Some knowledge points of RF coaxial connector
Release time: 2022-12-13
RF coaxial connectors are generally considered to be connected to cables or components mounted on instruments. As an electrical connection or separation component of transmission lines, it belongs to mechatronics products. Primarily as a bridge. It is essentially a non-uniform coaxial connection line of a connecting structure. It is said that its unevenness is formed by the inevitable step structure, which ensures that the relative position of the inner and outer conductors is fixed, the connection between the inner and outer conductors of the coaxial cable and the connection between the inner and outer conductors of the opposite connector. The connection should be reliable, the contact resistance should be small, so that the discontinuous capacitance is small and there is no signal leakage. Some connectors should be waterproof and dustproof. Generally speaking
RF coaxial connectors are generally considered to be connected to cables or components mounted on instruments. As an electrical connection or separation component of transmission lines, it belongs to mechatronics products. Primarily as a bridge. It is essentially a non-uniform coaxial connection line of a connecting structure. It is said that its unevenness is formed by the inevitable step structure, which ensures that the relative position of the inner and outer conductors is fixed, the connection between the inner and outer conductors of the coaxial cable and the connection between the inner and outer conductors of the opposite connector. The connection should be reliable, the contact resistance should be small, so that the discontinuous capacitance is small and there is no signal leakage. Some connectors should be waterproof and dustproof. Generally speaking, the more complex the internal structure design, the more transition steps, and the worse the electrical performance transmission. Therefore, as long as the internal structure of the connector meets the necessary support, the structure should be simple.
The components of RF coaxial connectors affect their mechanical, electrical and environmental performance. Therefore, during the initial design of the connector, the choice of base material will determine the operation of the entire system. As a designer of RF coaxial connectors, consider material characteristics, connection requirements, cost and other requirements.
RF coaxial connector is a transmission system, the inner and outer conductors are on the same axis, and the insulating medium is used as the support between them. Its function is to transmit various radio frequency electromagnetic signals, connect various subsystems of the communication system or play the role of signal connection and conduction between various devices. It is a passive port element of a communication system.
The coaxial transmission system has obvious advantages in transmitting electromagnetic signals. The cylindrical outer conductor has a good mirror effect, and the electromagnetic energy surrounds the central conductor. A single pure rotating electromagnetic field means that the geometric structure of the system is fully utilized, the impedance is unchanged, and it has excellent broadband characteristics (that is, depending on the structure, the frequency band used can be from DC to tens of GHz or even higher).
The basic structure of the coaxial connector includes:
1. Center conductor (male or female center contact);
2. Dielectric materials outside the inner conductor or insulator;
3. The outside is the outer contact, which plays the same role as the outer shielding layer of the coaxial cable, that is, transmitting the signal as the shielding or grounding element of the circuit.
Due to product and technical characteristics, RF coaxial connectors can be widely used in automobiles, information communication, communication broadcasting, security systems, civil aviation, communication networks, consumer electronics, national defense and military, instrument testing, medical, aerospace, transportation, antennas, Microwave components, RF microwave switches and other occasions and equipment.
The above is some knowledge about the coaxial connector, I hope you can seriously learn to understand the relevant knowledge.
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