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【文件名】:08512@52RD_Impedance Matching and the Smith Chart The Fundamentals .pdf
【格 式】:pdf
【大 小】:904K
【简 介】:When dealing with the practical implementation of RF applications, there are always some
nightmarish tasks. One is the need to match the different impedances of the interconnected
blocks. Typically these include the antenna to the low-noise amplifier (LNA), power-amplifier
output (RFOUT) to the antenna, and LNA/VCO output to mixer inputs. The matching task is
required for a proper transfer of signal and energy from a "source" to a "load."
At high radio frequencies, the spurious elements (like wire inductances, interlayer capacitances,
and conductor resistances) have a significant yet unpredictable impact on the matching
network. Above a few tens of megahertz, theoretical calculations and simulations are often
insufficient. In-situ RF lab measurements, along with tuning work, have to be considered for
determining the proper final values. The computational values are required to set up the type of
structure and target component values.
【目 录】:
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