper shell and a lower shell, wherein the lower shell is integrally formed with the upper shell; The housing body is equipped with an A-channel L-band receiving channel, a B-channel L-band receiving channel, a C-channel L-band receiving channel, a D-channel L-band receiving channel, and an E-channel L-band receiving channel.

2. The five-input, eight-output RF filter component as described in claim 1, characterized in that, The A-channel L-band receiving channel includes an input port IN1, a first low-noise amplifier, a first filter bank, a first digitally controlled attenuator, a first amplifier, a first adder, a first power divider, a first noise source, a first low-pass filter, and an output port OUT1. The first low-noise amplifier is connected to both the input port IN1 and the first filter bank. The first digitally controlled attenuator is located between the first filter bank and the first amplifier. The first adder is connected to the first amplifier. The first low-pass filter is located between the first adder and the output port OUT1. The first noise source is connected to the first adder, and the first power divider is connected to the first noise source.

3. The five-input, eight-output RF filter component as described in claim 2, characterized in that, The B-channel L-band receiving channel includes an input port IN2, a second low-noise amplifier, a second filter bank, a second digitally controlled attenuator, a second amplifier, a second adder, a second power divider, a second noise source, a second low-pass filter, and an output port OUT2. The second low-noise amplifier is connected to both the input port IN2 and the second filter bank. The second digitally controlled attenuator is located between the second filter bank and the second amplifier. The second adder is connected to the second amplifier. The second low-pass filter is located between the second adder and the output port OUT2. The second noise source is connected to the second adder, and the second power divider is connected to the second noise source.

4. The five-input, eight-output RF filter component as described in claim 3, characterized in that, The C-channel L-band receiving channel includes an input port IN3, a third low-noise amplifier, a third digitally controlled attenuator, a 1-to-2 power divider A, a third filter bank, a third amplifier, a third adder, a third noise source, a third power divider, a third low-pass filter, an output port OUT3, a 1070-1270MHz filter A, a fourth amplifier, a fourth adder, a fourth noise source, a fourth power divider, a fourth low-pass filter, and an output port OUT4. The third low-noise amplifier is connected to both the input port IN3 and the third digitally controlled attenuator. The 1-to-2 power divider A is connected to the third digitally controlled attenuator. The third filter bank and the 1070-1270MHz filter A are both connected to the 1-to-2 power divider A. The third amplifier is connected to the third filter bank. The third adder is connected to the third amplifier. The third low-pass filter is located between the third adder and the output port OUT3. The third noise source is connected to the third adder. The third power divider is connected to the third noise source. The fourth amplifier is connected to the 1070-1270MHz filter A, the fourth adder is connected to the fourth amplifier, the fourth low-pass filter is disposed between the fourth adder and the output port OUT4, the fourth noise source is connected to the fourth adder, and the fourth power divider is connected to the fourth noise source.

5. The five-input, eight-output RF filter component as described in claim 4, characterized in that, The D-channel L-band receiving channel includes an input port IN4, a fourth low-noise amplifier, a fourth digitally controlled attenuator, a 1-to-2 power divider B, a fourth filter bank, a fifth amplifier, a fifth adder, a fifth noise source, a fifth power divider, a fifth low-pass filter, an output port OUT5, a 1070-1270MHz filter A, a sixth amplifier, a sixth adder, a sixth noise source, a sixth power divider, a sixth low-pass filter, and an output port OUT6. The fourth low-noise amplifier is connected to both the input port IN4 and the fourth digitally controlled attenuator. The 1-to-2 power divider B is connected to the fourth digitally controlled attenuator. The fourth filter bank and the 1070-1270MHz filter B are both connected to the 1-to-2 power divider B. The fifth amplifier is connected to the fourth filter bank. The fifth adder is connected to the fifth amplifier. The fifth low-pass filter is located between the fifth adder and the output port OUT5. The fifth noise source is connected to the fifth adder, and the fifth power divider is connected to the fifth noise source. The sixth amplifier is connected to the 1070-1270MHz filter B, the sixth adder is connected to the sixth amplifier, the sixth low-pass filter is disposed between the sixth adder and the output port OUT6, the sixth noise source is connected to the sixth adder, and the sixth power divider is connected to the sixth noise source.

6. The five-input, eight-output RF filter component as described in claim 5, characterized in that, The E-channel L-band receiving channel includes an input port IN5, a fifth low-noise amplifier, a fifth digitally controlled attenuator, a 1-to-2 power divider C, a fifth filter bank, a seventh amplifier, a seventh adder, a seventh noise source, a seventh power divider, a seventh low-pass filter, an output port OUT7, a 1070-1270MHz filter C, an eighth amplifier, an eighth adder, an eighth noise source, an eighth power divider, an eighth low-pass filter, and an output port OUT8. The fifth low-noise amplifier is connected to both the input port IN5 and the fifth digitally controlled attenuator. The 1-to-2 power divider C is connected to the fifth digitally controlled attenuator. The fifth filter bank and the 1070-1270MHz filter C are both connected to the 1-to-2 power divider C. The seventh amplifier is connected to the fifth filter bank. The seventh adder is connected to the seventh amplifier. The seventh low-pass filter is located between the seventh adder and the output port OUT7. The seventh noise source is connected to the seventh adder, and the seventh power divider is connected to the seventh noise source. The eighth amplifier is connected to the 1070-1270MHz filter B, the eighth adder is connected to the eighth amplifier, the eighth low-pass filter is disposed between the eighth adder and the output port OUT8, the eighth noise source is connected to the eighth adder, and the eighth power divider is connected to the eighth noise source.

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