February 04, 2004

By: Yen Hung
Website: http://www.1st-in-cell-phones.com

Mitsubishi Electric and Kyocera introduce world’s smallest triple-band compatible E-GSM/DCS/PCS transmitter module

The Electronic Device Group of Mitsubishi Electric & Electronics USA, Inc., today announced that its parent, Mitsubishi Electric Corporation, and the Electronic Component Group of Kyocera Corporation have introduced the world’s smallest triple-band compatible E-GSM[1]/DCS[2]/PCS[3] transmitter module for cellular phone applications. The second product in a highly integrated transmitter module family jointly developed by the two companies, the device occupies only 0.1 cubic centimeter — a 50 percent size reduction from the family’s first product, introduced in July 2001. It also improves the effective power-amplifier efficiency by 5 to 8 percent, compared to a conventional power amplifier module solution.

"The newest transmitter module from Mitsubishi Electric and Kyocera achieves a higher level of integration than ever before, combining three bands in a module that is 50 percent smaller," said Bryon Gutow, senior product marketing manager for microwave and RF products at Mitsubishi Electric & Electronics USA, Inc. "The triple-band transmitter coverage enables cellular phone designs to be leveraged across several markets, thereby reducing development costs. In addition, the space savings enabled by the transmitter module’s dramatically reduced package size permits customers to integrate more advanced components into next-generation cellular phones, so they can deliver more powerful and sophisticated functionality."

The new transmitter module attains its remarkably small size primarily through design improvements that enable an 83 percent size reduction of the RF section area, compared to traditional discrete circuitry. The transmitter module integrates an antenna switch module, RF power amplifier, and RF output power monitor coupler in the same unit, along with an EN61000-compliant electrostatic discharge (ESD) protection circuit.

Author Notes:

Yen Hung contributes and publishes news editorial to http://www.1st-in-cell-phones.com.  A cellular phone industry resource featuring articles, comparisons and reviews of cellular phone and service plans.