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A RECTANGULAR SLOTTED DUAL NOTCH UWB ANTENNA FOR WIRELESS COMMUNICATION APPLICATION 一种用于无线通信的矩形开槽双陷口超宽带天线
Pub Date : 2023-01-01 DOI: 10.1615/telecomradeng.2023049662
SUBHASH B K, Rajashekhar C. Biradar
Data traffic is expanding in direct proportion to advancements in electronic systems and wireless communication. Increased bandwidth can alleviate data congestion. To meet the above demand a rectangular U-slotted Ultrawideband (UWB) dual notch antenna with a half cut ground structure is introduced in this work. The UWB is achieved by connecting the radiator via steps type structure having a dimension of 1mm around the radiator's edges. Furthermore, the ground plane is lowered, with horizontal slits etched on it. The radiator and ground plane modifications aid in achieving a larger impedance bandwidth. The UWB antenna has an overall geometry of 40 x 30 x 1.6 mm3. The projected UWB antenna operates in the frequency range of 2.6-3.9 GHz with greater than 3.2 dB gain across the impedance bandwidth. To achieve the notching in the design a U-shaped slot is carved in the radiator. This modification leads to dual notch frequency band ranging from 3.8-5.3 GHz and 6.2-7.3 GHz, thereby covering WiMAX and Satellite band. The time-domain features are also examined, and group delay is found to be less than 1 ns across the operational frequency except at the notch band. The simulated and measured results are in line and assure the designed antenna appropriate for UWB applications.
数据流量的增长与电子系统和无线通信的进步成正比。增加带宽可以缓解数据拥塞。为了满足上述需求,本文介绍了一种半切地结构的矩形u型槽超宽带双陷波天线。超宽带是通过在散热器边缘周围有一个尺寸为1mm的阶梯结构连接散热器来实现的。此外,降低了地平面,并在其上蚀刻了水平狭缝。散热器和地平面的修改有助于实现更大的阻抗带宽。UWB天线的整体几何尺寸为40 x 30 x 1.6 mm3。投影超宽带天线工作在2.6-3.9 GHz频率范围内,阻抗带宽增益大于3.2 dB。为了实现设计中的缺口,在散热器上雕刻了一个u形槽。这一改进导致了3.8-5.3 GHz和6.2-7.3 GHz的双陷波频段,从而覆盖了WiMAX和Satellite频段。时域特征也被检查,发现群延迟小于1ns横跨工作频率,除了在陷波带。仿真结果与实测结果一致,保证了设计的天线适合超宽带应用。
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引用次数: 0
A MODEL OF REFLECTIONS OF PULSED RADIO SIGNALS FROM THE EARTH'S SURFACE AND ITS PRACTICAL USE IN ASSESSING THE ACCURACY OF AMPLITUDE DIRECTION FINDERS 地球表面脉冲无线电信号反射的模型及其在评估振幅测向仪精度中的实际应用
Pub Date : 2023-01-01 DOI: 10.1615/telecomradeng.v82.i10.40
Vladimir Kuprits, Alexander A. Mescheryakov, Vladimir Gulko, Vladislav Weber
The description of a mathematical model of reflections of pulse radio signals from the underlying Earth's surface and results of its practical use for estimation of accuracy of amplitude direction finders with horn antennas and antenna arrays of Vivaldi elements are presented. It is shown that the use of the proposed multipoint model of reflections from the ground surface allows an analysis of distortions of received pulse signals and estimation of errors of direction finding of radio emission sources by a monopulse amplitude direction finder on surface traces of radio wave propagation of different lengths.
