CN106329044A - Ku-waveband small cavity filter - Google Patents
Ku-waveband small cavity filter Download PDFInfo
- Publication number
- CN106329044A CN106329044A CN201610710339.XA CN201610710339A CN106329044A CN 106329044 A CN106329044 A CN 106329044A CN 201610710339 A CN201610710339 A CN 201610710339A CN 106329044 A CN106329044 A CN 106329044A
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- CN
- China
- Prior art keywords
- main body
- cavity filter
- small cavity
- cover plate
- wave band
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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
- H01P1/207—Hollow waveguide filters
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a Ku-waveband small cavity filter. The Ku-waveband small cavity filter comprises a main body, a lower cover plate, an upper cover plate, a plurality of tuning screws, two microwave insulators and two connectors, wherein the upper cover plate is arranged at the top of the main body; the lower cover plate is arranged at the bottom of the main body; the tuning screws are arranged on the upper cover plate; side holes are formed in two ends, along the length, of the main body; the microwave insulators are arranged in the side holes; one ends of the microwave insulators extend into a cavity of the main body and are connected with conductor columns in the cavity; and the other ends of the microwave insulators extend out of the cavity and are connected with the connectors. The Ku-waveband small cavity filter has the advantages of small insertion loss, high inhibition, small volume, low production cost and the like.
Description
Technical field
The present invention relates to microwave device field, be specifically related to a kind of Ku wave band small cavity filter.
Background technology
Modern microwave communication, radar, navigate, guide, in the system such as electronic countermeasure and test instrumentation, wave filter is all it
Important parts, are mainly used in the selection of passage and the synthesis of signal and separate, and the quality of its performance can directly influence whole
The performance of system.Wave filter mainly has planar structure and the big type of cavity body structure two.It is made up of planar transmission lines such as microstrip lines
Planar structure wave filter, the most integrated with active device, but there is big the lacking of Insertion Loss in squareness factor difference and band in this kind of wave filter
Point.Bigger Insertion Loss causes system capacity to be dissipated on wave filter, and the energy that this partition losses falls needs having by complexity
Source circuit compensates, thus adds the volume of system, power consumption and cost of manufacture.
Select therefore it provides one has little Insertion Loss, high suppression, low cost, small size, and the frequency that can realize
The cavity body filter of property is the microwave current devices field technical issues that need to address.
Summary of the invention
It is an object of the invention to provide a kind of Ku wave band small cavity filter, it possesses little Insertion Loss, high suppression, low one-tenth
Originally, the advantage of small size.
To achieve these goals, the invention provides a kind of Ku wave band small cavity filter, including main body, lower cover
Plate, upper cover plate, multiple tuning screw, two isolators and two adapters；Upper cover plate is arranged at the top of main body, lower cover
Plate is arranged at the bottom of main body, and multiple tuning screws are arranged on upper cover plate；Main body two ends alongst are provided with side
Hole, isolator is arranged in described side opening and one end extend to the chamber of main body in and be connected with the conductor pin in chamber
Connecing, the other end of isolator extends to the outside of chamber and adapter is connected.
In the present invention, for the ease of the installation, fixing of Ku wave band small cavity filter, it is preferable that main body, lower cover with
Be placed in the vertical direction multiple through hole on upper cover plate, in the case of main body, lower cover are overlapping with upper cover plate, main body, under
The through hole that cover plate is corresponding with on upper cover plate can be through.
In the present invention, in order to improve the performance of Ku wave band small cavity filter, it is preferable that isolator includes medium
And the inner wire that is sequentially connected with and outer conductor, medium socket is located on inner wire and outer conductor is sheathed on the outside of described medium；
One end of inner wire is connected with conductor pin, and the other end of inner wire is connected with adapter；Outer conductor is welded in side opening.
In the present invention, the affixed mode of adapter can arbitrarily select, but removing and installing for the ease of adapter,
Preferably, adapter is arranged on outer conductor, and the two ends of adapter are fixed in outside main body by the way of screw assembles
On wall.
In the present invention, main body can arbitrarily select with the connected mode of lower cover and upper cover plate, but in order to improve Ku ripple
The performance of section small cavity filter and simplification production procedure, it is preferable that main body and lower cover and the connected mode of upper cover plate
For threaded.
