Yang, S.-H.S.-H.YangJEAN-FU KIANG2020-06-112020-06-112013https://www.scopus.com/inward/record.uri?eid=2-s2.0-84890877737&doi=10.2528%2fPIERB13072406&partnerID=40&md5=e3c1b867b5c8148b530b0f04e0ec98e3Stacked concentric circular antenna arrays (SCCAA's) supporting both the scanning mode and the tracking mode are optimized in both the azimuth and elevation planes. The gbest-guided arti-cial bee colony algorithm (GABCA) is adopted to optimize the dual-mode -eld patterns of thinned SCCAA's. Performance comparison of the GABCA with conventional ABCA and particle swarm optimization (PSO) algorithms is also presented.Directional patterns (antenna); Optimization; Particle swarm optimization (PSO); Scanning antennas; Bee colony algorithms; Concentric circular antenna arrays; Dual modes; Particle swarm optimization algorithm; Performance comparison; Scanning mode; Tracking mode; Two-dimensional patterns; Antenna arraysjournal article10.2528/PIERB130724062-s2.0-84890877737