本文描述了来自下伏地表的脉冲无线电信号反射的数学模型,并给出了该模型在喇叭天线和维瓦尔第单元天线阵列振幅测向仪精度估计中的实际应用结果。结果表明,利用所提出的地表反射多点模型,可以分析接收到的脉冲信号的畸变,并估计单脉冲幅度测向仪在不同长度的无线电波传播的地表轨迹上对射电发射源测向的误差。
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引用次数: 0
INDEX, VOLUME 82, 2023 索引,第82卷,2023年
Pub Date : 2023-01-01 DOI: 10.1615/telecomradeng.v82.i12.50
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引用次数: 0
A NOVEL COMPACT TE-DGS UWB ANTENNA FOR WIRELESS COMMUNICATION APPLICATIONS 一种用于无线通信应用的新型紧凑te-dgs超宽带天线
Pub Date : 2023-01-01 DOI: 10.1615/telecomradeng.v82.i11.30
V. N. D. Koteswara Rao, N. V. K. Maha Lakshmi, D. Srinivasa Rao, G. V. Subrahmanyam, S. Chandra Sekhar, V. L. N. Phani Ponnapalli, Vella Satyanarayana
In this study, we investigated a novel triangularly etched defective ground structure (TE-DGS) microstrip line fed a compact slotted ultra-wideband (UWB) antenna. The proposed antenna has a compact design size of 20 × 28 mm2 and a distinctive slotted patch configuration printed on a FR-4 substrate. The described antenna has a fractional bandwidth of 130% and an S11 value of less than -10 dB across 3.1-14.52 GHz. The radiator was practically fabricated, and the experimental findings concurred well with the results obtained from the simulation. Across the entire operational bandwidth, the designed antenna preserved excellent impedance matching, constant gain, and steady radiation patterns in the frequency domain as well as constant group delay, minimized isolation, and linear phase in the time domain.
在这项研究中,我们研究了一种新型的三角形蚀刻缺陷地面结构(TE-DGS)微带线馈送紧凑型开槽超宽带(UWB)天线。所提出的天线具有紧凑的设计尺寸为20 &28 mm< sup> 2 & lt; / sup>以及印在FR-4基板上的独特的开槽贴片结构。所述天线的分数带宽为130%和S<sub>11</sub>值在3.1-14.52 GHz范围内小于- 10db。实际制作了该散热器,实验结果与仿真结果吻合较好。在整个工作带宽范围内,设计的天线在频域保持了良好的阻抗匹配、恒定增益和稳定的辐射模式,在时域保持了恒定的群延迟、最小的隔离和线性相位。
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引用次数: 0
GAUSS-NEWTON MULTILATERATION LOCALIZATION ALGORITHM IN LARGE-SCALE WIRELESS SENSOR NETWORKS FOR IoT APPLICATIONS 物联网应用中大规模无线传感器网络中的高斯-牛顿多重定位算法
Pub Date : 2023-01-01 DOI: 10.1615/telecomradeng.v82.i11.20
Srilakshmi Aouthu, Veeramreddy Jyothsna, Kuraparthi Swaraja, Ravilla Dilli
The location information of sensor nodes plays an important role in critical applications like health monitoring, fire detection, and intruder detection. Installing global positioning system (GPS) modules with the sensor node hardware is not a cost-effective solution for knowing the location coordinates. This has lead to rigorous research in defining nascent localization techniques for wireless sensor networks. But, the existing localization techniques use more number of anchor nodes to compute the location coordinates of sensor nodes, and the network deployment becomes costly. This article presents a low complex, range-based localization algorithm called gauss-newton multilateration that uses received signal strength indicator (RSSI) values of the anchor nodes' signals received at the target nodes. The proposed algorithm uses only four static anchor nodes, which are deployed at the corners of the network terrain to locate the sensor nodes with localization accuracy of 90.21&#37; and increased up to 98.59&#37;. Based on the results obtained, the proposed algorithm provides higher localization accuracy, and it is well suited for locating sensor nodes with high accuracy in large scale wireless sensor networks.
传感器节点的位置信息在健康监测、火灾检测和入侵者检测等关键应用中起着重要作用。在传感器节点硬件上安装全球定位系统(GPS)模块并不是了解位置坐标的经济有效的解决方案。这导致了对定义无线传感器网络的新兴定位技术的严格研究。但是,现有的定位技术使用较多的锚节点来计算传感器节点的位置坐标,网络部署成本较高。本文提出了一种低复杂度、基于距离的定位算法,称为高斯-牛顿乘法,该算法使用目标节点接收到的锚节点信号的接收信号强度指标(RSSI)值。该算法仅使用部署在网络地形角落的4个静态锚节点对传感器节点进行定位,定位精度为90.21%上升到98.59%实验结果表明,该算法具有较高的定位精度,适用于大规模无线传感器网络中高精度的传感器节点定位。
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引用次数: 0
FACTORIZATION OF DEGREE k-ALMOST SIMPLE POLYNOMIALS k次几乎简单多项式的因数分解
Pub Date : 2023-01-01 DOI: 10.1615/telecomradeng.2023048421
Anatoly Beletsky, Mikolay Karpinski
In this work, we introduce the notion of k-almost prime polynomials formed by the product over a Galois field of an arbitrary characteristic p of exactly k irreducible polynomials. The study aims to develop an effective algorithm for factorizing the degree of such composite polynomials providing a minimum of computational complexity. The proposed algorithm is based on the solution of a system of two equations functionally related to the a priori unknown degree of the components of the compound polynomial. One of these equations reflects that the degree of the composite polynomial equals the sum of degrees of elements of this polynomial. The second equation is based on the so-called cycle period of the compound polynomial, which coincides with the least common multiple of the unknown degrees of the components of the compound polynomial. It is found that the expansion of the cycle period contains all the degrees of the factorizable compound polynomial. The computational volume reduction is achieved by switching from the linear scale of the multiplicative group of subtractions generated by the cycle period of the compound polynomial to the logarithmic scale.
