High-power coaxial fixed attenuator

A fixed attenuator, high-power technology, used in waveguide-type devices, electrical components, circuits, etc., can solve problems such as the difficulty of coaxial fixed attenuators, and achieve good rapid heat dissipation, good mechanical stability, and strong anti-burning ability. Effect

CN102820506AActive Publication Date: 2012-12-12SHANGHAI HUAXIANG COMP COMM ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-12-12

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Abstract

The invention discloses a high-power coaxial fixed attenuator which mainly comprises an SMA (shape memory alloy) female joint, an SMA male joint and an attenuator cavity. The cavity comprises radiators, two core cavities, two attenuation slices, ground clamps and a connector; the male joint comprises a swivel nut, a clamp ring, a male shell, an insulator, a male inner conductor, a spring and a contact cap; the female joint comprises a female shell, a female inner conductor, an insulator, a spring and a contact cap; and the connector comprises a connector inner conductor, a connector shell, an insulator, a spring and a contact cap. Metal oxide is used as a substrate, and an advanced resistance technology is adopted, so that the high-power coaxial fixed attenuator is high in the power density and stable in resistance. Besides, owing to the optimally designed card-shaped attenuation slices, requirements on small standing waves and wide frequency band are met. In addition, the working frequency of the product ranges from frequency of direct current to 26.5GHz, the power capacity of the attenuator is 50W, and the high-power coaxial fixed attenuator has good and quick radiating ability and is high in burning resistance and good in mechanical stability and repeatability.
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Description

technical field

[0001] The invention relates to the field of microwave passive devices, in particular to a microwave coaxial fixed attenuator used in the telecommunications industry, electronic equipment and radar. Background technique

[0002] The coaxial fixed attenuator is a kind of microwave component, which is widely used in microwave communication, radar and other equipment. The coaxial fixed attenuator must meet the electrical and mechanical performance requirements of the system, and at the same time, it must be simple and efficient in mass production. High pass rate and low production cost. The coaxial fixed attenuator is composed of a connector and an attenuator. The connector includes two parts: a female connector and a male connector. Under normal circumstances, it is very difficult to achieve DC-26.5GHz high-frequency coaxial fixed attenuators. It is also necessary to use T-shaped thick-film circuit attenuators made of alumina ceramic substrates to make DC-26.5...

Examples

Embodiment Construction

[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0016] Such as figure 1 and figure 2 As shown, a high-power coaxial fixed attenuator according to the present invention is composed of an SMA female connector 4 , an SMA male connector 1 and a cavity 2 . The cavity 2 is composed of a radiator 12 , two shells 13 , two core cavities 14 , an attenuation sheet (1) 16 , an attenuation sheet (2) 20 , a grounding clip 15 , and a connecting body 3 . Connected body 3 is made up of connected inner conductor 17, connected shell 18, insulator 19, spring 10, contact cap 11. The male connector 1 includes a screw sleeve 5 , a snap ring 6 , a male housing 7 , an insulator 8 , a male inner conductor 9 , a spring 10 , and a contact cap 11 . The female connector 3 consists of a female housing 21, a female inne...