Title :
Develop dual-band CPW asymmetric monopole antennas on the Aluminum Oxide substrates
Author :
Cheng, Chien-Min ; Yang, Hung-Chi ; Yang, Cheng-Fu ; Chen, Kai-Huang ; Zeng, Shih-Sian
Author_Institution :
Dept. of Electron. Eng., Southern Taiwan Univ., Tainan, Taiwan
Abstract :
A novel asymmetric unilateral monopole CPW dual-band antenna is screen-printed on the high dielectric Aluminum Oxide ceramic substrate by the screen-printing technique in this letter. Owing to the high dielectric constant ceramic substrate and asymmetric unilateral structure are used, the size of the antenna can be minimized to only 20 × 10.8 mm2. The proposed antennas reveal near omni-directional radiation patterns, and the optimum measured bandwidth are 11% (at 2.455 GHz) and 11.6% (at 5.425 GHz), the optimum measured return loss are -21.4 dB (at 2.455 GHz) and -19.1 dB (at 5.425 GHz), respectively.
Keywords :
aluminium compounds; antenna radiation patterns; coplanar waveguides; monopole antennas; multifrequency antennas; permittivity; Al2O3; asymmetric unilateral structure; dielectric aluminum oxide ceramic substrate; dual-band CPW asymmetric monopole antenna; near omnidirectional radiation pattern; screen-printing technique; Aluminum oxide; Antenna measurements; Antenna radiation patterns; Ceramics; Coplanar waveguides; Dielectric measurements; Dielectric substrates; Dual band; High-K gate dielectrics; Loss measurement; CPW; Ceramics; dual-band; monopole; omni-directional;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5385280
