CN109585984A - A kind of Broadband bandstop filter of no RLC periodic structure - Google Patents
A kind of Broadband bandstop filter of no RLC periodic structure Download PDFInfo
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- CN109585984A CN109585984A CN201811257571.8A CN201811257571A CN109585984A CN 109585984 A CN109585984 A CN 109585984A CN 201811257571 A CN201811257571 A CN 201811257571A CN 109585984 A CN109585984 A CN 109585984A
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- conducting wire
- mainboard
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- tail portion
- stem
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
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Abstract
The invention discloses a kind of Broadband bandstop filters of no RLC periodic structure, comprising: mainboard, two sides are respectively equipped with symmetrical the first mainboard conducting wire and the second mainboard conducting wire；Stem plate, two sides are respectively equipped with symmetrical the first stem plate conducting wire and the second stem plate conducting wire, the stem plate and are connected on the mainboard；Tail portion plate, two sides are respectively equipped with symmetrical the first tail portion plate conducting wire and the second tail portion plate conducting wire, the tail portion plate is connected on the mainboard, wherein, the length of the first stem plate conducting wire is less than the length of the first tail portion plate conducting wire, and the length of the second stem plate conducting wire is less than the length of the second tail portion plate conducting wire.Bandreject filtering range is adjusted flexibly by the length of the stem plate conducting wire of control stem plate and the tail portion plate conducting wire of tail portion plate in Broadband bandstop filter provided by the invention.
Description
Technical field
The present invention relates to filter fields, and in particular to a kind of Broadband bandstop filter of no RLC periodic structure.
Background technique
Filter is a kind of electronic device of limit device working frequency.Bandstop filter can limit a certain range frequency
Signal pass through, using the characteristic of filter, frequency-selecting can be carried out to signal.Most of passive filter on the market is at present
It is realized with resistance, capacitor, inductance.Capacitor and inductor quality on the market is irregular, if input signal is radiofrequency signal, electricity
Hold and inductance is possible to meeting and lose filtering characteristic because of its upper operational frequency limit problem.
In addition, general non active band exclusion filter bandwidth is smaller, only small range frequency band is effectively filtered.
Summary of the invention
The purpose of the present invention is to provide a kind of Broadband bandstop filter of no RLC periodic structure, adjustable band resistance
The range of filtering.
For this purpose, the present invention provides a kind of Broadband bandstop filters, comprising:
Mainboard, two sides are respectively equipped with symmetrical the first mainboard conducting wire and the second mainboard conducting wire；
Stem plate, two sides are respectively equipped with symmetrical the first stem plate conducting wire and the second stem plate conducting wire,
The stem plate is connected on the mainboard, and the first stem plate conducting wire is electrically connected with the first mainboard conducting wire
It connects, the second stem plate conducting wire is electrically connected with the second mainboard conducting wire；
Tail portion plate, two sides are respectively equipped with symmetrical the first tail portion plate conducting wire and the second tail portion plate conducting wire,
The tail portion plate is connected on the mainboard, and the first tail portion plate conducting wire is electrically connected with the first mainboard conducting wire
It connects, the second tail portion plate conducting wire is electrically connected with the second mainboard conducting wire, so that the first stem plate conducting wire and
One tail portion plate conducting wire is parallel to the first mainboard conducting wire respectively, and the second stem plate conducting wire and the second tail portion plate are led
Line is parallel to the second mainboard conducting wire respectively, wherein the length of the first stem plate conducting wire is less than first tail portion
The length of plate conducting wire, the length of the second stem plate conducting wire are less than the length of the second tail portion plate conducting wire.
Preferably, further includes: shell, for accommodating the mainboard, stem plate and tail portion plate.
Preferably, the shell is the shell made of aluminum material.
Preferably, the mainboard further includes the first connecting pin and second connection end, and first connecting pin and second connect
End is located at the both ends of the mainboard, and first connecting pin is electrically connected with one end of the first mainboard conducting wire, described
Second connection end is electrically connected with the other end of the first mainboard conducting wire；
The shell is equipped with first through hole and the second through-hole, is equipped with the first connector in first through hole, in second through-hole
Equipped with the second connector, first connector and the second connector include ground wire and connecting line, the connecting line of first connector and institute
The electrical connection of the first connecting pin is stated, ground wire is electrically connected with the second mainboard conducting wire；The connecting line of second connector and described the
The electrical connection of two connecting pins, ground wire are electrically connected with the second mainboard conducting wire.
