CN205092979U - Lightning protection heavy current loop - Google Patents
Lightning protection heavy current loop Download PDFInfo
- Publication number
- CN205092979U CN205092979U CN201520801760.2U CN201520801760U CN205092979U CN 205092979 U CN205092979 U CN 205092979U CN 201520801760 U CN201520801760 U CN 201520801760U CN 205092979 U CN205092979 U CN 205092979U
- Authority
- CN
- China
- Prior art keywords
- lightning protection
- pass filter
- port
- filter circuit
- electric
- 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.)
- Active
Links
Abstract
The utility model discloses a lightning protection heavy current loop, include: low pass filter circuit through electric capacity electric connection and the 2nd low pass filter circuit, respectively with the both ends electric connection's of electric capacity basic station radio frequency port and antenna end mouth, with the 2nd low pass filter circuit electric connection's lightning protection circuit and with lightning protection circuit electric connection's power port. The utility model provides a lightning protection heavy current loop can provide the electric power that satisfies the demands, for example voltage is - 48V, and the electric current is 10A's electric power to the maximum, simultaneously, the wideless defect of accommodation has been overcome.
Description
Technical field
The utility model relates to moving communicating field, particularly relates to a kind of lightning protection big current distribute device used between communication system base station and tower amplifier.
Background technology
Loop comprises three ports, and port BTS/NodeB is connected with base station radio-frequency equipment, and POWER port is connected with the DC power supply of base station, and ANT port feeds signals to tower top by radio frequency cable.Be capacitively coupled to ANT port from the radiofrequency signal of base station input, then converge at ANT port with the direct current from POWER port, two road signals are transported to tower top by radio frequency cable.Again by loop after arriving tower top, radiofrequency signal and direct current are shunted to BTS/NodeB port and POWER port respectively, and gives base station relevant device respectively.
The general voltage of direct current power that the power port of the existing loop used between communication system base station and tower amplifier provides is little, and electric current is also little, is difficult to meet voltage and is-48V and direct current size is the high-power feed needs of 10A.
Summary of the invention
The purpose of this utility model is to provide a kind of lightning protection big current distribute device, and it can supplying voltage be-48V and electric current be the electric power of 10A; And have lightning protection function, lightning protection properties can reach 10kA (8/20 waveform).
For realizing this object, the utility model adopts following technical scheme:
A kind of lightning protection big current distribute device, comprising: the first low-pass filter circuit be electrically connected by electric capacity and the second low-pass filter circuit, the base station radio-frequency port is electrically connected with the two ends of described electric capacity respectively and antenna port, and the lightning protection circuit that is electrically connected of described second low-pass filter circuit and the power port that is electrically connected with described lightning protection circuit.
Compared with prior art, the utility model possesses following advantage:
The lightning protection big current distribute device that the utility model provides can provide the electric power satisfied the demands, and such as voltage is-48V, and electric current is the electric power of 10A to the maximum; Overcome the defect that accommodation is wideless.In other words, lightning protection big current distribute apparatus of the present utility model has the advantage of wide accommodation.When needing lightning protection big current distribute device between communication system base station and tower amplifier, good application prospect can be had.
[accompanying drawing explanation]
Fig. 1 is the structured flowchart of the utility model lightning protection big current distribute device;
Fig. 2 is a kind of preferred embodiment schematic diagram of the utility model lightning protection big current distribute device;
Fig. 3 is the another kind of preferred embodiment schematic diagram of the utility model lightning protection big current distribute device.
[embodiment]
Below in conjunction with drawings and Examples, the utility model is further described.
With reference to figure 1, according to an embodiment of the present utility model, a kind of lightning protection big current distribute device comprises the first low-pass filter circuit 104 of being electrically connected by electric capacity 101 and the second low-pass filter circuit 106, the base station radio-frequency port one 02 be electrically connected with the two ends of described electric capacity 101 respectively and antenna port 103, the lightning protection circuit 108 that is electrically connected with described second low-pass filter circuit 106 and the power port 105 be electrically connected with described lightning protection circuit 108.
Radiofrequency signal coupling unit, low-pass filtering part, lightning protection part is specifically comprised in theory diagram.
Lightning protection big current distribute device operation principle is as follows:
After being input to base station radio-frequency port one 02 from the radiofrequency signal of base station (not shown), be coupled to antenna port 103 by electric capacity 101; Simultaneously, after being input to power port 105 from the direct current of base station, by arriving antenna port 103 after the low-pass filtering of lightning protection circuit 108 and first, second low-pass filter circuit 104,106, the above-mentioned radiofrequency signal from base station and direct current two road signal are transported to tower top by radio frequency cable.To the loop again by second same structure after tower top, radiofrequency signal and direct current are shunted to respectively base station radio-frequency port one 02 and the power port 105 of second loop, and give base station relevant device respectively.
As shown in Figure 2, in a kind of preferred embodiment of the utility model lightning protection big current distribute device, low-pass filter circuit comprises inductance coil 109 and feedthrough capacitor 110, in order to realize big current, inductance coil 109 adopts wire diameter to be the enamelled wire of 1.5mm, and maximum current can arrive 16A, and derate uses 10A, feedthrough capacitor 110 is 20A to the maximum by electric current, and derate uses 10A; In order to realize large voltage, it is 100Vdc that feedthrough capacitor adopts withstand voltage.
As shown in Figure 3, in the another kind of preferred embodiment of the utility model lightning protection big current distribute device, lightning protection circuit comprises one-level lightning protection circuit 120, secondary lightning protection circuit 130 and decoupling inductance 140, the piezo-resistance adopted in one-level lightning protection circuit 120 and secondary lightning protection circuit 130 is 101 series, meet-48V voltage request, decoupling inductance adopts wire diameter to be the enamelled wire of 1.5mm, and maximum current can arrive 16A, and derate uses 10A.PCB cabling on-48V path meets 10A current requirements.
