CN206422224U - A kind of filter antenna based on metal-integral structure - Google Patents
A kind of filter antenna based on metal-integral structure Download PDFInfo
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- CN206422224U CN206422224U CN201720059537.4U CN201720059537U CN206422224U CN 206422224 U CN206422224 U CN 206422224U CN 201720059537 U CN201720059537 U CN 201720059537U CN 206422224 U CN206422224 U CN 206422224U
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- metal
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- cavity
- cavity body
- metallic plate
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Abstract
The utility model discloses a kind of filter antenna based on metal-integral structure, including Metal cavity body, conductor assembly, metal antenna cavity and probe, embedding one piece of metallic plate in the Metal cavity body, the line of rabbet joint is provided with the metallic plate, the open top of the metal antenna cavity, remainder closing；The conductor assembly is fixed in the left wall of Metal cavity body, and be connected with the left end of metallic plate, a manhole is provided between the right wall of the Metal cavity body and the left wall of metal antenna cavity, one end of the probe passes through from manhole center and is connected afterwards with the right-hand member of metallic plate, the other end is hanging, and in metal antenna cavity.The utility model can realize filtering and good antenna radiation performance, using the theory of multimode, aerial radiation band is roomy, and frequency selectivity is good, it has the advantages that small volume, design be simple, easy processing, performance are good simultaneously, can be good at meeting the requirement of modern communication systems.
Description
Technical field
The utility model is related to a kind of filter antenna, especially a kind of filter antenna based on metal-integral structure, category
In wireless communication field.
Background technology
Filter antenna is all transmitting terminal and the important device of receiving terminal in Modern Communication System, and it connects sending and receiving except playing
Outside the number of delivering letters, centrifugation also is played to signal, allows useful signal is as zero-decrement as possible to pass through, useless signal to the greatest extent may be used
Can big decay suppress it and pass through, it is possible to achieve the filtering of signal, send and receive.With the development of wireless communication technology, letter
Frequency band between number is more and more narrow, and this just proposes higher requirement to the specification and reliability of antenna.Filter antenna has high
Frequency selectivity, filter with low insertion loss, power capacity are big, steady performance and with very high application value.Many scholars are to filter
The isolation of wave antenna generation frequency band, band selective, radiance are studied, by adjusting wave filter, antenna performance and filter
Good duplexed antenna performance is realized in the collocation of ripple device and antenna.
With the fast development of wireless communication technology, frequency microwave requirement on devices is dimensionally more compact, various multi-functional
The development of device is proved to be the good method for solving this problem, and traditional wave filter and antenna is two independent devices,
Be in wireless communication system it is individually designed, filter antenna be the integrated of antenna and wave filter and with the function of two kinds of devices.
There are many researchs on filter antenna recent years, document [1] proposes a kind of wave filter and antenna synthesis is set
The method of meter；The comprehensive filter antenna out in document [2]-[4] has good frequency selectivity；Document [5] is short by introducing
Pass by hole；Document [6] allows antenna to have more preferable rectangular degree by adding a parasitic element.
Although above-mentioned filter antenna is with good filtering selectivity, they can not suppress higher hamonic wave, higher hamonic wave
Radiation can cause extra power attenuation, and produce signal interference.
Bibliography：
[1]C.T.Chuang and S.J.Chung,“Synthesis and design of a new printed
filtering antenna,”IEEE Trans.Antennas Propag.,vol.59,no.3,pp.1036-1042,
Mar.2011.
[2]W.-J.Wu,Y.-Z.Yin,S.-L.Zuo,Z.-Y.Zhang,and J.-J.Xie,“A new compact
filter-antenna for modern wireless communication systems,”IEEE Antennas
Wireless Propag.Lett..,vol.10,pp.1131-1134,2011.
[3]C.-T.Chuang and S.-J.Chung“A compact printed filtering antenna
using a ground-intruded coupled line resonator”,IEEE Trans.Antennas Propag.,
vol.59,no.10,pp.3630-3637,Oct.2011.
[4]C.-K.Lin and S.-J.Chung“A compact filtering microstrip antenna
with quasi-elliptic broadside antenna gain response”,IEEE Antennas Wireless
Propag.Lett.,vol.10,pp.381-384,2011.