Preferably, the mainboard further includes multiple groups mainboard through-hole, every group of mainboard through-hole be located at the first mainboard conducting wire and
The two sides of second mainboard conducting wire,
The first stem plate conducting wire is electrically connected by the mainboard through-hole with the first mainboard conducting wire, and described second
Stem plate conducting wire is electrically connected by the mainboard through-hole with the second mainboard conducting wire；The first tail portion plate conducting wire passes through
The mainboard through-hole is electrically connected with the first mainboard conducting wire, and the second tail portion plate conducting wire passes through the mainboard through-hole and institute
State the electrical connection of the second mainboard conducting wire.
It preferably, further include several intermediate plates, the two sides of the intermediate plate are respectively equipped with symmetrical first
Intermediate plate conducting wire and the second intermediate plate conducting wire, the intermediate plate are connected on the mainboard, and among described first
Plate conducting wire is electrically connected with the first mainboard conducting wire, and the second intermediate plate conducting wire is electrically connected with the second mainboard conducting wire
It connects, so that the first intermediate plate conducting wire, the first stem plate conducting wire and the first tail portion plate conductor in parallel are in described first
Mainboard conducting wire, the second intermediate plate conducting wire, the second stem plate conducting wire and the second tail portion plate conductor in parallel are in described
Two mainboard conducting wires,
Wherein, the length of the first of the intermediate plate the intermediate plate conducting wire is from the stem plate to the tail portion plate
Sequentially, and the length of the first intermediate plate conducting wire is greater than the length of the first stem plate conducting wire, is less than
The length of the first tail portion plate conducting wire.
Preferably, the distance between mainboard through-hole described in every group is equal, and the distance between mainboard through-hole s described in every group
Are as follows:
S=l/n
Wherein, l is the length of the first mainboard conducting wire, and n is that the intermediate plate and the stem plate and tail portion are inserted
The sum of quantity of plate.
Preferably, the stem plate, tail portion plate and intermediate plate are equipped with connection through-hole, the connection through-hole and institute
State the electrical connection of mainboard through-hole.
Preferably, the both ends of the mainboard are equipped with jack, and the stem plate, tail portion plate and intermediate plate are equipped with insertion
End, the stem plate, tail portion plate and intermediate plate are inserted into the jack by the insertion end and are connected to the mainboard.
Preferably, the center of end of the tail portion plate close to the mainboard is equipped with and first tail portion plate
The end of the plate intermediate throughholes of conducting wire electrical connection, the mainboard is equipped among the mainboard being electrically connected with the first mainboard conducting wire
Through-hole, the plate intermediate throughholes are electrically connected with the mainboard intermediate throughholes so that the first tail portion plate conducting wire with it is described
The electrical connection of first mainboard conducting wire.
Compared with prior art, the Broadband bandstop filter of no RLC periodic structure provided by the invention is if any following excellent
Point:
1) present invention is the first tail portion plate by the first stem plate conducting wire and tail portion plate that control stem plate
The length of conducting wire is so as to being adjusted flexibly bandreject filtering range.Moreover, above-mentioned broadband width filter eliminates general nothing
Resistance, capacitor, inductance in source filter, make this filter still can preferably work in radio frequency.
2) in addition, the stem plate of the filter, tail portion plate and intermediate plate are erected on mainboard, so that filter
Volume size is effectively reduced.
Detailed description of the invention
Fig. 1 is that the structure of the Broadband bandstop filter of no RLC periodic structure of the present invention in one embodiment is shown
It is intended to.
Fig. 2 is the structural schematic diagram of the mainboard of the Broadband bandstop filter of no RLC periodic structure of the present invention.
Fig. 3 is the structural schematic diagram of the stem plate of the Broadband bandstop filter of no RLC periodic structure of the present invention.
Fig. 4 is the structural schematic diagram of the tail portion plate of the Broadband bandstop filter of no RLC periodic structure of the present invention.
