CN207283511U - A kind of high-pass filter - Google Patents
A kind of high-pass filter Download PDFInfo
- Publication number
- CN207283511U CN207283511U CN201721182266.8U CN201721182266U CN207283511U CN 207283511 U CN207283511 U CN 207283511U CN 201721182266 U CN201721182266 U CN 201721182266U CN 207283511 U CN207283511 U CN 207283511U
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- China
- Prior art keywords
- inductance
- capacitance
- main road
- mutual inductance
- circuits
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Abstract
The utility model discloses a kind of high-pass filter, it includes main road and LC mutual inductance circuits, and the filter capacitor of series connection is included on main road, and one end of main road receives input signal, and the other end exports filtered signal；The filter capacitor connected on main road is equipped with node between any two, LC mutual inductance circuits are connected with wherein at least one node, LC mutual inductance circuits include mutual inductance inductance and the Inductance and Capacitance connected with mutual inductance inductance, Inductance and Capacitance is multiple Inductance and Capacitances in parallel, connected between mutual inductance inductance and Inductance and Capacitance by single pole multiple throw, the other end ground connection of Inductance and Capacitance.Filter construction is simple, and the Inductance and Capacitance in LC mutual inductance circuits is multiple capacitances in parallel, and capacitance adjustment is carried out by single pole multiple throw, and higan bana and adjustment so as to fulfill filtering parameter, easy to use and accommodation accuracy is high, and wave filter inband flatness is high.
Description
Technical field
Wave filter technology field is the utility model is related to, particularly a kind of high-pass filter.
Background technology
In recent years, wireless communication technique is fast-developing, and technological means is maked rapid progress, especially mobile technology and broadband wireless
Access technology, commercially achieves great achievement, and the demand of frequency resource is also constantly being increased.Ever-increasing frequency money
Source demand causes the system for being operated in successive bands very much, thus proposes requirements at the higher level to wave filter.Current lump type filtering
Device has small when frequency is relatively low, is easy to make and the characteristics of easy to debug, application is wider.
High-pass filter can filter out unnecessary low-frequency component in signal, remove low-frequency disturbance.In active electric power carrier wave
A high-pass filter is added between the output terminal and power grid of device can absorb high frequency electric, can reduce active electric power Carrier
Middle high power tube caused high-frequency current component in switching process, so as to reduce the influence to power grid.Existing high pass filter
Ripple device both for a certain power grid impedance value design, its component parameters and element installation be all it is fixed, can not be according to reality
Demand that border uses adjusts filtering parameter, thus in use can it is poor there are filter effect, using limitation it is big the shortcomings of.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, there is provided a kind of high-pass filter, the wave filter knot
Structure is simple, and the Inductance and Capacitance in LC mutual inductance circuits is multiple capacitances in parallel, and capacitance adjustment is carried out by single pole multiple throw, from
And realize higan bana and the adjustment of filtering parameter, easy to use and accommodation accuracy is high.
The purpose of this utility model is achieved through the following technical solutions：A kind of high-pass filter, it includes main road
With LC mutual inductance circuits, the filter capacitor of series connection is included on the main road, one end of the main road receives input signal, the other end
Export filtered signal；The filter capacitor connected on the main road is equipped with node, wherein at least one node between any two
On be connected with LC mutual inductance circuits, the LC mutual inductance circuits include mutual inductance inductance and the Inductance and Capacitance connected with mutual inductance inductance, institute
The Inductance and Capacitance stated is multiple Inductance and Capacitances in parallel, is connected between mutual inductance inductance and Inductance and Capacitance by single pole multiple throw,
The other end ground connection of Inductance and Capacitance.
The Inductance and Capacitance is the Inductance and Capacitance of 4 more parallels.
The filter capacitor connected on the main road is no less than 2.
A damping resistance is also associated between the Inductance and Capacitance and ground.
The beneficial effects of the utility model are：The utility model discloses a kind of high-pass filter, filter construction letter
Single, the Inductance and Capacitance in LC mutual inductance circuits is multiple capacitances in parallel, and capacitance adjustment is carried out by single pole multiple throw, so that real
The higan bana of existing filtering parameter and adjustment, easy to use and accommodation accuracy is high, and wave filter inband flatness is high.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
In figure, the first capacitances of C1-, the second capacitances of C2-, the 3rd capacitances of C3-, the 4th capacitances of C4-, the 5th capacitances of C5-, C6-
6th capacitance, the 7th capacitances of C7-, the 8th capacitances of C8-, the 9th capacitances of C9-, the tenth capacitances of C10-, the first inductance of L1-, K1- hilted broadswords
Multithrow switch, R1- first resistors.
