AN290 - Low Noise Amplifier with BFR840L3RHESD for 5 - Infineon
AN290 - Low Noise Amplifier with BFR840L3RHESD for 5 - Infineon
AN290 - Low Noise Amplifier with BFR840L3RHESD for 5 - Infineon
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-5<br />
-10<br />
-15<br />
-20<br />
<strong>BFR840L3RHESD</strong><br />
<strong>Low</strong> <strong>Noise</strong> <strong>Amplifier</strong> <strong>for</strong> 5 to 6 GHz WLAN <strong>with</strong> 2.4 GHz Rejection<br />
Measured Graphs<br />
Output Matching<br />
-25<br />
4000 4500 5000 5500<br />
Frequency (MHz)<br />
6000 6500 7000<br />
Figure 9 Output Matching of the 5-6 GHz WLAN LNA <strong>with</strong> <strong>BFR840L3RHESD</strong><br />
0<br />
0.2<br />
-0.2<br />
0.4<br />
0.2<br />
-0.4<br />
0.6<br />
-0.6<br />
5100 MHz<br />
-15 dB<br />
Output Matching Smith<br />
5900 MHz<br />
r 0.86982<br />
x -0.106505<br />
0.4<br />
5100 MHz<br />
r 0.765246<br />
x -0.211879<br />
0.6<br />
0.8<br />
-0.8<br />
5900 MHz<br />
-21 dB<br />
Figure 10 Output Matching of the 5-6 GHz WLAN LNA <strong>with</strong> <strong>BFR840L3RHESD</strong> (Smith Chart)<br />
0.8<br />
1.0<br />
-1.0<br />
1.0<br />
Application Note <strong>AN290</strong>, Rev. 1.0 14 / 21<br />
2012-06-06<br />
2.0<br />
3.0<br />
2.0<br />
-2.0<br />
4.0<br />
5.0<br />
-3.0<br />
Swp Max<br />
7000MHz<br />
3.0<br />
10.0<br />
4.0<br />
5.0<br />
10.0<br />
-10.0<br />
-5.0<br />
-4.0<br />
Swp Min<br />
3500MHz
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