Fig. 5 is the electrical block diagram of the Broadband bandstop filter of no RLC periodic structure of the present invention.
Fig. 6 is the simulation result diagram of the Broadband bandstop filter shown in Fig. 5.
Accompanying drawings symbol description is as follows:
Specific embodiment
With reference to the accompanying drawing, the present invention will be further described.
Fig. 1 is the knot of the Broadband bandstop filter of no RLC periodic structure of the present invention in one embodiment
Structure schematic diagram.As shown in Figure 1, the Broadband bandstop filter without RLC periodic structure includes mainboard 2, stem plate 3, centre
Plate 5, tail portion plate 4 and shell 1.
The shell 1 is the shell 1 of aluminum material production, inner hollow, substantially spatially cube.The mainboard 2 is laid in
In the shell 1, the stem plate 3, intermediate plate 5 and tail portion plate 4 perpendicular to mainboard 2 and are fixed on mainboard 2.Institute
Shell 1 is stated equipped with first through hole 11 and the second through-hole 12, first through hole 11 is interior to be equipped with the first connector, sets in second through-hole 12
There is the second connector, first connector is electrically connected with first connecting pin 21, second connector and the second connection end
22 electrical connections.In present embodiment, first connector and the second connector are sub-miniature A connector, including connecting line and ground wire, described the
The connecting line of one connector is connect with the first connecting pin, and the connecting line of the second connector is connect with second connection end.In present embodiment,
First connecting pin 21 and second connection end 22 can be output end, be also possible to input terminal, and the two does not have directionality.
Fig. 2 is the structural schematic diagram of the mainboard 2 of the Broadband bandstop filter of no RLC periodic structure.As shown in Fig. 2, institute
Stating mainboard 2 is flat circuit board, and at least one side is equipped with the first connecting pin 21, second connection end 22, the first mainboard conducting wire
23, the second mainboard conducting wire (not shown), multiple groups mainboard through-hole 24 and jack 25.First connecting pin 21 and second connection end 22
It is respectively arranged on the side of mainboard 2 and is located at the both ends of the mainboard 2.It first connecting pin 21 and is led with first mainboard
One end of line 23 is electrically connected, and second connection end 22 is electrically connected with the other end of the first mainboard conducting wire 23.Second mainboard
Conducting wire and first interface and the second connector are electrically connected to ground.First mainboard conducting wire 23 and the second mainboard conducting wire are symmetrical (i.e.
First mainboard conducting wire 23 is identical with length with the walks wire shaped of the second mainboard conducting wire), it is respectively arranged on the two sides of mainboard 2.It is described
Jack 25 is located at the both ends of the mainboard 2, for connecting stem plate 3, intermediate plate 5 and tail portion plate 4.
The mainboard through-hole 24 divides for multiple groups, and every group of mainboard through-hole 24 is located at the first mainboard conducting wire 23 and the second mainboard
It conducting wire two sides and is electrically connected with the first mainboard conducting wire 23 and the second mainboard conducting wire, 31 He of the first stem plate conducting wire
First tail portion plate conducting wire 41 is electrically connected by the mainboard through-hole 24 with the first mainboard conducting wire 23 respectively, and described second is first
Portion's plate conducting wire and the second tail portion plate conducting wire pass through the mainboard through-hole 24 respectively and are electrically connected with the second mainboard conducting wire.Often
The distance between the group mainboard through-hole 24 is equal, and the distance between mainboard through-hole 24 s described in every group are as follows:
S=l/n
Wherein, l is the length of the first mainboard conducting wire 23, and n is the intermediate plate 5 and the stem plate 3 and tail
The sum of the quantity of portion's plate 4.
