Mimix Broadband, Inc. Introduces Four Stage 35 to 43 GHz GaAs pHEMT MMIC Power Amplifier

Amplifier Functions as Excellent Saturated Output Stage and Has Balanced Design for Good Output Match

May 15, 2003, Houston, Texas – Mimix Broadband, Inc. announced today the introduction of a Gallium Arsenide (GaAs) monolithic microwave integrated circuit (MMIC) four stage power amplifier, which functions as an excellent saturated output stage. Using 0.15 micron gate length GaAs pseudomorphic high electron mobility transistor (pHEMT) device model technology, this power amplifier covers the 35 to 43 GHz frequency band, and includes Lange couplers to achieve good output return loss. The MMIC device has a typical small signal gain of 26 dB, with 24 dBm typical P1dB compression point.

This power amplifier, identified as XP1005, is well suited for wireless communications applications, such as millimeter-wave point-to-point radio, local multipoint distribution services (LMDS), SATCOM and VSAT applications. The XP1005 is uniquely designed for PDH radios requiring high gain, good output power and the ability to control saturated output power.

“A useful feature of this amplifier is that the saturated output power can be controlled by varying the drain currents, giving well defined output power levels over a >40 dB range,” stated Dr. Jim Harvey, CTO of Mimix Broadband, Inc. “Although optimized for saturated operation over the 37 to 40 GHz band, this device has +32 dBm typical OIP3, and provides better than 20 dB gain to 44 GHz. It uses a balanced design that provides good output match. And it incorporates bias cross-overs, allowing bias to be provided from either side of the circuit for the balanced output stages.”

Mimix performs 100% on-wafer RF, DC and output power testing on the XP1005, 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 today from stock, and production quantities are available 6-10 weeks after order processing. Technical support is also available from Mimix’s applications engineers at 281.988.4600. The XP1005 datasheet and additional product information can be obtained from the Mimix Broadband website at www.mimixbroadband.com.

About Mimix Broadband
Mimix Broadband, Inc., an ISO 9001-registered company, designs, develops and markets high performance monolithic microwave integrated circuits (MMICs) for microwave and millimeter-wave wireless communications applications. Mimix has assembled a team of world-class scientists that has been focused on the development of state-of-the-art millimeter-wave MMICs for the last decade. The Company also 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 our design capabilities in complete communications systems with semiconductor device expertise to provide comprehensive insight in the technology and issues that its customers confront in developing products.