Basic knowledge of radio frequency connector technology


The concept of radio frequency connector

To understand the basic knowledge of RF connector, we must first connect the concept of the RF connector. In an authoritative academic field, RF connectors are usually considered as a component installed on a cable or installed on the instrument as components that are connected or separated by transmission cable electrical connection. It is an integrated product of electromechanical, which plays a bridge.。

Features of RF connector

The characteristics of radio frequency products are roughly six points. 2. Relying on the mechanical structure to ensure electrical characteristics, it is an integrated product of electromechanical, which is essentially different from other low -frequency connectors. 3 parts of parts are mainly processing machine processing, and there are many handicraft operations, which is difficult to automate assembly. 4 Product update is slow. 5. It is an important part of an electric connector. It belongs to labor -intensive products with a certain technical content. 6. Product reliability, failure mode and failure mechanism.

Classification and main technical parameters

RF connectors are mainly divided into three categories: RF coaxial connector, RF three -coaxial connector, and dual -core symmetrical radio frequency connector. The main purpose is as follows:

RF coaxial connector: mainly used to transmit horizontal electromagnetic waves (TEM wave);

Three coaxial connectors: It is mainly used for occasions where the shielding efficiency has higher requirements, transmits horizontal electromagnetic waves (TEM waves) or transmitted pulse waves;

Double -core symmetrical radio frequency connector: It is mainly used to transmit digital signals with a high rate of high transmission rate.

The main performance parameters of RF coaxial connector

Including characteristic impedance, frequency of usage, ripple loss, insertion loss, isolation, radio frequency leakage, phase consistency, third -order interoperability, etc.

Common materials and plating of RF coaxial connector

The radio frequency connector is mainly composed of parts such as external conductors, internal conductors and insulation support media. The commonly used materials are as follows:

External conductors: stainless steel passivation, copper alloy gold plating, copper alloy nickel plating, copper alloy plating triple alloy, etc.;

Internal conductor: copper alloy gold plating, copper alloy silver plating, etc.;

Insulation support medium: PTFE, PEI, LCP, etc.

Suroun produces more than 30 series of radio frequency connectors, such as SMA, SSMA, BMA, SBMA, SMP, SMPM, N, TNC, 2.92, 2.4, 1.85, 1.0, 3.5, UHF ...... and other products Essence

The highest frequency of product use is 65GHz. The 1.0mm series millimeter wave connector with a working frequency of 110GHz has been successfully developed. Essence Products are widely used in weapons and equipment, communications, rail transit and medical care.