Mimix Broadband, Inc. Introduces 35 to 45 GHz GaAs MMIC Receiver that Includes Integrated LNA, LO Doubler, LO Buffer and Image Reject Mixer

Image reject mixer eliminates the need for a bandpass filter after the LNA

April 28, 2004, Houston, Texas - Mimix Broadband, Inc. announced today the introduction of a Gallium Arsenide (GaAs) monolithic microwave integrated circuit (MMIC) receiver that includes a three stage LNA followed by an image reject fundamental resistive pHEMT mixer, LO doubler and LO buffer amplifier. The image reject mixer eliminates the need for a bandpass filter after the LNA to remove thermal noise at the image frequency. Using 0.15 micron gate length GaAs pseudomorphic high electron mobility transistor (pHEMT) device model technology, this receiver covers the 35 to 45 GHz frequency range and has 4 dB noise figure and 18 dB image rejection across the band.

The receiver, identified as 40REC0382, is well suited for wireless communications applications such as millimeter-wave point-to-point radio, local multipoint distribution services (LMDS), SATCOM, and radar applications.

"The use of fundamental 'resistive mode' mixers provides exceptional linearity and broadband operation, while the incorporation of an on-chip doubler and LO buffer allows the user to provide a low level signal at 16 to 22 GHz, which eases front end design tasks," stated Dr. Jim Harvey, CTO of Mimix Broadband, Inc. "The input referred IP3 is greater than 3 dBm, which makes this circuit suitable for high order QAM systems without the need for variable attenuators in the LNA stages."

Mimix performs 100% on-wafer RF, DC and noise figure testing on the 40REC0382, 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 6-8 weeks ARO. Technical support is also available from Mimix's applications engineers at 281.988.4600. The 40REC0382 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 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 as 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. Mimix Broadband combines its design capabilities in complete communications systems with semiconductor device expertise to deliver innovative solutions for its customers' most challenging applications.