The design of small radial line slot array (RLSA) antennas requires more than simply
decreasing the antenna radius, which leads to the problem of high reflection. To overcome
this inconvenience, we introduce a technique for constructing small RLSA antennas with low
reflection by cutting full-sized ones. We designed 42 ordinary full-size RLSA models with a
radius of 75 mm and then cut them into 42 half RLSAs and 42 quarter RLSAs. The areas of
the half RLSAs and the quarter RLSAs are equal to those of full-sized RLSAs with radii of 53 …

The desi of small Radial Line Slot Array (RLSA) antennas requires more than simply
decreasing the antenna radius. This is because of the problem of high reflection. To
overcome this problem, we introduce a cutting technique for constructing small RLSA
antennas with low reflection. Rather than decreasing the radius as usual, the cutting
technique generates small RLSAs by cutting full-sized RLSAs. We designed 42 ordinary full-
sized RLSA models with a radius of 75 mm and then cut them into 42 half RLSAs and 42 …