Title :
A compact metamaterial-inspired mmW CPW-fed antenna
Author :
Zhang, Hualiang ; Ziolkowski, Richard W. ; Xin, Hao
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ
Abstract :
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.
Keywords :
antenna feeds; metamaterials; millimetre wave antennas; Wheeler-cap method; compact metamaterial; full-wave electromagnetic simulations; high radiation efficiency; impedance matching; metamaterial-inspired parallel strips; millimeter wave applications; mmW CPW-fed antenna; Coplanar waveguides; Dielectric substrates; Electromagnetic radiation; Frequency; Impedance matching; Magnetic materials; Metamaterials; Millimeter wave technology; Parasitic capacitance; Physics;
Conference_Titel :
Antenna Technology, 2009. iWAT 2009. IEEE International Workshop on
Conference_Location :
Santa Monica, CA
Print_ISBN :
978-1-4244-4395-6
Electronic_ISBN :
978-1-4244-4396-3
DOI :
10.1109/IWAT.2009.4906890
