Directional couplers save power and space in cellular applications

Smaller directional couplers from Murata have low insertion loss and consistent coupling factor, to save space and ease design of RF power-control circuitry for longer battery life in cellular equipment.

The Murata LDC15 series, for applications up to 3W, are 0402 surface-mount devices that save PCB space when monitoring the RF signal to optimise amplifier power consumption. Low insertion loss of 0.2dB ensures minimum impact on RF signal power. The devices have coupling factors from 16.3dB to 20.5dB, which are accurate within 1dB to ease design of the associated external capacitor and shunt resistor. High isolation, between 34dB and 32dB, is also achieved.

Five devices are available in the frequency range 800MHz to 3000MHz, covering UMTS bands 1, 2 and 5.

 

FEATURES 1.0mm x 1.5mm footprint 0.4mm profile 50Ω impedance VSWR 1.4     APPLICATIONS Telematics systems Remote sensors M2M communications Cellular handsets

 

 

Murata / LDC15