Title: Asymmetric Coplanar Waveguide (ACPW) Zeroth-Order Resonant (ZOR) Antenna With High Efficiency and Bandwidth Enhancement
Authors: Chen, Po-Wei
Chen, Fu-Chiarng
Department of Electrical and Computer Engineering
Keywords: Composite right/left-handed transmission line (CRLH-TL);coplanar waveguide (CPW);zeroth-order resonant (ZOR) antenna
Issue Date: 2012
Abstract: "A novel low-profile zeroth-order (ZOR) antenna is presented. The feature of ZOR based on periodic structures is employed to reduce the antenna size, while these antennas generally suffer from narrow bandwidth. A single-layer asymmetric coplanar waveguide (ACPW) structure is proposed to realize a bandwidth-extended ZOR antenna, where the antenna bandwidth is characterized by an equivalent circuit model. The ACPW-structure not only provides the design freedom, but also overcomes the design constraint of the traditional CPW. The ACPW ZOR antenna is verified by both full-wave simulations and experiments. As an advantage of the proposed method, the size of antenna is reduced, and the resonant frequency of zeroth-order mode is 1.94 GHz with radiation efficiency of 85%, measured 10-dB fractional bandwidth up to 10.3%, and omnidirectional peak gain of 2.3 dBi."
URI: http://hdl.handle.net/11536/16678
ISSN: 1536-1225
Volume: 11
End Page: 527
Appears in Collections:Articles

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