CN208125927U - A kind of GPS navigation antenna - Google Patents
A kind of GPS navigation antenna Download PDFInfo
- Publication number
- CN208125927U CN208125927U CN201820209808.4U CN201820209808U CN208125927U CN 208125927 U CN208125927 U CN 208125927U CN 201820209808 U CN201820209808 U CN 201820209808U CN 208125927 U CN208125927 U CN 208125927U
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- CN
- China
- Prior art keywords
- main body
- fixedly connected
- gps
- antenna
- signal processing
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Abstract
The utility model discloses a kind of GPS navigation antennas,Including apparatus main body,Described device lower body is provided with constant transmissions bar,And the constant transmissions bar is fixedly connected with apparatus main body,Constant transmissions bar lower end is provided with installation firm banking,And the installation firm banking is fixedly connected with constant transmissions bar,The installation firm banking right end is provided with cable connector,And the cable connector is fixedly connected with constant transmissions bar,Described device main body upper end is provided with ceramic antenna,And the ceramic antenna is fixedly connected with apparatus main body,This kind of GPS navigation antenna,Structure design is more reasonable,Function is more perfect,This kind of GPS navigation antenna passes through setting automatic growth control three-level frequency mixer,Clock buffer,Low-noise amplifier and bandpass filter,The signal received is amplified,Filtering,Frequency integration,So that signal frequency is very high and channel width is very narrow,Directly filter out required channel,It ensure that the stability and accuracy of signal.
Description
Technical field
The utility model relates to GPS device field, specially a kind of GPS navigation antenna.
Background technique
GPS is exactly the terminal for being positioned or being navigated by receiving satellite-signal, and day must just be used by receiving signal
Line, the effect of GPS antenna are that be transformed into receiver electronic device ingestible for the electromagnetic wave energy of the radio signal for carrying out satellite
The size and shape of the electric current of application, antenna is particularly significant, because these features determine that antenna can obtain faint GPS signal
Ability, GPS satellite signal is divided into L1 and L2, and wherein L1 is open civil signal, and signal is Circular Polarisation, is belonged to weaker
Signal, with present technology, the effect of vertical polarization is less than Circular Polarisation, therefore in addition to special circumstances, GPS antenna all can
Using Circular Polarisation and linear polarization, external GPS is active antenna, and analogy Vasco da Gama GPS external antenna substantially just belongs to
In active antenna, and passive antenna is just free from LNA amplifier, only antenna body.
But existing to be used for GPS navigation antenna, structure is complicated, and signal gain modulability is poor, existing GPS navigation antenna
Can't 100% positioning, it sometimes appear that positioning is inaccurate or the case where can not position in special region and environment, causes
Marine complex environment situation can not be timely reacted, while may also lead to the accurate position that land command centre loses ship
It sets, in addition there are also very big rooms for improvement for the sensitivity of existing GPS navigation antenna and noise coefficient etc..
So how to design a kind of GPS navigation antenna, becoming us will currently be solved the problems, such as.
Utility model content
The purpose of this utility model is to provide a kind of GPS navigation antennas, to solve the structure that above-mentioned background technique proposes
The problems such as complexity, signal gain modulability is poor, and positioning is not accurate enough, and sensitivity and noise coefficient are not excellent enough.
To achieve the above object, the utility model provides the following technical solutions：A kind of GPS navigation antenna, including device master
Body, described device lower body is provided with constant transmissions bar, and the constant transmissions bar is fixedly connected with apparatus main body, described solid
Determine transmission pole lower end and be provided with installation firm banking, and the installation firm banking is fixedly connected with constant transmissions bar, the peace
Dress firm banking right end is provided with cable connector, and the cable connector is fixedly connected with constant transmissions bar, described device main body
Upper end is provided with ceramic antenna, and the ceramic antenna is fixedly connected with apparatus main body, and the ceramic antenna upper end is provided with letter
Number receive conductor, and the signal receive conductor connect with ceramic antenna telecommunications, described device body front end is provided with signal and refers to
Show lamp, and signal lamp insertion is arranged on apparatus main body, described device body interior upper end is provided with low noise and puts
Big device, and the low-noise amplifier is fixedly connected with apparatus main body, is provided on the left of the low-noise amplifier lower end automatic
Gain controls three-level frequency mixer, and the automatic growth control three-level frequency mixer is fixedly connected with apparatus main body, the automatic increasing
Benefit control three-level frequency mixer right end is provided with GPS baseband digital signal processing unit, and the GPS baseband digital signal is handled
Unit is connect with automatic growth control three-level frequency mixer telecommunications, and the GPS baseband digital signal processing unit right end is provided with interior
Portion's digital sampler, and the internal digital sampler is connect with GPS baseband digital signal processing unit telecommunications, the GPS base
Band digital signal processing unit lower end is provided with clock buffer, and the clock buffer and GPS baseband digital signal are handled
The connection of unit telecommunications, the ceramic antenna inner upper end are provided with ceramic dielectric substrate, and institute's ceramic dielectric substrate and ceramic day
Line is fixedly connected, and the ceramic dielectric substrate lower end is provided with bandpass filter, and the bandpass filter and low noise amplification
The connection of device telecommunications.
