Mimix Broadband, Inc. Introduces Differentially Fed GaAs MMIC Doubler with RF Buffer Amplifier

Doubler Suitable for Driving Fundamental Mixer Devices

February 18, 2005, Houston, Texas - Mimix Broadband, Inc. announced today the introduction of a Gallium Arsenide (GaAs) monolithic microwave integrated circuit (MMIC) differentially fed doubler with RF buffer amplifier that can be used to drive fundamental mixer devices. Using 0.15 micron gate length GaAs pseudomorphic high electron mobility transistor (pHEMT) device model technology, this doubler converts input signals in the 10 to 20 GHz frequency range to output signals in the 20 to 40 GHz frequency range, and has +13 dBm output drive at +0 dBm input.

The doubler, identified as 40DBL0458, is ideal to drive Mimix's highly integrated receivers, and is suitable for wireless communications applications such as millimeter-wave point-to-point radio, local multipoint distribution services (LMDS), and SATCOM applications.

"By using an active balun and full wave balanced doubler, followed by a wideband distributed buffer amplifier, this circuit achieves more than an octave of bandwidth with good fundamental suppression," stated Dr. Jim Harvey, CTO of Mimix Broadband, Inc. "It provides over 12 dB conversion gain, with output power levels sufficient to drive fundamental mixers or power amplifiers at 16 to 46 GHz."

Mimix performs 100% on-wafer RF, DC and output power testing on the 40DBL0458, 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, along with production quantities. Technical support is also available from Mimix's applications engineers at 281.988.4600. The 40DBL0458 datasheet and additional product information can be obtained from the Mimix Broadband website at www.mimixbroadband.com.

About Mimix
Mimix Broadband, Inc., an ISO 9001-registered company, designs, develops and supplies 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 focused on the development of state-of-the-art millimeter-wave MMICs for the last decade. The Company also leverages strategic partnershipsfor manufacturing, in order to expedite the time-to-market cycle and meet market requirements. Mimix combines its design capabilities in complete communications systems with semiconductor device expertise to deliver innovative solutions for its customers' most challenging applications.