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Is DC blocking cap needed after pi attenuator?

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sweethomela8

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I currently have a LNA (input as DC blocking cap, 1000pF)...and on the output i have another DC blocking cap (1000pF) and that enters a pi attenuator set for 10dB (75 ohms, series, 100 ohms parallel), that ends up going into a IQ demodulator (50 Ohm impedance)...

is another 1000pF DC blocking cap required after the pi attenuator?
Can any DC be injected into the signal from the pi attenuator?
 

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