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首页> 外文期刊>AEU: Archiv fur Elektronik und Ubertragungstechnik: Electronic and Communication >Design of a tapered CPW-fed wideband antenna and its application to multi-channel transmission using a hybrid wireless communication system
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Design of a tapered CPW-fed wideband antenna and its application to multi-channel transmission using a hybrid wireless communication system

机译：使用混合无线通信系统设计锥形CPW框架宽带天线及其在多通道传输的应用

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摘要

A tapered Coplanar Waveguide (CPW)-fed wideband antenna with a nearly omnidirectional radiation pattern in the H-plane and a stable dipole-like radiation pattern for the E-plane is presented. The proposed antenna operates in two wide bands centered at 3.3 and 5 GHz. Furthermore, the antenna structure consists of a tapered feed line, which provides an impedance transformation from the quarter-wave monopole impedance to the 50 Omega input characteristic impedance. Also, two trapezoidal ground planes are added between the monopole and the CPW to achieve impedance matching. Variations in the antenna dimensions are included to monitor the bandwidth and to evaluate the efficiency of impedance matching. Moreover, in order to evaluate the performance of the proposed antenna, a hybrid wireless communication system is used to simultaneously transmit two analog TV signals. These TV signals modulate two microwave subcarriers located at 3.3 and 5 GHz. The resulting multiplexed signal is propagated between two antennas that are separated by a distance of 1 m. The modulated subcarriers are transmitted over an optical link of 30 km by using an optical communication system based on external modulation. The signal at the end of the optical link is successfully recovered by using a conventional demodulation scheme. (C) 2019 Elsevier GmbH. All rights reserved.
机译：呈现了一个锥形共面波导（CPW）的宽带天线，其具有在H平面中的几乎全向辐射图案和用于E平面的稳定的偶极辐射图案。所提出的天线在两个以3.3和5 GHz为中心的宽带操作。此外，天线结构由锥形进料管线组成，其提供从四分之一波单极阻抗到50ω输入特征阻抗的阻抗变换。而且，在单极和CPW之间添加了两个梯形接地面，以实现阻抗匹配。包括天线尺寸的变化来监视带宽并评估阻抗匹配的效率。此外，为了评估所提出的天线的性能，混合无线通信系统用于同时发送两个模拟电视信号。这些电视信号调制位于3.3和5 GHz的两个微波子载波。得到的多路复用信号在两个天线之间传播，该天线被分隔为1μm。通过使用基于外部调制的光通信系统，通过使用光通信系统在30km的光链路上传输调制的子载波。通过使用传统的解调方案成功恢复光链路末端的信号。 （c）2019年Elsevier GmbH。版权所有。

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