Low-Profile and Wideband Microstrip Antenna With Stable Gain for 5G Wireless Applications
Low-Profile and Wideband Microstrip Antenna With Stable Gain for 5G Wireless Applications
复制标题
适用于 5G 无线应用的具有稳定增益的薄型宽带微带天线
DOI：
10.1109/lawp.2018.2806369
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发表时间：
2018-04-01
影响因子：
4.2
通讯作者：
Feng, Botao
中科院分区：
文献类型：
--
作者：
An, Wenxing;Li, Yue;Feng, Botao
提出了一种在相对宽频带下具有稳定辐射方向图的低轮廓微带天线。将四种不同频率的谐振模式集成在一个结构中，以稳定的增益提高带宽，并通过引入折叠壁进行匹配。在2.84 ~ 5.17 GHz范围内，采用<inline-formula>< text -math符号="LaTeX">$ {\text{0.84}}\lambda _{0}\,\times \,{\text{0.68}}\lambda _{0}\,\times \,{\text{0.06}}\lambda _{0}$</ text -math></inline-formula>的紧凑结构实现了58.3%的阻抗带宽，其中<inline-formula>< text -math符号="LaTeX">$\lambda _{0}$</ text -math></inline-formula>为中心频率为4ghz的自由空间波长。测量结果表明，该天线具有平均增益为5 dBi、辐射方向图稳定、交叉极化低、背景波低等优点，具有5G无线通信系统应用的潜力。
A low-profile microstrip antenna with stable radiation pattern in a relatively wide band is presented for 5G operation. Four resonant modes with different frequencies are integrated in a single structure to enhance the bandwidth with stable gain, and well matched by introducing the folded walls. An impedance bandwidth of 58.3% has been achieved from 2.84 to 5.17 GHz with a compact structure of <inline-formula><tex-math notation="LaTeX"> ${\text{0.84}}\lambda _{0}\,\times \,{\text{0.68}}\lambda _{0}\,\times \,{\text{0.06}}\lambda _{0}$</tex-math> </inline-formula>, where <inline-formula><tex-math notation="LaTeX">$\lambda _{0}$</tex-math></inline-formula> is the free-space wavelength at the center frequency of 4 GHz. The measurement results show that the proposed antenna is with the merits of average gain of 5 dBi, stable radiation patterns, low cross polarization, and low backlobes, exhibiting potentially use for the applications of 5G wireless communication systems.