CN203984365U - A kind of adjustable printed panel transformer - Google Patents
A kind of adjustable printed panel transformer Download PDFInfo
- Publication number
- CN203984365U CN203984365U CN201420430729.8U CN201420430729U CN203984365U CN 203984365 U CN203984365 U CN 203984365U CN 201420430729 U CN201420430729 U CN 201420430729U CN 203984365 U CN203984365 U CN 203984365U
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- transformer
- printed panel
- capacitor
- utility
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of adjustable printed panel transformer, this circuit structure is by port one (Port1), port 2 (Port2); Resistance; Electric capacity and inductance form.By changing the value of resonant capacitance and coupling capacitance, can adjust centre frequency and the outer transmission zero of band of transformer.The utility model can be realized the bandwidth of band, can be widely used in 5G mobile communication power splitter etc. to the strict place of signal performance requirement, can reduce passband external noise, improves the stability of electronic circuit.
Description
Technical field
The utility model belongs to transformer application field, particularly a kind ofly realizes adjustable printed panel transformer, belongs to electronics and the communications field.
Background technology
In field transformer, improving the anti-short ability of transformer is to improve the key measure of operation of power networks reliability, and high adjustable printed panel transformer is because its short-circuit capacity is compared with being day by day subject to by force the favor of power consumer.In the last few years, carried out a series of research about transformer both at home and abroad.Obtained a lot of achievements in research, be especially used in mobile communication technology, used at adjustable printed panel transformer and can effectively solve that system linear degree is low, narrow bandwidth, problem that passband external noise is large.But its project organization can only be used in specific frequency range, and bandwidth is less, signal attenuation is larger, causes having to increase the number of power amplifier, makes system bulk larger, versatility is not strong.Simultaneously traditional transformer is due to the problem of its structure, makes temperature sensitivity extremely strongly, and applicability is very limited.The utility model, for above problem, can effectively solve, and to meet system requirements, and stability is high, volume is little, processing is simple, applied widely.
Summary of the invention
The utility model provides a kind of transformer with ultra broadband, the tunable center frequency that simple in structure, volume is little, stability is high and the outer transmission zero of band.
The technical scheme that realizes the utility model object is: a kind of adjustable printed panel transformer,: comprise by port one (Port1) be connected with node 1, port 2 (Port2) is connected with node 2, R1, two elements of L1 are together in series and are connected between node 1,2; R2, two elements of L2 are together in series and are connected between node 2,3; R3, two elements of L3 are together in series and are connected between node 2 and ground; Capacitor C 1 one end is connected with node 1; The other end is connected to the ground and connects; Capacitor C 2 one end are connected with node 3; The other end is connected to the ground and connects; Capacitor C 12 two ends are connected with node 3 with node 1 respectively; Two port internal resistances are 50 ohm.Element R1, R2 and R3 value equate; Element L1, L2 and L3 value equate; Change capacitor C 1, the value of C2, can regulate the centre frequency of transformer, changes the value of capacitor C 12, can regulate the transmission zero location of transformer.Described adjustable printed panel transformer, can be realized by lamped element, finally adopts printing forme circuit board to realize.
Compared with prior art, the utility model provides a kind of feature that centre frequency is adjustable, the outer transmission zero of band is adjustable, simple in structure, volume is little, stability is high that has.
Accompanying drawing explanation
Fig. 1 is a kind of adjustable printed panel transformer circuit figure of the utility model.
Fig. 2 is a kind of adjustable printed panel transformer S parameter characteristic figure of the utility model.
Fig. 3 is a kind of adjustable printed panel transformer phase characteristic figure of the utility model.
Fig. 4 is a kind of adjustable printed panel transformer coupled capacitor C1 of the utility model, when C2 gets different parameters, and corresponding S parameter characteristic figure.
Fig. 5 is a kind of adjustable printed panel transformer coupled capacitor C12 of the utility model while getting different parameters, corresponding S parameter characteristic figure.
