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首页> 外文期刊>Microwave and optical technology letters >THE DESIGN OF BROADBAND OMNIDIRECTIONAL HORIZONTALLY POLARIZED DIPOLE ANTENNAS WITH BRANCH LINES
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THE DESIGN OF BROADBAND OMNIDIRECTIONAL HORIZONTALLY POLARIZED DIPOLE ANTENNAS WITH BRANCH LINES

机译：带分支线的宽带单向水平极化双极天线的设计

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摘要

In this article, a broadband omnidirectional horizontally polarized dipole antenna with branch lines is proposed. The proposed antenna consists of a dipole element with T-shaped branch lines arranged in a circle in four directions on one microstrip substrate; power is supplied through an integrated balun. To check the broadband characteristics of this antenna, its radiation characteristics were examined while changing the width of the feed line, the distance between the dipole antenna and the branch line, the length of the branch line, and the distance between branch lines. As a result, the return loss in a structure with no branch line was -10 dB or less in the 16% band of 1.7-2 GHz, but in the structure with branch lines, it was -15 dB or less in the 38% band of the PCS/IMT/WLAN (1.7-2.5 GHz), which is broader by about 500 MHz than in a conventional antenna. The gain of the proposed antenna was atleast 1 dBi in the band used. The proposed antenna has a thin profile, as it consists of a single substrate. (C) 2015 Wiley Periodicals, Inc.
机译：本文提出了一种具有分支线的宽带全向水平极化偶极天线。所提出的天线由一个偶极子元件组成，在一个微带基板上，该偶极子元件的T形分支线在四个方向上成圆形排列。通过集成的不平衡变压器供电。为了检查该天线的宽带特性，在改变馈电线的宽度，偶极天线与支线之间的距离，支线的长度以及支线之间的距离的同时检查了其辐射特性。结果，在没有分支线的结构中，回波损耗在1.7-2 GHz的16％频带内为-10 dB或更小，但是在具有分支线的结构中，在38％的范围内回波损耗为-15 dB或更小PCS / IMT / WLAN的频带（1.7-2.5 GHz），比传统天线宽约500 MHz。所建议天线的增益在所使用的频带中至少为1 dBi。所提出的天线具有薄的轮廓，因为它由单个基板组成。 （C）2015年Wiley Periodicals，Inc.

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