Fig. 3 is the structural schematic diagram of the stem plate 3 of the Broadband bandstop filter of no RLC periodic structure.Such as Fig. 3 institute
Show, the stem plate 3 is flat circuit board, and two sides are equipped with the first stem plate conducting wire 31, the second stem plate is led
Line (not shown) and connection through-hole 32.The first stem plate conducting wire 31 and the second stem plate conducting wire are to fold back and forth
Snakelike broken line, and symmetrically (i.e. the walks wire shaped of the first stem plate conducting wire 31 and the second stem plate conducting wire and
Length is identical), those skilled in the art can according to need the first stem plate conducting wire 31 of setting and the second stem plate conducting wire
The density of snakelike cabling is to adjust the length of the first stem plate conducting wire 31 and the second stem plate conducting wire.The connection through-hole 32
It is electrically connected with the mainboard through-hole 24, in present embodiment, the connection through-hole 32 passes through row's needle weldering with the mainboard through-hole 24
It connects, so that the first stem plate conducting wire 31 is electrically connected with the first mainboard conducting wire 23, the second stem plate conducting wire
It is electrically connected with the second mainboard conducting wire.The end of the stem plate 3 is equipped with insertion end 33, and the insertion end 33 protrudes from institute
The edge of stem plate 3 is stated, the stem plate 3 is inserted into the jack 25 by the insertion end 33 and is connected to the mainboard
2。
Fig. 4 is the structural schematic diagram of the tail portion plate 4 of the Broadband bandstop filter of no RLC periodic structure.Such as Fig. 4 institute
Show, the tail portion plate 4 is flat circuit board, and two sides are equipped with the first tail portion plate conducting wire 41, the second tail portion plate is led
Line (not shown) and connection through-hole 42.The first tail portion plate conducting wire 41, the second tail portion plate conducting wire are symmetrical (i.e.
First tail portion plate conducting wire 41 is identical with length with the walks wire shaped of the second tail portion plate conducting wire), it is snakelike to fold back and forth
Broken line, those skilled in the art can according to need setting the first tail portion plate conducting wire 41, the second tail portion plate conducting wire it is snakelike walk
The density of line is to adjust the length of the first tail portion plate conducting wire 41 and the second tail portion plate conducting wire, wherein first stem is inserted
The length of plate conducting wire 31 is less than the length of the first tail portion plate conducting wire 41, and the length of the second stem plate conducting wire is less than
The length of the second tail portion plate conducting wire.The connection through-hole 42 is electrically connected with the mainboard through-hole 24, so that described first
Tail portion plate conducting wire 41 is electrically connected with the first mainboard conducting wire 23, and the second tail portion plate conducting wire is led with second mainboard
Line electrical connection.The tail portion plate 4 is equipped with and the first tail portion plate conducting wire close to the center of the end of the mainboard 2
The plate intermediate throughholes 44 of 41 midpoint electrical connection, the end of the mainboard 2 is equipped with to be electrically connected with the first mainboard conducting wire 23
Mainboard intermediate throughholes 26, plate intermediate throughholes 44 are electrically connected with mainboard intermediate throughholes 26, the mainboard intermediate throughholes 26 and institute
State the electrical connection of second connection end 22.In present embodiment, the mainboard intermediate throughholes 26 and institute can be welded to connect by row's needle
State second connection end 22.The end of the tail portion plate 4 is equipped with insertion end 43, and the insertion end 43 protrudes from the tail portion plate
4 edge, the tail portion plate 4 are inserted into the jack 25 by the insertion end 43 and are connected to the mainboard 2.
In present embodiment, also it is provided among one or more to stacking between stem plate 3 and tail portion plate 4
Plate 5.The two sides of the intermediate plate 5 are equipped with the first intermediate plate conducting wire, the second intermediate plate conducting wire, connection through-hole.Institute
It states the first intermediate plate conducting wire and the second intermediate plate conducting wire is symmetrical, shape and equal length, and the shape of the two is come
The folded snakelike broken line of inflection.Those skilled in the art can according to need the first intermediate plate conducting wire of setting and the second intermediate plate
The density of the snakelike cabling of conducting wire is to adjust the length of the first intermediate plate conducting wire and the second intermediate plate conducting wire, wherein described
The length of the intermediate plate conducting wire of the first of intermediate plate 5 from the stem plate 3 to the tail portion plate 4 sequentially, and
And the length of the first intermediate plate conducting wire of the intermediate plate 5 is greater than the length of the first stem plate conducting wire 31, is less than
The length of the first tail portion plate conducting wire 41.Likewise, the length of the second intermediate plate conducting wire of the intermediate plate 5 is from institute
It states stem plate 3 and arrives the tail portion plate 4 sequentially, and the length of the second intermediate plate conducting wire of the intermediate plate 5
Degree is greater than the length of the second stem plate conducting wire, less than the length of the second tail portion plate conducting wire.
Preferably, the first stem plate conducting wire 31, the first intermediate plate conducting wire and the first tail portion plate conducting wire 41
Length identical length incremented by successively, the second stem plate conducting wire, the second intermediate plate conducting wire and the second tail portion plate are led
The length of line identical length incremented by successively, is used to form periodic structure.In present embodiment, the first stem plate is led
Line 31, the first intermediate plate conducting wire, the first tail portion plate conducting wire 41 and the first mainboard conducting wire 23 and the second stem plate are led
Line, the second intermediate plate conducting wire, the second tail portion plate conducting wire and the second mainboard conducting wire are realized by way of spraying tin.
The connection through-hole is electrically connected with the mainboard through-hole 24, so that the first intermediate plate conducting wire and described first
Mainboard conducting wire 23 is electrically connected, and the second intermediate plate conducting wire is electrically connected with the second mainboard conducting wire.The intermediate plate 5 is set
There is insertion end, the insertion end protrudes from the edge of the tail portion plate 4, and the intermediate plate 5 is inserted by the insertion end
The mainboard 2 is connected in the jack 25.
In present embodiment, the frequency range of the stopband of the Broadband bandstop filter and the first stem plate conducting wire 31
Length is related with the length of the first tail portion plate conducting wire 41, and the corresponding wavelength of stop-band frequency is equal to the first stem plate conducting wire 31
Just there is stopband appearance when the half of the sum of length and the length of the first tail portion plate conducting wire 41, i.e., stopband range is in 2C/L1~2C/
Between L2, wherein C is the light velocity, and L1 is the length of the first tail portion plate conducting wire 41, and L2 is the length of the first stem plate conducting wire 31,
Range can be hindered to adjust band by adjusting the length of the first stem plate conducting wire and the first tail portion plate conducting wire, such as L2 can be very
Short, L1 can be very long.
The manufacturing process of the Broadband bandstop filter of above-mentioned no RLC periodic structure is described below.
Firstly, formulating the shell 1 of the Broadband bandstop filter without RLC periodic structure of suitable dimension.
Then, above-mentioned mainboard 2 and stem plate 3, tail portion plate 4 and several different intermediate plates 5 are made, stem is inserted
Plate 3, tail portion plate 4 are different with the conductor length of intermediate plate 5, and tail portion plate 4 is equipped with plate intermediate throughholes 44.
Then, the first connector and the second connector are welded on to the first connecting pin 21 and the second connection end 22 of mainboard 2；
Then, stem plate 3, intermediate plate 5 and tail portion plate 4 are connected to by insertion end to the jack of mainboard 2 respectively
25, stem plate 3, intermediate plate 5 and tail portion plate 4 are fixed on mainboard 2；
Then, by the connection through-hole of stem plate 3, intermediate plate 5 and tail portion plate 4 respectively with the mainboard through-hole of mainboard 2
24 by row's needle welding, thus by the first stem plate conducting wire 31, the first intermediate plate conducting wire and the first tail portion plate conducting wire 41
It is parallel to the first mainboard conducting wire 23, the second stem plate conducting wire, the second intermediate plate conducting wire and the second tail portion plate conducting wire respectively
It is parallel to the connection of the second mainboard conducting wire respectively.In this way, the first intermediate plate conducting wire, the first stem plate conducting wire 31 and first
Tail portion plate conducting wire 41 is separately connected the first mainboard conducting wire 23 and in parallel between each other, the second intermediate plate conducting wire, the
Two stem plate conducting wires and the second tail portion plate conducting wire are connect respectively with the second mainboard conducting wire and parallel connection between each other.
Finally, by stem plate 3, intermediate plate 5, tail portion plate 4 and the encapsulation to shell 1 of mainboard 2, the first connector and
Second connector is drawn by first through hole 11 and the second through-hole 12.
