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At this week’s 2008 GSMA Mobile World Congress in Barcelona, Spain, Anadigics Inc of Warren, NJ, USA expanded its portfolio of products for WiMAX and WiBro (Korea) systems by launching the AWM6422 power amplifier. The new PA operates in the 2.3-2.4GHz frequency band allocated for broadband mobile wireless services and supports the IEEE 802.16e-2005 wireless standard as well as the IEEE 802.16d-2004 and ETSI EN301-021 standards.

A variation of the AWM6423 (introduced last year), the AWM6422 is a high-performance device with exceptional linearity and efficiency at high levels of output power, says Anadigics. It requires a nominal +3.3V supply, but also provides enhanced RF performance when used with supply voltages as high as +4.2V. The EVM contribution is low at high output power levels: -2.5% EVM at +22dBm and -4 % EVM at +23.5dBm (+3.3V) and -2.5% EVM at +23.5dBm and -4 % EVM at +25dBm (+4.2V). RF gain is more than 30dB.

In addition to using Anadigics’ patented InGaP-Plus technology, the AWM6422’s 4.5mm x 4.5mm x 1.4mm surface-mount package includes: an integrated 25dB attenuator and output power detector; and 50Ω matched RF ports for reduced external component count.

The AWM6422 is sampling now (with volume production scheduled for the end of first-quarter 2008), and is already being integrated into USB adaptors manufactured for a major Korean telecom company, Anadigics says.

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