CN203984368U - A kind of high frequency duplexer - Google Patents
A kind of high frequency duplexer Download PDFInfo
- Publication number
- CN203984368U CN203984368U CN201420396840.XU CN201420396840U CN203984368U CN 203984368 U CN203984368 U CN 203984368U CN 201420396840 U CN201420396840 U CN 201420396840U CN 203984368 U CN203984368 U CN 203984368U
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- frequency
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- electric capacity
- duplexer
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Abstract
The utility model relates to a kind of high frequency duplexer, comprise high band circuit and low-frequency range circuit, described high band circuit comprises 0603 serial electric capacity of four series connection, a LC oscillating circuit in parallel between every two 0603 serial electric capacity, the LC oscillating circuit of described high band circuit is composed in series by 0603 serial electric capacity and high-frequency inductor; Described low-frequency range circuit comprises the LC oscillating circuit of three series connection, a high-frequency inductor of the each series connection of the input of low-frequency range circuit and output, between the LC oscillating circuit of high-frequency inductor and low-frequency range circuit, be parallel with a 0603 serial electric capacity, between every two LC oscillating circuits of low-frequency range circuit, be also parallel with a 0603 serial electric capacity; On described duplexer, gild pin is installed.Described high frequency duplexer can be processed high-frequency signal accurately, can meet the demand of EOC, and insertion loss and reflection loss are all very little, and Signal segregation degree is high, can modularization produces, volume is little.
Description
Technical field
The utility model relates to the design field of duplexer, particularly relates to a kind of high frequency duplexer.
Background technology
EOC (Ethernet over Coax) is one of technology the most popular in Two-way Network transformation instantly, in coaxial cable, carry out the transmission of Ethernet data signal, main flow is carried out ethernet signal transfer of data exactly after ovennodulation in coaxial cable, its frequency does not take cable TV frequency band, and cable TV frequency coexistence.It becomes the favorite in bidirectional network reconstruction technology for making with simple, stable, safety, low cost and other advantages.
Existing duplexer mostly is Pyatyi duplexer, and such structure cannot be processed high-frequency signal accurately, is difficult to meet the demand of EOC.Even employing high-frequency inductor, the insertion loss obtaining and reflection loss are all larger, and result of use is very poor.
Modularization and miniaturization become the target of electron trade development, and the volume of existing duplexer is bigger than normal, and cannot modularization, and it is very inconvenient to use.
How to found a kind of volume little, can modularization, Signal segregation degree is good, Insertion Loss is little and can accurately process the new high frequency duplexer of high-frequency signal, real one of the current important research and development problem that belongs to.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of high frequency duplexer, make its volume little, can modularization, Signal segregation degree is good, Insertion Loss is little and can accurately process.
For solving the problems of the technologies described above, the utility model provides a kind of high frequency duplexer, comprise high band circuit and low-frequency range circuit, described high band circuit comprises 0603 serial electric capacity of four series connection, a LC oscillating circuit in parallel between every two 0603 serial electric capacity, the LC oscillating circuit of described high band circuit is composed in series by 0603 serial electric capacity and high-frequency inductor; Described low-frequency range circuit comprises the LC oscillating circuit of three series connection, a high-frequency inductor of the each series connection of the input of low-frequency range circuit and output, between the LC oscillating circuit of high-frequency inductor and low-frequency range circuit, be parallel with a 0603 serial electric capacity, between every two LC oscillating circuits of low-frequency range circuit, be also parallel with a 0603 serial electric capacity, the LC oscillating circuit of described low-frequency range circuit is made up of high-frequency inductor and 0603 serial Capacitance parallel connection; On described duplexer, gild pin is installed.
Further, described high-frequency inductor is formed by the coil winding of wire diameter≤0.3mm, the endoporus≤1.2mm of described high-frequency inductor.
Adopt after such design, the utility model at least has the following advantages:
Described high frequency duplexer filters applicable to high-frequency signal, can process accurately high-frequency signal, can meet the demand of EOC, especially the signal of 1125-1525MHz well can be separated, and the insertion loss and the reflection loss that obtain are all very little, and Signal segregation degree is high.
Adopt the high-precision 0603 serial electric capacity of high-frequency and high-Q, the duplexer volume obtaining is little, can modularization produce, convenient and practical.
The wire diameter of inductance is little, can reduce the reciprocal effect between coil, and signal stabilization is number good.
Good in oxidation resistance, the connectedness of gild pin are good, and little to the wearing and tearing of plate.
This duplexer can be used as module and implants in EOC amplifier circuit, realizes separation and the processing of 1125-1525MHz signal.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solutions of the utility model, and in order to better understand technological means of the present utility model, below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Fig. 1 is the circuit diagram of a kind of high frequency duplexer of the utility model.
