精品 Berkeley 2009 博士论文：mmWave Power amplifier

northfish

Latest Berkeley Ph.D dissertations. both on TX and power amplifiers.

enjoy.

In the last few years we have seen an increased interest in millimeter-wave CMOS
circuits and communication systems both in academia and industry. The feasibility of
CMOS circuits at 60 GHz, the rising interest in digital video, short range, and other high
data rate applications, along with the worldwide availability of unlicensed spectrum
around 60 GHz have spurred a wave of research targeting integrated 60 GHz CMOS
transceivers as a way to achieving low cost, highly integrated, high bandwidth, high data
rate communication systems.
In recent years, a number of 60 GHz CMOS building blocks and integrated
receivers have been demonstrated. However, the low supply voltage, thin gate oxide, low
breakdown voltage, lossy silicon substrate, and power gain - output power tradeoff of
CMOS technology result in the millimeter wave power amplifier being the most difficult
block to implement in CMOS. A number of 60 GHz CMOS power amplifiers employing
different topologies have been reported to date, however the output power has been
relatively low, limiting the amplifiers to short-range applications. It is becomingincreasingly important to use more efficient power combining techniques in order to
increase the output power capability of power amplifiers in order to enable medium and
long-range applications.
This research aims at exploring the challenges facing the design and
implementation of 60 GHz power amplifiers in standard 90 nm CMOS processes. The
design, modeling, and layout optimization of both passive structures such as transmission
lines, capacitors, RF pads as well as active devices operating at 60 GHz are investigated.
A low-loss power combining technique taking advantage of millimeter-wave amplifiers
topologies is presented. Four power amplifiers are implemented in a standard 90 nm 1V
CMOS process. Record performance is reached in terms of 1dB compression and
saturation output power.

[ 本帖最后由 northfish 于 2009-2-26 03:50 编辑 ]

northfish

another one.

Berkeley2009 Energy Efficient Wireless Transmitters Polar and Direct-Digital Modulation Architectures.pdf

[ 本帖最后由 northfish 于 2009-2-25 01:24 编辑 ]

bing131

看看了解了解

UnknownGuest

谢楼主了，不错

kevinwjs

kevinwjs

BIGHAMMER

好东西

kevinwjs

shift

很好的资料，只是我不做cmos的。

phase2000