| Summary: | 碩士 === 國立中正大學 === 電機工程學系 === 86 === The restriction on the current radio local areanetworks from
getting higher rate is due to thereceived signal fading and
arrival time delayspread. Such multipath effects can be
reducedby antenna pattern diversity. this thesis is to design
and implement at 5.2 GHz beamformer includes FET single-pole-
double-throw switches, power splitters,and phase shifters, which
are simulated with microwaveCAD tools for optmal performance.
The measurement results show that the each output pairs has
power imbalance within +/- 1.5dB and phase imbalance within +/-
2.5 degree.The isolated ports have at least 30 dB isolation
andall ports has at least 9 dB return loss.
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