In the fast-evolving world of radio frequency (RF) technology, the Micro-Miniature CoaXial (MMCX) connector series has emerged as a remarkable innovation. These connectors, with a characteristic impedance of 50 Ω and a maximum operating frequency of 6.00 GHz, offer snap-on coupling and are standardized under IEC 61169-52. MMCX connectors, measuring a mere 2.4 mm in diameter, represent a miniaturized version of the MCX RF connector, making them an ideal choice for lightweight and space-limited applications.

In the realm of radio frequency (RF) connectors, the QMA connector series represents a significant advancement in technology, offering quick and secure RF connections with exceptional performance. These connectors, boasting a characteristic impedance of 50 Ω and a maximum operating frequency of 18.00 GHz, introduce the convenience of a 360º rotating snap-on locking interface, enhancing packing density and simplifying installation. Developed as a quick mating replacement for the standard SMA connector, QMA connectors maintain identical internal construction, ensuring consistent RF performance and mechanical durability.

Failure Modes and Mechanisms of RF Coaxial ConnectorsRF coaxial connectors come in a variety of types, such as APC-7, N, TNC, BNC, A-PC3.5, SMA, SMB, and SMC. Various adapters between these connectors are also widely used. Despite there being hundreds of connector types, many reliability issues are

A split or multi-piece structure refers to the design of the outer or inner conductor in RF connectors, where the conductor is composed of two or more parts from the interface port to the section connecting to the cable. In contrast, an integral structure means that the outer or inner conductor is d

1. IntroductionRF coaxial connectors are widely used in radar, remote control equipment, satellite communications, and other systems operating in the microwave frequency range. As signal transmission components, their performance directly affects the quality of transmitted signals. Given their exten