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2.4 GHz SMD On-Ground Antenna

Molex’s 2.4 GHz SMD antenna requires no ground clearance and offers significant
PCB real-estate savings

Developed with the power and precision of Laser Direct Structuring (LDS) technology, Molex's 2.4 GHz SMD on-ground antenna is the smallest on-ground MID (Molded Interconnect Device) antenna in the market. The lightweight MID chip antenna weighs only 0.03 g and is used in portable electronic devices based on Bluetooth, Wi-Fi, ZIGBEE and other wireless standards. These devices include tablet PCs, headsets, smart meters and more. Measuring only 3.00 mm by 3.00 mm by 4.00 mm (0.118" by 0.118" by 0.157") and used on one side of the PCB, the antenna allows board makers to realize significant PCB real estate savings by leaving the ground layers in the PCB intact while freeing up space on the reverse side of the PCB for other component assemblies.

This monopole antenna has an omni-directional radiation pattern and requires only simple stripline matching on the PCB, without the need for discrete components. It is fully compatible with SMD and reflow processes and usable as a stand-alone device without the need for cable connection. Besides offering good thermal properties, the LCP body of the antenna provides a higher mechanical strain tolerance than ceramic ones.
Molex's 2.4 GHz SMD On-ground Antenna

  • Consistent antenna RF performance with the application of Laser Direct Structuring (LDS) - a technology known for its excellent precision, performance and repeatability
  • The high-temperature base material and the metal plating technology employed allows the antenna to endure reflow temperatures - an ideal condition for a standard SMT process
  • Valuable PCB real estate savings on both sides of the PCB with the use of this miniature antenna
  • No removal of ground layers from beneath the antenna is needed
  • The product is halogen-free and RoHS-compliant

Digi-Key P/N Manufacturer P/N Description
WM4893CT-ND 0479480001 ANTENNA 2.4GHZ 50 OHMS SMD Datasheet

Other Antenna Options by Molex
Digi-Key P/N Manufacturer P/N Description
WM5028-ND 0479500001 WIFI ANTNNA 100MM FLEX 1.37X.34" Datasheet
WM5029-ND 0479501001 WIFI ANTNNA 150MM FLEX 1.37X.34"
WM5030-ND 0479502001 WIFI ANTNNA 200MM FLEX 1.37X.34"
WM5031-ND 0479500011 WIFI ANTNNA 100MM FLEX 1.41X.61"
WM5032-ND 0479501011 WIFI ANTNNA 150MM FLEX 1.41X.61"
WM5033-ND 0479502011 WIFI ANTNNA 200MM FLEX 1.41X.61"