| Summary: | 碩士 === 景文科技大學 === 電腦與通訊研究所 === 99 === In this thesis, we will discuss the antenna of the surrounding environment to achieve the multi-antenna coexistence and reduce the coupling interaction between the interference, through improving multi-antenna isolation to achieve isolation of the standard requirement and meet a variety of wireless communication system of different specifications. It is well known that hand-held wireless communications products must have light, thin, short and small features, so multi-antenna isolation is bound to be a baptism of fire. As a result, without changing the shape of the antenna, and it's only 0.04λ between the two antennas spacing,the use of non-ideal ground plane changes to improve the antenna of the isolation effect.
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