CN209200151U - A kind of anti-interference Active Receiving Antenna of Beidou - Google Patents
A kind of anti-interference Active Receiving Antenna of Beidou Download PDFInfo
- Publication number
- CN209200151U CN209200151U CN201920039338.6U CN201920039338U CN209200151U CN 209200151 U CN209200151 U CN 209200151U CN 201920039338 U CN201920039338 U CN 201920039338U CN 209200151 U CN209200151 U CN 209200151U
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- Prior art keywords
- beidou
- amplifier
- interference
- receiving antenna
- active receiving
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- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a kind of anti-interference Active Receiving Antennas of Beidou, including apparatus main body, and the printed circuit board positioned at apparatus main body；The printed circuit board includes several signal paths；The signal path includes the prime filter, pre-amplifier, rear class filtering device, post-amplifier being successively linked in sequence；The input terminal of the prime filter is connect with antenna hardware interface, and the post-amplifier output end of the signal path end is connected with radio frequency connector.One group of aerial array, including four Beidou antennas and a GPS signal is utilized in the utility model.Interference signal is eliminated using the method for " offseting " in aerial signal channel circuit, four antennas work at the same time, one primary antenna and three auxiliary antennas are completed to offset function, and the interference for being able to solve out-of-band frequency reaches the requirement for meeting user, promote usage experience.
Description
Technical field
The utility model relates to a kind of receiving antenna, in particular to a kind of anti-interference Active Receiving Antenna of Beidou.
Background technique
With the development of science and technology, Beidou industry and wireless telecommunications flourish and widespread adoption is broad masses'
In production and living.Electromagnetic environment even more complex in space, the signal of various frequency ranges can all bring interference to Beidou receiving antenna.
The interference of Beidou frequency range is also more and more.The previous mode for solving interference, which is substantially, is improving Beidou frequency using multiple filter
The Out-of-band rejection of section, and these can only inhibit the interference outside band, for the interference in Beidou frequency range substantially without effect.
The utility model proposes a kind of anti-interference active reception day of Beidou according to enforcement difficulty and engineering experience effect
Line, it is intended to eliminate the interference in Beidou frequency range band, one group of aerial array is utilized, and the method for using " offseting " is come interference
Signal is eliminated, and the anti-interference Active Receiving Antenna of this Beidou is worked at the same time using four antennas, a primary antenna and three auxiliary
Antenna is completed to offset function.
Utility model content
In order to meet above-mentioned requirements, the purpose of this utility model is to provide a kind of anti-interference Active Receiving Antennas of Beidou.
To achieve the goals above, the utility model uses following technical scheme:
A kind of anti-interference Active Receiving Antenna of Beidou, including apparatus main body, and the printed circuit board positioned at apparatus main body；
The printed circuit board includes several signal paths；
The signal path includes that the prime filter being successively linked in sequence, pre-amplifier, rear class filtering device, rear class are put
Big device；
The input terminal of the prime filter is connect with antenna hardware interface, the post-amplifier of the signal path end
Output end is connected with radio frequency connector.
Further technical solution is that the prime filter is bandpass filter, and the rear class filtering device is the filtering of sound table
Device.
Further technical solution is that the pre-amplifier is low-noise amplifier, and the post-amplifier is Raman light
Fiber amplifier.
Further technical solution is that several described signal paths include 4 Beidou signal paths and 1 GPS signal
Channel；
The antenna hardware interface of 4 Beidou signal paths is regular centered on the antenna hardware interface of GPS signal channel
It is arranged in the printed circuit board.
Further technical solution is, the output end and five tunnels in 4 Beidou signal paths and 1 GPS signal channel
The input terminal of radio frequency connector connects.
Further technical solution is that first passage and second channel are respectively provided with prime in 4 Beidou signal paths
Amplifier optimizes circuit；
Wherein the pre-amplifier of first passage uses ASL52D6 model low-noise amplifier.
Further technical solution is that the second channel of 4 Beidou signal paths is put using TQL9092 model low noise
Big device.
Further technical solution is that the signal path further includes rear class filtering device optimization circuit, the rear class filtering device
Take TA1658A model filter.
Compared with the prior art, the utility model has the beneficial effects that: one group of aerial array is utilized in the utility model,
Including four Beidou antennas and a GPS signal.Interference is believed using the method for " offseting " in aerial signal channel circuit
It number eliminates, four antennas work at the same time, and a primary antenna and three auxiliary antennas are completed to offset function, are able to solve with outer frequency
The interference of rate reaches the requirement for meeting user, promotes usage experience.