[5]S.W.Wong,T.G.Huang,C.X.Mao,Z.N.Chen,and Q.X.Chu“Planar filtering
ultra-wideband(UWB)antenna with shorting pins”,IEEE Trans.Antennas Propag.,
vol.61,no.2,pp.948-953,Feb.2013.
[6]J.Wu,Z.Zhao,Z.Nie,and Q.Liu,“A printed unidirectional antenna with
improved upper band-edge selectivity using a parasitic loop”,IEEE
Trans.Antennas Propag.,vol.63,no.4,pp.1832-1873,Apr.2015。
Utility model content
The purpose of this utility model is to be based on metal there is provided a kind of one kind to solve the defect of above-mentioned prior art
The filter antenna of integral structure, the filter antenna can realize filtering and good antenna radiation performance, utilize the reason of multimode
By, aerial radiation band is roomy, and frequency selectivity is good, while it has the advantages that small volume, design be simple, easy processing, performance are good,
It can be good at meeting the requirement of modern communication systems.
The purpose of this utility model can be reached by adopting the following technical scheme that：
A kind of filter antenna based on metal-integral structure, including Metal cavity body, conductor assembly, metal antenna chamber
The line of rabbet joint, the metal antenna cavity are provided with body and probe, the Metal cavity body on embedding one piece of metallic plate, the metallic plate
Open top, remainder closing；The conductor assembly is fixed in the left wall of Metal cavity body, and with a left side for metallic plate
End connection, is provided with a manhole, the spy between the right wall of the Metal cavity body and the left wall of metal antenna cavity
One end of pin is from manhole center through being connected afterwards with the right-hand member of metallic plate, and the other end is hanging, and positioned at metal antenna cavity
It is interior.
As a kind of preferred scheme, the line of rabbet joint is the rectangle line of rabbet joint.
As a kind of preferred scheme, the rectangle line of rabbet joint has two, and two rectangle line of rabbet joint are symmetrical.
As a kind of preferred scheme, the conductor assembly is made up of coaxial outer conductor and coaxial inner conductor, described coaxial outer
Conductor is fixed in the left wall of Metal cavity body, and one end of the coaxial inner conductor is connected with coaxial outer conductor, and the other end is worn
Cross after the left wall of Metal cavity body and to be connected with the left end of metallic plate.
As a kind of preferred scheme, the coaxial outer conductor uses sub-miniature A connector, and the coaxial inner conductor uses coupling bar,
The end of the sub-miniature A connector and one end of coupling bar are welded.
As a kind of preferred scheme, the sub-miniature A connector is provided with four through holes, the left wall of the Metal cavity body and opened
Have four screwed holes, four screwed holes are corresponding with four through holes, by screw pass through through hole after with screwed hole coordinate SMA is connect
Head is fixed in the left wall of Metal cavity body.
As a kind of preferred scheme, the Metal cavity body is rectangular metal resonant cavity.
As a kind of preferred scheme, the metal antenna cavity is rectangular metal antenna chamber, the rectangular metal antenna
The open top of cavity, bottom, left part, right part, front and rear closing.
As a kind of preferred scheme, the proportional relation of wavelength of the length of the probe with centre frequency under corresponding.
The utility model has following beneficial effect relative to prior art：
1st, filter antenna of the present utility model has embedding in Metal cavity body and metal antenna cavity, Metal cavity body
One piece of metallic plate, the line of rabbet joint is outputed on embedded metallic plate, it is possible to achieve the filter circuit of high-frequency selectivity, and humorous in metal
Shake and one is outputed between cavity and metal antenna cavity can accommodate the manhole of probe, make one end of probe from manhole
The energy that the line of rabbet joint is filtered is passed through, the other end is in metal antenna cavity in center through being connected afterwards with metallic plate to receive metallic plate
It is hanging to set, the open top of the energy received from metal antenna cavity is radiate, whole filter antenna has volume
The advantages of small, design is simply, easy processing, performance are good, can be good at meeting the requirement of modern communication systems.
2nd, filter antenna of the present utility model is in 4.45~5.85GHz frequency range, | S11 | value all in -10dB
Hereinafter, and there are four obvious resonance points, it is seen that be multimode filter antenna, can be good at meeting modern communication systems will
Ask, meet small volume, high rectangle degree, high q-factor, the features such as design and process simple, by being then based on metal-integral structure
Filter antenna, total is firm.
