Product category:
Communications ICs (Wireless)
News Release from: Mimix Broadband | Subject: XP1003
Edited by the Electronicstalk Editorial
Team on 20 February 2006
Power amplifier is optimised for linear
operation
A new gallium arsenide monolithic microwave integrated circuit power amplifier is optimised for linear operation.
Mimix Broadband has a new gallium arsenide (GaAs) monolithic microwave integrated circuit (MMIC) power amplifier optimised for linear operation This two-stage power amplifier is excellent for modulation levels up to 64 QAM and has a typical third order intercept point of +34dBm
This article was originally published on Electronicstalk on 5 Apr 2005 at 8.00am (UK)
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The device also includes Lange couplers to achieve good input/output return loss and has a small signal gain of 16dB across the band.
Using 0.15um gate length GaAs pseudomorphic high electron mobility transistor (pHEMT) device model technology, this chip covers the 27 to 35GHz frequency band.
This power amplifier, identified as XP1003, is well suited for wireless communications applications such as millimetre-wave point-to-point radio, local multipoint distribution services (LMDS), satcom and Vsat applications.
Dr Jim Harvey, CTO, Mimix Broadband, stated: "The XP1003 incorporates a temperature compensated detector connected by a directional coupler to the amplifier output".
"The use of a directional coupler ensures that the additional distortion induced by the detector does not worsen the overall OIP3 for the amplifier".
"It also allows users to control radio output power more accurately than circuits using nondirectional couplers, since it is less influenced by power reflected from the load".
Mimix performs 100% on-wafer RF, DC and output power testing on the XP1003, 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 metallisation to allow either a conductive epoxy or eutectic solder die attach process.
Engineering samples are available from stock and production quantities are available within 6-8 weeks after order processing.
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