The utility model is further described in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is a kind of apparatus structure schematic diagram of the anti-interference Active Receiving Antenna of Beidou of the utility model；
Fig. 2 is Fig. 1 structure left view schematic diagram；
Fig. 3 is Fig. 1 structure schematic rear view；
Fig. 4 is a kind of signal path circuitry schematic diagram of the anti-interference Active Receiving Antenna of Beidou of the utility model；
Fig. 5 is the first passage pre-amplifier optimization circuit diagram of the Beidou signal path of Fig. 4 embodiment；
Fig. 6 is the second channel pre-amplifier optimization circuit diagram of the Beidou signal path of Fig. 4 embodiment；
Fig. 7 is the rear class filtering device optimization circuit of Fig. 4 embodiment.
Detailed description of the invention
1 apparatus main body, 2 five road radio frequency connector
3 printed circuit board, 4 Beidou signal path antenna hardware interface
5 GPS signal channel antenna hardware interfaces
Specific embodiment
The utility model provides a kind of anti-interference Active Receiving Antenna of Beidou, and the interference for being able to solve out-of-band frequency reaches
Meet the requirement of user, promotes usage experience.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those skilled in the art are obtained without creative efforts
The every other embodiment obtained, fall within the protection scope of the utility model.
Antenna assembly and signal path circuitry schematic diagram as shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of Beidou are anti-interference
Active Receiving Antenna, including apparatus main body 1, and the printed circuit board 3 positioned at apparatus main body 1；
The printed circuit board 3 includes several signal paths；
The signal path includes that the prime filter being successively linked in sequence, pre-amplifier, rear class filtering device, rear class are put
Big device；
The input terminal of the prime filter is connect with antenna hardware interface ANT, and the rear class of the signal path end is put
Big device output end is connected with radio frequency connector.
Specifically, the antenna hardware interface ANT includes Beidou interface and GPS interface, embodiment as shown in Figure 4
In, the Beidou interface is marked respectively with B3-RF-IN1, B3-RF-IN2, B3-RF-IN3, B3-RF-IN4, the GPS
Interface is marked with GPS-RF-IN, it may be assumed that in the present embodiment, Beidou interface is 4, and GPS interface is 1.
In embodiment as shown in Figure 4, the prime filter is bandpass filter BFP, and the rear class filtering device is sound
Table filter SAW.
In embodiment as shown in Figure 4, the pre-amplifier is low-noise amplifier LNA, and the post-amplifier is
Raman Fiber Amplifier RFA.
Preferably, several described signal paths include 4 Beidou signal paths and 1 GPS signal channel.It is wherein northern
The signal path that struggles against and GPS signal channel are connected with corresponding signaling interface respectively.
In embodiment as shown in Figure 3,4 Beidous signal path antenna hardware interface 4 is with GPS signal channel antenna
Hardware interface 5 is center regular array in the printed circuit board 3.
In embodiment as shown in Figure 2, the output end and five in 4 Beidou signal paths and 1 GPS signal channel
The input terminal of road radio frequency connector 2 connects.Wherein, the output end of Beidou signal path is in Fig. 4 respectively with RF-OUT1, RF-
OUT2, RF-OUT3, RF-OUT4 label, the output end in GPS signal channel are marked with GPS-RF-OUT.
In embodiment as shown in figs.5 and 6, first passage and second channel point in 4 Beidou signal paths
It Ju You not pre-amplifier optimization circuit；
In the first passage pre-amplifier optimization circuit of Beidou signal path as shown in Figure 5, wherein first passage
Pre-amplifier uses ASL52D6 model low-noise amplifier.Specifically, the input terminal and GND pin of the pre-amplifier
Sequential series surface mount packages capacitor C5 and inductance L3 between (left side middle position pin 2), in inductance L3 and pre-amplifier
Node between GND pin (left side middle position pin 2) is connected with inductance L1, and the other end and ground capacity C3 of inductance L1 is gone here and there
Connection.In addition, the IN pin connection of node and pre-amplifier between inductance L1 and capacitor C3.It is corresponding, pre-amplifier
GND pin (right side middle position pin 5) is equally connect by series inductance L4 and capacitor C6 with next stage electric elements, electricity
Other electric elements for connecting of node between sense L4 and pre-amplifier GND pin (right side middle position pin 5) are specifically such as
Shown in figure.