Its specific works step is as follows:
Step 1: base station radio-frequency signal is input to the base station radio-frequency port one 02 of loop, the direct current (voltage is-48V, and electric current is 10A to the maximum) of base station is input to the power port 105 of loop;
Step 2: radiofrequency signal is coupled to antenna port 103 by electric capacity 101, direct current (voltage is-48V, and electric current is 10A to the maximum) is by arriving antenna port 103 after lightning protection circuit, low-pass filtering;
Step 3: the radiofrequency signal and the direct current (voltage is-48V, and electric current is 10A to the maximum) that converge to antenna port 103 are transported to tower top by radio frequency cable;
Step 4: the radio frequency cable of conveying radiofrequency signal and direct current (voltage is-48V, and electric current is 10A to the maximum) receives the antenna port 103 of tower top loop;
Step 5: the radiofrequency signal of antenna port 103 is coupled to base station radio-frequency port one 02 by electric capacity 101, the direct current (voltage is-48V, and electric current is 10A to the maximum) of antenna port 103 arrives power port 105 by two low-pass filter circuits 104,106 and lightning protection circuit 108;
Step 6: the radiofrequency signal of base station radio-frequency port one 02 and the direct current (voltage is-48V, and maximum current is 10A) of power port 105 deliver to the corresponding interface of tower amplifier respectively.
Compared with existing loop, the lightning protection big current distribute device that the utility model provides can provide the electric power satisfied the demands, and such as voltage is-48V, and electric current is the electric power of 10A to the maximum; Meanwhile, the defect that accommodation is wideless is overcome.In other words, lightning protection big current distribute apparatus of the present utility model has the advantage of wide accommodation.When needing lightning protection big current distribute device between communication system base station and tower amplifier, good application prospect can be had.
Therefore; above-described embodiment is the utility model preferably execution mode; but be not merely restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be all included within protection range of the present utility model.
Claims (5)
1. a lightning protection big current distribute device, is characterized in that comprising: the first low-pass filter circuit be electrically connected by electric capacity and the second low-pass filter circuit, the base station radio-frequency port be electrically connected with the two ends of described electric capacity respectively and antenna port, the lightning protection circuit be electrically connected with described second low-pass filter circuit and the power port be electrically connected with described lightning protection circuit.
2. lightning protection big current distribute device as claimed in claim 1, is characterized in that: described low-pass filter circuit comprises inductance electricity circle and feedthrough capacitor.
3. lightning protection big current distribute device as claimed in claim 2, is characterized in that: described inductance electricity encloses as wire diameter is the enamelled wire of 1.5mm.
4. lightning protection big current distribute device as claimed in claim 1, is characterized in that: described lightning protection circuit comprises one-level lightning protection circuit, secondary lightning protection circuit and decoupling inductance.
5. lightning protection big current distribute device as claimed in claim 4, is characterized in that: the enamelled wire of described decoupling inductance to be wire diameter be 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520801760.2U CN205092979U (en) | 2015-10-13 | 2015-10-13 | Lightning protection heavy current loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520801760.2U CN205092979U (en) | 2015-10-13 | 2015-10-13 | Lightning protection heavy current loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205092979U true CN205092979U (en) | 2016-03-16 |
Family
ID=55483626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520801760.2U Active CN205092979U (en) | 2015-10-13 | 2015-10-13 | Lightning protection heavy current loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205092979U (en) |
-
2015
- 2015-10-13 CN CN201520801760.2U patent/CN205092979U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103634016A (en) | Tunable impedance matching circuit | |
| CN203339687U (en) | High speed and high frequency signal port surge protection circuit | |
| TWI565250B (en) | Method and device for maintaining the quality of power line communication carrier | |
| CN101877481A (en) | Lightening protection method and lightening protection feed between tower amplifier and base station | |
| CN106301399B (en) | Mobile terminal, antenna assembly and radio-frequency front-end ballistic device | |
| CN205092979U (en) | Lightning protection heavy current loop | |
| CN104701625A (en) | Antenna assembly with decoupling function, decoupling method and decoupling system | |
| CN103220017A (en) | Communication system for distributing electric energy and signal and control method thereof | |
| CN203306042U (en) | Pulse choke transformer | |
| CN210202037U (en) | Power protection circuit and bluetooth headset | |
| CN203734134U (en) | Compact-type large-energy channel surge protector | |
| CN103428129A (en) | Communication terminal and emi protection and surge protection device | |
| CN201994419U (en) | Transmitting antenna device for train bidirectional communication system | |
| CN201528202U (en) | RF DC isolation high-voltage protection converter | |
| CN205039788U (en) | A multichannel wave filter and digital microwave transmission equipment for digital microwave transmission equipment | |
| CN217522812U (en) | Feed circuit is put to basic station tower | |
| CN204231307U (en) | A kind of filter circuit of compatible overcurrent | |
| CN203399104U (en) | A smart home wireless relay route circuit | |
| CN203708245U (en) | Electric power carrier multiphase signal coupler used for civil air defense | |
| CN103296488B (en) | Feed network device, antenna feed system and base station | |
| CN210629100U (en) | Single-path lightning protection circuit | |
| CN209640417U (en) | It is a kind of with the circuit with antenna detection Yu Anti-surging function | |
| CN204758775U (en) | Test circuit of big dipper baseband chip | |
| CN203466789U (en) | Through-flow coupler | |
| CN203225750U (en) | Communication system for distributing power and signals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |