Title :
Mode-Based Estimation of 3 dB Bandwidth for Near-Field Communication Systems
Author :
Tak, Youndo ; Park, Jongmin ; Nam, Sangwook
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., Seoul, South Korea
Abstract :
A new method for estimating the 3 dB bandwidth of near-field communication (NFC) systems using identical electrically small antennas is proposed. The method is based on equivalent circuit representation using the addition theorem, an approach used in the analysis of coupled antennas, and the correction factor derived from antenna impedance characteristics. In addition, variation in the 3 dB bandwidth with respect to the relative position and orientation of the NFC system is investigated using the proposed method.
Keywords :
antenna theory; coupled circuits; NFC system; antenna impedance characteristic; coupled antenna; equivalent circuit representation; mode based estimation; near-field communication system; Antenna theory; Bandwidth; Couplings; Equivalent circuits; Impedance; Addition theorem; antenna equivalent circuit; bandwidth estimation; capacity; electrically small antenna; near-field communication (NFC); near-field coupling;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2011.2158960
