CN103887587B - A kind of supporting construction improving TE mould dielectric resonator Q value - Google Patents
A kind of supporting construction improving TE mould dielectric resonator Q value Download PDFInfo
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- CN103887587B CN103887587B CN201410070690.8A CN201410070690A CN103887587B CN 103887587 B CN103887587 B CN 103887587B CN 201410070690 A CN201410070690 A CN 201410070690A CN 103887587 B CN103887587 B CN 103887587B
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- resonator
- dielectric
- mould
- value
- support
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Abstract
The invention discloses a kind of supporting construction improving TE mould dielectric resonator Q value, form TE mould dielectric resonator together with dielectric core, metal cavitg.This support (3) generally adopts the dielectric material that dielectric constant is little compared with resonator dielectric core to make, and its effect is configured in cavity by dielectric resonator medium core.Invent by slotting (31,32,33,34) to tubular or pillar support (3) with the connecting portion position of resonator body or TE mould dielectric core (2), under the connection requirement of mechanical strength of satisfied support and dielectric core, reduce TE mode coupling therebetween, weaken the loss in supporting, thus not changing under dielectric core, the material of support and metal cavitg, technique, improve the Q value of TE mould dielectric resonator.
Description
Technical field
The present invention relates to TE mould dielectric resonator supporting construction in the technical fields such as mobile communication, satellite communication and microwave communication, specifically a kind of supporting construction improving TE mould dielectric resonator Q value, this supporting construction is also referred to as base etc., is dielectric resonator medium core is installed, to be fixed on metallic cavity and to work in the necessary component of one of TE mould.It forms medium and then refers to all solid state microwave media, comprises mica, pottery, rubber, polystyrene etc.
Background technology
The quality factor q value of dielectric resonator, be its important indicator in circuit application, high q-factor resonator can realize low-loss microwave device and circuit.Design and the dielectric resonator producing high q-factor to be the realization of microwave circuits and devices crucial.TE mould dielectric resonator is often made up of dielectric core, supporting construction and the metallic cavity of surrounding them.
For the enclosed medium resonator body (dielectric core namely in TE mould resonator) being placed on free space, its loss is dielectric loss and the radiation loss of dielectric core; For the dielectric resonator in circuit structure, except two kinds of losses of dielectric core, also to consider the dielectric loss that the joule loss of surrounding metallic conductor and the support of fixed resonator are formed.Consider, improving dielectric resonator Q value has following method usually:
1, select dielectric material system and the reasonably technological process of science, reduce the dielectric loss of dielectric material
Most electromagnetic energy of TE mould dielectric resonator is limited in dielectric resonance main body, as long as the dielectric material adopting loss little, namely can be made into high q-factor microwave resonator.And formula system is depended in the loss of dielectric material to a great extent, select the medium formula system of science, adopt rational technological process, can obtain and there is more low-loss dielectric material, and produce the TE mould dielectric resonator of high q-factor further.High q-factor ceramic dielectric formula foundational system normal at present has La-Mg-Ti-Ca system, Ba-Mg-Ta system and CaTiO
3-MgTiO
3system;
2, improve housing surface fineness, reduce housing surface resistance
The joule loss of cavity metallic conductor also can reduce the Q value of TE mould resonator, improves housing surface fineness, reduces housing surface resistance, can reduce cavity joule loss, promote the Q value of TE mould ceramic resonator by Precision Machining, the technique such as silver-plated;
3, adopt low-loss material to make to support
The support (or claiming base) of TE mould resonator is directly connected with resonator, and the electromagnetic wave in resonator inevitably enters in support, and the loss formed when electromagnetic wave is propagated in backing material will reduce the overall Q value of resonator further.Select low-loss material system to support, effectively can promote the overall Q value of resonator.
