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What is the BW(30dB)-Outband Bandwidth? - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


jimmy
Post subject: What is the BW(30dB)-outband bandwidth? Posted: Wed Jun 08, 2005 2:41 pm
Dear all,

I am designing a BPF for the 3G transceiver.

For the transmitter, the BPF is operating from 1920MHz to 1980MHz and it has 30dB outband rejection and 2.5dB in-band insertion loss.

The BW(3dB)- passband bandwidth is 60MHz and
What is the BW(30dB)-outband bandwidth???

Pls help me if anyone know this, thank you!!


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Filip
Post subject: Posted: Tue Aug 09, 2005 9:08 am
30dB attenuation for the closest next system (it means 1990MHz in some countries unfortunatelly) pls check FCC, ETSI and Japanese frequency allocation



Posted  11/12/2012

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