CN203774433U - Medium resonator and metal resonator coupling radio frequency apparatus - Google Patents

Medium resonator and metal resonator coupling radio frequency apparatus Download PDF

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Publication number
CN203774433U
CN203774433U CN201420108895.6U CN201420108895U CN203774433U CN 203774433 U CN203774433 U CN 203774433U CN 201420108895 U CN201420108895 U CN 201420108895U CN 203774433 U CN203774433 U CN 203774433U
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China
Prior art keywords
resonator
metal
dielectric resonator
radio frequency
cover plate
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CN201420108895.6U
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Chinese (zh)
Inventor
刑国清
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Mitec Communications Equipment (suzhou) Co Ltd
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Mitec Communications Equipment (suzhou) Co Ltd
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Priority to CN201420108895.6U priority Critical patent/CN203774433U/en
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Abstract

The utility model discloses a medium resonator and metal resonator coupling radio frequency apparatus. An L-shaped window is arranged between a medium resonator and a metal resonator. A cover plate of the radio frequency apparatus is equipped with adjusting screws that pass through the cover plate. A metal disc or a metal block is connected under each adjusting screw. The medium resonator and metal resonator coupling radio frequency apparatus is easy to assemble, free from harmonic waves and lower in cost.

Description

A kind of dielectric resonator and metal resonators coupling radio-frequency unit
Technical field
The utility model belongs to communication system base station wave filter technology field, is specifically related to a kind of dielectric resonator and metal resonators coupling radio-frequency unit.
Background technology
Communication system base station adopts at present filter, duplexer and mixer are to obtain higher inhibition and lower loss, generally adopt dielectric resonator, or metal material resonator mix to realize with dielectric resonator.
Because the higher mode of dielectric resonator is closer apart from basement membrane; so the suitable metal resonators that adds can effectively suppress near-end inhibition; in the time that dielectric resonator adopts TM mould; due to identical can the coupling mutually of direction in magnetic field; convenient debugging; but in the time of metal resonators and dielectric resonator TE mode mixture; because the electromagnetic field of two kinds of patterns is mutually vertical; between the more difficult realization of coupling; conventionally can adopt metal resonators welding tap line; the coupled modes of becket in dielectric resonator, but this kind of mode is more difficult tuning.
Meanwhile, due to the coupling piece between dielectric resonator and metal resonators be difficult to accomplish consistent, and assembling trouble, difficult debugging, and easily introduce harmonic wave.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model be to provide a kind of assembling easily, without harmonic wave, the dielectric resonator that cost is low and the metal resonators radio-frequency unit that is coupled.
For achieving the above object, the utility model has adopted following technical scheme:
A kind of dielectric resonator and metal resonators coupling radio-frequency unit, between described dielectric resonator and metal resonators, be provided with " L " type window, the cover plate of described radio-frequency unit is provided with the debugging screw rod through cover plate, under described debugging screw rod, be connected with rosette or metal derby, the volume of rosette or metal derby is larger, and tunable scope is larger.
The beneficial effects of the utility model main manifestations is: the coupled modes between dielectric resonator and metal resonators are reduced to opening L-shaped window by the utility model, it is more convenient that this design implements the coupling between medium and metal, especially for adding the mixed mode filter cavity of transmission zero, processing is more convenient, the processing of simultaneously having saved coupling piece, provides cost savings; Owing to not needing extra installation, ensure preferably the consistency of filter simultaneously, reduced debug time.
Brief description of the drawings
Fig. 1 is the outside vertical view of the utility model one embodiment.
Fig. 2 is that the utility model one embodiment removes the later vertical view of upper cover plate.
Fig. 3 is the main TV structure schematic diagram of the utility model one embodiment mixed mode filter.
Fig. 4 is the utility model one embodiment mixed mode filter one cross-sectional view.
Fig. 5 is the utility model one another cross-sectional view of embodiment mixed mode filter.
Fig. 6 be the utility model one embodiment at each parts the structural representation when unassembled.
Wherein 1 is cavity, the 2nd, M2.5 screw, the 3rd, sub-miniature A connector, the 4th, tap sheet, the 5th, dielectric resonator, the 6th, metal resonators, the 7th, tap line, the 8th, M4 screw, the 9th, cover plate, the 10th, pad, the 11st, dielectric tuning bar, the 12nd, nut, the 13rd, debugging screw rod, the 14th, M3 screw, the 15th, " L " window.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the utility model is done to more specific detail.
As shown in Fig. 1 ~ 6, a kind of dielectric resonator 5 and metal resonators 6 radio-frequency unit that is coupled, between described dielectric resonator 5 and metal resonators 6, be provided with " L " type window, the cover plate 9 of described radio-frequency unit is provided with the debugging screw rod 13 through cover plate 9, and described debugging screw rod is connected with rosette 13 times.
Adjust the coupling between dielectric resonator 5 and metal resonators 6 by the depth that regulates spiral shell examination screw rod 13, also can debug the thickness of screw rod 13 or the size of 13 times metal gardens of debugging screw rod dish changes tuning range by change, the larger tuning scope of the thicker or rosette of debugging screw rod 13 is larger.
The present embodiment can be applied to various forms of mixed mode filters, comprises the filter of TE, TM pattern.Can, by changing the direction of " L " window 15, regulate be coupled between dielectric resonator 5 and metal resonators 6 positive and negative.
The present embodiment shown in vertical view and Fig. 2 of the present embodiment outside as shown in Figure 1 removes the later vertical view of upper cover plate, and this radio-frequency unit comprises a dielectric resonator 5, the metal resonators 6 different from dielectric resonator 5 mode of operations and one group of radio frequency SMA interface 3.Signal is by after antenna reception, and the signal receiving enters filter cell by SMA interface 3, through mixed mode filter input base station system.
Fig. 3 ~ 5 are depicted as the present embodiment mixed mode filter construction schematic diagram.In the present embodiment, the mode of operation that dielectric resonator 5 adopts is TE01, this resonator 5 adopts column type dielectric resonator, wherein cavity 1 has the opening that an available cover plate 9 covers, resonator 5 is fixed on cavity 1, frequency tuning screw rod 13 is positioned on cover plate 9, and it changes the resonance frequency of cavity 1 by changing tuning screw 13 to the distance of bottom.
Be understandable that; for those of ordinary skills; can be equal to replacement or be changed according to the technical solution of the utility model and utility model design thereof, deduce other combining structure, and all these changes or replacement all should be belonged to the protection range of the utility model claim.

Claims (1)

1. a dielectric resonator and metal resonators coupling radio-frequency unit, it is characterized in that, between described dielectric resonator and metal resonators, be provided with " L " type window, the cover plate of described radio-frequency unit is provided with the debugging screw rod through cover plate, under described debugging screw rod, is connected with rosette or metal derby.
CN201420108895.6U 2014-03-12 2014-03-12 Medium resonator and metal resonator coupling radio frequency apparatus Active CN203774433U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420108895.6U CN203774433U (en) 2014-03-12 2014-03-12 Medium resonator and metal resonator coupling radio frequency apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420108895.6U CN203774433U (en) 2014-03-12 2014-03-12 Medium resonator and metal resonator coupling radio frequency apparatus

Publications (1)

Publication Number Publication Date
CN203774433U true CN203774433U (en) 2014-08-13

Family

ID=51291587

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420108895.6U Active CN203774433U (en) 2014-03-12 2014-03-12 Medium resonator and metal resonator coupling radio frequency apparatus

Country Status (1)

Country Link
CN (1) CN203774433U (en)

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