AN369: Si4010 Antenna Interface and Matching Network ... - wless.ru
AN369: Si4010 Antenna Interface and Matching Network ... - wless.ru
AN369: Si4010 Antenna Interface and Matching Network ... - wless.ru
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<strong>AN369</strong>Figure 17. Top Layout of the SI Testcard with SOIC Packaged <strong>Si4010</strong>The measured spect<strong>ru</strong>m by a 50 spect<strong>ru</strong>m analyzer up to 3.6 GHz is shown in Figure 18. The realized matchinghas ETSI compliance in this conductive measurement. Assuming 0 dB gain antenna the compliance reserved inradiated measurements as well.The fundamental power is ~+8.4 dBm. Assuming .08 dB loss for the balun <strong>and</strong> 0.15 dB loss for the filter, the powerdelivered to the differential port of the balun is ~+9.4 dBm. That is, the power goes into a properly designeddifferential antenna input without external matching elements.Figure 18. Measured Spect<strong>ru</strong>m Up to 3.6 GHz18 Rev. 0.1
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