CN106356627A - Method for combining coaxial feeders of vehicle-mounted GPS and 4G antennae - Google Patents
Method for combining coaxial feeders of vehicle-mounted GPS and 4G antennae Download PDFInfo
- Publication number
- CN106356627A CN106356627A CN201610795693.7A CN201610795693A CN106356627A CN 106356627 A CN106356627 A CN 106356627A CN 201610795693 A CN201610795693 A CN 201610795693A CN 106356627 A CN106356627 A CN 106356627A
- Authority
- CN
- China
- Prior art keywords
- block capacitor
- antenna
- coaxial feeder
- filter
- band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0087—Apparatus or processes specially adapted for manufacturing antenna arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
Abstract
The invention discloses a method for combining coaxial feeders of a vehicle-mounted GPS and 4G antennae. A coaxial feeder, a band-stop filter, a band-pass filter, a first block capacitor, a second block capacitor, a third block capacitor, an RF (radio frequency) choking coil and an RF connector are adopted; one end of the band-stop filter is connected with a 4G antenna, the other end of the band-stop filter is connected with one end of the first block capacitor, and the other end of the block capacitor is connected with the coaxial feeder; one end of the band-pass filter is connected with one end of the second block capacitor, the other end of the second block capacitor is connected with the GPS antenna, the other end of the band-pass filter is connected with one end of the third block capacitor, and the other end of the third block capacitor is connected with the coaxial feeder; a direct current branch is bridged between the GPS antenna and the coaxial feeder, and an RF choking inductor is arranged in the direct current branch; the coaxial feeders required by the vehicle-mounted 4G antenna and GPS antenna are combined into one coaxial feeder, the number of antennae and feeders is reduced, arrangement of cables in a vehicle is facilitated, and RF connectors at the corresponding antenna terminal and device terminal are reduced.
Description
Technical field
The present invention relates to a kind of method merging vehicle-mounted gps and 4g antenna coaxial feeder.
Background technology
The quantity of car antenna gets more and more now, such as 4g main antenna, 4g slave antenna, gps antenna, bds antenna, am/fm
Antenna, wifi antenna, rke antenna etc., these antenna concentrates in an antenna house, but these antenna is required for the radio frequency of oneself
Coaxial feeder, so can bring about some problems, such as, if radio-frequency (RF) coaxial feeder line is too many, can lead to in-car difficult wiring, separately
Outer cost also increases, especially external antenna, and because feeder line is longer, cost increases more.
Present invention aim to providing a kind of method merging vehicle-mounted gps and 4g antenna coaxial feeder.
The present invention adopts the following technical scheme that
A kind of method merging vehicle-mounted gps and 4g antenna coaxial feeder, including coaxial feeder, band elimination filter, band logical filter
Ripple device, the first block capacitor, the second block capacitor, the 3rd block capacitor, radio frequency choke coil, rf adapter；
Wherein, described band elimination filter one end connects 4g antenna, and the other end connects one end of described first block capacitor,
The other end of described first block capacitor is connected with described coaxial feeder, and this connection scheme can stop gps antenna from receiving
The 1575.42mhz frequency band signals arriving enter 4g antenna, because gps antenna contains low-noise amplifier, need to power up, so with
Axis with transmitting galvanic function, the effect of described first block capacitor be in order to do not make described band elimination filter because
Affect the power supply to gps amplifier for direct-current short circuit；
Described band filter one end connects described second block capacitor, the other end of described second block capacitor with
Gps antenna connects, and the described band filter other end connects one end of described 3rd block capacitor, described 3rd capacitance
The other end of device is connected with described coaxial feeder, and the effect of described band filter is to stop 4g signal from entering gps antenna
Side, the effect of described second block capacitor and threeth block capacitor similar with the effect of described first block capacitor
It is to not make described band filter affect the power supply to low-noise amplifier in gps antenna because of direct-current short circuit；
In order to ensure the power supply of low-noise amplifier in gps antenna, need the span in gps antenna and described coaxial feeder
Connect direct current branch, in order to stop radiofrequency signal from entering gps antenna, described radio frequency of having connected in direct current branch through direct current branch
Choke induction；
Preferably, the upper employing of two-sided fr4 printed circuit board (PCB) (pcb) that described band elimination filter is 1 millimeter in thickness is distributed
Parameter microstrip circuit is realizing；
Further, described band elimination filter is made up of microstrip line, minor matters one and minor matters two, and the impedance of microstrip line is 50 Europe
Nurse, 2 millimeters of live width；The width of minor matters 1 is 1 millimeter, 7 millimeters of length；The width of minor matters 2 is 0.1 millimeter, and length is 29 millimeters；
Two ports respectively with 4g antenna and the first block capacitor capacitance connection；
Preferably, described band filter adopts village field SAW filter or tdk SAW filter；
Preferably, described radio frequency choke inductance adopts the high-frequency inductor of high q value；
Further, the inductance value of described radio frequency choke inductance is 120nh；
Preferably, the capacitance of described first, second, third block capacitor is 200pf.
