کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10625715 989632 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A hybrid dielectric resonator antenna based upon novel complex perovskite microwave ceramic
ترجمه فارسی عنوان
یک آنتن رزونانس دی الکتریک ترکیبی بر اساس سرامیک سرامیکی مایکروویو پرووکسکی جدید
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
The microwave dielectric properties of Nd(Mg0.5−xCaxSn0.5)O3 ceramics were examined to evaluate their exploitation in mobile communication. The X-ray diffraction patterns of Nd(Mg0.43Ca0.07Sn0.5)O3 ceramics revealed no significant variation of phase with sintering temperatures. Nd(Mg0.43Ca0.07Sn0.5)O3 ceramics that were sintered at 1550 °C for 4 h had the following properties: a density of 6.88 g/cm3, a dielectric constant (εr) of 19.51, a quality factor (Qf) of 100,400 GHz, and a temperature coefficient of resonant frequency (τf) 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 39, Issue 7, September 2013, Pages 8043-8048
نویسندگان
, , ,