Brief description of the drawings
Fig. 1 is the filter antenna structural representation of the utility model embodiment 1.
Fig. 2 is the filter antenna front view of the utility model embodiment 1.
Fig. 3 is the filter antenna left view of the utility model embodiment 1.
Fig. 4 is the filter antenna top view of the utility model embodiment 1.
Fig. 5 is the Electromagnetic Simulation curve map of the filter antenna frequency response of the utility model embodiment 1.
Fig. 6 is the machining sketch chart of the filter antenna of the utility model embodiment 1.
Wherein, 1- Metal cavities body, 2- metal antenna cavitys, 3- probes, 4- metallic plates, the 5- rectangle line of rabbet joint, 6- is coaxial
Outer conductor, 7- coaxial inner conductors, 8- manholes, 9- lower metal structures, 10- upper metal structures, 11- first through hole lower half
Part, the lower chambers of 12- first, the lower chambers of 13- second, 14- grooves, the screwed holes of 15- second, the screwed holes of 16- the 3rd, 17- second
Through hole the latter half, the screwed holes of 18- the 4th, the upper cavities of 19- first, the upper cavities of 20- second, the screwed holes of 21- the 5th, 22- the 6th
Screwed hole, 23- the second through hole top halfs, the screwed holes of 24- the 7th, the breach of 25- first, the breach of 26- second.
Embodiment
The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model
Mode not limited to this.
Embodiment 1：
As shown in Figure 1 to 4, the filter antenna of the present embodiment includes Metal cavity body 1, conductor assembly, metal antenna
Cavity 2 and probe 3.
The Metal cavity body 1 is rectangular metal resonant cavity, and it is embedded opens on one piece of metallic plate 4, the metallic plate 4
There are two rectangle line of rabbet joint 5, described two rectangle line of rabbet joint 5 are symmetrical, by two rectangle line of rabbet joint 5, realize high-frequency selectivity
Filter circuit.
The conductor assembly is made up of coaxial outer conductor 6 and coaxial inner conductor 7, and the coaxial outer conductor 6 is fixed on metal
In the left wall of resonant cavity 1, one end of the coaxial inner conductor 7 is connected with coaxial outer conductor 6, and the other end passes through Metal cavity
Left end after the left wall of body 1 with metallic plate 4 is connected, and energy is inputted by coaxial outer conductor 6, and is transferred to by coaxial inner conductor 7
Metallic plate 4.
In the present embodiment, the coaxial outer conductor 6 uses sub-miniature A connector, and the coaxial inner conductor 7 uses coupling bar, described
The end of sub-miniature A connector and one end of coupling bar are welded；The sub-miniature A connector is provided with four through hole (not shown)s, the gold
Four screwed hole (not shown)s are provided with the left wall for belonging to resonant cavity 1, four screwed holes are corresponding with four through holes, pass through
Screw is passed through with screwed hole to coordinate after through hole and is fixed on sub-miniature A connector in the left wall of Metal cavity body 1.
The metal antenna cavity 2 is rectangular metal antenna chamber, the open top of the rectangular metal antenna chamber, bottom
Portion, left part, right part, front and rear closing, are provided between the right wall of Metal cavity body 1 and the left wall of metal antenna cavity 2
One manhole 8, one end of probe 3 is connected from the center of manhole 8 through the right-hand member afterwards with metallic plate 4, to receive metal
Energy of the plate 4 by the filtering of the rectangle line of rabbet joint 5, the other end is hanging, and in metal antenna cavity 2, by the energy received from
The open top of metal antenna cavity 2 is radiate；Wherein, part of the probe 3 in metal antenna cavity 2 and metal antenna chamber
Body 2 constitutes antenna structure, part of the probe 3 in manhole 8 with manhole 8 together as coaxial line, for connecting
Metal cavity body 1 and metal antenna cavity 2, the proportional relation of wavelength of the length of probe 3 with centre frequency under corresponding.
The Electromagnetic Simulation curve of the filter antenna frequency response of the present embodiment is as shown in figure 5, S in figure11Refer to input port
Return loss, it can be seen that in 4.45~5.85GHz frequency range, S11Value all below -10dB, and have four it is bright
Aobvious resonance point, it is seen that be multimode filter antenna, the requirement of modern communication systems is met well.
