S.K. Chaudhury

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Radiation from a small device is dominated by the chassis, not only by the antenna structure attached to it. We propose a MIMO antenna system considering the mobile phone chassis as the main radiator. Since the chassis supports multiple orthogonal mode currents at a certain frequency, we couple to four of these modes using four miniature capacitive couplers(More)
A novel concept is introduced to realize a multiple antenna system on a small mobile device by coupling to its characteristic modes. According to the theory, the current density on the chassis of a mobile device is the superposition of characteristic mode current densities which have unique resonance frequencies. There are some interesting frequency ranges(More)
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