User's Manual

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MSAN
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008
K-Band FMCW Transceiver DF Modules
Application Note
V1.0
1
ST Electronic
s (Satcom & Sensor Systems) Pte Ltd
1 Ang Mo Kio Electronics Park Road, #06-02, ST Engineering Hub, Singapore 567710
Tel: [phone] Fax: [phone] Email: [e-mail]
Website: www.agilsense.com ( Regn. No.: 199103901W )
7. IF amplifier gain and frequency response
The DF9 series transceiver module comes with a built-in two-stage IF amplifier. The amplifier is
designed to provide low noise and hence, higher sensitivity. Besides, this amplifier acts as a buffer so
that the performance of the DF module is not affected by the loading at the IF output. A loading of at
least 1 k is recommended at the IF output.
Figure 7: Frequency response of IF amplifier of DF990