CN207868358U - A kind of waveguide high-pass filter parting structure - Google Patents
A kind of waveguide high-pass filter parting structure Download PDFInfo
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- CN207868358U CN207868358U CN201820111947.3U CN201820111947U CN207868358U CN 207868358 U CN207868358 U CN 207868358U CN 201820111947 U CN201820111947 U CN 201820111947U CN 207868358 U CN207868358 U CN 207868358U
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- pass filter
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Abstract
The utility model discloses a kind of waveguide high-pass filter parting structures, size due to drawing cavity shortens half, using the structure type of the center subdivision from waveguide broadside, just short than the traditional parting method half of the draw ratio of cutter bar of milling cutter, the intensity for strengthening cutter bar of milling cutter, the whipping of knife bar when avoiding milling；Improve the surface roughness index in cavity gap so that the insertion loss of filter drops to more satisfactory numerical value.And the form provided by the utility model using docking connects two semi-cavities with trip bolt, and Filter ripple fluting contraposition is accurate, and connection is simple and convenient, and cavity can be reliably fixed.
Description
Technical field
The utility model is related to a kind of waveguide high-pass filter, especially a kind of waveguide high-pass filter parting structure.
Background technology
Waveguide high-pass filter is component crucial in communication system, be mainly used for military-civil microwave communication, satellite communication,
It is used for wide-band channel filtering clutter in the electronic equipments such as radar equipment, aerospace, is normally passed with microwave signal needed for realization
It is defeated and inhibit with outer noise signal the screening, it can be achieved that microwave signal, useless or even unwanted signals are filtered out to reach, are ensured
The effect of useful signal transmission.
Conventional waveguide high-pass filter currently on the market need to use side cover-opening structure（See Fig. 1）, use a cover board 1
It is realized with the wave-guide cavity wave 2 of ripple struction；There are two disadvantages for this structure：1, complex process：Waveguide sidewalls have electric current to flow through, thus
Cover board 1 must be connected with 2 contact surface of cavity using welding manner, cause reflection to generate additional echo damage to avoid poor contact
Consumption and contact loss；2, difficulty of processing is big：For the waveguide high-pass filter of Ka frequency ranges, because its frequency is higher, such ripple seam
Gap is very small, and it is this will be difficult to realize by the way of drawing cavity Milling Machining from waveguide narrow side because cutter bar of milling cutter can be non-
Often small, the size of waveguide broadside is fixed again, and the draw ratio of such cutter bar of milling cutter can be very big, and knife bar understands whipping when milling, no
In favor of reaching high-precision size, and the surface roughness in gap is poor, can additionally increase insertion loss.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts provides a kind of novel waveguide broadside center subdivision
High-pass filter structure type, because waveguide broadside center without surface current also just there is no concern that electric current is discontinuous due to, generates additionally
Reflection and loss, left and right cavity need not be connected using welding manner, this two parts cavity need to only be pulled on screw.
Connection is simpler in this way, and insertion loss is small, and standing wave is low；Exempt to debug, convenient for producing in enormous quantities；It is small, light-weight, reliability
It is high.
The purpose of this utility model is achieved through the following technical solutions：A kind of waveguide high-pass filter parting structure,
Structure uses waveguide broadside center subdivision structure type, and filter is half-and-half splitted from center is divided into symmetrical left chamber body and right chamber
Ripple fluting is offered in body, the left chamber body and the right chamber body respectively, the ripple fluting in the left chamber body and right chamber body
It is formed by the way of drawing cavity Milling Machining from waveguide narrow side；Filter is whole be aligned by left and right cavity fasten and be fixedly connected and
At the ripple fluting when left and right cavity alignment fastens in cavity can also precisely align to ensure that waveguide mouth accurate can close
On.
Preferably, the left and right cavity positions make-up by pin and is docked with reaching high-precision left and right cavity.
Preferably, the left and right cavity is fixedly connected by more screws, the top and bottom of the left and right cavity
It is respectively set there are three lock tongue, the lock tongue is the thin slice that thickness is less than cavity body, and threaded hole is offered on the lock tongue, will
After the cavity alignment of left and right, the threaded hole of left and right cavity upper lock tongue is also aligned with each other, and then screw is screwed in the threaded hole can
The left and right cavity is fixedly connected.
Preferably, the straight slot of through cavities length direction, the left and right cavity are all offered on the left and right cavity respectively
On straight slot be directed at the when of fastening in left and right cavity and can also precisely align each other, ripple fluting is evenly distributed on the straight slot
Both sides and connect with the straight slot.
Preferably, the material of the left and right cavity uses red copper part or aluminium workpiece surface silver-plated to reduce loss.
