Abstract
AbstractA dual‐wideband magnetoelectric dipole antenna is proposed. The magnetoelectric dipole is fed by a hook‐shaped metal sheet. To increase the gain at the upper band, the radiation arm of the electric dipole is designed in stepped shape. To widen the impedance bandwidth of the lower band, stepped‐shaped metal walls are employed and placed along the edges of the ground plane. To further improve and stabilize the higher band gain, four parasitic umbrella‐shaped metals are utilized. By using this novel scheme, a magnetoelectric dipole antenna with dual‐wideband operation is designed. It introduces two wide bandwidths of 35.3% (0.698–1 GHz) for the lower band and 63% (1.52–2.9 GHz) for the upper band. The lower‐band gain is stabilized within 7.3 ± 0.6 dBi, while the upper‐band gain is stabilized within 9.2 ± 0.8 dBi. The antenna dimension is only 0.41λL × 0.41λL × 0.1λL (λL denotes the wavelength at 0.698 GHz in vacuum).
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