用于超宽带应用的四端口 MIMO/分集天线的三频带消除特性设计。

Design of Quad-Port MIMO/Diversity Antenna with Triple-Band Elimination Characteristics for Super-Wideband Applications.

机构信息

Department of Electrical Engineering, School of Engineering, Gautam Buddha University, Greater Noida 201308, India.

Department of Electrical Engineering, College of Engineering, Princess Nourah Bint Abdulrahman University, Riyadh 84428, Saudi Arabia (on leave from Gautam Buddha University, Greater Noida, India).

出版信息

Sensors (Basel). 2020 Jan 22;20(3):624. doi: 10.3390/s20030624.

DOI:10.3390/s20030624

PMID:31979191

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7038348/

Abstract

A compact, low-profile, coplanar waveguide (CPW)-fed quad-port multiple-input-multiple-output (MIMO)/diversity antenna with triple band-notched (Wi-MAX, WLAN, and X-band) characteristics is proposed for super-wideband (SWB) applications. The proposed design contains four similar truncated-semi-elliptical-self-complementary (TSESC) radiating patches, which are excited through tapered CPW feed lines. A complementary slot matching the radiating patch is introduced in the ground plane of the truncated semi-elliptical antenna element to obtain SWB. The designed MIMO/diversity antenna displays a bandwidth ratio of 31:1 and impedance bandwidth (|S| ≤ - 10 dB) of 1.3-40 GHz. In addition, a complementary split-ring resonator (CSRR) is implanted in the resonating patch to eliminate WLAN (5.5 GHz) and X-band (8.5 GHz) signals from SWB. Further, an L-shaped slit is used to remove Wi-MAX (3.5 GHz) band interferences. The MIMO antenna prototype is fabricated, and a good agreement is achieved between the simulated and experimental outcomes.

摘要

提出了一种用于超宽带（SWB）应用的紧凑型、低剖面、共面波导（CPW）馈电四端口多输入多输出（MIMO）/分集天线，具有三频带阻（Wi-MAX、WLAN 和 X 波段）特性。该设计包含四个相似的截断半椭圆自互补（TSESC）辐射贴片，通过锥形 CPW 馈电线激励。在截断半椭圆天线元件的接地平面中引入与辐射贴片匹配的互补槽，以获得 SWB。设计的 MIMO/分集天线显示带宽比为 31:1，阻抗带宽（|S|≤-10dB）为 1.3-40GHz。此外，在谐振贴片中植入互补分裂环谐振器（CSRR），以消除 SWB 中的 WLAN（5.5GHz）和 X 波段（8.5GHz）信号。进一步，使用 L 形缝隙去除 Wi-MAX（3.5GHz）频段干扰。制造了 MIMO 天线原型，模拟和实验结果之间具有良好的一致性。