CN204119188U - A kind of Novel Filter - Google Patents
A kind of Novel Filter Download PDFInfo
- Publication number
- CN204119188U CN204119188U CN201420425186.0U CN201420425186U CN204119188U CN 204119188 U CN204119188 U CN 204119188U CN 201420425186 U CN201420425186 U CN 201420425186U CN 204119188 U CN204119188 U CN 204119188U
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- filter
- inductance
- electric capacity
- utility
- model
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Abstract
The utility model discloses a kind of Novel Filter, this circuit structure is realized by inductance, electric capacity.Mainly utilize Bart to irrigate the most smooth amplitude-frequency characteristic of husband and the maximally flat delay characteristic of Bezier, under same exponent number, produce different responses.Effectively overcome the compatibling problem of the most smooth amplitude-frequency characteristic of design of filter and maximally flat delay characteristic, can ensure that passive filter obtains best filter effect.The important application of chain filter erects bridge exactly between the most smooth amplitude-frequency characteristic of Butterworth function and traditional Bezier maximally flat delay characteristic.The utility model can be widely used in WCDMA power of mobile communication amplifier, radar antenna etc. to the strict place of signal performance requirement.Can inhibition zone external noise, improve the stability of electronic circuit.
Description
Technical field
The utility model belongs to communication and electronic application field, particularly in filtering and matching network, has important application.
Background technology
In the last few years, a series of research about filter circuit had been carried out both at home and abroad.Achieve a lot of achievement in research, be especially used in mobile communication technology, be used in power-amplifier front-end and radar antenna feed part, filter circuit effectively can solve the large problem of system passband external noise.But its project organization can only use in specific frequency range, and bandwidth is less, make system bulk comparatively large, and versatility is not strong.Simultaneously traditional filter circuit is due to the problem of its circuit structure, and make temperature sensitivity extremely strong, cannot overcome the compatibling problem of the most smooth amplitude-frequency characteristic of design of filter and maximally flat delay characteristic, 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 the chain filter circuit that a kind of structure is simple, volume is little, stability is high.
The technical scheme realizing the utility model object is: a kind of chain filter, comprises port one (Port1), port 2 (Port2); Inductance L 1, L2, L3, electric capacity C1, C2, C3 realize; One end of inductance L 1 is connected with port one (Port1), the other end and inductance L 2, and electric capacity C1 is connected; The other end of inductance L 2 and electric capacity C2, inductance L 3 is connected; The other end of electric capacity C1 is connected to the ground and connects; One end of inductance L 3 is connected; The other end of electric capacity C1 is connected with power supply negative terminal; The other end of inductance L 2 and electric capacity C2, the other end of inductance L 3 and port 2 (Port2), electric capacity C3 is connected; The other end of electric capacity C3 is connected to the ground and connects, and input port 1 (Port1), output port 2 (Port2) all connect 1 ohmage.
Compared with prior art, the utility model provides the feature that a kind of structure is simple, volume is little, stability is high.
Accompanying drawing explanation
Fig. 1 is a kind of Novel Filter of the utility model.
Fig. 2 is a kind of Novel Filter S parameter of the utility model characteristic curve.
Fig. 3 is a kind of Novel Filter phase characteristic curve of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Composition graphs 1, the utility model is a kind of Novel Filter, comprises port one (Port1), port 2 (Port2); Inductance L 1, L2, L3, electric capacity C1, C2, C3 realize; One end of inductance L 1 is connected with port one (Port1), the other end and inductance L 2, and electric capacity C1 is connected; The other end of inductance L 2 and electric capacity C2, inductance L 3 is connected; The other end of electric capacity C1 is connected to the ground and connects; One end of inductance L 3 is connected; The other end of electric capacity C1 is connected with power supply negative terminal; The other end of inductance L 2 and electric capacity C2, the other end of inductance L 3 and port 2 (Port2), electric capacity C3 is connected; The other end of electric capacity C3 is connected to the ground and connects, and input port 1 (Port1), output port 2 (Port2) all connect 1 ohmage.When component value is L1=1.452H C1=1.67F, R1=R2=1 Ω, L2=1.562H C2=1.189F L3=0.452H, its S parameter characteristic curve and phase characteristic curve are distinguished as shown in Figure 2 and Figure 3,
As apparent from Fig. 2 can, from Butterworth to Bessel function, can provide different chain type parameters go select.
The utility model, for same exponent number, passband ripple, bandwidth, has different responses.As can be seen from Figure 3, this filter has maximally flat delay characteristic.This filter oneself be used successfully in certain pulse receiver, through the modulation and demodulation of FSK, Output rusults is good.Result is used to show that this device has good degree of suppression to receiver modulating pulse and noise level.Chain filter key property is low cost, high-performance, can carry out different application with exponent number function.Chain filter erects bridge between the most smooth amplitude-frequency characteristic of Butterworth and traditional Bezier maximally flat delay characteristic.
Claims (1)
1. a Novel Filter, is characterized in that: comprise port one (Port1), port 2 (Port2); Inductance
, electric capacity
,
realize; Inductance
one end be connected with port one (Port1), the other end and inductance
, electric capacity
be connected; Inductance
the other end and electric capacity
, inductance
be connected; Electric capacity
the other end be connected to the ground and connect; Inductance
one end be connected; Electric capacity
the other end be connected with power supply negative terminal; Inductance
the other end and electric capacity
, inductance
the other end and port 2 (Port2), electric capacity
be connected; Electric capacity
the other end be connected to the ground and connect, input port 1 (Port1), output port 2 (Port2) all connect 1 ohmage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425186.0U CN204119188U (en) | 2014-07-31 | 2014-07-31 | A kind of Novel Filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425186.0U CN204119188U (en) | 2014-07-31 | 2014-07-31 | A kind of Novel Filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204119188U true CN204119188U (en) | 2015-01-21 |
Family
ID=52336463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420425186.0U Expired - Fee Related CN204119188U (en) | 2014-07-31 | 2014-07-31 | A kind of Novel Filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204119188U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124942A (en) * | 2014-07-31 | 2014-10-29 | 王少夫 | Novel filter |
| CN106209018A (en) * | 2016-08-01 | 2016-12-07 | 合肥佳瑞林电子技术有限公司 | A kind of high-power band filter of ground radar |
| CN106209019A (en) * | 2016-08-01 | 2016-12-07 | 合肥佳瑞林电子技术有限公司 | A kind of radar low-power consumption band filter |
-
2014
- 2014-07-31 CN CN201420425186.0U patent/CN204119188U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124942A (en) * | 2014-07-31 | 2014-10-29 | 王少夫 | Novel filter |
| CN106209018A (en) * | 2016-08-01 | 2016-12-07 | 合肥佳瑞林电子技术有限公司 | A kind of high-power band filter of ground radar |
| CN106209019A (en) * | 2016-08-01 | 2016-12-07 | 合肥佳瑞林电子技术有限公司 | A kind of radar low-power consumption band filter |
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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: 20150121 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |