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首页> 外文会议>2018 IEEE Indian Conference on Antennas and Propogation >Design and Development of Wideband Dielectric Resonator Antenna for S and C Band Applications
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Design and Development of Wideband Dielectric Resonator Antenna for S and C Band Applications

机译：用于S和C波段应用的宽带介质谐振天线的设计与开发

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摘要

The design and development technique for bandwidth enhancement using star shape dielectric resonator antenna (SDRA) with coaxial feed is presented in this paper for S and C band applications. Presented antenna is implemented by modifying the dimensions of cylindrical dielectric resonator antenna (CDRA). Which is inserted by vacuum slot has minimum permittivity that reduces the effective permittivity of DRA, because effective permittivity is inversely proportional to resonant frequency, so that increases the resonant frequency of DRA. The substrate and DR material used for investigation are FR4 and Al2O3, which has a dielectric constant (εr) of 4.4 and 9.8 respectively. A centre feed coaxial line is used for feeding purpose to SDRA. Parametric analysis on the antenna is performed using Ansoft HFSS solver by varying different parameter and shape of DR and length of the feed line. Wide fractional bandwidth of 51.20% is achieved by altering the permittivity of SDRA. The simulated graphs shows that the proposed antenna geometry offers a wide band, varying from 3.516 to 5.936 GHz. The proposed antenna is linearly polarized and has many applications in S and C band of wireless communication. The peak and average gain of proposed DRA is 6.42 dB and 4.50 dB simultaneously and bandwidth offered is 2.42GHz.
机译：本文针对S和C频段应用，提出了使用带有同轴馈源的星形介电共振器天线（SDRA）来提高带宽的设计和开发技术。通过修改圆柱形介质谐振器天线（CDRA）的尺寸来实现本发明的天线。通过真空槽插入的介电层具有最小的介电常数，这降低了DRA的有效介电常数，因为有效介电常数与谐振频率成反比，从而增加了DRA的谐振频率。用于研究的基材和DR材料是FR4和Al \ n 2 \ nO \ n 3\n，它具有介电常数（ε\ n r \ n）分别为4.4和9.8。中心馈送同轴线用于向SDRA馈送。使用Ansoft HFSS求解器，通过改变DR的不同参数和形状以及馈线的长度来对天线进行参数分析。通过改变SDRA的介电常数，可以实现51.20％的宽分数带宽。仿真图表明，建议的天线几何形状提供了一个宽频带，从3.516到5.936 GHz不等。所提出的天线是线性极化的，并且在无线通信的S和C波段中具有许多应用。拟议DRA的峰值和平均增益同时为6.42 dB和4.50 dB，提供的带宽为2.42GHz。

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