rg174 sma cable

　　RG174 SMA cable is a commonly used RF coaxial cable assembly, which consists of RG174 coaxial cable and SMA connector. The following is a detailed introduction:

　　rg174 sma cable Structure

　　RG174 coaxial cable: from inside to outside, it is inner conductor, insulation layer, shielding layer and outer sheath. The inner conductor is usually fine copper wire or copper-clad aluminum wire, which is used to transmit RF signals. The insulation layer uses materials such as polyethylene to isolate the inner conductor from the outer conductor to ensure the stability of signal transmission. The shielding layer is generally composed of copper braided mesh or aluminum foil, which can effectively prevent external electromagnetic interference from entering the cable and prevent internal signals from leaking out. The outer sheath is mostly polyvinyl chloride (PVC) or other wear-resistant and corrosion-resistant materials to protect the cable.

　　SMA connector: It is a widely used small threaded coaxial connector with wide bandwidth, excellent performance, high reliability and long life. The plug and socket of the SMA connector adopt precise mechanical structure and electrical design, which can achieve reliable connection with the RG174 cable and ensure low-loss transmission of RF signals.

　　rg174 sma cable Electrical performance 2

　　Characteristic impedance: usually 50Ω, matching and connecting with various RF devices and antennas, achieving efficient signal transmission, reducing reflection and loss.

　　Frequency range: generally supports the frequency range of DC~12.4GHz, which can meet the needs of various RF communication systems and equipment.

　　Working voltage: generally 335Vr.m.s, and the withstand voltage value is usually 1000Vr.m.s.

　　Insertion loss: relatively low, for example, at 6GHz, the insertion loss is about 0.15dB, which can ensure that the power loss of the signal during transmission is small.

　　Voltage standing wave ratio: The voltage standing wave ratio of the straight connector is generally ≤1.10+0.02f, and the voltage standing wave ratio of the curved connector is ≤1.20+0.03f, which reflects the matching degree of the cable and the connector to the signal. A lower voltage standing wave ratio means less signal reflection and higher transmission efficiency.

　　rg174 sma cable Application fields

　　Wireless communication: commonly used to connect wireless access points, wireless routers, Wi-Fi antennas and other devices to achieve signal transmission of indoor and outdoor wireless networks. In mobile base stations, it can be used to connect base station equipment and antennas to ensure stable transmission of RF signals.

　　GPS and positioning systems: connect GPS receivers and GPS antennas, and transmit weak satellite signals received by the antenna to the receiver for processing to achieve accurate positioning and navigation functions.

　　Test and measurement equipment: in RF test instruments such as spectrum analyzers and network analyzers, as a signal transmission line, the test signal is transmitted from the output end of the instrument to the device under test or antenna, or the measured signal is transmitted from the antenna back to the instrument for analysis and measurement.

　　Automotive electronics: in the vehicle-mounted communication system, GPS navigation system, tire pressure monitoring system, etc. of the car, it is used to connect related RF equipment and antennas to achieve wireless communication and positioning functions between the car and the outside world.

　　Medical equipment: in some medical equipment such as medical imaging equipment, wireless medical monitoring equipment, etc., it is used to connect RF components and antennas to achieve signal transmission and data communication between devices.