A kind of waveguide high-pass filter parting structure, including cylindrical centre body and cylindrical shell body, the cylindrical centre body
It slots with ripple is formed on cylindrical shell body by way of drawing cavity Milling Machining respectively, in the cylindrical shell body and cylinder
The heart body when snapping together respective ripple fluting can precisely align to ensure waveguide mouth can precision close, the cylinder
Outer housing and cylindrical centre body are fixedly connected to form complete high-pass filter by dismountable form.
Preferably, external screw thread is machined on the cylindrical centre body, being machined on cylindrical shell body can be with the external screw thread
The internal thread groove of mating connection, by cylindrical centre body screw in cylindrical shell body and by screw thread rotation in place after, the cylindrical center
Ripple fluting on body and cylindrical shell body can be exactly aligned with one another.
Preferably, the material of the left and right cavity uses red copper part or aluminium workpiece surface silver-plated to reduce loss.
The utility model has the following advantages：
1, the ripple of its semi-cavity intracavitary of high-pass filter provided by the utility model fluting is still used from waveguide narrow side
The mode of cavity Milling Machining is drawn to ensure machining accuracy, but high-pass filter structure provided by the utility model is due to drawing cavity
Size shortens half, because we are using the structure type of the center subdivision from waveguide broadside, the draw ratio of cutter bar of milling cutter is just
Shorter than traditional parting method half, strengthens the intensity of cutter bar of milling cutter, the whipping of knife bar when avoiding milling；Improve chamber
Surface roughness index in body gap so that the insertion loss of filter drops to more satisfactory numerical value.And this practicality is new
The form docked using cylindrical centre body and annulus bush whorl that type provides is connected two semi-cavities, and Filter ripple is opened
Slot contraposition is accurate, and connection is simple and convenient, and cavity can be reliably fixed.Product provided by the utility model strengthens enterprise in wave
The technical capability for leading devices field, overcomes the waveguide high-pass filter complex process of traditional structure forms, is difficult to etc. and lack
Point improves product occupation rate on the market.
2, its waveguide broadside center of high-pass filter provided by the utility model does not just have to concern electric current without surface current yet
Discontinuous and generate additional reflection and loss, left and right cavity need not be connected using welding manner, need to only use screw this two
Part cavity is pulled on, and insertion loss is small, and standing wave is low；Exempt to debug, convenient for producing in enormous quantities；It is small, light-weight, reliability
It is high.
Description of the drawings
Fig. 1 is the conventional waveguide high-pass filter structural schematic diagram using side cover-opening structure；
Fig. 2 is waveguide high-pass filter structural schematic diagram in embodiment 1；
Fig. 3 is waveguide high-pass filter front view in embodiment 1；
Fig. 4 is waveguide high-pass filter left view in embodiment 1；
Fig. 5 is waveguide high-pass filter right view in embodiment 1；
Fig. 6 is waveguide high-pass filter vertical view in embodiment 1；
Fig. 7 is waveguide high-pass filter structural schematic diagram in embodiment 2.
Specific implementation mode
The utility model is further described below in conjunction with the accompanying drawings, the scope of protection of the utility model be not limited to
It is lower described：
Embodiment 1
A kind of waveguide high-pass filter parting structure, as shown in Fig. 2, its structure uses waveguide broadside center subdivision structure shape
Formula, filter is half-and-half splitted from center is divided into symmetrical left chamber body 3 and right chamber body 4, in the left chamber body 3 and the right chamber body 4
Ripple fluting is offered respectively, and the ripple fluting in the left chamber body 3 and right chamber body 4 draws cavity Milling Machining using from waveguide narrow side
Mode formed；Whole be aligned by left and right cavity of filter fastens and is formed by fixedly connecting, when the left and right cavity alignment fastens
Ripple fluting in cavity can also precisely align to ensure waveguide mouth can precision close.
The left and right cavity positions make-up by pin 5 and is docked with reaching high-precision left and right cavity.
The left and right cavity is fixedly connected by more screws, and the top and bottom of the left and right cavity are respectively set
There are three lock tongue, the lock tongue is the thin slice that thickness is less than cavity body, threaded hole is offered on the lock tongue, by left and right cavity
After alignment, the threaded hole of left and right cavity upper lock tongue is also aligned with each other, and then screw is screwed in the threaded hole can be by the left side
Right chamber body is fixedly connected.
The straight slot of through cavities length direction, the straight slot on the left and right cavity are all offered on the left and right cavity respectively
It can also be precisely aligned each other when in left and right, cavity alignment fastens, the ripple fluting is evenly distributed on the both sides of the straight slot simultaneously
It connects with the straight slot.
The material of the left and right cavity uses red copper part or aluminium workpiece surface silver-plated to reduce loss.
