MMCX connector
Encyclopedia
MMCX connectors are coaxial
RF connector
s similar to MCX
but smaller. They conform to the European CECC 22 000 specification.
The connectors have a lock-snap mechanism allowing 360-degree rotation and usually have a 50 Ω impedance
. They offer broadband capability from DC
to 6 GHz
.
MMCX connectors are most commonly seen on Wi-Fi
PCMCIA cards as antenna connectors or as connectors for external GPS antennas on small devices like PDAs or GPS receivers
. They were developed in the 1990s.
Coaxial
In geometry, coaxial means that two or more forms share a common axis; it is the three-dimensional linear analogue of concentric.Coaxial cable, as a common example, has a wire conductor in the centre a circumferential outer conductor and an insulating medium called the dielectric separating...
RF connector
RF connector
A coaxial RF connector is an electrical connector designed to work at radio frequencies in the multi-megahertz range.RF connectors are typically used with coaxial cables and are designed to maintain the shielding that the coaxial design offers. Better models also minimize the change in transmission...
s similar to MCX
MCX connector
MCX connectors are coaxial RF connectors developed in the 1980s. They have the same inner contact and insulator dimensions as the SMB connector but are 30% smaller. MCX is standardized in European CECC 22220....
but smaller. They conform to the European CECC 22 000 specification.
The connectors have a lock-snap mechanism allowing 360-degree rotation and usually have a 50 Ω impedance
Characteristic impedance
The characteristic impedance or surge impedance of a uniform transmission line, usually written Z_0, is the ratio of the amplitudes of a single pair of voltage and current waves propagating along the line in the absence of reflections. The SI unit of characteristic impedance is the ohm...
. They offer broadband capability from DC
Direct current
Direct current is the unidirectional flow of electric charge. Direct current is produced by such sources as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type. Direct current may flow in a conductor such as a wire, but can also flow through...
to 6 GHz
GHZ
GHZ or GHz may refer to:# Gigahertz .# Greenberger-Horne-Zeilinger state — a quantum entanglement of three particles.# Galactic Habitable Zone — the region of a galaxy that is favorable to the formation of life....
.
MMCX connectors are most commonly seen on Wi-Fi
Wi-Fi
Wi-Fi or Wifi, is a mechanism for wirelessly connecting electronic devices. A device enabled with Wi-Fi, such as a personal computer, video game console, smartphone, or digital audio player, can connect to the Internet via a wireless network access point. An access point has a range of about 20...
PCMCIA cards as antenna connectors or as connectors for external GPS antennas on small devices like PDAs or GPS receivers
GPS navigation device
A GPS navigation device is any device that receives Global Positioning System signals for the purpose of determining the device's current location on Earth...
. They were developed in the 1990s.