In embodiment as shown in FIG. 6, the second channel of 4 Beidou signal paths uses TQL9092 model low noise
Acoustic amplifier.Wherein, the electronic circuitry connection relationship for optimizing circuit is as shown in the figure.
In embodiment as shown in Figure 7, the signal path further includes rear class filtering device optimization circuit, the rear class filtering
Device takes TA1658A model filter.Specifically, the node between the input terminal and IN pin of the rear class filtering device is connected with
The other end of inductance L7, inductance L7 are grounded.Node between the OUT pin and output end of the rear class filtering device is connected with inductance
The other end of L6, inductance L6 are grounded.
In conclusion one group of aerial array, including four Beidou antennas and a GPS signal is utilized in the utility model.
Interference signal is eliminated using the method for " offseting " in aerial signal channel circuit, four antennas work at the same time, a master
Antenna and three auxiliary antennas are completed to offset function, and the interference for being able to solve out-of-band frequency reaches the requirement for meeting user,
Promote usage experience.
It will be apparent to those skilled in the art that it is various that other can be made according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation should belong to the protection model of the utility model claims
Within enclosing.
Claims (8)
1. a kind of anti-interference Active Receiving Antenna of Beidou, which is characterized in that including apparatus main body, and positioned at the print of apparatus main body
Circuit board processed；
The printed circuit board includes several signal paths；
The signal path includes the prime filter being successively linked in sequence, pre-amplifier, rear class filtering device, rear class amplification
Device；
The input terminal of the prime filter is connect with antenna hardware interface, the post-amplifier output of the signal path end
End is connected with radio frequency connector.
2. the anti-interference Active Receiving Antenna of a kind of Beidou according to claim 1, which is characterized in that the prime filter
For bandpass filter, the rear class filtering device is SAW filter.
3. the anti-interference Active Receiving Antenna of a kind of Beidou according to claim 1, which is characterized in that the pre-amplifier
For low-noise amplifier, the post-amplifier is Raman Fiber Amplifier.
4. the anti-interference Active Receiving Antenna of a kind of Beidou according to claim 1, which is characterized in that several described signals
Channel includes 4 Beidou signal paths and 1 GPS signal channel；
The antenna hardware interface of 4 Beidou signal paths is using GPS signal channel antenna hardware interface as center regular array
In the printed circuit board.
5. the anti-interference Active Receiving Antenna of a kind of Beidou according to claim 4, which is characterized in that 4 Beidous letter
The output end in number channel and 1 GPS signal channel is connect with the input terminal of five road radio frequency connectors.
6. the anti-interference Active Receiving Antenna of a kind of Beidou according to claim 4, which is characterized in that 4 Beidous letter
First passage and second channel are respectively provided with pre-amplifier optimization circuit in number channel；
Wherein the pre-amplifier of first passage uses ASL52D6 model low-noise amplifier.
7. the anti-interference Active Receiving Antenna of a kind of Beidou according to claim 6, which is characterized in that 4 Beidous letter
The second channel in number channel uses TQL9092 model low-noise amplifier.
8. the anti-interference Active Receiving Antenna of a kind of Beidou according to claim 1, which is characterized in that the signal path is also
Optimize circuit including rear class filtering device, the rear class filtering device takes TA1658A model filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039338.6U CN209200151U (en) | 2019-01-10 | 2019-01-10 | A kind of anti-interference Active Receiving Antenna of Beidou |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039338.6U CN209200151U (en) | 2019-01-10 | 2019-01-10 | A kind of anti-interference Active Receiving Antenna of Beidou |
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| Publication Number | Publication Date |
|---|---|
| CN209200151U true CN209200151U (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920039338.6U Active CN209200151U (en) | 2019-01-10 | 2019-01-10 | A kind of anti-interference Active Receiving Antenna of Beidou |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865738A (en) * | 2021-01-04 | 2021-05-28 | 诺思(天津)微系统有限责任公司 | Radio frequency receiving module, method for improving performance of radio frequency receiving module and communication equipment |
-
2019
- 2019-01-10 CN CN201920039338.6U patent/CN209200151U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865738A (en) * | 2021-01-04 | 2021-05-28 | 诺思(天津)微系统有限责任公司 | Radio frequency receiving module, method for improving performance of radio frequency receiving module and communication equipment |
| CN112865738B (en) * | 2021-01-04 | 2023-04-07 | 诺思(天津)微系统有限责任公司 | Radio frequency receiving module, method for improving performance of radio frequency receiving module and communication equipment |
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