CN209658377U

CN209658377U - Minimize waveguide coaxial connecter device

Info

Publication number: CN209658377U
Application number: CN201920852311.9U
Authority: CN
Inventors: 蒋运石; 翟宗民; 刘峰; 赖金明
Original assignee: SOUTHWEST INSTITUTE OF APPLIED MAGNETICS
Current assignee: SOUTHWEST INSTITUTE OF APPLIED MAGNETICS
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2019-11-19
Anticipated expiration: 2029-06-06

Abstract

The utility model discloses a kind of miniaturization waveguide coaxial connecter devices, belong to microwave device technical field, including cavity, it is disposed with coupling unit from left to right in the cavity, slow wave line, first match with ceramic and the second match with ceramic, the coupling unit includes inner conductor, the lower end of the inner conductor is connected with the slow wave line, the upper end of the inner conductor is connected with sub-miniature A connector, the sub-miniature A connector is located on the outside of the cavity, the inner conductor is successively arranged with meson set and limit sleeve close to the part of upper end from the inside to the outside, double ridged waveguide is additionally provided in the cavity；The utility model uses the waveguide coaxial connecter of double ridged waveguide and slow wave cable architecture, under the premise of ensuring its performance, so that structure is more compact, the Miniaturization Design for realizing the waveguide coaxial connecter applied to low frequency can be applied to microwave operational frequencies lower (900MHz~20GHz) miniaturization machine system.

Description

Minimize waveguide coaxial connecter device

Technical field

The utility model relates to microwave device technical field more particularly to a kind of miniaturization waveguide coaxial connecter devices.

Background technique

Waveguide coaxial connecter device is widely used in microwave (radio frequency) letter as a kind of waveguide (radio frequency) general wave-beam guide element Number from rectangular waveguide to the conversion art of coaxial transmission link.Relative to micro-strip and with thread elements, waveguide component has higher Power transmission capacity.As the high power and integrated demand of microwave system are increasingly enhanced, the small of high waveguide component how is realized Typeization design, becomes the main direction of studying of waveguide component.

It is well known that due to being limited by waveguide bore, as the working frequency of waveguide component is lower, structure size It will be multiplied.Table 1 is the corresponding relationship of normal rectangular waveguide mouth size and working band.

1 ordinary rectangular sonic wave guide mouth size of table and working band (GB/T11449.2)

Therefore, how in lower working frequency, such as under the working frequency of 900MHz~20GHz, reduce waveguide mouth size, It is this field technical problem to be solved all the time.

Utility model content

The purpose of this utility model, which is that, provides a kind of miniaturization waveguide coaxial connecter device, to solve the above problems.

To achieve the goals above, the technical solution adopted in the utility model is such that a kind of miniaturization Waveguide coaxial Conversion equipment, including cavity, be disposed in the cavity from left to right coupling unit, slow wave line, the first match with ceramic and Second match with ceramic, the coupling unit include inner conductor, and the lower end of the inner conductor is connected with the slow wave line, it is described in lead The upper end of body is connected with sub-miniature A connector, and the sub-miniature A connector is located on the outside of the cavity, the inner conductor close to upper end part from It is interior to meson set and limit sleeve is successively arranged with outside, be additionally provided with double ridged waveguide in the cavity.

As a preferred technical scheme: the cavity includes front side board and back side panel.

By above structure, the waveguide coaxial connecter of the utility model includes squeeze section, multistage matching section, double ridge ripples Lead section and slow wave line segment；Wherein: waveguide is substantially compressed in squeeze section realization；Multistage matching section is using at least two-stage The mode (i.e. the first match with ceramic and the second match with ceramic) matched realizes that the transmission to radiofrequency signal matches, matched series and institute Need matched relative bandwidth related, usual two-stage matching can be achieved with the matching of 30% relative bandwidth；Double ridged waveguide section is in realization pair After the matching of radiofrequency signal wide cut, facilitate the support for realizing rear class slow wave line；Slow wave line is realized and is reduced by the velocity of wave of attenuating traveling wave The wavelength of traveling wave, to obtain the purpose of enough coax segments stiffness of couplings.

Compared with the prior art, the advantages of the utility model are: the utility model uses double ridged waveguide and slow wave knot The waveguide coaxial connecter of structure, so that structure is more compact, realizes the waveguide applied to low frequency under the premise of ensuring its performance The Miniaturization Design coaxially converted；The waveguide coaxial connecter of this miniaturization structure can be applied to waveguide segment size no requirement (NR) Miniaturized application occasion, frequency range can cover 20GHz from 900MHz, especially in 900MHz to 7GHz, and using marking The coaxial waveguide size conversion of Quasi-Waveguide mouth is compared, and after the structure of the utility model, size can reduce 50% or more.

