An on‐board small‐size printed two‐strip monopole antenna integrated with a universal series bus (USB) connector and generating two wide operating bands to cover penta‐band wireless wide area network operation in the 824–960/1710–2170 MHz bands is presented.The two strips of the antenna are respectively printed on two small no‐ground portions of 15 × 25 and 15 × 15 mm2 (total size 600 mm2). In‐between the two printed strips, there is a protruded ground of 15 × 10 mm2 to accommodate a USB connector, which serves as the data port of the mobile phone. Also, easy control of the antenna's two wide lower and upper bands can be achieved by respectively adjusting the longer and shorter strips of the printed monopole antenna. That is, the antenna is easy to fabricate and also easy to fine‐tune in practical applications. Details of the proposed antenna are presented and discussed. The radiation characteristics of the antenna, including the specific absorption rate results with the presence of the user's head and hand, are also studied.
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Wong et al. (2010) studied this question.
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