摘要: Wideband stair-shaped dielectric resonator antenna (DRAs) are designed. Wide bandwidths achieved with one-step or two-steps stair geometries. Cricular and square cross-sections discussed two different excitation methods: coaxial feed aperture coupled. The DRAs designed in the X-band. An impedance bandwidth (S 11 <-10 dB) of 54.3% is obtained DRA. antennas have broadside radiation patterns all cases across matching band. In addition, embedding base into another material reduces size Simulation results compared measurements reasonable agreement
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