CN210489800U

CN210489800U - High-performance broadband series stripline coupler

Info

Publication number: CN210489800U
Application number: CN201921696801.0U
Authority: CN
Inventors: 李俊; 黄鑫; 孙凯
Original assignee: Nanjing Huamai Technology Co Ltd
Current assignee: Nanjing Huamai Technology Co Ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-05-08
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a high-performance broadband series stripline coupler, the cavity comprises a deep cavity and a shallow cavity, an upper coupling stripline and a lower coupling stripline which are used for adjusting the coupling degree are arranged in the deep cavity, a bias coupling stripline is arranged in the shallow cavity, and one end of the bias coupling stripline is loaded with a power resistor; the upper and lower coupling strip lines and the bias coupling strip line jointly form an air strip line; the upper and lower coupling strip lines and the bias coupling strip line are fixed with the cavity through insulators; a step surface in the cavity is fastened with the joint of the inner cover plate; an outer cover plate is arranged outside the inner cover plate. The beneficial effects of the utility model reside in that, guaranteed that coupler product intermodulation does not receive the power resistance intermodulation's influence, reduced the stripline processing degree of difficulty and the product debugging degree of difficulty simultaneously.

Description

High-performance broadband series stripline coupler

Technical Field

The utility model relates to a high performance broadband series stripline coupler, in particular to broadband coupler product intermodulation index performance, structure, assembly and convenient debugging belong to communication equipment technical field.

Background

Because the existing stripline coupler product mostly adopts a structure of coupling the stripline at the side edge, the power resistor is loaded at the deep cavity part of the cavity. In the mode, when energy is transmitted, due to the energy stored in the deep cavity, the intermodulation index of the coupler is influenced by low intermodulation of the power resistor, so that the intermodulation index of a coupler product is deviated. Meanwhile, the processing difficulty is high when the strip line is deflected, the strip line is easy to deform, and the product debugging difficulty is high.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a high performance broadband series stripline coupler, aim at solve foretell problem, design a high intermodulation performance, processing is simple, convenient assembling, the broadband series stripline coupler product of convenient debugging.

In order to achieve the purpose of the invention, the utility model adopts the following technical scheme:

a high-performance broadband series stripline coupler comprises a cavity and a cavity, wherein the cavity comprises a deep cavity and a shallow cavity, an upper coupling stripline and a lower coupling stripline for adjusting the coupling degree are arranged in the deep cavity, a bias coupling stripline is arranged in the shallow cavity, and a power resistor is loaded at one end of the bias coupling stripline; the upper and lower coupling strip lines and the bias coupling strip line jointly form an air strip line; the upper and lower coupling strip lines and the bias coupling strip line are fixed with the cavity through insulators; a step surface in the cavity is fastened with the joint of the inner cover plate; an outer cover plate is arranged outside the inner cover plate.

Preferably, the cavity is externally connected with a joint, and the joint is an external joint of a sealing ring.

The beneficial effects of the utility model reside in that, guaranteed that coupler product intermodulation does not receive the power resistance intermodulation's influence, guaranteed promptly that coupler product intermodulation can be up to 170dBc, this kind of mode has reduced the stripline processing degree of difficulty and the product debugging degree of difficulty simultaneously.

Drawings

Fig. 1 is a schematic diagram of the internal structure of the present invention.

Fig. 2 is a schematic exterior view of the present invention.

Fig. 3 is a schematic exterior view of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a high-performance broadband serial stripline coupler includes a cavity 100, which includes a deep cavity 101 and a shallow cavity 102, wherein an upper and lower coupling striplines 103 for adjusting a coupling degree are disposed in the deep cavity 101, a bias coupling stripline 104 is disposed in the shallow cavity, and a power resistor 105 is loaded at one end of the bias coupling stripline 104; the upper and lower coupling strip lines 103 and the bias coupling strip line 104 are fixed with the cavity through an insulator 106; the upper and lower coupling striplines 103 and the bias coupling striplines 104 together constitute an air stripline 200.

The utility model discloses when assembling, at first with screw fastening to coupler cavity 100 with connector 107 to with screw fastening in coupler cavity 100 with power resistor 105. The connector 107 comprises a joint and an external waterproof ring, and the coupler cavity 100 is composed of a deep cavity and a shallow cavity. Insulator 106 is next assembled over air stripline 200 and into coupler cavity 100. The air stripline 200 is composed of an upper and lower coupling stripline and an offset coupling stripline; the air strip line 200, the power resistor 105, and the inner conductor of the connector 107 are welded and fastened by solder, the inner cover 108 is assembled, and the inner cover 108 is fixed by the screw 111 and debugged. And finally, after the coupler is debugged, assembling the waterproof ring 109 and the outer cover plate 110 on the cavity to form a coupler finished product, and testing the conventional and intermodulation performance of the coupler.

Claims

1. A high-performance broadband series stripline coupler is characterized in that a cavity comprises a deep cavity and a shallow cavity, an upper coupling stripline and a lower coupling stripline which are used for adjusting the coupling degree are arranged in the deep cavity, a bias coupling stripline is arranged in the shallow cavity, and a power resistor is loaded at one end of the bias coupling stripline; the upper and lower coupling strip lines and the bias coupling strip line jointly form an air strip line; the upper and lower coupling strip lines and the bias coupling strip line are fixed with the cavity through insulators; a step surface in the cavity is fastened with the joint of the inner cover plate; an outer cover plate is arranged outside the inner cover plate.

2. The high performance broadband series stripline coupler of claim 1, wherein a joint is externally connected to the cavity, and the joint is an external joint of a sealing ring.