阅读说明：本技术 一种t型波导超薄一体式的铁氧体隔离器 (Ultrathin integrated ferrite isolator with T-shaped waveguide ) 是由 刘姬 王欣丰 杨婷婷 顾春健 王兵 于 2021-01-26 设计创作，主要内容包括：本发明提供一种T型波导超薄一体式的铁氧体隔离器内部腔体包括：一体结构的主波导壳体；主波导壳体内具有波导腔体；波导腔体为对称的T型结；T型结包括两翼横腔体和竖直主腔体；两翼横腔体的末端贯穿主波导壳体。其优点在于一体化加工成型,无需对器件进行装配,大大提高了装配效率,益于工程施工；从产品设计方面,采用一体化加工成型,结构紧凑、简单,降低加工生产过程的难度,大大降低了人力、物力生产成本；从电气性能方面,隔离度较高,驻波比较小。(The invention provides an internal cavity of a T-shaped waveguide ultrathin integrated ferrite isolator, which comprises: a main waveguide housing of unitary construction; the main waveguide shell is internally provided with a waveguide cavity; the waveguide cavity is a symmetrical T-shaped junction; the T-shaped junction comprises two wing transverse cavities and a vertical main cavity; the tail ends of the two wing transverse cavities penetrate through the main waveguide shell. The method has the advantages that the method is integrally processed and formed, the device does not need to be assembled, the assembly efficiency is greatly improved, and the method is beneficial to engineering construction; from the aspect of product design, the integrated processing and forming are adopted, the structure is compact and simple, the difficulty in the processing and production process is reduced, and the production cost of manpower and material resources is greatly reduced; from the aspect of electrical performance, the isolation degree is high, and standing waves are small.)

1. The utility model provides a ferrite isolator of ultra-thin integral type of T type waveguide which characterized in that: the method comprises the following steps: a main waveguide housing (100) of unitary construction;

wherein the main waveguide shell (100) is provided with a waveguide cavity (110);

the waveguide cavity (110) is a symmetrical T-shaped junction; the T-shaped junction comprises two wing transverse cavities (111) and a vertical main cavity (112);

the tail ends of the two wing transverse cavities (111) penetrate through the main waveguide shell (100).

2. The ultrathin unitary ferrite isolator of claim 1 wherein:

wherein the two-wing transverse cavity (111) is provided with a pair of symmetrically arranged transverse matching steps (111 a);

the two transverse matching steps (111a) are respectively positioned at two sides of the two wing transverse cavities (111) and are positioned close to one side where the vertical main cavity (112) is positioned.

3. The ultrathin unitary ferrite isolator of claim 1 wherein:

wherein the main vertical cavity (112) has at least one pair of symmetrically arranged vertical matching steps.

4. The ultrathin unitary ferrite isolator of claim 1 wherein:

the number of the vertical matching steps is two, namely a first vertical matching step (112a) and a second vertical matching step (112 b).

5. The ultrathin unitary ferrite isolator of claim 1 wherein:

wherein the main waveguide housing (100) further comprises a load slot (130);

one side of the load slot (130) is communicated with the vertical main cavity (112), and the other side of the load slot is communicated with the main waveguide shell (100).

6. The ultrathin unitary ferrite isolator of claim 5, wherein: further comprising a matching load (200);

the matched load (200) is disposed within the load slot (130).

7. The ultrathin unitary ferrite isolator of any one of claims 1 to 6, characterized by:

wherein the bus waveguide housing (100) further has a ferrite receiving groove (140);

the ferrite accommodating groove (140) is located at the connecting position of the T-shaped junction comprising the two-wing transverse cavity (111) and the vertical main cavity (140).

8. The ultrathin unitary ferrite isolator of claim 7 with T-shaped waveguide, wherein: further comprising a ferrite (300);

wherein the ferrite (300) is located within the ferrite receiving slot (140).

Technical Field

The invention relates to an isolator, in particular to a T-shaped waveguide ultrathin integrated ferrite isolator.

Background

The current waveguide ferrite isolator usually adopts a classic Y-shaped junction structure or a triangular structure. In addition, the conventional waveguide ferrite isolator usually adopts a symmetrical structure or an asymmetrical structure, such as a miniature broadband waveguide isolator of patent No. CN210136996U, and such structures are formed by split machining, i.e. a device is divided into several parts to be machined. Therefore, in the process of machining and forming, a plurality of dies are needed to be adopted for machining and forming, so that the machining process is more complex, the machining difficulty is improved, and finally the cost of design, machining and assembly is greatly increased.

Disclosure of Invention

The T-shaped waveguide ultrathin integrated ferrite isolator provided by the invention adopts an integrated structure from the aspect of engineering processing, has a simpler and more compact structure, is easy to process, is simpler to operate and assemble, greatly saves manpower and material resources, and reduces the cost;

to overcome the disadvantages of the prior art.

The invention provides an internal cavity of a T-shaped waveguide ultrathin integrated ferrite isolator, which comprises: a main waveguide housing 100 of an integrated structure; the main waveguide shell 100 has a waveguide cavity 110 therein; the waveguide cavity 110 is a symmetrical T-junction; the T-shaped junction comprises two wing transverse cavities 111 and a vertical main cavity 112; the ends of the wing cavities 111 extend through the main waveguide housing 100.

Further, the present invention provides a T-waveguide ultrathin integrated ferrite isolator, which may further have the following features: the two-wing transverse cavity 111 is provided with a pair of symmetrically arranged transverse matching steps 111 a; the two lateral matching steps 111a are respectively located at two sides of the two wing lateral cavities 111 and located at a side close to the vertical main cavity 112.

