Class Notes_Lect10

Class Notes_Lect10 - . \y.{\g l v. isiflmi [IP93 Duplexers...

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Unformatted text preview: . \y.{\g l v. isiflmi [IP93 Duplexers PSD - Use a duplexer to isolate between transmitter and receiver (~ 50dB of isolation) - TX Noise: - Floor noise of TX band degrades the sensitivity of the RX - Duplexer reduces TX noise desensitization to RX - TX Signal: I Attenuate PA output signal to guard against the RX LNA from edging near compression - Duplexer Issues: - High insertion loss (IL ~ 2-3dB) - 30-50% of PA power is wasted - Degrades LNA NF - Not enough isolation Spring, 09 a» 1. “gt/“1.. M2. «$1.er = —\G 0 JG 't ...
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Class Notes_Lect10 - . \y.{\g l v. isiflmi [IP93 Duplexers...

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