Ultrawide Band Antenna and Filter Design
Ultrawide Band Antenna and Filter Design
Ultrawide Band Antenna and Filter Design
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Required performance of RF device for UWB<br />
10dB<br />
45<br />
BW(-10dB b<strong>and</strong> width) ≧ 1/5 fc<br />
or more than 500MHz b<strong>and</strong> width<br />
Transmitting output<br />
BW<br />
fc<br />
frequency<br />
need to satisfy electric<br />
characteristics of filter <strong>and</strong><br />
balun with wide b<strong>and</strong>width<br />
<br />
<strong>Filter</strong><br />
Balun<br />
-Insertion loss at pass b<strong>and</strong><br />
-Insertion loss at pass b<strong>and</strong><br />
-Phase imbalance<br />
-Amplitude imbalance<br />
2005/11/3
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