Ultrawide Band Antenna and Filter Design
Ultrawide Band Antenna and Filter Design
Ultrawide Band Antenna and Filter Design
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UWB-Balun<br />
55<br />
Shapes & dimensions<br />
2.0 x 1.25x 0.9mm<br />
Electric characteristicss<br />
Loss<br />
0<br />
-5<br />
-10<br />
-15<br />
-20<br />
-25<br />
-30<br />
Freqency Response<br />
Features<br />
� Lower phase error <strong>and</strong> lower amplitude error<br />
� Lower insertion loss<br />
�Smaller size & Lower cost<br />
� 50:100Ω-impedance<br />
Return Loss<br />
Insertion Loss<br />
3.0 3.5 4.0 4.5 5.0<br />
Frequency<br />
Balun is essential for unbalance (unbalance, single-end) -<br />
balance (balance, differential) signal conversion.<br />
AmplitudeImbalance(dB)<br />
2.5<br />
2.0<br />
1.5<br />
1.0<br />
0.5<br />
0.0<br />
-0.5<br />
-1.0<br />
-1.5<br />
-2.0<br />
-2.5<br />
Freqency Response<br />
Amplitude Imbalance<br />
Phase Imbalance<br />
3.0 3.5 4.0 4.5 5.0<br />
Frequency (GHz)<br />
10<br />
8<br />
6<br />
4<br />
2<br />
0<br />
-2<br />
-4<br />
-6<br />
-8<br />
-10<br />
Phase Imbalance (deg)<br />
2005/11/3
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