A combined‐type triple‐wideband tablet computer antenna covering the long term evolution (LTE) operation in the 698–960 MHz (low band), 1710–2690 MHz (middle band), and 3400–3800 MHz (high band) is presented. The antenna is formed by an inverted‐F antenna (IFA) covering the LTE low band and a coupled‐fed loop antenna covering the LTE middle and high bands. The IFA (low‐band antenna) and coupled‐fed loop antenna (middle/high‐band antenna) are easily combined into a compact structure to occupy a small ground clearance of 10 × 30 mm 2 and a thin thickness of 3 mm. Details of the antenna structure are described in this study. Working principle of the antenna to achieve the LTE triple‐wideband operation through combining the low‐band antenna and the middle/high‐band antenna is addressed. Experimental results of the fabricated antenna are also presented and discussed.
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Wong et al. (2015) studied this question.
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