dual-band gps lna design - how to combine L1 and L2 signals?

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ryan.yao

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dual-band gps lna design

hi dude, I am fresh doing RF design.

now i am doing a dual-band gps design. i met a trouble. how to combine L1 and L2 signals to one line?

diplexer? or bandpass filter. I saw one guy only use S.I.R to combine these two signals.
 

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