In the present invention, in order to improve the performance of Ku wave band small cavity filter, increase the service life, it is preferable that resonance
The connected mode of screw and upper cover plate is for threadeding and glueing joint.
In the present invention, in order to improve the performance of Ku wave band small cavity filter, it is preferable that adapter is that SMA series connects
Connect device.
In the present invention, the kind of tuning screw can select in wide scope, but in order to improve Ku wave band small cavity
The overall performance of fluid filter, it is preferable that tuning screw is the brass screw of electroplate.
In the present invention, main body can select with the material of any one in lower cover and upper cover plate in wide scope,
But in order to improve the performance of Ku wave band small cavity filter and reduce production cost, it is preferable that main body and lower cover and
The material of any one in upper cover plate is the duralumin of electroplate.
According to technique scheme, the Ku wave band small cavity filter that the present invention provides has little Insertion Loss, high suppression, little
Volume and low being suitable to of cost of manufacture are produced in batches.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the main body of Ku wave band small cavity filter
Fig. 2 is the top view of Fig. 1
Fig. 3 is the left view of Fig. 1
Fig. 4 is the structural representation of isolator
Fig. 5 is the structural representation of the upper cover plate of Ku wave band small cavity filter
Fig. 6 is the left view of Fig. 5
Fig. 7 is the structural representation of the lower cover of Ku wave band small cavity filter
Fig. 8 is the left view of Fig. 7
Fig. 9 is the sectional view in A-A face in Fig. 2
Figure 10 is the sectional view in B-B face in Fig. 1
Figure 11 is insertion loss and the Out-of-band rejection emulation knot of the small cavity filter of Ku wave band small cavity filter
Really curve chart
Figure 12 is the port standing-wave ratio simulation result curve chart of the small cavity filter of Ku wave band small cavity filter
Description of reference numerals
1, main body 2, lower cover
3, upper cover plate 4, tuning screw
5, isolator 6, adapter
7, conductor pin 8, through hole
9, screw A 10, screw B
11, side opening 12, counterbore
13, inner wire 14, outer conductor
15, medium 16, screw B
17, screw hole
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
In the present invention, in the case of illustrating on the contrary, the noun of locality that " upper and lower, top, the end " etc. is included in term
Only represent this term orientation under normal service condition, or for being commonly called as of skilled artisan understands that, and be not construed as right
The restriction of this term.
See Fig. 1-10, a kind of Ku wave band small cavity filter that the present invention provides, including main body 1, lower cover 2, on
Cover plate 3, multiple tuning screw 5 and two adapters 6 of 4, two isolators.Upper cover plate 3 is arranged at the top of main body 1,
Lower cover 2 is arranged at the bottom of main body 1, and multiple tuning screws 4 are arranged on upper cover plate 3；Main body two ends alongst
Being provided with side opening 11, in isolator 5 is arranged at side opening 11 and one end extends in the chamber of main body 1, with leading in chamber
Scapus 7 is connected, and the other end of isolator 5 extends to the outside of chamber and is connected with adapter 6.
For the ease of the installation, fixing of Ku wave band small cavity filter, on main body 1, lower cover 2 and upper cover plate 3 along
Vertical direction is provided with multiple through hole 8, and in the case of main body 1, lower cover 2 are overlapping with upper cover plate 3, main body 1, lower cover 2
The through hole 8 corresponding with on upper cover plate 3 can be through.Upper cover plate 3 (see Fig. 5, Fig. 6) utilizes multiple sunk screw by counterbore 12 He
Screw A9 in main body 1 is fixed on the top of main body 1；Lower cover 2 (see Fig. 7, Fig. 8) then utilizes multiple sunk screw by heavy
Screw A9 on hole 12 and main body 1 is solid in the lower section of main body 1.In order to improve performance and the fall of Ku wave band small cavity filter
Low production cost, it is preferable that main body 1 and the duralumin that the material of any one is electroplate in lower cover 2 and upper cover plate 3.
