From my previous posts Insight into cavity resonators, Visual understanding of EM fields within a rectangular metal container I have slowly gained a better insight into cavity resonators and thereof. I have the following scenario setup inside a rectangular metal container. The container size is 12.03m by 2.39m by 1.84m (lxbxh). Additionally, inside the container I have placed 4 antennas equally spaced, this is shown using the green squares (ignore the red dots/balls). The frequency of these antennas is 915MHz.
In terms of the multimode aspect, I am not too sure if this is necessary to take into account since my aim is to not make a resonator but just to see the interference within the container created when the antenna radiates its energy in the container.
In the event I do need to take into account the multimode aspect, I also know that an example of a multimode cavity is a microwave oven. How can I then test the EM field inside the container for the EM fields but not for the application of heating the contents?
I want to then use this information to see if when I place RFID tags on pallets of goods inside the container, which regions will result in the RFID tags receiving no power due to destructive interference and which regions will result in there been power. I know when the goods are loaded on to the contiainer the EM field will change but that is a topic for another day, For now I am assuming the contianer been empty and place this tags in it. So first I need "to see the interference created within the container when the antenna radiates its energy in the container"