CN203932267U - Coaxial harmonic connector - Google Patents
Coaxial harmonic connector Download PDFInfo
- Publication number
- CN203932267U CN203932267U CN201320892211.1U CN201320892211U CN203932267U CN 203932267 U CN203932267 U CN 203932267U CN 201320892211 U CN201320892211 U CN 201320892211U CN 203932267 U CN203932267 U CN 203932267U
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- China
- Prior art keywords
- harmonic
- connector
- coaxial
- filter
- input adapter
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Abstract
The utility model discloses coaxial harmonic connector, comprise shell, be provided with harmonic filter in shell, the two ends of harmonic filter are connected with respectively input adapter and out splice going splice; In described harmonic filter, series inductance and shunt capacitance replace with coaxial high impedance line and low-impedance line respectively; Described input adapter is micro-input adapter with coaxial connector.The utility model is by the radio frequency out connector of power amplifier, the filter that suppresses harmonic wave, and the power output connector of transmitter has carried out unified innovation design, realized the microwave device of a plurality of simple functions has been linked together, both made the harmonic wave of transmitter reach higher technical requirement, and simplified again circuit, dwindled volume, reduced power loss and Financial cost, further improved equipment applicability and reliability.
Description
Technical field
The utility model belongs to technical field of micro communication, relates in particular to coaxial harmonic connector.
Background technology
Harmonic wave is an important technology index of transmitter.Transmitter is as the power signal output equipment of electronic system, in the middle of the power signal of its output, except the available signal power that regulation requires, often also have some useless or harmful power Components to exist, harmonic wave is exactly the most typical part wherein.
Existing coaxial harmonic device, circuit is complicated, huge structure, and need wire etc. to be arranged on power amplifier output, whole filtering, stability can not satisfy the demands, and install inconvenient.
Utility model content
The purpose of this utility model is to provide coaxial harmonic connector, and the microwave device that can realize a plurality of simple functions is integrated together, and circuit is simple, compact conformation, easy for installation, has reduced again insertion loss, has improved the reliability of Whole Equipment.
The utility model adopts following technical proposals:
Coaxial harmonic connector, comprises shell, is provided with harmonic filter in shell, and the two ends of harmonic filter are connected with respectively input adapter and out splice going splice; In described harmonic filter, series inductance and shunt capacitance replace with coaxial high impedance line and low-impedance line respectively.
Described input adapter is micro-input adapter with coaxial connector.
Described out splice going splice adopts the out splice going splice of the N-type radio frequency (RF) coaxial connector of standard.
Described shell adopts the universal architecture shell of general N-type KFK connector.
Described harmonic filter is lowpass prototype filter.
The utility model is simple in structure, it is by the radio frequency out connector of power amplifier, the filter that suppresses harmonic wave, and the power output connector of transmitter has carried out unified innovation design, realized the microwave device of a plurality of simple functions has been linked together, both made the harmonic wave of transmitter reach higher technical requirement, and simplified again circuit, dwindled volume, reduced power loss and Financial cost, further improved equipment applicability and reliability.
Accompanying drawing explanation
Fig. 1 a is the schematic diagram of transmission line segment in harmonic filter described in the utility model;
Fig. 1 b is the schematic diagram of the T-shaped equivalent electric circuit of transmission line segment in harmonic filter described in the utility model;
Fig. 1 c is the schematic diagram of transmission line segment П type equivalent electric circuit in harmonic filter described in the utility model;
Fig. 2 is coaxial harmonic filter circuit illustraton of model described in the utility model;
Fig. 3 is the utility model structure external form schematic diagram;
Fig. 4 is stopband suppression characteristic analogous diagram of the present utility model;
Fig. 5 is pass band damping of the present utility model and port standing wave analogous diagram.
Embodiment
As shown in Figure 3, coaxial harmonic connector, comprises shell 2, in shell 2, is provided with harmonic filter, and the two ends of harmonic filter are connected with respectively input adapter 3 and out splice going splice 1; In described harmonic device, series inductance and shunt capacitance replace with coaxial high impedance line and low-impedance line respectively, thereby form lowpass prototype filter, thereby realize harmonic.
Lowpass prototype filter is alternately connected formed by a series of series inductances and shunt capacitance, in microwave circuit, a transmission line segment can be equivalent to T shape or the П l network of electric capacity and inductance composition; In Fig. 1 a-Fig. 1 c, I represents the length of transmission line segment, Z
0and Y
0its impedance and admittance.In T-shaped equivalent electric circuit, its equivalent reactance X and susceptance are respectively B:
in П type equivalent electric circuit, its equivalent reactance X and susceptance B are respectively:
(3)
the Approximate Equivalent requirement of above formula
.When transmission line is very short and termination is appropriate, can be similar to the reactance component equivalent of thinking that itself and one are independent.The Low ESR transmission line segment that is connected to high impedance line for two ends, the series reactance X in its T-shaped equivalent electric circuit is very little, and the reactance of the high impedance line of its two ends serial connection is very large, therefore X can ignore, so can be equivalent to an independent shunt capacitance.In like manner, for two ends, be connected to the high-impedance transmission line segment of low-impedance line, the shunt susceptance B in its П type equivalent electric circuit is very little, and the susceptance of its two ends the low-impedance line that connects is very large, therefore B can also ignore, so its circuit can be equivalent to an independent series inductance.
