Sub-Harmonically Pumped Receiver
Mimix Broadband, Inc. introduces its surface mount technology (SMT) packaged, gallium arsenide (GaAs) monolithic microwave integrated circuit (MMIC), sub-harmonically pumped receiver and transmitter devices. These chips integrate an image reject sub-harmonic anti-parallel diode mixer, an LO buffer amplifier and a low noise amplifier for the receiver, and an output amplifier for the transmitter. The image reject mixer eliminates the need for an image band-pass filter after the amplifier to remove thermal noise at the image frequency. These devices cover the 17 to 25 GHz frequency bands. This receiver and transmitter pair 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 devices come in a 7 x 7 mm QFN surface mount package, offering desirable RF and thermal properties, and the packages are RoHS compliant.