DRA（dielectric&resonator&antenna）介质谐振器天线
is placed in an open
environment, power is lost in the radiated fields. This fact makes
dielectric resonators useful as antenna elements. Dielectric
resonator antennas (DRA) offer following attractive
The dimension of a DRA is of the order of
, where λ0; is
the free-space wavelength and εr is the
of the resonator material. Thus, by choosing a high value
of εr ( ), the size of
the DRA can be significantly reduced.
There is no inherent conductor loss in dielectric
resonators. This leads to high radiation efficiency of the antenna.
This feature is especially attractive for millimeter (mm)-wave
antennas, where the loss in metal fabricated antennas can be
DRAs offer simple coupling schemes to nearly all
transmission lines used at microwave and mm-wave frequencies. This
makes them suitable for integration into different planar
technologies. The coupling between a DRA and the planar
transmission line can be easily controlled by varying the position
of the DRA with respect to the line. The performance of DRA can
therefore be easily optimized experimentally.
The operating bandwidth of a DRA can be varied over a wide
range by suitably choosing resonator parameters. For example, the
bandwidth of the lower order modes of a DRA can be easily varied
from a fraction of a percent to about 10% or more by the suitable
choice of the dielectric constant of the resonator
Each mode of a DRA has a unique internal and associated
external field distribution. Therefore, different radiation
characteristics can be obtained by exciting different modes of a
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以上网友发言只代表其个人观点，不代表新浪网的观点或立场。采用提出的方法计算了介质谐振器和圆锥喇叭天线。
Dielectric resonators and a conical horn antenna were calculated by the presented methods.
在第二个多功能部分，提出了使用介质谐振器天线作为振荡器负载的思想。
In the second multifunction part, the idea of using the DRA as an oscillator load is proposed.
文中还用这种方法计算了位于电磁带隙结构上的矩形介质谐振器天线的方向图。
Finally, a rectangular dielectric resonator antenna located at the electromagnetic band gap structure is studied by using proposed algorithm.
介质产品包括介质滤波器，介质双工器，介质天线，介质谐振器。
Our product offering dielectric products includes dielectric filters, dielectric duplexers, dielectric antenna, dielectric resonator.
介质产品包括介质滤波器，介质双工器，介质天线，介质谐振器。
Our product offering dielectric products includes dielectric filters, dielectric duplexers, dielectric antenna, dielectric resonator.
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感谢您的反馈，我们会尽快进行适当修改！介质陶瓷谐振器天线的研究进展_曹良足_百度文库
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你可能喜欢一种新型圆柱形介质谐振器微带天线仿真分析_论文_百度文库
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一种新型圆柱形介质谐振器微带天线仿真分析
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&&在叙述圆柱形介质谐振器及其频率特性的基础上,通过基于有限元法的高频结构仿真软件AnsoftHFSS12仿真,获得圆柱形介质谐振器半径与高度变化对天线工作带宽和增益的影响,得到驻波关系曲线图。通过分析仿真结果,得出在Rc=2.9mm,Hc=4mm时天线性能最佳,优化的圆柱形介质谐振器的参数有利于提高天线的性能。
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