Fig. 5 is the electrical block diagram of Broadband bandstop filter.Broadband bandstop filter shown in Fig. 5 includes 1 head
Portion's plate, 5 intermediate plates and 1 tail portion plate.In figure, the first connecting pin is connect with the first mainboard conducting wire, second connection end
It is connected to the midpoint of the first tail portion plate conducting wire, the first stem plate conducting wire 31, the first intermediate plate conducting wire and the first tail portion are inserted
Plate conducting wire 41 is parallel to the first mainboard conducting wire 23 (as shown in Figure 5) respectively.Second stem plate conducting wire, the second intermediate plate conducting wire
It is parallel to the second mainboard conducting wire respectively with the second tail portion plate conducting wire and connects (not shown).
In use, inputting a signal into end is connected to the first connecting pin, signal output end is connected to second connection end, and second is first
Portion's plate conducting wire, the second intermediate plate conducting wire, the second tail portion plate conducting wire are parallel to the second mainboard conducting wire respectively and connect and connect
Ground.Fig. 6 is the simulation result diagram of the Broadband bandstop filter shown in Fig. 5.As seen from Figure 6, pass through stem plate 3, intermediate plate
5, tail portion plate 4 inserts on mainboard 2, stem plate 3, intermediate plate 5, tail portion plate 4 conductor length by the stem plate
Sequentially to the tail portion plate, it is achieved in periodic structure, periodic structure can be in certain special frequency channels
Now apparent Prague band gap characteristic can be used to realize the performance of stopband.
The Broadband bandstop filter without RLC periodic structure that present embodiment provides is for from very high frequency to very low
Frequency can effectively filter, abandoned the resistance, capacitor, inductance of traditional passive filter, realized a kind of resistance of broadband band
Filter.Such bandstop filter high degree solves capacitor, inductance loses in radio-frequency region due to having upper operational frequency limit
The problem of removing filtering characteristic improves filter effect of the passive filter in radio-frequency region.In addition, the Broadband bandstop filter
Using three-dimensional structure is erect, filter volume size is effectively reduced.
It should be understood that the invention is not limited to above embodiment, it is all to various changes or modifications of the invention not
Be detached from the spirit and scope of the present invention, if these modification and variations belong to claim and equivalent technologies range of the invention it
Interior, then the present invention is also implied that comprising these modification and variations.
Claims (10)
1. a kind of Broadband bandstop filter of no RLC periodic structure characterized by comprising
Mainboard, two sides are respectively equipped with symmetrical the first mainboard conducting wire and the second mainboard conducting wire；
Stem plate, two sides are respectively equipped with symmetrical the first stem plate conducting wire and the second stem plate conducting wire, described
Stem plate is connected on the mainboard, and the first stem plate conducting wire is electrically connected with the first mainboard conducting wire, institute
The second stem plate conducting wire is stated to be electrically connected with the second mainboard conducting wire；
Tail portion plate, two sides are respectively equipped with symmetrical the first tail portion plate conducting wire and the second tail portion plate conducting wire, described
Tail portion plate is connected on the mainboard, and the first tail portion plate conducting wire is electrically connected with the first mainboard conducting wire, institute
It states the second tail portion plate conducting wire to be electrically connected with the second mainboard conducting wire, so that the first stem plate conducting wire and the first tail portion
Plate conducting wire is parallel to the first mainboard conducting wire, the second stem plate conducting wire and the second tail portion plate conducting wire difference respectively
It is parallel to the second mainboard conducting wire, wherein the length of the first stem plate conducting wire is less than first tail portion plate and leads
The length of line, the length of the second stem plate conducting wire are less than the length of the second tail portion plate conducting wire.
2. the Broadband bandstop filter as described in claim 1 without RLC periodic structure, which is characterized in that further include:
Shell, for accommodating the mainboard, stem plate and tail portion plate.
3. the Broadband bandstop filter as claimed in claim 2 without RLC periodic structure, it is characterised in that: the shell is
The shell made of aluminum material.
