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A dual‐wideband planar dipole antenna for WLAN and WiMAX applications is proposed. The antenna is mainly composed of a U‐shaped dipole which is fed by a parallel double transmission line. The U‐shaped dipole is employed to generate a wide lower band and a narrow higher band. To expand the higher band, two pairs of strips are used to symmetrically embed in the U‐shaped arms of the dipole. The tested...