How to cope with different assembly gains?

Discussion and questions regarding the Radiated Emission and Conducted Emission modules of RadiMation.
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incognito
Posts: 235
Joined: 03 Feb 2012, 13:07

How to cope with different assembly gains?

Post by incognito »

Hello again Support,

We managed to get the RadiPower power meter to work now, to perform measurements according to ETSI EN 3003 28. However, we do have a question:

If the two measurement ports have two different antenna gain. E.g Port 1 = 2dBi & Port 2 = 3dBi. How can we input this in the calculation. The Assembly Gain (dBi) input in the software will apply the gain to both ports. Is this understanding correct?

Thanks!
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joro
Posts: 440
Joined: 24 Aug 2011, 09:55
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Re: How to cope with different assembly gains?

Post by joro »

Hi,

The current software implementation is indeed using the ‘Assembly Gain (dBi)’ to be applied on both ports. There is no possibility to specify different ‘Assembly Gain’ for different ports.

A solution could be to correct the powermeter that is connected to the port that has a higher ‘Assembly gain’.

Assuming: Port 1 = 2dBi & Port 2 = 3dBi.
Then the power sensor connected to Port 2, can be corrected with a 1 dB correction. If the ‘Assembly gain’ during the test is set to 2 dBi, the powersensor on Port 1 will use a 2 dBi ‘Assembly Gain’.
The powersensor on Port 2 will also use a 2 dBi ‘Assembly Gain’, however due to the specific 1 dB correction for that power sensor, the effective ‘Assembly Gain’ for the powersensor on Port 2 will be 3 dB.

I hope that this answers your question.
Otherwise, please let us know.
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