A Broadband Multimode-Composite Complementary Source Antenna

A millimeter-wave wideband multimode composite complementary source antenna is proposed. Three resonant modes, namely an electric dipole, a magnetic dipole, and a dielectric resonator (DR) modes, are excited effectively. Compared with the traditional dual-mode composite magneto-electric dipole, the introduction of the DR mode improves the operating bandwidth. The simulated results confirm a bandwidth of 60.5% (24 - 44.8 GHz) along with stable radiation performance. The antenna geometry fully integrated in substrates is easy to realize and link with circuits. Benefitted from the simple geometry and wideband performance, the antenna proposed in this paper would be useful for millimeter-wave systems.