Radio Frequency Integrated Circuit Design

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1.1 Introduction
Radio frequency integrated circuit (RFIC) design is an exciting area for research
or product development. Technologies are constantly being improved, and as
they are, circuits formerly implemented as discrete solutions can now be inte-
grated onto a single chip. In addition to widely used applications such as cordless
phones and cell phones, new applications continue to emerge. Examples of new
products requiring RFICs are wireless local-area networks (WLAN), keyless entry
for cars, wireless toll collection, Global Positioning System (GPS) navigation,
remote tags, asset tracking, remote sensing, and tuners in cable modems. Thus,
the market is expanding, and with each new application there are unique
challenges for the designers to overcome. As a result, the field of RFIC design
should have an abundance of products to keep designers entertained for years
to come.
This huge increase in interest in radio frequency (RF) communications has
resulted in an effort to provide components and complete systems on an integrated
circuit (IC). In academia, there has been much research aimed at putting a
complete radio on one chip. Since complementary metal oxide semiconductor
(CMOS) is required for the digital signal processing (DSP) in the back end,
much of this effort has been devoted to designing radios using CMOS technolo-
gies [13]. However, bipolar design continues to be the industry standard
because it is a more developed technology and, in many cases, is better modeled.
Major research is being done in this area as well. CMOS traditionally had the
advantage of lower production cost, but as technology dimensions become
You are here: CodeIdol > Other > Radio Frequency Integrated Circuit Design > page: 22 23 24 25 26 27 28 29 30 31 32

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