Title :
A Novel Non-Uniform Distributed Amplifier/Attenuator for Millimetre-wave Transmitter MMICs
Author_Institution :
Mimix Broadband, North Sydney, NSW
Abstract :
A non-uniform distributed pHEMT amplifier/attenuator is presented. The topology ensures good intermodulation (OIP3 > 24 dBm) and more than 16 dB of dynamic rage. Rather than optimising the gate and drain transmission line lengths, this design varies transistor width, in both the amplifier and shunt-attenuator devices, to minimise width and maximise performance. These factors make the presented design useful for the construction of compact, high-performance millimetre-wave transmitter MMICs
Keywords :
HEMT integrated circuits; attenuators; distributed amplifiers; field effect MIMIC; intermodulation; millimetre wave amplifiers; radio transmitters; distributed amplifier; distributed attenuator; intermodulation distortion; millimetre-wave transmitter; nonlinear circuits; pHEMT MMIC transmitter; shunt-attenuator devices; Attenuators; Broadband amplifiers; Circuits; Design optimization; Distributed amplifiers; Dynamic range; MMICs; PHEMTs; Power transmission lines; Transmitters; Attenuators; MMIC transmitters; MODFETs; Nonlinear circuits; distributed amplifiers; intermodulation distortion;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249797