As shown in fig. 6, the filter antenna process of the present embodiment is as follows：
1) a rectangular metal block is cut, is divided into lower metal structures 9 and upper metal structures 10, whole filter antenna
By lower metal structures 9, upper metal structures 10, metallic plate 4, sub-miniature A connector (coaxial outer conductor 6), coupling bar (coaxial inner conductor
7) constituted with probe 3；
2) in lower metal structures 9, two the first screwed holes (figure for fixing sub-miniature A connector is outputed near left wall
Not shown in) and for accommodating the first through hole the latter half 11 of coupling bar, and output the first lower chamber 12 and the second lower chamber
13；The groove 14 for fixed metal plate 4 is outputed on the front and rear wall of the first lower chamber 12, and is outputed on groove 14 for solid
Determine the second screwed hole 15 of screw, the 3rd screwed hole 16 for fixing screws outputed on the front and rear wall of the second lower chamber 13,
The second through hole the latter half 17 for accommodating probe 3 is outputed between the first lower chamber 12 and the second lower chamber 13；
3) in upper metal structures 10, two the 4th screwed holes 18 for fixing sub-miniature A connector are outputed near left wall
With for accommodating the first through hole top half (not shown) of coupling bar, and the first upper cavity 19 and the second upper cavity are outputed
20, the first upper cavity 19 is not opened, and the second upper cavity 20 is opened；Outputed on the front and rear wall of the first upper cavity 19 for fixing
5th screwed hole 21 of screw, the position of the 5th screwed hole 21 is corresponding with the position of the second screwed hole 15, in the second upper cavity
The 6th screwed hole 22 for fixing screws, position and the 3rd screwed hole 16 of the 6th screwed hole 22 are outputed on 20 front and rear wall
Position is corresponding, and the second through hole first half for accommodating probe 3 is outputed between the first upper cavity 19 and the second upper cavity 20
Divide 23；
4) on metallic plate 4, two rectangle line of rabbet joint 5 and the 7th screwed hole 24 for fixing screws, the 7th spiral shell are outputed
The position of pit 24 is corresponding with the position of the second screwed hole 15, the 5th screwed hole 21, and is outputed in the left end of metallic plate 4 for solid
Determine the first breach 25 of coupling bar, the second breach 26 for fixing probe 3 is outputed in the right-hand member of metallic plate 4；
5) metallic plate 4 is placed on the groove 14 of lower metal structures 9, coupling bar is welded into metallic plate 4 first lacks
On mouthfuls 25, and probe 3 is welded on the second breach 26 of metallic plate 4, covers upper metal structures 10, now the first cavity of resorption
The upper cavity 19 of body 12 and first composition Metal cavity body 1, the second lower chamber 13 and the second upper cavity 20 composition metal antenna chamber
Body 2, first through hole the latter half 11 and first through hole top half composition can be accommodated under the through-hole structure of coupling bar, the second through hole
The through hole top half 23 of half part 17 and second composition can accommodate the manhole 8 of probe 3, be locked sub-miniature A connector by screw
Upper metal structures 10, metallic plate 4 and lower metal structures 9 are fixed up on Metal cavity body 1, and by screw,
Whole filter antenna assembling is finished, and is finally tested.
In above-described embodiment, the metal that the Metal cavity 1, metal antenna cavity 2, metallic plate 4, conductor assembly are used
Material can be any one of aluminium, iron, tin, copper, silver, gold and platinum, or can be any one for aluminium, iron, tin, copper, silver, gold and platinum
The alloy planted.
In summary, filter antenna of the present utility model has Metal cavity body and metal antenna cavity, metal resonance
Cavity embeds one piece of metallic plate, and the line of rabbet joint is outputed on embedded metallic plate, realizes the filter circuit of high-frequency selectivity, and in gold
Output one between category resonant cavity and metal antenna cavity and can accommodate the manhole of probe, make one end of probe from circle
The energy that the line of rabbet joint is filtered is passed through, the other end is in metal antenna chamber in through hole center through being connected afterwards with metallic plate to receive metallic plate
It is hanging in vivo to set, the open top of the energy received from metal antenna cavity is radiate, whole filter antenna has
The advantages of small volume, design are simply, easy processing, performance are good, can be good at meeting the requirement of modern communication systems.