Current raising TE mould dielectric resonator Q value considers that the 1st and the 2nd kind of method or the two combine usually, in order to obtain the TE mould dielectric resonator with higher q values, the PROCESS FOR TREATMENT such as cavity metal surface generally all needs Precision Machining, silver-plated, thus reduce housing surface resistance, reduce cavity joule loss; On the other hand, reduce the spillage of material of dielectric core, also effectively can improve the Q value of TE mould resonator.As patent publication No. CN1362941, CN1359109, CN101868431A, CN101851088A, CN102197007A etc. respectively provide novel low consumption dielectric process for preparing ceramic, the TE mould resonator dielectric core adopting these materials to make effectively can improve resonator q.But TE mould dielectric resonator not only needs to consider the dielectric loss of resonance main body and the joule loss of cavity, also needs to reduce the loss supported further.
Summary of the invention
The object of the invention is to overcome shortcoming of the prior art with not enough, design a kind of supporting construction improving TE mould dielectric resonator Q value, do not change resonator body or TE mould dielectric core, metallic cavity and support material and manufacture craft prerequisite under, pass through Novel support structure, reduce the loss of backing material, improve TE mould resonator q.
In order to achieve the above object, the present invention is achieved by following technical proposals: a kind of supporting construction improving TE mould dielectric resonator Q value, be a cylinder or pillar support, slot in the connecting portion position of cylinder or pillar support and resonator body or TE mould dielectric core.Thus reduce resonator body or the electromagnetic field couples between TE mould dielectric core and support, reduce the dielectric loss supporting electromagnetic field, improve the Q value of resonator.
It can be arbitrary Polygonal barrel that described tubular supports; Described pillar support can be arbitrary polygon cylinder.
The semi-circular groove of described flute profile to be preferred radius be r=30mm; Groove quantity is more than three.
The present invention forms TE mould dielectric resonator together with dielectric core, metal cavitg.The dielectric material that this support generally adopts dielectric constant little compared with resonator dielectric core makes, and its effect is configured in cavity by dielectric resonator medium core.
Compared with prior art, the present invention thus the material of TE mould resonator assembly (resonator body or TE mould dielectric core, support or base, metallic cavity) need not be changed, technique can promote Q value.Reduce the material loss requirement supported, for production technology and product cost offer convenience.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is traditional tubular TE mould resonator supporting construction schematic diagram.
Fig. 2 is the distribution map of the electric field that traditional tubular TE mould resonator is supported on resonance frequency.
Fig. 3 is tubular TE mould resonator supporting construction schematic diagram of the present invention.
Fig. 4 is the distribution map of the electric field that tubular TE mould resonator of the present invention is supported on resonance frequency.
Fig. 5 is the present invention and TE mould resonator connection diagram.
In accompanying drawing: 1 silver-plated metallic cavity; 2 resonator body or TE mould dielectric core; 3 support; 31,32,33,34 semi-circular groove; 4 traditional support.
Embodiment
The present invention design TE mould resonator supporting construction examples of implementation and be described in detail as follows, in shown examples of implementation, a kind of supporting construction improving TE mould dielectric resonator Q value, resonator body or TE mould dielectric core (2) adopt relative dielectric constant to be 45, loss tangent is the ceramic material of 1e-5, and external diameter is Ф
11=61.12mm, internal diameter Ф
12=21.59mm, high h
1=29.5mm; Backing material adopts relative dielectric constant to be 9.2, and loss tangent is the ceramic material of 1.2e-3, and external diameter is Ф
21=44.5mm, internal diameter Ф
22=33mm, high h
2=24.9mm.
As shown in Figure 3, application the technology of the present invention is slotted supporting the connecting portion position with resonator body or TE mould dielectric core (2), the semi-circular groove (31,32,33,34) 4 of this groove to be radius be r=30mm; Fluting reduces and dielectric core electromagnetic field couples greatly.
Fig. 4 represents that tubular TE mould resonator of the present invention supports (3) distribution map of the electric field in resonance frequency compared with the Electric Field Distribution of conventional art supporting construction (4) Fig. 2, the electric field that fluting reduces in support greatly, thus reduce the electromagnetic field loss of support, improve resonator q.
As shown in Figure 5, resonator body or TE mould dielectric core (2) and support (3) and be configured in silver-plated metallic cavity (1).
In this embodiment, shown in Fig. 3, the TE mould resonator q adopting support technology of the present invention is 22442, and adopts the Q value of the TE mould resonator of traditional support (4) to be only 12945 shown in Fig. 1, do not change media material properties, invention can improve TE mould resonator q greatly.
The above, it is only one of embodiment of the present invention, not any pro forma restriction is done to the present invention, under ensureing to support the prerequisite with the connection requirement of mechanical strength of dielectric core, the lightweight of convenience and product that the shape of fluting, quantity and size can take into account manufacture craft designs arbitrarily.Any content not departing from technical solution of the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all belong to the scope of technical solution of the present invention.
Claims (3)
1. improving a supporting construction for TE mould dielectric resonator Q value, is a cylinder or pillar support (3); It is characterized in that, slot (31,32,33,34) at cylinder or pillar support (3) with the connecting portion position of resonator body or TE mould dielectric core (2); The semi-circular groove of described fluting (31,32,33,34) flute profile to be radius be r=30mm; Groove quantity is more than three.
2. a kind of supporting construction improving TE mould dielectric resonator Q value according to claim 1, is further characterized in that: it is arbitrary Polygonal barrel that described tubular supports.
3. a kind of supporting construction improving TE mould dielectric resonator Q value according to claim 1, is further characterized in that: described pillar support can be arbitrary polygon cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070690.8A CN103887587B (en) | 2014-02-28 | 2014-02-28 | A kind of supporting construction improving TE mould dielectric resonator Q value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070690.8A CN103887587B (en) | 2014-02-28 | 2014-02-28 | A kind of supporting construction improving TE mould dielectric resonator Q value |
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| Publication Number | Publication Date |
|---|---|
| CN103887587A CN103887587A (en) | 2014-06-25 |
| CN103887587B true CN103887587B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410070690.8A Expired - Fee Related CN103887587B (en) | 2014-02-28 | 2014-02-28 | A kind of supporting construction improving TE mould dielectric resonator Q value |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576330B (en) * | 2016-02-16 | 2018-03-13 | 苏州子波电子科技有限公司 | TE mould dielectric resonance devices |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202159755U (en) * | 2011-07-13 | 2012-03-07 | 江苏贝孚德通讯科技股份有限公司 | TE01mode media loading cavity with ultrahigh Q value |
| CN202259651U (en) * | 2011-10-27 | 2012-05-30 | 武汉凡谷电子技术股份有限公司 | Allotype resonance rod |
| CN202839920U (en) * | 2012-10-10 | 2013-03-27 | 武汉凡谷电子技术股份有限公司 | Low loss transverse electric (TE) medium band top filter |
| CN203774440U (en) * | 2014-02-28 | 2014-08-13 | 湘南学院 | Supporting structure capable of increasing Q value of TE mould dielectric resonator |
-
2014
- 2014-02-28 CN CN201410070690.8A patent/CN103887587B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202159755U (en) * | 2011-07-13 | 2012-03-07 | 江苏贝孚德通讯科技股份有限公司 | TE01mode media loading cavity with ultrahigh Q value |
| CN202259651U (en) * | 2011-10-27 | 2012-05-30 | 武汉凡谷电子技术股份有限公司 | Allotype resonance rod |
| CN202839920U (en) * | 2012-10-10 | 2013-03-27 | 武汉凡谷电子技术股份有限公司 | Low loss transverse electric (TE) medium band top filter |
| CN203774440U (en) * | 2014-02-28 | 2014-08-13 | 湘南学院 | Supporting structure capable of increasing Q value of TE mould dielectric resonator |
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| CN103887587A (en) | 2014-06-25 |
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