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5. Monolithic sub-assemblies
5.1 Advantages of monolithic subassemblies
All microwave applications, from electronically scanned antennas to car radars, or from 24 GHz radio local loops to 60 GHz ultra-broadband links, require complex sub-assemblies combining amplification, oscillation, mixing or frequency multiplication functions. Following a trend that exists at lower frequencies, the aim is to integrate such sub-assemblies on a reduced number of chips, or even on a single chip. This integration offers several advantages, which are summarized below.
At microwave or millimeter frequencies, connections between chips introduce random variations that can be eliminated by single-chip connections perfectly calculated with CAD software.
This direct connection also eliminates...
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Monolithic sub-assemblies
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Examples of circuits
As a complement to this study of MMICs, we've selected some of the most representative and interesting circuit photos.
These photos are from UMS (United Monolithic Semiconductors). [http://www.ums-gaas.com/]
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The Ultimate Scientific and Technical Reference