Embodiment 2
A kind of waveguide high-pass filter parting structure, including cylindrical centre body 6 and cylindrical shell body 7, the cylindrical center
It is formed with ripple fluting, 7 He of cylindrical shell body on body 6 and cylindrical shell body 7 by way of drawing cavity Milling Machining respectively
Cylindrical centre body 6 when snapping together respective ripple fluting can precisely align to ensure waveguide mouth can precision close,
The cylindrical shell body 7 and cylindrical centre body 6 are fixedly connected to form complete high-pass filter by dismountable form.
External screw thread is machined on the cylindrical centre body 6, company can be coordinated with the external screw thread by being machined on cylindrical shell body 7
The internal thread groove connect, by cylindrical centre body 6 screw in cylindrical shell body 7 and by screw thread rotation in place after, 6 He of the cylindrical centre body
Ripple fluting on cylindrical shell body 7 can be exactly aligned with one another.
The material of the left and right cavity uses red copper part or aluminium workpiece surface silver-plated to reduce loss.
The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein
Disclosed form is not to be taken as excluding other embodiments, and can be used for other combinations, modifications, and environments, and
Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field
The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all rights appended by the utility model
It is required that protection domain in.
Claims (8)
1. a kind of waveguide high-pass filter parting structure, it is characterised in that：Its structure uses waveguide broadside center subdivision structure shape
Formula, filter is half-and-half splitted from center is divided into symmetrical left chamber body and right chamber body, in the left chamber body and the right chamber body respectively
Ripple fluting is offered, the ripple in the left chamber body and right chamber body is slotted by the way of drawing cavity Milling Machining from waveguide narrow side
It is formed；Whole be aligned by left and right cavity of filter fastens and is formed by fixedly connecting, when the left and right cavity alignment fastens in cavity
Ripple fluting can also precisely align to ensure waveguide mouth can precision close.
2. a kind of waveguide high-pass filter parting structure according to claim 1, it is characterised in that：The left and right cavity is logical
Pin positioning make-up is crossed to dock to reach high-precision left and right cavity.
3. a kind of waveguide high-pass filter parting structure according to claim 1, it is characterised in that：The left and right cavity is logical
Excessive screw is fixedly connected, and the top and bottom of the left and right cavity are respectively set there are three lock tongue, and the lock tongue is
Thickness is less than the thin slice of cavity body, and threaded hole is offered on the lock tongue, after left and right cavity is aligned, the locking of left and right cavity
The threaded hole of tongue is also aligned with each other, and then screw is screwed in the threaded hole and can be fixedly connected with the left and right cavity.
4. a kind of waveguide high-pass filter parting structure according to claim 1, it is characterised in that：On the left and right cavity
The straight slot of through cavities length direction is all offered respectively, and the straight slot on the left and right cavity is when left and right cavity is aligned and fastens
It can precisely align each other, the ripple fluting is evenly distributed on the both sides of the straight slot and connects with the straight slot.
5. a kind of waveguide high-pass filter parting structure according to claim 1, it is characterised in that：The left and right cavity
Material uses red copper part or aluminium workpiece surface silver-plated to reduce loss.
6. a kind of waveguide high-pass filter parting structure, it is characterised in that：Including cylindrical centre body and cylindrical shell body, the circle
It is formed with ripple fluting, the cylindrical shell body on column centerbody and cylindrical shell body by way of drawing cavity Milling Machining respectively
When being snapped together with cylindrical centre body respective ripple fluting can precisely align to ensure waveguide mouth can precision close,
The cylindrical shell body and cylindrical centre body are fixedly connected to form complete high-pass filter by dismountable form.
7. a kind of waveguide high-pass filter parting structure according to claim 6, it is characterised in that：The cylindrical centre body
On be machined with external screw thread, the internal thread groove that can be connected with the external screw thread is machined on cylindrical shell body, by cylindrical center
Body screw in cylindrical shell body and by screw thread rotation in place after, ripple on the cylindrical centre body and cylindrical shell body fluting can
It is exactly aligned with one another.
8. a kind of waveguide high-pass filter parting structure according to claim 6, it is characterised in that：The left and right cavity
Material uses red copper part or aluminium workpiece surface silver-plated to reduce loss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820111947.3U CN207868358U (en) | 2018-01-23 | 2018-01-23 | A kind of waveguide high-pass filter parting structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820111947.3U CN207868358U (en) | 2018-01-23 | 2018-01-23 | A kind of waveguide high-pass filter parting structure |
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| CN207868358U true CN207868358U (en) | 2018-09-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011014A (en) * | 2019-04-26 | 2019-07-12 | 深圳大学 | Waveguide filter and its manufacturing method |
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- 2018-01-23 CN CN201820111947.3U patent/CN207868358U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011014A (en) * | 2019-04-26 | 2019-07-12 | 深圳大学 | Waveguide filter and its manufacturing method |
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