6.1.1 Concentrated slot area

The use of extra high beamsquint results in concentrated slots in a certain area of radiating elements, and leaving other areas vacant from slots, as shown in Figure 12a.

Our hypothesis is that since the vacant area is not useful, then it can be cut off, thus resulting in a smaller antenna, as shown in Figure 12b. We have studied that definitely there will be an effect of the cut, which is a leakage power along the cutting line, shown in Figure 12c. This leakage power reduces the antenna gain. However, the antenna gain will not be affected significantly since the power density within the cut antenna will increase, thus also will increase the gain, then countering the decrease gain due to the leakage power.
