MMCX

The MMCX connector is a type of coaxial connector used primarily in high-frequency applications, particularly within the telecommunications, broadcasting, and industrial sectors. Developed by the German company Siemens, it is designed to provide a robust and reliable connection for RF (radio frequency) signals, typically operating in the frequency range of 9 kHz to 6 GHz. The term "MMCX" stands for "Miniature Male-to-Male Coaxial," reflecting its compact size and dual-male configuration.

The MMCX connector features a male-to-male design, allowing for direct mating without the need for adapters, which simplifies installation and reduces signal loss. It is known for its durability, with a crimp connection that ensures a secure and long-lasting bond between the connector and the coaxial cable. The connector’s compact dimensions—measuring approximately 5.5 mm in diameter—make it suitable for applications where space is limited, such as in portable devices, embedded systems, and compact RF modules.

In addition to its physical attributes, the MMCX connector offers excellent electrical performance, including low insertion loss and high return loss, which are critical for maintaining signal integrity in high-frequency applications. It is often used in conjunction with other connectors like SMA (SubMiniature A) or BNC (Bayonet Neill-Concelman) for interfacing with different types of equipment. The MMCX connector is widely recognized for its versatility, making it a preferred choice in both consumer electronics and professional RF systems.