It is described above, only the utility model patent preferred embodiment, but the utility model patent protection domain simultaneously
This is not limited to, any one skilled in the art is in the scope disclosed in the utility model patent, according to this
Technical scheme and its utility model design of utility model patent are subject to equivalent substitution or change, belong to the utility model patent
Protection domain.
Claims (9)
1. a kind of filter antenna based on metal-integral structure, it is characterised in that：Including Metal cavity body, conductor assembly,
In metal antenna cavity and probe, the Metal cavity body line of rabbet joint, the gold are provided with embedding one piece of metallic plate, the metallic plate
Belong to the open top of antenna chamber, remainder closing；The conductor assembly is fixed in the left wall of Metal cavity body, and with
The left end connection of metallic plate, is provided with a circle and leads between the right wall of the Metal cavity body and the left wall of metal antenna cavity
Hole, one end of the probe is from manhole center through being connected afterwards with the right-hand member of metallic plate, and the other end is hanging, and positioned at metal
In antenna chamber.
2. a kind of filter antenna based on metal-integral structure according to claim 1, it is characterised in that：The line of rabbet joint
For the rectangle line of rabbet joint.
3. a kind of filter antenna based on metal-integral structure according to claim 2, it is characterised in that：The rectangle
The line of rabbet joint has two, and two rectangle line of rabbet joint are symmetrical.
4. a kind of filter antenna based on metal-integral structure according to claim 1, it is characterised in that：The conductor
Component is made up of coaxial outer conductor and coaxial inner conductor, and the coaxial outer conductor is fixed in the left wall of Metal cavity body, institute
The one end for stating coaxial inner conductor is connected with coaxial outer conductor, and the other end is through a left side with metallic plate after the left wall of Metal cavity body
End connection.
5. a kind of filter antenna based on metal-integral structure according to claim 4, it is characterised in that：It is described coaxial
Outer conductor uses sub-miniature A connector, and the coaxial inner conductor uses coupling bar, and the end of the sub-miniature A connector and one end of coupling bar are welded
Connect.
6. a kind of filter antenna based on metal-integral structure according to claim 5, it is characterised in that：The SMA
Joint is provided with four screwed holes, four screwed holes lead to four provided with four through holes in the left wall of the Metal cavity body
Hole is corresponding, by screw pass through through hole after with screwed hole coordinate sub-miniature A connector is fixed in the left wall of Metal cavity body.
7. a kind of filter antenna based on metal-integral structure according to claim any one of 1-6, it is characterised in that：
The Metal cavity body is rectangular metal resonant cavity.
8. a kind of filter antenna based on metal-integral structure according to claim any one of 1-6, it is characterised in that：
The metal antenna cavity be rectangular metal antenna chamber, the open top of the rectangular metal antenna chamber, bottom, left part,
Right part, front and rear closing.
9. a kind of filter antenna based on metal-integral structure according to claim any one of 1-6, it is characterised in that：
The proportional relation of wavelength of the length of the probe with centre frequency under corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720059537.4U CN206422224U (en) | 2017-01-18 | 2017-01-18 | A kind of filter antenna based on metal-integral structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720059537.4U CN206422224U (en) | 2017-01-18 | 2017-01-18 | A kind of filter antenna based on metal-integral structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206422224U true CN206422224U (en) | 2017-08-18 |
Family
ID=59572075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720059537.4U Expired - Fee Related CN206422224U (en) | 2017-01-18 | 2017-01-18 | A kind of filter antenna based on metal-integral structure |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921177A (en) * | 2018-12-31 | 2019-06-21 | 瑞声科技（南京）有限公司 | Filter antenna device |
| CN112072315A (en) * | 2020-09-17 | 2020-12-11 | 华南理工大学 | High-gain high-selectivity low-loss cavity filtering antenna |
-
2017
- 2017-01-18 CN CN201720059537.4U patent/CN206422224U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921177A (en) * | 2018-12-31 | 2019-06-21 | 瑞声科技（南京）有限公司 | Filter antenna device |
| CN112072315A (en) * | 2020-09-17 | 2020-12-11 | 华南理工大学 | High-gain high-selectivity low-loss cavity filtering antenna |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |