CN217405676U

CN217405676U - Novel composite waveguide

Info

Publication number: CN217405676U
Application number: CN202221024480.1U
Authority: CN
Inventors: 何凤辉; 王曙光
Original assignee: Chengdu Oula Microwave Components Co ltd
Current assignee: Chengdu Oula Microwave Components Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-09-09
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a novel composite waveguide, including E face port and H face port, still be the metal block of the E face and the H face of 90 degrees relatively including being equipped with two, be equipped with the cavity that is used for transmitting the electromagnetic wave in the metal block, be equipped with the chamfer structure that is used for the standing wave to match in the cavity, E face and H face are equipped with the opening respectively, and on E face port and H face port fixed respectively put through the opening of E face and H face on the metal block, the cavity is communicateing the port on E face and the H face. The utility model provides a pair of novel composite waveguide when the conversion of H face and E face is realized to the waveguide, utilizes the metal block to solve the waveguide and can not realize or the poor problem of standing wave matching effect to the signal loss of electromagnetic wave in this waveguide in the conduction process has been solved.

Description

Novel composite waveguide

Technical Field

The utility model relates to a novel small-size composite waveguide that twists and turns round belongs to microwave technical field.

Background

The waveguide element is a basic functional component of a microwave circuit manufactured by using hollow metal waveguides or cavities and the like, and the waveguide element can form various waveguide networks or be connected with various microwave circuits, and the function of the waveguide element is similar to that of a resistor, an inductor, a circuit, a resonant circuit and the like under low frequency. Generally, microwaves only transmit microwave signals or power, and the waveguide element can control the transmitted microwave signals or power to perform various functions such as waveform transformation, impedance adjustment or power distribution.

In a circuit structure or a communication propagation structure in some narrow spaces, when electromagnetic waves are transmitted from an E surface to an H surface in a conducting element, a twisted waveguide or a bent waveguide needs to be inserted, but because the bent waveguide or the twisted waveguide is used for realizing the conversion between the E surface and the H surface, the manufactured bent waveguide or twisted waveguide is large in size, the twisted waveguide is long in length and inflexible to use, and a compact waveguide structure is needed for realizing the conversion between the E surface and the H surface in the narrow space. However, the waveguide structure has high processing cost, a poor standing wave matching effect in the waveguide transmission process, signal loss in electromagnetic wave conduction, complex processing and material loss.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model aims at providing a novel composite waveguide, it is poor to realize standing wave matching or matching effect in order to solve traditional waveguide, leads to the problem of electromagnetic wave conduction in-process signal loss.

The utility model discloses a following technical scheme realizes:

the utility model provides a novel composite waveguide, including E face port and H face port, still be the metal block of E face and H face of 90 degrees relatively including being equipped with two, be equipped with the cavity that is used for transmitting the electromagnetic wave in the metal block, be equipped with the chamfer structure that is used for the standing wave to match in the cavity, the E face with the H face is equipped with the opening respectively, the E face port with the H face port is fixed the switch-on respectively on the opening of E face and H face, the cavity is communicateing the E face with port on the H face.

In a specific embodiment, preferably, the cavity is rectangular parallelepiped, the chamfering structure is rectangular parallelepiped, and the chamfering structure has three faces, two of which are parallel to the E face and the H face, respectively. The chamfer structure 2 plays a transition role in the transmission of electromagnetic waves in the metal block 1, so that the electromagnetic waves are smoothly transmitted in the waveguide.

In a specific embodiment, preferably, the cavity has a length a, a width B, and a height C, the length of the chamfer structure 12 is a1, the width is B1, and the height is C1, the value of a1 is less than a, the value of B1 is less than B, and the value of C1 is less than C. When the length, width and height of the chamfering structure 2 are smaller than those of the cavity 11, the electromagnetic wave transmission effect is better, and the chamfering structure is more convenient to manufacture through a milling cutter. Different values of the length, the width and the height of the chamfer structure 2 can cause the metal block 1 to form different standing wave ratios.

In a specific embodiment preferably said a1 has a value of 0.3A, said B1 has a value of 0.5B and said C1 has a value of 0.2C. At the moment, the standing wave matching effect of the composite waveguide is good, and the loss rate of the electromagnetic wave in the transmission process of the composite waveguide is low.

In a specific embodiment, a screw hole 5 is preferably arranged on each of the E face port 4 and the H face port 3. Set up the screw and conveniently install on other equipment, the screw is made simply, and the equipment is simple.

Compared with the prior art, the utility model, following advantage and beneficial effect have at least:

the utility model provides a pair of novel composite waveguide for realize the interconversion between E face and the H face, can also utilize the standing wave matching function of metal block, realize the standing wave matching of waveguide at the in-process of transmission electromagnetic wave, can reduce the signal loss in the electromagnetic wave transmission course.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a front view of a novel composite waveguide of the present invention;

fig. 2 is a perspective view of a cavity of a novel composite waveguide of the present invention;

fig. 3 is a front view of the back of a novel composite waveguide of the present invention;

fig. 4 is a side view of a novel composite waveguide of the present invention;

fig. 5 is a top view of the novel composite waveguide of the present invention.

The structure comprises a metal block 1, a cavity 11, a chamfer structure 12, a 3-H surface port, a 4-E surface port, a 5-screw hole, a 6-H surface and a 7-E surface.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely representative for purposes of describing example embodiments of the present invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

It should be understood that, for the term "and/or" as may appear herein, it is merely an associative relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, B exists alone, and A and B exist at the same time; for the term "/and" as may appear herein, which describes another associative object relationship, it means that two relationships may exist, e.g., a/and B, may mean: a exists independently, and A and B exist independently; in addition, for the character "/" that may appear herein, it generally means that the former and latter associated objects are in an "or" relationship.

It should be understood that specific details are provided in the following description to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may not be shown in unnecessary detail to avoid obscuring the examples.

The utility model provides a novel composite waveguide, as shown in figure 1, including E face port 4 and H face port 3, still be the metal block 1 of E face 7 and H face 6 of 90 degrees including being equipped with two relatively, be equipped with the cavity 11 that is used for transmitting the electromagnetic wave in the metal block 1, be equipped with the chamfer structure 12 that is used for the standing wave to match in the cavity 11, E face 7 and H face 6 are equipped with the opening respectively, E face port 4 and H face port 3 are fixed respectively and are put through on the opening of E face 7 and H face 6, cavity 11 is putting through the port on E face 7 and H face 6. Be equipped with two ports that are 90 degrees in metal block 1 and connect respectively at E face port and H face port for realize the microwave from the conversion between E face 7 to the H face 6, and when metal block 1 made the microwave transmit in this composite waveguide, realize the standing wave matching, reduce the signal loss of electromagnetic wave, the signal propagation quality of waveguide has been improved, it is relative wherein E face 7 converts to H face 6, also can realize H face 6 and convert to the waveguide transmission of E face 7, all is the utility model discloses an in the protection scope, wherein cavity 11 and chamfer structure 12 utilize the cutting of milling cutter piece integration to form, save material, it is convenient to make.

Referring to fig. 2, the cavity 11 is rectangular, the chamfer structure 12 is rectangular, and the chamfer structure 12 has three faces, wherein two faces are parallel to the E face 7 and the H face 6 respectively. The chamfer structure 2 plays a transition role in the transmission of the electromagnetic wave in the metal block 1, so that the electromagnetic wave is stably transmitted in the waveguide.

Preferably, referring to fig. 2, the cavity 11 has a length a, a width B, and a height C, the chamfer structure 12 has a length a1, a width B1, and a height C1, the value of a1 is less than a, the value of B1 is less than B, and the value of C1 is less than C. When the length, width and height of the chamfering structure 2 are smaller than those of the cavity 11, the electromagnetic wave transmission effect is better, and the chamfering structure is more convenient to manufacture through a milling cutter. Different values of the length, the width and the height of the chamfer structure 2 can cause the metal block 1 to form different standing wave ratios.

Preferably, referring to fig. 1 and 4, the value of a1 is 0.3A, the value of B1 is 0.5B, and the value of C1 is 0.2C. When the chamfer structure 12 is manufactured to be of the size, the standing wave ratio of the metal block 1 is 1.12, the standing wave matching effect is good, and the loss rate of microwaves in the transmission process of the composite waveguide is low.

And finally, screw holes 5 are formed in the E-surface port 4 and the H-surface port 3. The screw holes 5 are arranged and conveniently installed on other equipment, and the screw holes 5 are simple to manufacture and assemble.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: modifications may be made to the embodiments described above, or equivalents may be substituted for some of the features described. Such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A novel composite waveguide comprises an E-plane port (4) and an H-plane port (3), and is characterized in that: still including being equipped with two relative E face (7) that are 90 degrees and metal block (1) of H face (6), be equipped with cavity (11) that are used for transmitting the electromagnetic wave in metal block (1), be equipped with chamfer structure (12) that are used for the standing wave to match in cavity (11), E face (7) with H face (6) are equipped with the opening respectively, E face port (4) with H face port (3) are fixed the switch-on respectively on the opening of E face (7) and H face (6), cavity (11) are being linked together E face (7) with port on the H face (6).

2. A novel composite waveguide according to claim 1, wherein: the cavity (11) is cuboid, the chamfering structure (12) is three faces in total, and two faces of the chamfering structure are parallel to the E face (7) and the H face (6) respectively.

3. A novel composite waveguide according to claim 1, wherein: the length of the cavity (11) is A, the width is B, the height is C, the length of the chamfer structure (12) is A1, the width is B1, the height is C1, the value of A1 is smaller than A, the value of B1 is smaller than B, and the value of C1 is smaller than C.

4. A novel composite waveguide according to claim 3, wherein: the A1 value is 0.3A, the B1 value is 0.5B, and the C1 value is 0.2C.

5. A novel composite waveguide according to claim 1, wherein: and the E surface port (4) and the H surface port (3) are both provided with screw holes (5).