PRESS RELEASE           

Contact: Don Apte

MicroWave Technology Inc.
An IXYS Company
4268 Solar Way
Fremont, CA 94538
Phone: +1 (510) 651 6700   Fax: +1 (510) 952 4000

Fremont, Calif., March 25, 2005, Microwave Technology Inc., An IXYS Company,  (NASDAQ:SYXI), announced that it released two high linearity Power Amplifier products for the 802.11 WiFi and the emerging 802.16 WiMax base station applications.

The first PA product is WPS-495922-02. It operates over 4.9 to 5.9GHz band with 11dB gain and 32dBm output power at 1dB compression point. Based on MwT’s proprietary high linearity MESFET technology, the Power Amplifier achieves superior Error Vector Magnitude (EVM) performance of 2.5% at 26dBm output power level under WiMax test signal (256 carriers and 64 QAM with 2/3 coding factor).  The EVM performance also includes 1.6% of accumulated errors from the modulator and driver stages. The adjacent channel power ratio, ACPR, is less than –40dBc at 25dBm average output power and the third-order intercept point, IP3, is as high as 47dBm at 22dBm output power per tone. WPS-495922-02 is pre-matched to 50 Ohms for easy cascade. The PA is biased at 7.5V drain voltage and about 600mA direct current. The WPS-495922-02 is packaged in MwT 02 package, a low cost surface mount LLC package. The package is lead free and has a proprietary copper alloy based pallet for good thermal conductivity.

The second released linear Product Amplifier product is the WPS‑2527LD5-98. It operates over 2.5 to 2.7GHz band with 10dB gain and 37dBm output power at 1dB compression point. The LDMOS based PA achieves high efficiency of 40% and superior error vector magnitude (EVM) performance of 2.5% at 33dBm output power level under WiMax test signal (256 carriers and 64 QAM with 2/3 coding factor).  The adjacent channel power ratio, ACPR, is less than –40dBc at 33dBm average output power and the third-order intercept point, IP3, is 50dBm at 33dBm output power per tone. WPS‑2527LD5-98 is pre-matched to 50 Ohms with input and output load impedance then greater 10 Ohms. The PA is biased with 26V of drain voltage and 100mA of quiescent direct current. WPS‑2527LD5-98 is packaged in an industry standard metal flange package with excellent heat sinking properties.

“ I am very excited about these new Wireless Power Amplifier products, “ said Dr. Greg Zhou, GM of MwT, “These new products leverage MwT high linearity device technology and excellent engineering design capability, which allow us to address the important 802.11 WiFi and the emerging 802.16 WiMax infrastructure markets with superior performing products with high reliability and competitive pricing.”  Samples of both WPS-495922-02 and WPS‑2527LD5-98 and the corresponding evaluation boards are available now. Contact factory for sample request and a price quote.  For more information send e-mail to sales@mwtinc.com.

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