Murata Unveils Hybrid Multiplexer for Smartphone Wireless Circuits

Murata has developed the LMTP3P series of hybrid multiplexer for smartphones. These hybrid multiplexers can be used for 3 separate frequency bands and thus reduce the number of antennas required in a wireless circuit.

Carrier aggregation and MIMO antenna systems are being increasingly adopted in LTE communications in order to improve communications speeds for smartphones. With LTE, the communication frequencies are divided to low band (698~960 MHz), middle band (1427~2200 MHz) and high band (2300~2690 MHz). With carrier aggregation, which simultaneously uses multiple frequency bands, an antenna is generally required for each frequency band. MIMO systems, which improve communications speed by using multiple transceiving antennas, are also being used, but they increase the quantity of required antennas and make the wireless circuit more complex.

The LMTP3PAA-J63, can branch to the three frequency bands, thereby reducing the number of antennas needed for carrier aggregation. This provides design surface area for MIMO systems that require multiple antennas, and can contribute to size reduction for a device.

Features:

  • Able to use a passive circuit to divide low band (698~960MHz), middle band (1427~2200 MHz) and high band (2300~2690 MHz).
  • Supports LTE and GMS transceiver applications
  • Dimensions (mm): 3.5 (L) x 3.5 (W) x 0.9 max

Mass production of the hybrid multiplexer will began in April, 2017.