Fig. 6 is a kind of adjustable printed panel transformer graphics of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
In conjunction with Fig. 1, the utility model is a kind of adjustable printed panel transformer: comprise by being connected with node 1 by port one (Port1), port 2 (Port2) is connected with node 2, R1, two elements of L1 are together in series and are connected between node 1,2; R2, two elements of L2 are together in series and are connected between node 2,3; R3, two elements of L3 are together in series and are connected between node 2 and ground; Capacitor C 1 one end is connected with node 1; The other end is connected to the ground and connects; Capacitor C 2 one end are connected with node 3; The other end is connected to the ground and connects; Capacitor C 12 two ends are connected with node 3 with node 1 respectively; Two port internal resistances are 50 ohm.Element R1, R2 and R3 value equate; Element L1, L2 and L3 value equate; Change capacitor C 1, the value of C2, can regulate the centre frequency of transformer, changes the value of capacitor C 12, can regulate the transmission zero location of transformer.Described adjustable printed panel transformer, can be realized by lamped element, finally adopts printing forme circuit board to realize.
In conjunction with Fig. 2, Fig. 3 can obviously find out, this transformer has wider bandwidth and linear phase characteristic.In conjunction with Fig. 4, can find out, by changing resonant capacitance C1, the value of C2, can adjust the centre frequency of transformer; In conjunction with Fig. 5, can find out, by changing the value of coupling capacitance C12, can adjust the outer transmission zero of band of transformer; Fig. 6 is the graphics of printed circuit board (PCB) of the present utility model.In sum, the decay of the peak signal of this kind of transformer is less, has wider bandwidth, and utility model design performance is good, can meet the requirement of system.
The utility model is a kind of adjustable printed panel transformer, in conjunction with Fig. 1, its operation principle is summarized as follows: comprise by two ports and corresponding components and parts, by coupling capacitance, be coupled to realize and couple a signal to output port, by above-mentioned explanation, show that this transformer has centre frequency and the adjustable function of the outer transmission zero of band.To in electric power and communication system, there is important application.
Claims (3)
1. an adjustable printed panel transformer, is characterized in that: comprise by port one (Port1) be connected with node 1, port 2 (Port2) is connected with node 2, R1, two elements of L1 are together in series and are connected between node 1,2; R2, two elements of L2 are together in series and are connected between node 2,3; R3, two elements of L3 are together in series and are connected between node 2 and ground; Capacitor C 1 one end is connected with node 1; The other end is connected to the ground and connects; Capacitor C 2 one end are connected with node 3; The other end is connected to the ground and connects; Capacitor C 12 two ends are connected with node 3 with node 1 respectively; Two port internal resistances are 50 ohm.
2. according to the adjustable printed panel transformer described in claim 1, it is characterized in that: element R1, R2 and R3 value equate; Element L1, L2 and L3 value equate; Change capacitor C 1, the value of C2, can regulate the centre frequency of transformer, changes the value of capacitor C 12, can regulate the transmission zero location of transformer.
3. according to the adjustable printed panel transformer described in claim 1 or 2, can be realized by lamped element, finally adopt printing forme circuit board to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420430729.8U CN203984365U (en) | 2014-08-01 | 2014-08-01 | A kind of adjustable printed panel transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420430729.8U CN203984365U (en) | 2014-08-01 | 2014-08-01 | A kind of adjustable printed panel transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203984365U true CN203984365U (en) | 2014-12-03 |
Family
ID=51981779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420430729.8U Expired - Fee Related CN203984365U (en) | 2014-08-01 | 2014-08-01 | A kind of adjustable printed panel transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203984365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104348A (en) * | 2014-08-01 | 2014-10-15 | 王少夫 | Adjustable printing plate transformer |
-
2014
- 2014-08-01 CN CN201420430729.8U patent/CN203984365U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104348A (en) * | 2014-08-01 | 2014-10-15 | 王少夫 | Adjustable printing plate transformer |
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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 |
Granted publication date: 20141203 Termination date: 20150801 |
|
| EXPY | Termination of patent right or utility model |