By technical scheme, the coaxial feeder that vehicle-mounted 4g antenna and gps antenna are required for originally is incorporated into
One, decrease feeder quantity, be easy to cable and arrange in the car, decrease the radio frequency of corresponding antenna end and equipment end
Adapter, so can reduce overall cost.
Brief description:
Accompanying drawing 1 is the elementary diagram of the present invention；
Accompanying drawing 2 is the structural representation of distributed band elimination filter；
In Fig. 1,1 is 4g antenna, and 2 is band filter, and 3 is gps antenna, and 4 is the 3rd block capacitor, and 5 is that radio frequency is gripped
Streamline circle, 6 is rf adapter, and 7 is the second block capacitor, and 8 is coaxial feeder, and 9 is the first block capacitor, and 10 is band resistance filter
Ripple device；
In Fig. 2,101 is pcb plate, 102 be port 2,103 be microstrip line, 104 be port 1,105 be minor matters 1,106 be branch
Section 2；
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description:
1 is 4g antenna, and 10 is band elimination filter, and 9 is the first block capacitor, and 7 is coaxial feeder, and 4g antenna 1 is hindered with band
The a port of wave filter 10 connects, and band elimination filter 10 another port is connected with one end of the first block capacitor 9, first every
The other end of straight capacitor 9 is connected to coaxial feeder 7；Band elimination filter 10 prevents the signal that gps antenna 3 receives to enter 4g days
Line 1 and cause the loss of 3db, the first block capacitor 9 prevents band elimination filter 10 from causing direct-current short circuit.
3 is gps antenna, and 4 is the 3rd block capacitor, and 2 is band filter, and 8 is the second block capacitor, gps antenna 3
It is connected with one end of the 3rd block capacitor 4, the other end of the 3rd block capacitor 4 connects one end of band filter 2, band logical
The other end of wave filter 2 connects one end of the second block capacitor 8, and the other end of the second block capacitor 8 connects coaxial feeder
7；Band filter 2 stops 4g signal from entering gps antenna side, and the effect of the second block capacitor 8 and the 3rd block capacitor 4 is
Prevent band filter 2 from causing direct-current short circuit.
Direct current branch, series radio-frequency choke induction 5 in direct current branch is bridged between gps antenna 3 and coaxial feeder 7；Both protected
Demonstrate,prove the power supply of the low-noise amplifier in gps3 antenna, prevent radiofrequency signal to enter gps antenna 3 through DC channel again.
Coaxial feeder 7 is connected with radio frequency connector.
Preferably, as shown in Figure 2, the two-sided fr4 printed circuit board (PCB) (pcb) that band elimination filter 10 is 1 millimeter in thickness
On to be realized using distributed constant microstrip circuit；
Further, band elimination filter 10 is made up of microstrip line 103, minor matters 1 and minor matters 2 106, the resistance of microstrip line
Resist for 50 ohm, 2 millimeters of live width；The width of minor matters one is 1 millimeter, 7 millimeters of length；The width of minor matters two is 0.1 millimeter, length
For 29 millimeters；Two ports 102 and 104 respectively with 4g antenna and the first block capacitor capacitance connection；
Preferably, band filter 2 adopts village field SAW filter or tdk SAW filter；
Preferably, radio frequency choke inductance 5 adopts the high-frequency inductor of high q value；
Further, the inductance value of radio frequency choke inductance 5 is 120nh；
Preferably, the first block capacitor 9, the second block capacitor 8, the capacitance of the 3rd block capacitor 4 are
200pf.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of method merging vehicle-mounted gps and 4g antenna coaxial feeder, including coaxial feeder and radio frequency connector, is characterized in that
Also include band elimination filter, band filter, the first block capacitor, the second block capacitor, the 3rd block capacitor, radio frequency
Choking-winding；
Described band elimination filter one end connection 4g antenna, one end of the other end described first block capacitor of connection, described first
The other end of block capacitor is connected with described coaxial feeder；
Described band filter one end connects described second block capacitor, the other end of described second block capacitor and gps
Antenna connects, and the described band filter other end connects one end of described 3rd block capacitor, described 3rd block capacitor
The other end be connected with described coaxial feeder；
Bridge direct current branch, described radio frequency choke inductance of having connected in direct current branch in gps antenna and described coaxial feeder.
