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首页> 外文期刊>Microwave and optical technology letters >SIMPLE NOTCHES DESIGN FOR ULTRA-WIDEBAND MONOPOLE ANTENNAS WITH COPLANAR-WAVEGUIDE-COUPLED-FED
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SIMPLE NOTCHES DESIGN FOR ULTRA-WIDEBAND MONOPOLE ANTENNAS WITH COPLANAR-WAVEGUIDE-COUPLED-FED

机译：带共面波导耦合馈电的超宽带单极天线的简单刻槽设计

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摘要

In this article, the design of a ultra-wideband (UWB) monopole antenna with coplanar-waveguide (CPW)-coupled-fed is presented. The antenna is composed of a trapezium patch with a CPW-fed printed on one side of the substrate and an elliptical radiator on the other side. By simply cutting slits on the radiation patch, a single, dual, and triple band notched characteristics can be achieved. Parametric studies on the antenna and slits are carried out by computer simulation. Results show that the notch frequencies can be set by using dimensions of the slits. The antennas are designed and optimized using computer simulation. For verification, the antennas with single and dual band-notched characteristics are fabricated and measured. The simulated and measured results on the return loss, radiation pattern, peak gain, and efficiency of the antenna are presented. Due to the small ground-plane size of the antenna, the feeding cable used in the measurement equipment significantly affects the measured results and leads to large discrepancies between the simulated and measured results at low frequencies. To study this, the simulation model of the feeding cable is also used in simulation and results show that the discrepancies are substantially reduced.
机译：在本文中，提出了具有共面波导（CPW）耦合馈电的超宽带（UWB）单极天线的设计。天线由梯形贴片组成，在基板的一侧印有CPW馈电，在另一侧印有椭圆形辐射器。通过简单地在辐射斑片上切开狭缝，就可以实现单，双和三频带缺口的特性。通过计算机仿真对天线和缝隙进行参数研究。结果表明，可以通过使用狭缝的尺寸来设置陷波频率。使用计算机仿真来设计和优化天线。为了验证，制造并测量了具有单频带和双频带陷波特性的天线。给出了回波损耗，辐射方向图，峰值增益和天线效率的仿真和测量结果。由于天线的接地平面尺寸较小，因此测量设备中使用的馈电电缆会显着影响测量结果，并导致低频下的仿真结果与测量结果之间存在较大差异。为了研究这一点，在仿真中还使用了馈电电缆的仿真模型，结果表明，差异大大减少了。

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