Further, the present invention provides a T-waveguide ultrathin integrated ferrite isolator, which may further have the following features: the main vertical cavity 112 has at least one pair of symmetrically disposed vertical mating steps.

Further, the present invention provides a T-waveguide ultrathin integrated ferrite isolator, which may further have the following features: the number of the vertical matching steps is two pairs, which are a first vertical matching step 112a and a second vertical matching step 112b, respectively.

Further, the present invention provides a T-waveguide ultrathin integrated ferrite isolator, which may further have the following features: the main waveguide housing 100 further includes a loading slot 130; the loading slot 130 communicates with the vertical main cavity 112 on one side and with the through main waveguide housing 100 on the other side.

Further, the present invention provides a T-waveguide ultrathin integrated ferrite isolator, which may further have the following features: also included is a matched load 200; a matched load 200 is disposed within the load slot 130.

Further, the present invention provides a T-waveguide ultrathin integrated ferrite isolator, which may further have the following features: the main waveguide housing 100 also has a ferrite receiving slot 140; the ferrite accommodating groove 140 is located at the connecting position of the T-shaped junction including the two-wing transverse cavity 111 and the vertical main cavity 140.

Further, the present invention provides a T-waveguide ultrathin integrated ferrite isolator, which may further have the following features: also included are ferrites 300; the ferrite 300 is located in the ferrite accommodating groove 140.

The invention provides a T-shaped waveguide ultrathin integrated ferrite isolator, which solves the limitation of processing and molding of a plurality of parts of the traditional ferrite isolator, greatly reduces the production and equipment cost and is simple to operate.

Drawings

Fig. 1 is a perspective view of a T-waveguide ultrathin integrated ferrite isolator in an embodiment.

Fig. 2 is a front view of a main waveguide housing of an integrated structure in the embodiment.

Fig. 3 is a graph showing a simulation result of the T-waveguide ultrathin one-piece ferrite isolator in the embodiment.

Fig. 4 is a graph showing the test results of the T-waveguide ultrathin one-piece ferrite isolator in the example.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Examples

Fig. 1 is a perspective view of a T-waveguide ultrathin integrated ferrite isolator in an embodiment.

As shown in fig. 1, the T-waveguide ultrathin integrated ferrite isolator, for example, BJ140WR62 integrated ferrite isolator, includes: main waveguide housing 100, matching load 200 and ferrite 300 of a unitary structure. It should be noted that, because the main waveguide housing 100 is an integral structure, the internal structure cannot be seen, and a part of the surface of the main waveguide housing 100 is removed in the drawing, so that the internal structure of the main waveguide housing 100 is exposed.

Fig. 2 is a front view of a main waveguide housing of an integrated structure in the embodiment.

As shown in fig. 2, main waveguide housing 100 has a waveguide cavity 110, a loading slot 130, and a ferrite receiving slot 140 therein.

The waveguide cavity 110 is a symmetrical T-junction. The T-shaped junction comprises two wing transverse cavities 111 and a vertical main cavity 112; here, the horizontal and vertical directions are for convenience of describing the relative position structure of the T-shape, and do not mean that the components are always in the horizontal or vertical direction.

The tail ends of the two wing transverse cavities 111 penetrate through the main waveguide shell 100 to form an input port and an output port; of course, a T-junction machined port.

The two-wing transverse cavity 111 is provided with a pair of symmetrically arranged transverse matching steps 111 a; the two lateral matching steps 111a are respectively located at the left and right sides of the two wing lateral cavities 111 and located near the side where the vertical main cavity 112 is located.

In this embodiment, the vertical main cavity 112 has two pairs of vertical matching steps, namely a first vertical matching step 112a and a second vertical matching step 112b, which are symmetrically arranged.

One side of the load slot 130 is communicated with the vertical main cavity 112, and the other side thereof penetrates through the main waveguide shell 100 to form an isolated port; of course, this location may also be a process port. A matched load 200 is disposed within the load slot 130.

The ferrite accommodating groove 140 is located at the connecting position of the T-shaped junction including the two-wing transverse cavity 111 and the vertical main cavity 140. The depth of the ferrite receiving groove 140 is greater than the depth of the T-junction. The ferrite 300 is located in the ferrite accommodating groove 140.

As shown in FIG. 3 and FIG. 4, the national standard specified frequency range of the BJ140 rectangular waveguide is 11.9 to 18.0GHz, and the frequency of the ferrite isolator in the figure is 12.7 to 13.25 GHz. The echoes S (1,1) and S (2,2) of the two ports are both smaller than-20 dB, namely the standing wave ratio is smaller than 1.25, and the isolation is larger than 24 dB. The simulation and actual measurement results are well matched.

The T-shaped waveguide integrated ferrite isolator is suitable for BJ 58-BJ 220 rectangular waveguides.

The T-shaped waveguide integrated ferrite isolator provided by the invention is integrally machined and formed in the aspect of engineering processing, and does not need to be assembled, so that the assembly efficiency is greatly improved, and the T-shaped waveguide integrated ferrite isolator is beneficial to engineering construction; from the aspect of product design, the integrated processing and forming are adopted, the structure is compact and simple, the difficulty in the processing and production process is reduced, and the production cost of manpower and material resources is greatly reduced; from the aspect of electrical performance, the isolation degree is high, and standing waves are small.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.