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A compact metamaterial-inspired mmW CPW-fed antenna

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3 Author(s)
Hualiang Zhang ; Department of Electrical and Computer Engineering, University of Arizona, 1230 E. Speedway Blvd., Tucson, 85721, USA ; Richard W. Ziolkowski ; Hao Xin

A uni-planar, easy for integration and compact antenna for millimeter wave applications is presented in this paper. The concept of metamaterials is employed to realize the antenna miniaturization. For the designed antenna, a small rectangular semi-loop performs as the radiating element. Metamaterial-inspired parallel strips are introduced that are coupled to the original antenna. It is found that, with this modification, the total size of the antenna is reduced and the impedance matching of the whole antenna system is improved. To further show the impact of ground plane size, the proposed antenna is simulated with different ground plane sizes. In addition, by using the Wheeler-cap method and full-wave electromagnetic simulations, it is found the proposed antenna exhibits high radiation efficiency at the working frequencies.

Published in:

Antenna Technology, 2009. iWAT 2009. IEEE International Workshop on

Date of Conference:

2-4 March 2009