Frequency f=100MHz, so the wavelength= 3*10[sup]8[/sup]/10[sup]8[/sup]=3M

I believe the distance D between your conducting wire grid is much small than the wavelength.

I will assume the wire can behavior like a conducting plate. So I think it can stop most of the electromangetic field if those wire are very good conductors.

However, if the distance D become larger , than I do not think there is a simple formula available.

Are you doing some real project or this is just some test problem?

What is the source for your 100MHz vertically polarized electromagnetic wave?

What is the spatial distribution of the EM wave?

Dear Fu ,

What I want is to shield a large window from incident FM radiation. So ,I would like to select ,from the market , a suitable wire - grid . Of course the dimensions d and D will be much smaller compared to wave - length . I would like however ,to have a mathematical formula on the attenuation that will be achieved (in dB) to chose the right grid.

The EM-wave spatial distribution can be assumed uniform .

Are there any lecture notes related to the subject ?? I would be interested .

Best Regards

Elias

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