How to avoid RF signal loss in a conductive cage acting like a Faraday shield?

Question

I have a standard chip antenna mounted on a large ground PCB plane.

The product is unfortunately encapsulated inside a relatively open (carbon-fiber) conductive cage.

Unfortunately, I see an obvious loss in the RF signal due to the Faraday cage principle.

How can I avoid such loss?

It would be difficult to put the antenna outside the cage. But would it make sense to have a wire or some conductive tape from the ground antenna plane to the cage itself or to "outside"?

Convert the antenna to a patch type and mount it externally. — Andy aka, Jul 18 '20 at 08:15
Also, carbon-fiber sounds like a pretty ineffective faraday cage, and chances are it doesn't shield *that* much — Marcus Müller, Jul 18 '20 at 09:11
How much loss do you see? Can you show us the conductive cage? — Stefan Wyss, Jul 18 '20 at 16:26

analogsystemsrf · Answer 1 · 2020-07-18T22:55:22.403

0

Place the antenna immediately next to the Carbon Fiber (not even an air gap), and your loss will greatly reduce.

This answer may guide you.

Why are many IR receivers in metal cages?

edited Jul 18 '20 at 22:55

answered Jul 18 '20 at 18:18

analogsystemsrf

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Thank you for the suggestion. Can you please describe the rationales behind your answer? – gregoiregentil Jul 18 '20 at 20:04

How to avoid RF signal loss in a conductive cage acting like a Faraday shield?

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