The Technique, to design multibeam Radial Line Slot Array (RLSA) antennas optimally, was proposed in this study, using high beam squint values to produce more slots. This is necessary to maintain gain, which dropped due to the beam splitting. A gap was also incorporated between the slots group to overcome a coupling between adjacent beams which can lessen gains. RLSA models for 42 dual and 42 triple-beams were simulated after which a prototype for each was measured to verify the simulation. The results showed the possibility of obtaining multibeam antennas with similar symmetrical beams in terms of beamwidth, gain, and direction. The gains obtained were 13.5 dBi for the dual-beam and 10.5 dBi for the triple-beam, indicating a difference of 3 and 4.77 dB, respectively, with the single-beam antennas, thereby, making them suitable for the theory of beam splitting. The antennas also have sufficient bandwidth and a good reflection coefficient.

本研究提出了优化设计多波束径向线槽阵列 (RLSA) 天线的技术，该技术使用高波束斜视值产生更多槽。这是保持增益所必需的，增益由于分束而下降。在槽组之间还加入了一个间隙，以克服相邻梁之间的耦合，这会降低增益。模拟了 42 个双光束和 42 个三光束的 RLSA 模型，然后测量了每个模型的原型以验证模拟。结果表明，获得在波束宽度、增益和方向方面具有相似对称波束的多波束天线的可能性。双波束的增益为 13.5 dBi，三波束的增益为 10.5 dBi，表明与单波束天线的差异分别为 3 和 4.77 dB，因此，使其适用于分束理论。天线还具有足够的带宽和良好的反射系数。