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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NF(dB)<br />
1.4<br />
1.3<br />
1.2<br />
1.1<br />
1<br />
0.9<br />
0.8<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 />
<strong>Noise</strong> Figure<br />
0.7<br />
5100 5300 5500<br />
Frequency (MHz)<br />
5700 5900<br />
Figure 5 <strong>Noise</strong> Figure of <strong>BFR840L3RHESD</strong> LNA <strong>for</strong> 5100 - 5900 MHz<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
5100 MHz<br />
1.05 dB<br />
5100 MHz<br />
22.9 dB<br />
5500 MHz<br />
1.03 dB<br />
Reverse Isolation<br />
5900 MHz<br />
21.8 dB<br />
5800 MHz<br />
1.08 dB<br />
Figure 6 Reverse Isolation of the 5-6 GHz WLAN LNA <strong>with</strong> <strong>BFR840L3RHESD</strong><br />
5900 MHz<br />
1.05 dB<br />
0<br />
4000 4500 5000 5500<br />
Frequency (MHz)<br />
6000 6500 7000<br />
Application Note <strong>AN290</strong>, Rev. 1.0 12 / 21<br />
2012-06-06
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