Triple-Band Dual-Polarized Dipole Antenna for 5G Sub-6 GHz Communications

Wireless Personal Communications - A triple-band ± 45° dual-polarized dipole antenna is presented in this paper. The proposed antenna covers two n77 bands and one n79 band in...     

A Compact Semi-circular Slot MIMO Antenna with Enhanced Isolation for Sub-6 GHz 5G WLAN Applications

In this paper, a novel compact semi-circular slot (SCS) 2 × 2 MIMO antenna is presented for 5G NR sub-6 GHz applications with high isolation. The proposed antenna consists of a semi-circular slot in ground plane, U-shaped stub, and 50-ohm microstrip feed line. The novelty of this paper are the Semi-Circular Slot acts a radiator, the port isolation  is enhanced using a simple conductor strip as a neutralization line, very compact in size, low ECC, and good impedance matching. The overall size of the proposed SCS MIMO antenna is 16 mm x 21 mm, and FR4 substrate is used with thickness of 1.6 mm. The two SCS antenna elements are separated by edge-to-edge distance of 1mm (\(=0.019\lambda _{0}\)). The proposed compact MIMO antenna design is simulated using Ansys HFSS. To validate SCS MIMO antenna, a prototype was fabricated and tested. The measured results are attained at 5.5 GHz with isolation greater than 25dB, impedance bandwidth (S11\(<-10\) dB) covers from 5.10 GHz to 5.80 GHz with return loss of ? 39.5 dB. The MIMO antenna parameters, ECC, CCL, TARC, and MEG are studied, and the values are obtained within acceptable limits. The measured and simulated antenna results are almost similar. This compact MIMO antenna is suitable for 5G communications in sub-6 GHz wifi-5 band applications.

     

A Novel Two Port High Isolation Dual-Polarized Multiband Sub-6 GHz MIMO Antenna for IoT Connected Devices

Wireless Personal Communications - A novel multiband 2?×?2 dual-polarization antenna with couple of meander line structure is proposed for IoT connected devices. The MIMO antenna...     

Compact Bioinspired Antenna for WLAN 5 GHz Application

Wireless Personal Communications - This paper presents the development of a compact monopole antenna bioinspired in the Opuntia ficus-indica plant-shape, generated by Gielis formula, built in...     

Design of Metamaterial Antenna for 2.4 GHz WiFi Applications

Wireless Personal Communications - In this paper, Antenna is an evergreen field of research because of its never-ending demand in the modern communication era. In this paper metamaterial antenna is...     

一种基于5G应用的圆极化微带相控阵天线

本文提出一款应用于5G频段,可实现方位面±40°波束扫描的圆极化微带相控阵天线。该相控阵天线单元是由矩形贴片、上下介质板、缝隙耦合馈电结构、金属反射板构成。利用切比雪夫综合法的一分八不等分功分器实现相控阵天线的馈电形式。测试结果表明,阵列天线的驻波比带宽为3.25 GHz～3.69 GHz,端口隔离度大于25 dB,扫描过程中增益最大为21 dB,增益衰落小于3 dB,最大扫描角处轴比为2.89 dB。该天线具有低剖面、高隔离度、高增益以及良好的波束扫描性能等优点。     

Concurrent 60/94 GHz SIR Based Planar Antenna for 5G/MM-Wave Imaging Applications

The present research work aims towards the design of a stepped impedance resonator (SIR) based dual band antenna having resonant frequencies at millimeter wave: V band (center frequency: 60 GHz) and W band (center frequency: 94 GHz). The structure comprises of stepped impedance resonator (SIR) patch, two stepped section impedance matching network and a microstrip feedline. The fractional bandwidth of the proposed dual band antenna is 2.9 GHz (4.8%) and 6.25 GHz (6.6%) at 60 and 94 GHz, respectively. The far field polar plots show broadside radiation pattern having gain of 7.9 dBi at 60 GHz and 4.2 dBi at 94 GHz. Further, as a testimony of this concept, scaling principle was used and accordingly microwave scaled antenna was devised. The prototype scaled hardware results matched closely with the designed mm-wave antenna. Further, the proposed dual frequency antenna finds enormous applications towards development of pioneering millimeter wave systems like; 60 GHz is focused on multi gigabit WPAN communication and 94 GHz frequency is currently extensively used for millimeter wave imaging applications. The proposed design is very simple, conformal and easily extendable as an array for MMIC applications for compact frontend design.

