With the increasing demand for intelligent driving systems and in car entertainment systems in new energy vehicles, as well as the increasing integration and thinness of products, the transmission speed of corresponding in car signal connection cables has also increased year by year. Traditional LVDS signal cables, mainly composed of electronic cables, can no longer meet the requirements. The emergence of ultra-fine coaxial (MCC/SGC) has effectively solved the difficulties in this regard; Ultra fine coaxial lines have many advantages, such as small size, long lifespan, good flexibility, stable impedance, and good shielding effect. FAKRA coaxial cables are high-speed and high-frequency cables based on ultra fine coaxial (MCC/SGC) cables for transmitting RF signals or high-definition camera signals.

And FAKRA automotive connectors are designed specifically for automotive applications; The connector that meets the antenna standard is called the FAKRA connector, which adopts the structure of ultra-fine coaxial (MCC/SGC) cable and single wire winding cable. The connector that also meets the antenna standard is the FAKRA coaxial cable. Its typical structure is shown in the figure below, mainly including: FAKRA connector, FAKRA inline connector, coaxial cable, PCB board end connector.

FAKRA Coaxial Cable Connection Structure Diagram

1、 Fakra connector

The structure of Fakra connectors:

Fakra connectors are generally used for automotive industry RF signal connectors, GPS positioning systems, satellite radios, and in car internet access. FAKRA automotive connectors are designed specifically for automotive applications. They establish a unified connector system and standards that everyone will follow based on the SMB connector interface FAKRA (Automated Expert Group). Due to its unique standard locking system, FAKRA connectors meet the high-performance and safety requirements of today's automotive industry.

The structure of FAKRA connectors can be divided into plug-in or plug-in types, with an impedance specification of 50 ohms. The appearance of FAKRA connectors can be divided into straight or right angle types as well as installation free types. The termination methods for these FAKRA connectors are crimping/welding or welding.

1. The overall structure of the board end and harness end connectors