TY - JOUR
T1 - Asymmetric Coplanar Waveguide (ACPW) Zeroth-Order Resonant (ZOR) antenna with high efficiency and bandwidth enhancement
AU - Chen, Po Wei
AU - Chen, Fu-Chiarng
PY - 2012/1/1
Y1 - 2012/1/1
N2 - 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.
AB - 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.
KW - Composite right/left-handed transmission line (CRLH-TL)
KW - Coplanar waveguide (CPW)
KW - Zeroth-order resonant (ZOR) antenna
UR - http://www.scopus.com/inward/record.url?scp=84875013788&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2012.2198191
DO - 10.1109/LAWP.2012.2198191
M3 - Article
AN - SCOPUS:84875013788
VL - 11
SP - 527
EP - 530
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
SN - 1536-1225
ER -