     

一种用于5G的大规模MIMO天线阵设计

设计了一种用于第五代移动通信系统的大规模MIMO天线阵。该天线阵采用8×8矩形排布,天线单元采用缝隙耦合馈电的贴片形式,通过蚀刻在上层地板上的两个正交H型缝隙对辐射贴片分别耦合馈电来实现±45°双线极化特性。所设计的天线阵工作在3. 4 GHz~3. 6 GHz,具有剖面低、结构紧凑、便于与射频前端集成化设计的特点,能够很好地满足下一代移动通信系统对天线阵的设计要求。     

一种适用于LTE和Sub-6 GHz频段的宽带双极化基站天线

提出了一种适用于LTE和Sub-6 GHz频段的紧凑型双极化基站天线辐射单元,辐射振子臂采用1.2 mm板厚的FR4基板双层印制工艺。利用在双极化辐射单元上方加载寄生单元的方式来扩展天线工作频带。实物测试结果显示天线工作频段可连续覆盖LTE(1.8 GHz^2.7 GHz)和5G的Sub-6 GHz频段(3.3 GHz^3.7 GHz),带内电压驻波比小于1.8,隔离度大于20 dB。天线最高增益为9.42 dBi,半功率波束宽度为60°±9°。测试和仿真结果吻合较好。可应用于4G和5G移动通信基站。     

4 Element compact triple band MIMO antenna for sub-6 GHz 5G wireless applications

Wireless Networks - A compact 4 element MIMO antenna operating in three Sub-6&nbsp;GHz 5G bands is proposed. The single element antenna consists of a square-shaped patch where circular and...     

适用于5G通信的宽带毫米波MIMO天线的设计

针对当前5G通信要求的高速率,提出了一种加载水平条形枝节和蝶形寄生单元的倒L型偶极子宽带MIMO天线。该天线以具有不完全地板的倒L型偶极子天线为辐射主体,加载水平条形枝节有效拓展了天线带宽,在天线上端加载一个蝶形寄生单元,有效提升了天线增益;最后将两个天线单元正交摆放,得到了MIMO天线的最终结构。对天线进行仿真与优化,最终结果表明,天线相对带宽达到40.9%(23.1~35 GHz),工作频带内的隔离度均小于-19 dB,带内增益为5.3~7.13 dBi。与引文其它天线相比,目标天线尺寸较小,具有较宽的频带和较高的增益,同时具有良好的隔离度和定向性。天线实测结果与仿真结果基本吻合,验证了其研究与应用价值。     

5GHz载频在第四代移动通信系统中的应用场景分析

5GHz作为第四代移动通信的新的备选使用频段,如何确定它的应用场景是4G通信系统设计的基础.本文分析了5GHz载频的电磁波传播特性,并根据第四代移动通信系统的系统需求分析了该条件下的信道特点,最后根据实测路损模型确定了5GHz载波在4G通信系统的应用场景和相应的基站发射功率.结论为:5GHz的载波在第四代移动通信系统中适合小覆盖范围,高传输速率的应用场景,在室内,市区微蜂窝,市区宏蜂窝和固定点对点环境下可以发挥良好的传播性能.     

Two Port Circularly Polarized MIMO Antenna Design and Investigation for 5G Communication Systems

Wireless Personal Communications - A compact size wideband circularly polarized (CP) 2-port multiple-input-multiple-output (MIMO) antenna is designed for the fifth generation (5G) region under the...     

Design,Simulation and Analysis of a High Gain Small Size Array Antenna for 5G Wireless Communication

Wireless Personal Communications - Microstrip antennas have become a part and parcel of today’s wireless communication world because of their low profile, low cost and ease of fabrication in...     

Compact Patch Antenna Array for 60 GHz Millimeter-Wave Broadband Applications

Wireless Personal Communications - In this study, a wide-band compact patch antenna array is developed for 60&nbsp;GHz band applications. The antenna array consists of eight identical elements....     

5G大规模紧耦合阵列天线研究

介绍了5G移动通信技术的概念、背景、发展历程以及大规模阵列天线对于5G移动通信系统的重要性;详细阐述了二维、三维阵列天线的基本原理和相关理论;在此基础上,重点介绍了紧耦合阵列天线,其具有体积小、带宽大等技术优势,是5G大规模阵列天线研究的重要方向;详细阐述了紧耦合阵列天线的构成、设计方法和设计步骤,设计出了一种高性能5×5的紧耦合阵列天线.     

Sub-5 nm FIB direct patterning of nanodevices

Nanoengraving of membranes as a template for nanopores fabrication is an application field of growing interest. Similarly to the formation of ion tracks in membranes created when high-energetic ions pass trough thin foils, it is possible with a FIB system to fabricate, design and organise nanodevices within thin membranes. In this work, we detail the advanced methodology we have carefully optimised for such deep sub-10 nm nanodevices fabrication using our high-performance FIB instrument.     

Design of Simulation System for LTE-U Using 5 GHz Band in MATLAB

Wireless Personal Communications - Unused spectrum is being a limited commodity for the telecom industry. However, up to 500&nbsp;MHz of unlicensed spectrum in 5&nbsp;GHz band is in use for...     

Efficient Design of Bi-circular Patch Antenna for 5G Communication with Mathematical Calculations for Resonant Frequencies

Wireless Personal Communications - In this paper the conventional circular patch has been reshaped by two circular arcs with the FR4 Epoxy material for substrate. This is supported by the...     

Design and Analysis of High Gain Linear Rectangular Microstrip Array Antenna at 20.2 GHz of Ka Band

Wireless Personal Communications - Day by day user demand for high data transmission with uninterrupted service leads to usage of high frequency. To fulfill the demands ISRO launched GSAT-14 with...