4. the Broadband bandstop filter as claimed in claim 3 without RLC periodic structure, it is characterised in that: the mainboard is also
Including the first connecting pin and second connection end, first connecting pin and second connection end are located at the both ends of the mainboard
Portion, first connecting pin are electrically connected with one end of the first mainboard conducting wire, the second connection end and first mainboard
The other end of conducting wire is electrically connected；
The shell is equipped with first through hole and the second through-hole, and the first connector is equipped in first through hole, is equipped in second through-hole
Second connector, first connector and the second connector include ground wire and connecting line, the connecting line of first connector and described the
The electrical connection of one connecting pin, ground wire are electrically connected with the second mainboard conducting wire；The connecting line of second connector and described second connects
End electrical connection is connect, ground wire is electrically connected with the second mainboard conducting wire.
5. the Broadband bandstop filter as claimed in claim 4 without RLC periodic structure, it is characterised in that: the mainboard is also
Including multiple groups mainboard through-hole, every group of mainboard through-hole is located at the two sides of the first mainboard conducting wire and the second mainboard conducting wire,
The first stem plate conducting wire is electrically connected by the mainboard through-hole with the first mainboard conducting wire, second stem
Plate conducting wire is electrically connected by the mainboard through-hole with the second mainboard conducting wire；The first tail portion plate conducting wire passes through described
Mainboard through-hole is electrically connected with the first mainboard conducting wire, and the second tail portion plate conducting wire passes through the mainboard through-hole and described the
The electrical connection of two mainboard conducting wires.
6. the Broadband bandstop filter as claimed in claim 5 without RLC periodic structure, which is characterized in that further include several
Intermediate plate, the two sides of the intermediate plate are respectively equipped with the intermediate plate conducting wire of symmetrical first and the second intermediate plate
Conducting wire, the intermediate plate are connected on the mainboard, and the first intermediate plate conducting wire and the first mainboard conducting wire
Electrical connection, the second intermediate plate conducting wire are electrically connected with the second mainboard conducting wire, so that the first intermediate plate conducting wire,
In the first mainboard conducting wire, the second intermediate plate is led for first stem plate conducting wire and the first tail portion plate conductor in parallel
Line, the second stem plate conducting wire and the second tail portion plate conductor in parallel in the second mainboard conducting wire,
Wherein, the length of the first of the intermediate plate the intermediate plate conducting wire is from the stem plate to the suitable of the tail portion plate
Sequence is incremented by, and the length of the first intermediate plate conducting wire is greater than the length of the first stem plate conducting wire, is less than described
The length of first tail portion plate conducting wire.
7. the Broadband bandstop filter as claimed in claim 6 without RLC periodic structure, it is characterised in that: main described in every group
The distance between plate through-hole is equal, and the distance between mainboard through-hole s described in every group are as follows:
S=l/n
Wherein, l is the length of the first mainboard conducting wire, and n is the intermediate plate and the stem plate and tail portion plate
The sum of quantity.
8. the Broadband bandstop filter as claimed in claim 7 without RLC periodic structure, it is characterised in that: the stem is inserted
Plate, tail portion plate and intermediate plate are equipped with connection through-hole, and the connection through-hole is electrically connected with the mainboard through-hole.
9. the Broadband bandstop filter as claimed in claim 8 without RLC periodic structure, it is characterised in that: the mainboard
Both ends are equipped with jack, and the stem plate, tail portion plate and intermediate plate are equipped with insertion end, the stem plate, tail portion plate
It is inserted into the jack with intermediate plate by the insertion end and is connected to the mainboard.
10. the Broadband bandstop filter as claimed in claim 9 without RLC periodic structure, it is characterised in that: insert the tail portion
Plate is equipped with the plate intermediate throughholes being electrically connected with the first tail portion plate conducting wire close to the center of the end of the mainboard,
The end of the mainboard is equipped with the mainboard intermediate throughholes being electrically connected with the first mainboard conducting wire, the plate intermediate throughholes and institute
The electrical connection of mainboard intermediate throughholes is stated, so that the first tail portion plate conducting wire is electrically connected with the first mainboard conducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257571.8A CN109585984B (en) | 2018-10-26 | 2018-10-26 | Broadband band-stop filter without RLC periodic structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257571.8A CN109585984B (en) | 2018-10-26 | 2018-10-26 | Broadband band-stop filter without RLC periodic structure |
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| CN109585984A true CN109585984A (en) | 2019-04-05 |
| CN109585984B CN109585984B (en) | 2020-04-03 |
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