Further, the low-noise amplifier front end is provided with demodulator, and the demodulator is embedding is set on low noise
On acoustic amplifier.
Further, the GPS baseband digital signal processing unit upper end is provided with CXD2932 circuit integration plate, and institute
The insertion of CXD2932 circuit integration plate is stated to be arranged on GPS baseband digital signal processing unit.
Further, internal digital sampler front end is provided with gsm module, and gsm module insertion setting exists
On internal digital sampler.
Further, the clock buffer lower end is provided with local oscillator synthesizer, and the local oscillator synthesizer and clock are slow
Rush device electric connection.
Further, the ceramic antenna inner hub location is provided with frequency conversion IC, and the frequency conversion IC exists through setting
In ceramic antenna.
Compared with prior art, the utility model has the beneficial effects that：This kind of GPS navigation antenna, structure design more adduction
Reason, function is more perfect, this kind of GPS navigation antenna passes through setting automatic growth control three-level frequency mixer, clock buffer, low noise
Acoustic amplifier and bandpass filter, the signal received is amplified, is filtered, frequency integration so that signal frequency it is very high and
Channel width is again very narrow, directly filters out required channel, ensure that the stability and accuracy of signal；This kind of GPS navigation antenna is logical
Setting gsm module, GPS baseband digital signal processing unit, frequency conversion IC and CXD2932 circuit integration plate are crossed, forms lock in inside
Phase ring design, product differential LO signal carries out offset cancellation noise-reduction coefficient to internal signal, and carries out radio frequency processing to signal
It is handled with digital-to-analogue conversion etc.；This kind of GPS navigation antenna, by setting local oscillator synthesizer and internal digital sampler, to inside into
Row noise of image inhibits, and signal is changed into differential signal, plays reduction power consumption, reduces loss, extends service life of equipment etc. and makees
With, while overcurrent, over-voltage, overload protection being provided.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the apparatus main body schematic diagram of internal structure of the utility model；
Fig. 3 is the ceramic antenna schematic diagram of internal structure of the utility model；
In figure：1- apparatus main body；2- installs firm banking；3- constant transmissions bar；4- cable connector；5- signal lamp；
6- ceramic antenna；7- signal receives conductor；8- low-noise amplifier；9- automatic growth control three-level frequency mixer；10- clock buffer
Device；11- local oscillator synthesizer；12-GSM module；13-CXD2932 circuit integration plate；14- internal digital sampler；15-GPS base
Band digital signal processing unit；16- demodulator；17- ceramic dielectric substrate；18- frequency conversion IC；19- bandpass filter.