It addition, multiple tuning screws 4 are fixed on (see Fig. 9, Figure 10) on upper cover plate 3, in order to improve the small-sized cavity of Ku wave band
The performance of wave filter, increasing the service life, tuning screws 4 uses with the connected mode of upper cover plate 3 threadeds and glueds joint, wherein
Threaded realized by screw hole 17, it is preferable that tuning screws 4 is the brass screw of electroplate.
Additionally, see Fig. 4, isolator 5 includes medium 15 and the inner wire 13 being sequentially connected with and outer conductor 14；Medium
15 are sheathed on inner wire 13 and outer conductor 14 is sheathed on the outside of medium 15.Outer conductor 14 is placed in the side opening 11 of main body 1, and
Fix on the body 1 by the way of welding.Inner wire 13 one end is close length direction two ends in being welded in the chamber of main body 1
On conductor pin 7, inner wire 13 other end then connects with adapter 6.Adapter 6 is first arranged on inner wire, recycles screw
The two ends of adapter 6 are fixed on the outer wall of main body 1 (see Fig. 9, Figure 10) by B16 by screw B10.In the present invention, in order to carry
The performance of high Ku wave band small cavity filter, it is preferable that adapter 6 is SMA series connector.
In order to characterize the performance of Ku wave band small cavity filter further, the present invention uses Ansoft HFSS electricity
This Ku wave band small cavity filter is modeled, emulates and optimizes by magnetic simulated environment, the insertion loss that obtains, Out-of-band rejection
Result is as shown in figure 11；Wherein the abscissa of Figure 11 represents frequency, and unit is GHz, and vertical coordinate represents loss, and unit is dB.Figure
12 is the port standing-wave ratio simulation result curve chart of the small cavity filter of Ku wave band small cavity filter, the horizontal seat of Figure 12
Mark represents frequency, and unit is GHz, and vertical coordinate represents port standing-wave ratio.
The simulation result of Figure 11 and Figure 12 shows, this Ku wave band small cavity filter is at (14～14.5) GHz range
Interior insertion loss is better than-0.1dB, and port standing-wave ratio is excellent less than the Out-of-band rejection at 1.25, and 12.75GHz and 15.75GHz
In-35dB.
Utilize vector network analyzer that the Ku wave band small cavity filter assembled is entered in a specific embodiment
Row test, test result is as follows: in-band insertion loss is better than-0.5dB；Port standing-wave ratio is less than 1.25；12.75GHz and
Out-of-band rejection at 15.75GHz is better than-35dB.
The Ku wave band small cavity filter that the present invention provides has small size, little Insertion Loss, high suppression, and production cost is low
Advantage, it is possible to realize batch production.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
Execute the detail in mode, in the technology concept of the present invention, technical scheme can be carried out multiple letter
Monotropic type, these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a Ku wave band small cavity filter, it is characterised in that include main body (1), lower cover (2), upper cover plate (3), many
Individual tuning screw (4), two isolators (5) and two adapters (6)；Described upper cover plate (3) is arranged at described main body (1)
Top, described lower cover (2) is arranged at the bottom of described main body (1), and the plurality of tuning screw (4) is arranged at described upper cover
On plate (3)；Described main body two ends alongst are provided with side opening (11), and described isolator (5) is arranged at described
In side opening (11) and one end extends to, in the chamber of described main body (1), be connected with the conductor pin (7) in described chamber, described
The other end of isolator (5) extends to the outside of described chamber and is connected with described adapter (6).
Ku wave band small cavity filter the most according to claim 1, it is characterised in that described main body (1), lower cover
(2) be placed in the vertical direction multiple through hole (8) on upper cover plate (3), at described main body (1), lower cover (2) and upper cover plate
(3), in the case of overlap, described main body (1), lower cover (2) corresponding through hole (8) upper with upper cover plate (3) can be through.
Ku wave band small cavity filter the most according to claim 1 and 2, it is characterised in that described isolator (5)
The inner wire (13) including medium (15) and being sequentially connected with described medium (15) and outer conductor (14)；Described medium (15) overlaps
Above and described outer conductor (14) is sheathed on the outside of described medium (15) to be located at described inner wire (13)；Described inner wire (13)
One end is connected with conductor pin (7), and the other end of described inner wire (13) is connected with adapter (6).
Ku wave band small cavity filter the most according to claim 3, it is characterised in that described outer conductor (14) is welded in
In described side opening (11).
