CN203883784U - A novel filter - Google Patents
A novel filter Download PDFInfo
- Publication number
- CN203883784U CN203883784U CN201420296512.2U CN201420296512U CN203883784U CN 203883784 U CN203883784 U CN 203883784U CN 201420296512 U CN201420296512 U CN 201420296512U CN 203883784 U CN203883784 U CN 203883784U
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- resistor
- resistance
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- amplifier
- novel filter
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Abstract
The utility model discloses a novel filter, and relates to a filter. The novel filter comprises an amplifier F, an adjustable capacitor C, an inductor L, a first resistor R1 and a second resistor R2. A voltage input terminal Vin is connected with a same-phase output terminal of the amplifier F. An output terminal of the amplifier F is separately connected with the one end of the adjustable capacitor C, one end of the inductor L, one end of the first resistor R1, one end of the second resistor R2 and a voltage output terminal Vout. The other ends of the adjustable capacitor C, the inductor L, the first resistor R1 and the second resistor R2 are all grounded. According to the novel filter of the utility model, harmonic wave interferences brought by out-of-band signals and non-linear devices are suppressed, and overall performance of a circuit is raised.
Description
Technical field
The utility model relates to a kind of filter, be specifically related to a kind of Novel Filter.
Background technology
Novel Filter, is mainly used in the electronic equipment of high-frequency work, the high-frequency interferencing signal producing for larger attenuate high frequency electronic equipment.Along with the rapid raising of electronic device works frequency, the frequency of electromagnetic interference is also more and more higher, and interfering frequency can reach hundreds of MHz conventionally, even more than GHz.Because the frequency of voltage or electric current is higher, more easily produce radiation, the interference signal that these frequencies are very high has just caused the problem of radiated interference day by day serious.Therefore, can there is the filter of larger decay to occur to the high-frequency signal of radiated interference in the urgent need to a kind of.
Utility model content
For the deficiency existing in prior art, the utility model object is to be to provide a kind of Novel Filter, has suppressed the humorous wave interference that out of band signal and nonlinear device bring, and has improved the overall performance of circuit.
To achieve these goals, the utility model is to realize by the following technical solutions: Novel Filter, comprise amplifier F, tunable capacitor C, inductance L, the first resistance R 1, the second resistance R 2, voltage input end Vin is connected with the in-phase output end of amplifier F, the output of amplifier F is connected with tunable capacitor C, inductance L, the first resistance R 1, second resistance R 2 one end and voltage output end Vout respectively, tunable capacitor C, inductance L, the first resistance R 1, the equal ground connection of second resistance R 2 other end.
Described inductance L is spiral inductance.
The utility model has suppressed the humorous wave interference that out of band signal and nonlinear device bring, and has improved the overall performance of circuit.
Brief description of the drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
With reference to Fig. 1, this embodiment is by the following technical solutions: Novel Filter, comprise amplifier F, tunable capacitor C, inductance L, the first resistance R 1, the second resistance R 2, voltage input end Vin is connected with the in-phase output end of amplifier F, the output of amplifier F is connected with tunable capacitor C, inductance L, the first resistance R 1, second resistance R 2 one end and voltage output end Vout respectively, tunable capacitor C, inductance L, the first resistance R 1, the equal ground connection of second resistance R 2 other end.
Described inductance L is spiral inductance, and described tunable capacitor C is plane capacitance.
The situation of change of the performance Novel Filter of this embodiment is produced on the medium substrate of differing dielectric constant as the design of filter of primary element during using spiral inductance and capacity plate antenna, when result shows to adopt the medium substrate of high-k, the size of filter can reduce, and performance index also can obtain certain improvement simultaneously.
The utility model has suppressed the humorous wave interference that out of band signal and nonlinear device bring, and has improved the overall performance of circuit.
More than show and described general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a Novel Filter, it is characterized in that, comprise amplifier (F), tunable capacitor (C), inductance (L), the first resistance (R1), the second resistance (R2), voltage input end Vin is connected with the in-phase output end of amplifier (F), the output of amplifier (F) respectively with tunable capacitor (C), inductance (L), the first resistance (R1), the second resistance (R2) one end and voltage output end Vout are connected, tunable capacitor (C), inductance (L), the first resistance (R1), the equal ground connection of the second resistance (R2) other end.
2. a kind of Novel Filter according to claim 1, is characterized in that, described inductance (L) is spiral inductance.
3. a kind of Novel Filter according to claim 1, is characterized in that, described tunable capacitor (C) is plane capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296512.2U CN203883784U (en) | 2014-06-06 | 2014-06-06 | A novel filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296512.2U CN203883784U (en) | 2014-06-06 | 2014-06-06 | A novel filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203883784U true CN203883784U (en) | 2014-10-15 |
Family
ID=51684243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420296512.2U Expired - Fee Related CN203883784U (en) | 2014-06-06 | 2014-06-06 | A novel filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203883784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374877A (en) * | 2016-08-31 | 2017-02-01 | 安徽赛福电子有限公司 | Adjustable photoelectric conversion filter circuit |
-
2014
- 2014-06-06 CN CN201420296512.2U patent/CN203883784U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374877A (en) * | 2016-08-31 | 2017-02-01 | 安徽赛福电子有限公司 | Adjustable photoelectric conversion filter circuit |
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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: 20141015 Termination date: 20150606 |
|
| EXPY | Termination of patent right or utility model |