Specific embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only that the utility model a part is implemented
Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution：A kind of GPS navigation antenna, including apparatus main body 1,
1 lower end of apparatus main body is provided with constant transmissions bar 3, and constant transmissions bar 3 is fixedly connected with apparatus main body 1, under constant transmissions bar 3
End is provided with installation firm banking 2, and installation firm banking 2 is fixedly connected with constant transmissions bar 3, and installation 2 right end of firm banking is set
It is equipped with cable connector 4, cable connector 4 is fixedly connected with constant transmissions bar 3, and 1 upper end of apparatus main body is provided with ceramic antenna 6, pottery
Porcelain antenna 6 is fixedly connected with apparatus main body 1,6 upper end of ceramic antenna be provided with signal receive conductor 7, signal receive conductor 7 with
The connection of 6 telecommunications of ceramic antenna, 1 front end of apparatus main body are provided with signal lamp 5, and the insertion of signal lamp 5 is arranged in device master
On body 1,1 inner upper end of apparatus main body is provided with low-noise amplifier 8, and low-noise amplifier 8 is fixedly connected with apparatus main body 1,
Be provided with automatic growth control three-level frequency mixer 9 on the left of 8 lower end of low-noise amplifier, automatic growth control three-level frequency mixer 9 with
Apparatus main body 1 is fixedly connected, and 9 right end of automatic growth control three-level frequency mixer is provided with GPS baseband digital signal processing unit 15,
GPS baseband digital signal processing unit 15 is connect with 9 telecommunications of automatic growth control three-level frequency mixer, at GPS baseband digital signal
Reason 15 right end of unit is provided with internal digital sampler 14, internal digital sampler 14 and GPS baseband digital signal processing unit
The connection of 15 telecommunications, 15 lower end of GPS baseband digital signal processing unit is provided with clock buffer 10, clock buffer 10 and GPS
The connection of 15 telecommunications of baseband digital signal processing unit, 6 inner upper end of ceramic antenna are provided with ceramic dielectric substrate 17, and institute's ceramics are situated between
Matter substrate 17 is fixedly connected with ceramic antenna 6, and 17 lower end of ceramic dielectric substrate is provided with bandpass filter 19, bandpass filter
19 connect with 8 telecommunications of low-noise amplifier.
Further, 8 front end of low-noise amplifier is provided with demodulator 16, and demodulator 16 is embedding to be set on low noise amplification
On device 8, demodulator 8 restores the low-frequency digital signal being modulated in high-frequency digital signal, and digital signal is reduced into original
The signal of beginning.
Further, 15 upper end of GPS baseband digital signal processing unit is provided with CXD2932 circuit integration plate 13,
The insertion of CXD2932 circuit integration plate 13 is arranged on GPS baseband digital signal processing unit 15, CXD2932 circuit integration plate 13
Differential GPS and DARC (being directly accessed radar radio frequency channel) full visual field (ALL-IN-VIEW) is supported to measure, it is various fixed to can be realized
Position and navigation.
Further, 14 front end of internal digital sampler is provided with gsm module 12, and the insertion of gsm module 12 is arranged in inside
On digital sampler 14, GSM radio frequency chip, baseband processing chip, memory, power discharging device etc. are integrated in one by gsm module 12
Block wiring board provides GSM radio frequency processing, Base-Band Processing and provides the functions such as standard interface.
Further, 10 lower end of clock buffer is provided with local oscillator synthesizer 11, local oscillator synthesizer 11 and clock buffer
10 are electrically connected, and local oscillator synthesizer 11 carries out frequency synthesis from the amplitude-phase relationship of signal, makes this kind of GPS navigation antenna
Frequency resolution is improved, frequency switching time is shortened, has widened relative bandwidth, signal phase connects when ensure that frequency conversion
It is continuous.
Further, 6 inner hub location of ceramic antenna is provided with frequency conversion IC18, and frequency conversion IC18 is through setting in ceramic day
In line 6, frequency conversion IC18 changes frequency of supply, to adjust load, plays reduction power consumption, reduces loss, extends equipment and uses the longevity
The effects of life, while overcurrent, over-voltage, overload protection being provided.
Working principle：Firstly, staff's detection device all parts performance whether can normal use, check can
After normal use, installation firm banking 2 is fixed to suitable position, and cable connector 4 is connect with external equipment, signal refers to
Show that lamp 5 lights green light and shows that device operates normally, red shows to break down, and satellite-signal by ceramic dielectric substrate 17 by being increased
Signal receiver 7 after width is received, and the GPS signal received is by the amplification of low-noise amplifier 8 and 19 mistake of bandpass filter
Filter, is transported to automatic growth control three-level frequency mixer 9 and integrates the discrete signal of different moments with clock buffer 10, shape
At stable signal, it is then communicated to frequency conversion IC18, then single-ended or difference IF is believed radiofrequency signal processing by frequency conversion IC18
Number be transferred to GPS baseband digital signal processing unit 15, local oscillator synthesizer 11 and gsm module 12 GPS signal is carried out it is further
GSM radio frequency processing and frequency integration handle, last treated pure stabilization and continuously signal is transferred to demodulator
16, it converts digital signals into original signal and is exported by cable connector, internal digital sampler 14 provides internal signal processing
Environmental feedback gives each element, reduces the noise coefficient inside device.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (6)
1. a kind of GPS navigation antenna, including apparatus main body (1), it is characterised in that：Described device main body (1) lower end is provided with solid
Determine transmission pole (3), and the constant transmissions bar (3) is fixedly connected with apparatus main body (1), constant transmissions bar (3) lower end is set
It is equipped with installation firm banking (2), and the installation firm banking (2) is fixedly connected with constant transmissions bar (3), the installation is fixed
Pedestal (2) right end is provided with cable connector (4), and the cable connector (4) is fixedly connected with constant transmissions bar (3), the dress
It sets main body (1) upper end to be provided with ceramic antenna (6), and the ceramic antenna (6) is fixedly connected with apparatus main body (1), the pottery
Porcelain antenna (6) upper end is provided with signal and receives conductor (7), and the signal receives conductor (7) and ceramic antenna (6) telecommunications connects
It connects, described device main body (1) front end is provided with signal lamp (5), and the signal lamp (5) insertion is arranged in device master
On body (1), described device main body (1) inner upper end is provided with low-noise amplifier (8), and the low-noise amplifier (8) with
Apparatus main body (1) is fixedly connected, and is provided with automatic growth control three-level frequency mixer on the left of low-noise amplifier (8) lower end
(9), and the automatic growth control three-level frequency mixer (9) is fixedly connected with apparatus main body (1), the automatic growth control three-level
Frequency mixer (9) right end is provided with GPS baseband digital signal processing unit (15), and the GPS baseband digital signal processing unit
(15) it is connect with automatic growth control three-level frequency mixer (9) telecommunications, GPS baseband digital signal processing unit (15) right end is set
It is equipped with internal digital sampler (14), and the internal digital sampler (14) and GPS baseband digital signal processing unit (15)
Telecommunications connection, GPS baseband digital signal processing unit (15) lower end are provided with clock buffer (10), and the clock is slow
It rushes device (10) to connect with GPS baseband digital signal processing unit (15) telecommunications, ceramic antenna (6) inner upper end is provided with pottery
Ceramic dielectric substrate (17), and institute's ceramic dielectric substrate (17) is fixedly connected with ceramic antenna (6), the ceramic dielectric substrate (17)
Lower end is provided with bandpass filter (19), and the bandpass filter (19) is connect with low-noise amplifier (8) telecommunications.
2. a kind of GPS navigation antenna according to claim 1, it is characterised in that：Low-noise amplifier (8) front end is set
It is equipped with demodulator (16), and the demodulator (16) is embedding is set on low-noise amplifier (8).
3. a kind of GPS navigation antenna according to claim 1, it is characterised in that：The GPS baseband digital signal processing is single
First (15) upper end is provided with CXD2932 circuit integration plate (13), and the CXD2932 circuit integration plate (13) insertion setting exists
On GPS baseband digital signal processing unit (15).
4. a kind of GPS navigation antenna according to claim 1, it is characterised in that：Before the internal digital sampler (14)
End is provided with gsm module (12), and the gsm module (12) insertion is arranged on internal digital sampler (14).
5. a kind of GPS navigation antenna according to claim 1, it is characterised in that：Clock buffer (10) lower end is set
It is equipped with local oscillator synthesizer (11), and the local oscillator synthesizer (11) and clock buffer (10) are electrically connected.
6. a kind of GPS navigation antenna according to claim 1, it is characterised in that：Ceramic antenna (6) the inside center position
It installs and is equipped with frequency conversion IC (18), and the frequency conversion IC (18) runs through setting in ceramic antenna (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820209808.4U CN208125927U (en) | 2018-02-07 | 2018-02-07 | A kind of GPS navigation antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820209808.4U CN208125927U (en) | 2018-02-07 | 2018-02-07 | A kind of GPS navigation antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208125927U true CN208125927U (en) | 2018-11-20 |
Family
ID=64207119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820209808.4U Expired - Fee Related CN208125927U (en) | 2018-02-07 | 2018-02-07 | A kind of GPS navigation antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208125927U (en) |
-
2018
- 2018-02-07 CN CN201820209808.4U patent/CN208125927U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20200207 |