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Novel Broadband Planar Reflectarray With Parasitic Dipoles for Wireless Communication Applications

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7 Author(s)
Long Li ; Sch. of Electron. Eng., Xidian Univ., Xi'an, China ; Qiang Chen ; Qiaowei Yuan ; Kunio Sawaya
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A novel broadband planar reflectarray with parasitic dipoles is presented for wireless communication applications. A unit cell of the microstrip reflectarray consists of a printed main dipole with a pair of parasitic dipoles. The introduction of parasitic dipoles can effectively extend the reflection phase range beyond 360??, which overcomes the problem of an inadequate phase range when using thicker substrates for a wider operational bandwidth. The parasitic dipole reflectarrray (PDR) is applied to a wideband CDMA (WCDMA) system to eliminate blind spots in communication between the base station and mobile users. A practical link budget analysis demonstrates the effectiveness of the proposed planar reflectarray.

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IEEE Antennas and Wireless Propagation Letters  (Volume:8 )