Mimix Broadband Introduces 26 to 40 GHz GaAs pHEMT MMIC Power Amplifier Optimized for Linear Operation

Designed for Millimeter-wave Point-to-Point Radio, LMDS and SATCOM Applications

August 2, 2001, Houston, Texas ­ Mimix Broadband announced today the introduction of a Gallium Arsenide (GaAs) monolithic microwave integrated circuit (MMIC) two stage power amplifier optimized for linear operation with a typical third order intercept point (IP3) of +36 dBm. Using 0.15 micron gate length GaAs pseudomorphic high electron mobility transistor (pHEMT) device model technology, this power amplifier covers the 26 to 40 GHz frequency bands. The MMIC device also has a typical small signal gain of 12 dB and includes Lange couplers to achieve good input/output return loss.

This power amplifier, identified as XP1001, provides equipment designers with a highly optimized product with good linearity and is well suited for wireless communications applications such as millimeter-wave point-to-point radio, local multipoint distribution services (LMDS), SATCOM and VSAT applications. Mimix Broadband also offers this same power amplifier, identified as XP1002, with an on-chip temperature compensated, output power detector.

"The XP1001 amplifier delivers 20 dBm power level in 16QAM radios meeting ETSI spectral mask requirements," stated Dr. Jim Harvey, CTO of Mimix Broadband. "With a relatively small level of back-off, it can satisfy linearity requirements for higher-order QAM systems, such as 128QAM which allows 155 Mbps data rates in 28 MHz channels."

Mimix performs 100% on-wafer RF, DC and output power testing on the XP1001, as well as 100% visual inspection to MIL-STD-883 method 2010. The chip also has surface passivation to protect and provide a rugged part with backside via holes and gold metallization to allow either a conductive epoxy or eutectic solder die attach process.

Engineering samples are available in limited quantities from stock and production quantities are available within 12 to 16 weeks after order processing. Technical support is also available from Mimix’s applications engineers at 281.988.4600. Additionally, please visit Mimix’s website (www.mimixbroadband.com) for the XP1001 datasheet and additional product information.

About Mimix Broadband
Mimix Broadband designs, develops and markets high performance Gallium Arsenide (GaAs) monolithic microwave integrated circuits (MMICs) for broadband wireless access technologies at millimeter-wave frequencies. The Company leverages strategic partnerships for manufacturing in order to expedite the time-to-market cycle and meet market requirements. Backed by experienced, highly successful stakeholders, Mimix Broadband combines its expertise in overall radio system design to provide comprehensive insight in the technology and issues that its customers confront in designing their products.