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A compact dual-band CPW-fed triangle-shaped antenna is proposed for applications in 2.4/5GHz WLAN and RFID. The designed antenna, including ground plane, is only 28mm in height and 26mm in width. By introducing a ƒ-shaped slot and a T-shaped strip, the proposed antenna can generate two separate impedance bandwidths. Prototypes of the proposed antenna have been constructed and tested. The measured impedance bandwidths, ranging from 2.36GHz to 2.50GHz and from 5.01GHz to 6.33GHz separately, are obtained with return loss less than i10:00dB, which meet the required bandwidths speciflcation of WLAN and RFID. Good omni- directional radiation and appropriate gain characteristics in the desired frequency bands have been achieved.
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Teng et al. (2012) studied this question.
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