Embodiment
The technical solution of the utility model, but the scope of protection of the utility model are described in further detail below in conjunction with the accompanying drawings
It is not limited to as described below.
A kind of high-pass filter, it includes main road and LC mutual inductance circuits, and the filter capacitor of series connection is included on the main road,
One end of the main road receives input signal, and the other end exports filtered signal；The filter capacitor connected on the main road
Node is equipped between any two, LC mutual inductance circuits are connected with wherein at least one node, and the LC mutual inductance circuits include mutual inductance
Inductance and the Inductance and Capacitance connected with mutual inductance inductance, the Inductance and Capacitance are multiple Inductance and Capacitances in parallel, mutual inductance inductance with
Connected between Inductance and Capacitance by single pole multiple throw, the other end ground connection of Inductance and Capacitance.
The Inductance and Capacitance is the Inductance and Capacitance of 4 more parallels.
The filter capacitor connected on the main road is no less than 2.
A damping resistance is also associated between the Inductance and Capacitance and ground.
As shown in Figure 1, include the first capacitance C1 of series connection, the second capacitance on the main road of the high-pass filter of the utility model
C2, the 3rd capacitance C3, the 4th capacitance C4, the 5th capacitance C5 and the 6th capacitance C6, between the first capacitance C1 and the second capacitance C2
LC mutual inductance circuits are connected with node, one end of the first inductance L1 is connected to node, and the other end is connected by single pole multiple throw K1
It is connected to the 7th capacitance C7, the 8th capacitance C8, the 9th capacitance C9 of parallel connection, one end of the tenth capacitance C10, the 7th capacitance in parallel
The other end of C7, the 8th capacitance C8, the 9th capacitance C9, the tenth capacitance C10 after first resistor R1 by being grounded.
The filter construction of the utility model is simple, and the Inductance and Capacitance in LC mutual inductance circuits is multiple capacitances in parallel, leads to
Cross single pole multiple throw and carry out capacitance adjustment, higan bana and adjustment so as to fulfill filtering parameter, easy to use and adjusting is accurately
Degree is high, and wave filter inband flatness is high.
Claims (4)
- A kind of 1. high-pass filter, it is characterised in that：It includes main road and LC mutual inductance circuits, includes series connection on the main road Filter capacitor, one end of the main road receive input signal, and the other end exports filtered signal；Connect on the main road Filter capacitor is equipped with node between any two, and LC mutual inductance circuits, the LC mutual inductance circuits are connected with wherein at least one node Including mutual inductance inductance and the Inductance and Capacitance connected with mutual inductance inductance, the Inductance and Capacitance is multiple Inductance and Capacitances in parallel, mutually Connected between electrification sense and Inductance and Capacitance by single pole multiple throw, the other end ground connection of Inductance and Capacitance.
- A kind of 2. high-pass filter according to claim 1, it is characterised in that：The Inductance and Capacitance for more than 4 simultaneously The Inductance and Capacitance of connection.
- A kind of 3. high-pass filter according to claim 1, it is characterised in that：The filter capacitor connected on the main road No less than 2.
- A kind of 4. high-pass filter according to claim 1, it is characterised in that：Also connect between the Inductance and Capacitance and ground It is connected to a damping resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721182266.8U CN207283511U (en) | 2017-09-15 | 2017-09-15 | A kind of high-pass filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721182266.8U CN207283511U (en) | 2017-09-15 | 2017-09-15 | A kind of high-pass filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207283511U true CN207283511U (en) | 2018-04-27 |
Family
ID=61989374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721182266.8U Expired - Fee Related CN207283511U (en) | 2017-09-15 | 2017-09-15 | A kind of high-pass filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207283511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302161A (en) * | 2018-08-31 | 2019-02-01 | 维沃移动通信有限公司 | Tunable filter circuit and terminal device |
-
2017
- 2017-09-15 CN CN201721182266.8U patent/CN207283511U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302161A (en) * | 2018-08-31 | 2019-02-01 | 维沃移动通信有限公司 | Tunable filter circuit and terminal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180427 Termination date: 20180915 |