Pass between the characteristic impedance Z 0 of coaxial line and its inner conductor outer diameter a and outer conductor internal diameter b is:
in the formula of (ohm) (5):
with
respectively relative dielectric constant and the relative permeability of filled media between coaxial line two conductors.
If the series inductance in filter element and shunt capacitance are realized with coaxial high impedance line and low-impedance line respectively, series inductance or shunt capacitance are all relevant by the resistance value with coaxial line and line segment length, and impedance is only relevant with the size of coaxial line internal and external conductor, its length is relevant with frequency.Consider the processing reasonability of structural design size and the transmission characteristic of conductor losses and average power, in the present embodiment, selected high impedance is 100 ohm, and Low ESR is 25 ohm; Consider passband maximum attenuation LAr≤0.3dB, minimum attenuation in stop band LA >=40dB, gets component number n=11, and its coaxial filter circuit designs a model as shown in Figure 2.
On structure realizes, input adapter 3 is designed to micro-band coaxial connector form, the N-type radio frequency (RF) coaxial connector form of 1 direct employing standard of out splice going splice; In the design of mounting means, adopt the universal architecture form of general N-type KFK connector.The structure external form signal of whole harmonic connector as shown in Figure 3.
Described input adapter is micro-input adapter 3 with coaxial connector, and described out splice going splice 1 adopts the out splice going splice 1 of the N-type radio frequency (RF) coaxial connector of standard, and described shell adopts the universal architecture shell of general N-type KFK connector.The design of this coaxial harmonic connector, not only circuit is simple, compact conformation, easy for installation, and owing to having carried out dexterously integrated processing, insertion loss when thereby original power cable inserts port, improved port standing wave, and reduced cost, improved transmitter frequency and equipment dependability.
Shown in Fig. 4, Fig. 5: select copper material and air dielectric, use Ansoft Microwave simulation software to carry out modeling and simulating and optimal design to the circuit of filter connector.By changing the length of high low-impedance line section and the structural parameters numerical value of coaxial connector is optimized calculating to the pass band damping of filter circuit and stopband suppression characteristic, the simulation result obtaining.
According to requirement of engineering, the overall dimension of the harmonic connector of actual design is 85 mm * 35 mm * 25mm, its key technical indexes test result; By finding out in embodiment, except frequency bandwidth, harmonic wave suppress, port standing wave can be good at meeting the demands, its insertion loss has approximately improved 0.85dB than before, is equivalent under similarity condition, makes power amplifier power output improve 17.8%.
Facts have proved, the design of this harmonic connector, not only circuit is simple, compact conformation, easy for installation, and owing to having carried out dexterously integrated processing, thereby reduced insertion loss, improve port standing wave, and reduced cost, improved transmitter frequency and equipment dependability.
Claims (5)
1. coaxial harmonic connector, comprises shell, is provided with harmonic filter in shell, it is characterized in that: the two ends of harmonic filter are connected with respectively input adapter and out splice going splice; In described harmonic filter, series inductance and shunt capacitance replace with coaxial high impedance line and low-impedance line respectively.
2. coaxial harmonic connector according to claim 1, is characterized in that: described input adapter is micro-input adapter with coaxial connector.
3. coaxial harmonic connector according to claim 1, is characterized in that: described out splice going splice adopts the out splice going splice of the N-type radio frequency (RF) coaxial connector of standard.
4. according to the coaxial harmonic connector described in the arbitrary claim of claim 1-3, it is characterized in that: described shell adopts the universal architecture shell of general N-type KFK connector.
5. coaxial harmonic connector according to claim 4, is characterized in that: described harmonic filter is lowpass prototype filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892211.1U CN203932267U (en) | 2013-12-31 | 2013-12-31 | Coaxial harmonic connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892211.1U CN203932267U (en) | 2013-12-31 | 2013-12-31 | Coaxial harmonic connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203932267U true CN203932267U (en) | 2014-11-05 |
Family
ID=51828031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320892211.1U Expired - Fee Related CN203932267U (en) | 2013-12-31 | 2013-12-31 | Coaxial harmonic connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203932267U (en) |
-
2013
- 2013-12-31 CN CN201320892211.1U patent/CN203932267U/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 | ||
| 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: 20141105 Termination date: 20201231 |