A hybrid dielectric resonator antenna based upon novel complex perovskite microwave ceramic

作者：Chen Yih Chien^*; Chang Kuang Chiung; Tsai Da Yeh

来源：Ceramics International, 2013, 39(7): 8043-8048.

DOI：10.1016/j.ceramint.2013.03.074

• Nd(Mg0.43Ca0.07Sn0.5)O-3
• Dielectric constant
• Quality factor
• Temperature coefficient of resonant frequency
• Dielectric resonator antenna

The microwave dielectric properties of Nd(Mg0.43Ca0.07Sn0.5)O-3 ceramics were examined to evaluate their exploitation in mobile communication. The X-ray diffraction patterns of Nd(Mg0.43Ca0.07Sn0.5)O-3 ceramics revealed no significant variation of phase with sintering temperatures. Nd(Mg0.43Ca0.07Sn0.5)O-3 ceramics that were sintered at 1550 C for 4 h had the following properties: a density of 6.88 g/cm(3), a dielectric constant (Sr) of 19.51, a quality factor (0) of 100,400 GHz, and a temperature coefficient of resonant frequency (r1) of 57.8 ppm/ C. The proposed hybrid dielectric resonator covered the industrial, scientific, medical (ISM), high-performance radio local area network (HIPERLAN), and unlicensed national information infrastructure (UNII) bands. A 12.5% bandwidth (return loss <10 dB) of 2.43 GHz, and a 14.2% bandwidth (return loss <10 dB) of 5.62 GHz were successfully achieved.

• 出版日期2013-9