Ku wave band small cavity filter the most according to claim 3, it is characterised in that described adapter (6) is arranged in
On described outer conductor (14), and the two ends of described adapter (6) are fixed in described main body (1) by the way of screw assembles
On outer wall.
Ku wave band small cavity filter the most according to claim 3, it is characterised in that described main body (1) and lower cover
(2) and the connected mode of upper cover plate (3) is: threaded.
Ku wave band small cavity filter the most according to claim 3, it is characterised in that described tuning screws (4) is with upper
The connected mode of cover plate (3) is: threaded and splicing.
8. according to the Ku wave band small cavity filter described in any one in claim 4-7, it is characterised in that described connection
Device (6) is SMA series connector.
Ku wave band small cavity filter the most according to claim 8, it is characterised in that described tuning screw (4) is table
The brass screw that face is silver-plated.
Ku wave band small cavity filter the most according to claim 9, it is characterised in that described main body (1) and lower cover
(2) duralumin that the material of any one is electroplate and in upper cover plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710339.XA CN106329044A (en) | 2016-08-24 | 2016-08-24 | Ku-waveband small cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710339.XA CN106329044A (en) | 2016-08-24 | 2016-08-24 | Ku-waveband small cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106329044A true CN106329044A (en) | 2017-01-11 |
Family
ID=57742410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610710339.XA Pending CN106329044A (en) | 2016-08-24 | 2016-08-24 | Ku-waveband small cavity filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106329044A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100538A (en) * | 2017-06-21 | 2018-12-28 | 北京振兴计量测试研究所 | A kind of isolator detecting tool |
| CN111375863A (en) * | 2020-04-10 | 2020-07-07 | 张书香 | High-frequency insulator welding fixture |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005102046A (en) * | 2003-09-26 | 2005-04-14 | Nec Engineering Ltd | Band-pass filter |
| CN203056062U (en) * | 2013-01-21 | 2013-07-10 | 合肥科尚电子科技有限公司 | Interdigital filter used for C-waveband electronic countermeasure system |
| CN203218421U (en) * | 2013-04-16 | 2013-09-25 | 深圳光启创新技术有限公司 | Cavity filter |
| CN103378388A (en) * | 2012-04-20 | 2013-10-30 | 南京赛格微电子科技有限公司 | Coaxial wide-band filter |
| US20150035623A1 (en) * | 2013-08-02 | 2015-02-05 | Electronics And Telecommunications Research Institute | Variable high frequency filter device and assembly |
| CN105449330A (en) * | 2015-11-26 | 2016-03-30 | 安徽华东光电技术研究所 | Ku wave band magnetic coupling waveguide coaxial converting circuit |
-
2016
- 2016-08-24 CN CN201610710339.XA patent/CN106329044A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005102046A (en) * | 2003-09-26 | 2005-04-14 | Nec Engineering Ltd | Band-pass filter |
| CN103378388A (en) * | 2012-04-20 | 2013-10-30 | 南京赛格微电子科技有限公司 | Coaxial wide-band filter |
| CN203056062U (en) * | 2013-01-21 | 2013-07-10 | 合肥科尚电子科技有限公司 | Interdigital filter used for C-waveband electronic countermeasure system |
| CN203218421U (en) * | 2013-04-16 | 2013-09-25 | 深圳光启创新技术有限公司 | Cavity filter |
| US20150035623A1 (en) * | 2013-08-02 | 2015-02-05 | Electronics And Telecommunications Research Institute | Variable high frequency filter device and assembly |
| CN105449330A (en) * | 2015-11-26 | 2016-03-30 | 安徽华东光电技术研究所 | Ku wave band magnetic coupling waveguide coaxial converting circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100538A (en) * | 2017-06-21 | 2018-12-28 | 北京振兴计量测试研究所 | A kind of isolator detecting tool |
| CN109100538B (en) * | 2017-06-21 | 2021-02-26 | 北京振兴计量测试研究所 | Microwave insulator detects frock |
| CN111375863A (en) * | 2020-04-10 | 2020-07-07 | 张书香 | High-frequency insulator welding fixture |
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Application publication date: 20170111 |
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| RJ01 | Rejection of invention patent application after publication |