Microstrip Magnetic Monopole Endfire Array Antenna With Vertical Polarization
Microstrip Magnetic Monopole Endfire Array Antenna With Vertical Polarization
复制标题
垂直极化微带磁单极端射阵列天线
DOI:
10.1109/tap.2016.2597643
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发表时间:
2016-08
影响因子:
5.7
通讯作者:
Yunliang Long
中科院分区:
文献类型:
--
作者:
Zhixi Liang;Yuanxin Li;Juhua Liu;Shao Yong Zheng;Yunliang Long
A new microstrip endfire array antenna with vertical polarization is proposed in this paper. The novel array element consists of two symmetrical rectangular patches on both sides of a substrate with two edges shorted and other edges opened. We use a cavity model to analyze the mechanism of the array element, which we find can work as a “magnetic monopole antenna.” The magnetic current on the open sides, which features quarter cycle sinusoidal variation, generates a tilted monopole-like radiation pattern. The tilted angle can be easily determined by the length-to-width ratios of the magnetic monopole antenna. A two-element endfire array and a four-element endfire array are proposed here to achieve endfire vertical polarization with a very low profile (3 mm). The two-element endfire array has a bandwidth from 2.42 to 2.48 GHz and a peak endfire gain of 5.3 dBi. With four array elements, the peak endfire gain can be enhanced to 7.7 dBi in a bandwidth from 2.40 to 2.48 GHz.
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