Title :
Dielectric properties of CuO-doped Nd(Mg0.4Zn0.1Sn0.5)O3 at microwave frequency and application in superstrate loaded monopole antenna for WLAN and WiMAX
Author :
Kuei-Chien Chen ; Chen, Kuei-Chien ; Wu, Chung-Yen
Author_Institution :
Dept. of Electron. Eng., LHU, Gueishan, Taiwan
Abstract :
CuO-doped Nd(Mg0.4Zn0.1Sn0.5)O3 ceramics prepared by the conventional solid-state method were investigated for application in monopole antenna loaded with high permittivity superstrate. A dielectric constant of 19.5, a quality factor (Q×f) of 18,600 GHz, and a temperature coefficient of resonant frequency (τf) of -59.0 ppm/°C was obtained when 0.1 wt% CuO-doped Nd(Mg0.4Zn0.1Sn0.5)O3 ceramics sintered at 1450°C for 4h. A bandwidth (return loss <; 10 dB) of 18.6 % and a center frequency of 2.42 GHz was achieved for the proposed monopole antenna.
Keywords :
Q-factor; UHF antennas; WiMax; ceramics; copper compounds; magnesium compounds; microwave antennas; monopole antennas; neodymium compounds; permittivity; tin compounds; wireless LAN; Nd(Mg0.4Zn0.1Sn0.5)O3:CuO; WLAN; WiMAX; dielectric properties; frequency 18600 GHz; frequency 2.42 GHz; high permittivity superstrate; microwave frequency; quality factor; resonant frequency; solid-state method; superstrate loaded monopole antenna; temperature 1450 degC; temperature coefficient; time 4 h; Coplanar waveguides; Dielectrics; Facsimile; Feeds; Permittivity; Resonant frequency; Nd(Mg0.4Zn0.1Sn0.5)O3; dielectric constant; monopole antenna; quality factor; temperature coefficient of resonant frequency;
Conference_Titel :
Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-9792-8
DOI :
10.1109/CSQRWC.2011.6036981