2. a kind of method merging vehicle-mounted gps and 4g antenna coaxial feeder according to claim 1, is characterized in that described band
Resistance wave filter thickness be 1 millimeter two-sided fr4 printed circuit board (PCB) on to be realized using distributed constant microstrip circuit.
3. a kind of method merging vehicle-mounted gps and 4g antenna coaxial feeder according to claim 2, is characterized in that described band
Resistance wave filter is made up of microstrip line, minor matters one and minor matters two, and the impedance of microstrip line is 50 ohm, 2 millimeters of live width；The width of minor matters 1
Spend for 1 millimeter, 7 millimeters of length；The width of minor matters 2 is 0.1 millimeter, and length is 29 millimeters；Two ports respectively with 4g antenna and
Described first block capacitor capacitance connection.
4. a kind of method merging vehicle-mounted gps and 4g antenna coaxial feeder according to claim 1, is characterized in that described band
Bandpass filter adopts village field SAW filter or tdk SAW filter.
5. according to claim 1 a kind of merge vehicle-mounted gps and 4g antenna coaxial feeder method, it is characterized in that described in penetrate
Frequency choke induction adopts the high-frequency inductor of high q value.
6. the method for a kind of merging vehicle-mounted gps and 4g antenna coaxial feeder according to claim 1 or 5 any one, its
Feature is the inductance value of described radio frequency choke inductance is 120nh.
7. a kind of method merging vehicle-mounted gps and 4g antenna coaxial feeder according to claim 1, is characterized in that described the
First, the capacitance of second, third block capacitor is 200pf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795693.7A CN106356627A (en) | 2016-08-25 | 2016-08-25 | Method for combining coaxial feeders of vehicle-mounted GPS and 4G antennae |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795693.7A CN106356627A (en) | 2016-08-25 | 2016-08-25 | Method for combining coaxial feeders of vehicle-mounted GPS and 4G antennae |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106356627A true CN106356627A (en) | 2017-01-25 |
Family
ID=57856961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610795693.7A Pending CN106356627A (en) | 2016-08-25 | 2016-08-25 | Method for combining coaxial feeders of vehicle-mounted GPS and 4G antennae |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106356627A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113131194A (en) * | 2019-12-31 | 2021-07-16 | 华为技术有限公司 | Array antenna and communication equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0803927A2 (en) * | 1996-04-26 | 1997-10-29 | SHARP Corporation | Attenuating filter for a DBS tuner for satellite broadcasting receivers |
| CN1661858A (en) * | 2004-02-27 | 2005-08-31 | 三美电机株式会社 | Composite antenna apparatus and a mobile object equipped with the antenna apparatus |
| CN104466432A (en) * | 2013-09-12 | 2015-03-25 | 莱尔德技术股份有限公司 | Multiband MIMO vehicular antenna assemblies with DSRC capabilities |
| CN105305030A (en) * | 2015-10-12 | 2016-02-03 | 惠州硕贝德无线科技股份有限公司 | On-automobile multimode combined antenna |
-
2016
- 2016-08-25 CN CN201610795693.7A patent/CN106356627A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0803927A2 (en) * | 1996-04-26 | 1997-10-29 | SHARP Corporation | Attenuating filter for a DBS tuner for satellite broadcasting receivers |
| CN1661858A (en) * | 2004-02-27 | 2005-08-31 | 三美电机株式会社 | Composite antenna apparatus and a mobile object equipped with the antenna apparatus |
| CN104466432A (en) * | 2013-09-12 | 2015-03-25 | 莱尔德技术股份有限公司 | Multiband MIMO vehicular antenna assemblies with DSRC capabilities |
| CN105305030A (en) * | 2015-10-12 | 2016-02-03 | 惠州硕贝德无线科技股份有限公司 | On-automobile multimode combined antenna |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113131194A (en) * | 2019-12-31 | 2021-07-16 | 华为技术有限公司 | Array antenna and communication equipment |
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Application publication date: 20170125 |