在这项工作中,我们引入了k-概素数多项式的概念,它是由k个不可约多项式的任意特征p在伽罗瓦域上的积所形成的。本研究旨在开发一种有效的算法,以提供最小的计算复杂度来分解这些复合多项式的程度。所提出的算法是基于两个方程系统的解,该系统与复合多项式的组成部分的先验未知度函数相关。其中一个方程反映了复合多项式的度数等于该多项式各元素的度数之和。第二个方程是基于所谓的复合多项式的循环周期,它与复合多项式的未知分量的最小公倍数相吻合。发现循环周期的展开式包含了可分解复合多项式的所有次。计算量的减少是通过从由复合多项式的循环周期产生的减法乘法组的线性尺度切换到对数尺度来实现的。
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引用次数: 0
INTELLIGENT AUTONOMOUS PARKING SYSTEM INTEGRATING RFID AND IOT FOR SMART CITIES 为智慧城市集成rfid和物联网的智能自主停车系统
Pub Date : 2023-01-01 DOI: 10.1615/telecomradeng.2023050300
Pushgara Rani d, PRASANNA R, Surenderanath s, Kalaiselvi VKG, Vaishnavi v, Rithika p
An autonomous parking system is the essential innovation for stress free car parking in smart cities. The efficient use of resources is a key goal of smart cities, and their integration with technology has improved productivity and dependability for urban infrastructure. In this paper, an efficient automated parking system integrating Internet of Things (IOT) and radio frequency identification (RFID) technologies is proposed. The proposed system is integrated with IOT hence the consumers can book the parking slots before arriving the destination which drastically reduce the time taken by the consumers in searching the parking slot. The proposed system effectively saves time for the consumers and also significantly provide solution for all the parking related issues faced by the management of flats, theatres, malls, hospitals etc. In management perspective, this system would help them for better use of their resources and reduce the amount of labour needed to maintain these parking lots. The automated parking system overcome the important issue of jamming near the gates of parking slots by smoothening the check in and check out process of vehicles. The RFID tags given to the drivers reduces the time for vehicle identification as it is done automatically. The proposed system avoids long queue at the gates, unnecessary traffic jam near the gates, reduces the time, and ensures security by allowing only the registered users identified through RFID tags. Thus the proposed system will be a sophisticated system for the consumers, drivers and a boon to mall owners and management
自动停车系统是智能城市无压力停车的关键创新。资源的有效利用是智慧城市的关键目标,它们与技术的融合提高了城市基础设施的生产力和可靠性。本文提出了一种集成物联网(IOT)和射频识别(RFID)技术的高效自动泊车系统。该系统与物联网相结合,消费者可以在到达目的地之前预订停车位,从而大大减少了消费者寻找停车位的时间。建议的系统有效地节省了消费者的时间,也显著地解决了单位、剧院、商场、医院等管理部门所面临的所有与停车有关的问题。从管理的角度来看,这个系统将帮助他们更好地利用他们的资源,并减少维护这些停车场所需的劳动力。自动泊车系统通过简化车辆的进出泊车过程,解决了泊车位大门附近的拥堵问题。给司机的RFID标签减少了车辆识别的时间,因为它是自动完成的。该系统避免了登机口排长队,避免了登机口附近不必要的交通堵塞,减少了时间,并且只允许通过RFID标签识别的注册用户通过,从而确保了安全性。因此,该系统对消费者和司机来说将是一个复杂的系统,对商场业主和管理层来说将是一个福音
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引用次数: 0
Energy Efficient Operation for Next Generation Massive MIMO Network 下一代大规模MIMO网络的节能运行
Pub Date : 2023-01-01 DOI: 10.1615/telecomradeng.2023049046
Israa Hilme, Ayad Atiyah Abdulkafi
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引用次数: 0
A COMPACT HONEY COMB STRUCTURED RECONFIGURABLE ANTENNA WITH CPW FEED FOR MULTIBAND WIRELESS APPLICATIONS 一种紧凑的蜂窝状结构可重构天线,带CPW馈源,适用于多波段无线应用
Pub Date : 2023-01-01 DOI: 10.1615/telecomradeng.2023049140
subashini venugopalan, CHITRA SIVATHANU PILLAI
In recent days the design and implementation of reconfigurable antenna in wireless applications plays a tremendous role in minimizing the hardware size of wireless devices. The antenna which has the potential to vary its frequency of operation, radiation pattern and polarization according to the requirement is known as reconfigurable antenna. Here a novel honeycomb structured frequency and pattern reconfigurable monopole antenna has been designed. Honey comb structure gives better bandwidth as it have multiple edges and angles of the hexagon allow for more efficient radiation and reception of electromagnetic waves and it offers symmetric radiation pattern .It is compact sized having higher packing density. A low cost FR-4 substrate with a thickness of 1.5 mm and a compact size of 25×42 mm2 is used in the design. The antenna can be operated in four modes using two PIN diodes. In mode 0 it can resonate at 2.4 GHz which is commonly used for Wi-Fi and Bluetooth communication. While in mode 1it operates at 2.8 GHz and 1.8GHz for mobile communication. In mode 2 it operates at 2.7 GHz as well as 1.8 GHz, and in mode 3, it works at 1.8 GHz and 3.6 GHz for WiMAX communication. This antenna has the peak gain value of 3.99 dBi. Thus by changing the geometry/structure, the antenna performance can be improved. The proposed design is fabricated on FR4 substrate material and the parameters such as return loss (S11) and bandwidth are validated. The simulated results and the measured results match well.
近年来,无线应用中可重构天线的设计和实现在减小无线设备的硬件尺寸方面起着巨大的作用。具有根据需要改变其工作频率、辐射方向图和极化的潜力的天线被称为可重构天线。本文设计了一种新型的蜂窝结构频率方向图可重构单极天线。蜂窝结构提供了更好的带宽,因为它有多个边和六边形的角度,允许更有效的辐射和电磁波的接收,它提供对称的辐射模式。它是紧凑的尺寸有更高的包装密度。低成本的FR-4衬底,厚度为1.5 mm,紧凑尺寸为25×42 mm2。天线可以使用两个PIN二极管在四种模式下工作。在模式0下,它可以在2.4 GHz频率上共振,这通常用于Wi-Fi和蓝牙通信。而在模式1下,它工作在2.8 GHz和1.8GHz用于移动通信。在模式2中,它的工作频率为2.7 GHz和1.8 GHz,在模式3中,它的工作频率为1.8 GHz和3.6 GHz,适用于WiMAX通信。该天线的峰值增益值为3.99 dBi。因此,通过改变几何/结构,可以改善天线的性能。该设计在FR4衬底材料上制作,并对回波损耗(S11)和带宽等参数进行了验证。仿真结果与实测结果吻合较好。
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引用次数: 0
THE QUEST FOR PRINTED ANTENNA IN BIOMEDICAL APPLICATIONS: A REVIEW 生物医学应用中对印刷天线的探索:综述
Pub Date : 2023-01-01 DOI: 10.1615/telecomradeng.v82.i12.40
Balaka Biswas, Ayan Karmakar
This review paper investigates the prospective usage of various printed versions of antennas in different biomedical fields for the improvement of clinical diagnosis, treatment, health monitoring, Internet of Things, and ultimately the wellness of mankind. The paper highlights the worldwide market growth of such antennas, its various design strategies as per the requirement of application domain, various optimization techniques, imbibed challenges associated, and finally realization of practical circuits or systems. It also covers comparison of several recently reported structures in this context from the viewpoint of their multiple performance metrics.
本文综述了各种打印版天线在不同生物医学领域的应用前景,以改善临床诊断、治疗、健康监测、物联网,最终实现人类健康。本文重点介绍了这类天线的全球市场发展,根据应用领域的要求,其各种设计策略,各种优化技术,所面临的挑战,以及实际电路或系统的最终实现。本文还从多个性能指标的角度对这方面最近报道的几个结构进行了比较。
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引用次数: 0
期刊
Telecommunications and Radio Engineering
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