Fig. 2 is frequency and the insertion loss graph of a relation of high frequency duplexer of the present utility model.
Embodiment
Shown in Fig. 1, the utility model provides a kind of high frequency duplexer, comprise high band circuit and low-frequency range circuit, described high band circuit comprises 0603 serial electric capacity of four series connection, a LC oscillating circuit in parallel between every two 0603 serial electric capacity, the LC oscillating circuit of described high band circuit is composed in series by 0603 serial electric capacity and high-frequency inductor; Described low-frequency range circuit comprises the LC oscillating circuit of three series connection, a high-frequency inductor of the each series connection of the input of low-frequency range circuit and output, between the LC oscillating circuit of high-frequency inductor and low-frequency range circuit, be parallel with a 0603 serial electric capacity, between every two LC oscillating circuits of low-frequency range circuit, be also parallel with a 0603 serial electric capacity, the LC oscillating circuit of described low-frequency range circuit is made up of high-frequency inductor and 0603 serial Capacitance parallel connection; On described duplexer, gild pin is installed.
Described high-frequency inductor is formed by the coil winding of wire diameter≤0.3mm, the endoporus≤1.2mm of described high-frequency inductor.Wire diameter I reduces the reciprocal effect between coil, and signal stabilization is number good.
Duplexer volume of the present utility model is little, can modularization produce.Its PCB overall dimension can be 10mm*30mm, and its finished product overall dimension is 15mm*30mm.
Described high frequency duplexer filters applicable to high-frequency signal, especially the signal of 1125-1525MHz well can be separated.
Shown in Fig. 2, in figure, abscissa represents frequency (MHz), and ordinate represents insertion loss (dB), and solid line represents the insertion loss between common port and high frequency mouth, and dotted line represents the insertion loss between common port and low frequency mouth.The signal of each frequency range enters duplexer through input, and after this duplexer, the signal that the signal that frequency is 1125-1525MHz and frequency are 5-1002MHz is exported through high band circuit and the low-frequency range circuit of duplexer respectively.As can be seen from the figure, duplexer clear band curve of the present utility model is very precipitous, and insertion loss is little, through experiment, the insertion loss of this duplexer in the time of 860-1002MHz is less than 1.5dB, and insertion loss when 1125-1325MHz is less than 4dB, and insertion loss when 1325-1525MHz is less than 4dB.The separable frequency of high band circuit of the present utility model is signal more than 1000MHz, and the reflection loss of signal is little, and Signal segregation degree is high, applicable to EOC standard, applied range, strong adaptability.This duplexer can be used as module and implants in EOC amplifier circuit, realizes separation and the processing of 1125-1525MHz signal.
Good in oxidation resistance, the connectedness of gild pin are good, and little to the wearing and tearing of plate.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection range of the present utility model.
Claims (2)
1. a high frequency duplexer, it is characterized in that: comprise high band circuit and low-frequency range circuit, described high band circuit comprises 0603 serial electric capacity of four series connection, a LC oscillating circuit in parallel between every two 0603 serial electric capacity, the LC oscillating circuit of described high band circuit is composed in series by 0603 serial electric capacity and high-frequency inductor; Described low-frequency range circuit comprises the LC oscillating circuit of three series connection, a high-frequency inductor of the each series connection of the input of low-frequency range circuit and output, between the LC oscillating circuit of high-frequency inductor and low-frequency range circuit, be parallel with a 0603 serial electric capacity, between every two LC oscillating circuits of low-frequency range circuit, be also parallel with a 0603 serial electric capacity, the LC oscillating circuit of described low-frequency range circuit is made up of high-frequency inductor and 0603 serial Capacitance parallel connection; On described duplexer, gild pin is installed.
2. a kind of high frequency duplexer according to claim 1, is characterized in that: described high-frequency inductor is formed by the coil winding of wire diameter≤0.3mm the endoporus≤1.2mm of described high-frequency inductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396840.XU CN203984368U (en) | 2014-07-17 | 2014-07-17 | A kind of high frequency duplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420396840.XU CN203984368U (en) | 2014-07-17 | 2014-07-17 | A kind of high frequency duplexer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203984368U true CN203984368U (en) | 2014-12-03 |
Family
ID=51981782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420396840.XU Expired - Fee Related CN203984368U (en) | 2014-07-17 | 2014-07-17 | A kind of high frequency duplexer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203984368U (en) |
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2014
- 2014-07-17 CN CN201420396840.XU patent/CN203984368U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191018 Granted publication date: 20141203 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20221018 Granted publication date: 20141203 |
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| 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: 20141203 |