Detailed description of the invention

Fig. 1 is the three-dimensional structure diagram of the coaxial conversion equipment of the orthohormbic structure of the utility model embodiment 1；

Fig. 2 is the cross-sectional view of the coaxial conversion equipment of the orthohormbic structure of the utility model embodiment 1；

Fig. 3 is the partial enlarged view of 2 part of label of Fig. 2；

Fig. 4 is the E-E cross-sectional view of Fig. 2；

Fig. 5 is the structural schematic diagram of slow wave line in Fig. 2；

Fig. 6 is the double ridged waveguide structural schematic diagram in Fig. 4；

Fig. 7 is the function piecewise graph of the utility model embodiment；

Fig. 8 is the three-dimensional structure diagram of the coaxial conversion equipment of the end on structure of the utility model embodiment 2；

Fig. 9 is the cross-sectional view of the coaxial conversion equipment of the termination junction structure of the utility model embodiment 2；

Figure 10 is the partial enlarged view of 2 part of label of Fig. 9；

Figure 11 is the D-D cross-sectional view of Fig. 9；

Figure 12 is the coaxial conversion designs simulation model of S-band waveguide small-sizedization and simulation result；

Figure 13 is the coaxial conversion designs simulation model of C-band waveguide small-sizedization and simulation result；

Figure 14 is the coaxial conversion designs simulation model of X-band waveguide small-sizedization and simulation result；

Figure 15 is the coaxial conversion designs simulation model of Ku wave band waveguide small-sizedization and simulation result.

In figure: 1, cavity；2, coupling unit；3, slow wave line；4, the first match with ceramic；5, the second match with ceramic；6, interior to lead Body；7, limit sleeve；8, sub-miniature A connector；9, meson set；10, front side board；11, double ridged waveguide；12, back side panel；A, squeeze section； B, multistage matching section；C, double ridged waveguide section；D, slow wave line segment.

Specific embodiment

Below in conjunction with attached drawing, the utility model is described in further detail.

Embodiment 1:

Referring to Fig. 1-7, a kind of miniaturization waveguide coaxial connecter device, the present embodiment is orthohormbic structure, including cavity 1, institute It is whole in cuboid shape to state cavity 1, including front side board 10 and back side panel 12, is disposed with coupling from left to right in the cavity 1 Part 2, slow wave line 3, the first match with ceramic 4 and the second match with ceramic 5 are closed, the structure of the coupling unit 2 is as shown in figure 3, packet Inner conductor 6 is included, the lower end of the inner conductor 6 is connected with the slow wave line 3, and the upper end of the inner conductor 6 is connected with sub-miniature A connector 8, The sub-miniature A connector 8 is located at 1 outside of cavity, and the inner conductor 6 is successively arranged with meson close to the part of upper end from the inside to the outside 9 and limit sleeve 7 are covered, is additionally provided with double ridged waveguide 11 in the cavity 1；

The functional section of above structure is as shown in fig. 7, successively include squeeze section A, multistage matching section B, double ridged waveguide section C With slow wave line segment D, in which: waveguide is substantially compressed in squeeze section A realization；Multistage matching section B, which is used, is greater than two-stage The mode matched realizes the transmission matching of radiofrequency signal；Double ridged waveguide section C facilitates realization after realizing to the matching of radiofrequency signal wide cut The support of rear class slow wave line；Slow wave line segment D realizes the wavelength for reducing traveling wave by the velocity of wave of attenuating traveling wave, enough to obtain The purpose of coax segments stiffness of coupling.

Embodiment 2

One end of the coupling unit 2 of the present embodiment is located at the side of cavity 1, as end on structure, remaining and embodiment 1 Identical, structure is shown in Fig. 8-11.

Embodiment 3

Using the coaxial conversion designs simulation model of S-band waveguide small-sizedization of the utility model structure and simulation result, see Figure 12；

The results show that S-band standard waveguide mouth size: 72mm × 34mm, using waveguide mouth size after this patent measure: 25mm × 11.85mm, length 57mm, coupling bandwidth: 1.2GHz@20dB.

Embodiment 4

Using the coaxial conversion designs simulation model of C-band waveguide small-sizedization of the utility model structure and simulation result, see Figure 13；

The results show that C-band standard waveguide mouth size: 40.4mm × 15.8mm, using waveguide mouth ruler after this patent measure It is very little: 13.8mm × 4.7mm, length 35mm, coupling bandwidth: 1.6GHz@20dB.

Embodiment 5

Using the coaxial conversion designs simulation model of X-band waveguide small-sizedization of the utility model structure and simulation result, see Figure 14；

The results show that X-band standard waveguide mouth size: 22.86mm × 10.16mm, using waveguide mouth after this patent measure Size: 9.3mm × 3.2mm, length 24mm, coupling bandwidth: 3GHz@20dB.

Embodiment 6

Using the coaxial conversion designs simulation model of Ku wave band waveguide small-sizedization and simulation result of the utility model structure, see Figure 15；

The results show that Ku wave band standard waveguide mouth size: 15.8mm × 7.9mm, using waveguide mouth ruler after this patent measure It is very little: 5.8mm × 1.96mm, length 20mm, coupling bandwidth: 5.2GHz@20dB.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims

1. a kind of miniaturization waveguide coaxial connecter device, including cavity, it is characterised in that: successively set from left to right in the cavity It is equipped with coupling unit, slow wave line, the first match with ceramic and the second match with ceramic, the coupling unit includes inner conductor, described interior The lower end of conductor is connected with the slow wave line, and the upper end of the inner conductor is connected with sub-miniature A connector, and the sub-miniature A connector is located at described On the outside of cavity, the inner conductor is successively arranged with meson set and limit sleeve close to the part of upper end from the inside to the outside, in the cavity It is additionally provided with double ridged waveguide.

2. miniaturization waveguide coaxial connecter device according to claim 1, it is characterised in that: the cavity includes front side board And back side panel.

3. miniaturization waveguide coaxial connecter device according to claim 1, it is characterised in that: one end of the coupling unit Head is located at the top or side of the cavity.