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RF Effects of Solder Mask - RF Cafe Forums

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


ffoss
Post subject: RF effects of Solder Mask Posted: Thu Feb 08, 2007 3:18 pm

Lieutenant

Joined: Thu Feb 08, 2007 3:13 pm
Posts: 2
Location: Englewood, CO.
What effect does solder mask have at 2.4GHz? (It's on a 1W PA)

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ffoss


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IR
Post subject: Posted: Thu Feb 08, 2007 4:06 pm

Site Admin


Joined: Mon Jun 27, 2005 2:02 pm
Posts: 373
Location: Germany
Solder mask over a transmission line will increase the insertion loss.
At 2.4GHz the degradation would be still small. As higher the frequency is as worse the impact of the solder mask will be.

At 2.4GHz no need to worry too much!!


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ffoss
Post subject: RF effects of solder maskPosted: Fri Feb 09, 2007 1:37 pm

Lieutenant

Joined: Thu Feb 08, 2007 3:13 pm
Posts: 2
Location: Englewood, CO.
Thank you for the reply. Do you expect any problems with Amplifier (1W) feedback degrading the signal? Input level +5dbm, 25db gain.

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IR
Post subject: Posted: Fri Feb 09, 2007 3:36 pm

Site Admin


Joined: Mon Jun 27, 2005 2:02 pm
Posts: 373
Location: Germany
I don't expect that you will have any problem. In general, solder mask effects are due on the frequency of the signal and not due to the power level. If your circuit would work in 5GHz then you would definitely have problems.







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