Radioelectronics and Communications Systems最新文献_第7页

Matrix D-Tree Method and Its Application for Symbolic Analysis of Linear Periodically Time-Variable Circuits in Frequency Domain 矩阵D树方法及其在线性周期时变电路频域符号分析中的应用

Radioelectronics and Communications Systems Pub Date : 2022-09-01 DOI: 10.3103/S0735272722100041

Y. Shapovalov, D. Bachyk, K. Detsyk, R. Romaniuk, Ivan Shapovalov

引用次数: 0

Circularly Polarized Hexa-Band Planar Slot Antenna for WLAN and Wireless Communication Application 用于WLAN和无线通信的圆极化六频带平面槽天线

Radioelectronics and Communications Systems Pub Date : 2022-08-11 DOI: 10.3103/s0735272722010058

Reshmi Dhara, Taraknath Kundu, Mahato Sanoj

{"title":"Circularly Polarized Hexa-Band Planar Slot Antenna for WLAN and Wireless Communication Application","authors":"Reshmi Dhara, Taraknath Kundu, Mahato Sanoj","doi":"10.3103/s0735272722010058","DOIUrl":"https://doi.org/10.3103/s0735272722010058","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Herein the modest, miniaturized circularly polarized hexa-band monopole antenna is anticipated for multipurpose application. Using microstrip line feeding the monopole antenna is created by utilizing triple strips, a slotted square loop containing square ground plane and two slotted stubs transversely over the diagonal line on the square loop. The optimization of antenna design parameters is furnished four wide impedance bandwidths (IBW). The measured quad IBW at <i>S</i><sub>11</sub> < –10 dB ranges 4.04–6.61, 7.70–7.81, 10.36–18.93, and 19.57–beyond 20 GHz (after 20 GHz, utilizing the available VNA can not be measured IBW). Whereas the simulated IBWs range 4.21–6.23, 8.55–8.85, 10.32–17.25, and 19.20–beyond 30 GHz. The simulated six axial-ratio bandwidths are of 380, 205, 360, 553, 907 and 290 MHz at the center frequencies <i>f</i><sub>CP</sub> = 5.12, 10.78, 11.97, 14.63, 16.85, 28.58 GHz, correspondingly. The measured results match with the simulations by Ansys Electronics Desktop 2020R1 that are additionally confirmed in CST Microwave Studio. The antenna, presented in this paper, is compact, fabricated with the optimal dimension of 20×20×1.6 mm<sup>3</sup>, with 38.49% reduction in size. The proposed antenna can be appropriate for application in WLAN and some other wireless communication devices.</p>","PeriodicalId":52470,"journal":{"name":"Radioelectronics and Communications Systems","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138527286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Channel Capacity Analysis of Various Adaptive Transmission Schemes and BER Performance at Beaulieu-Xie Fading 各种自适应传输方案的信道容量分析及博谢衰落下的误码率性能

Radioelectronics and Communications Systems Pub Date : 2022-08-11 DOI: 10.3103/s0735272722010034

Laishram Mona Devi, Aheibam Dinamani Singh

{"title":"Channel Capacity Analysis of Various Adaptive Transmission Schemes and BER Performance at Beaulieu-Xie Fading","authors":"Laishram Mona Devi, Aheibam Dinamani Singh","doi":"10.3103/s0735272722010034","DOIUrl":"https://doi.org/10.3103/s0735272722010034","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Optimization of spectral efficiency and quality of service can attain functional channel capacity for a wireless communication system. The channel capacity analysis over a fading channel is essential for realizing this goal. A recently developed model called Beaulieu–Xie fading channel model acquires the flavors of flexibility from Nakagami-m fading parameters and the non-centralized chi-distribution of the Rician fading model, which characterizes both line of sight and non-line of sight channels. The current work presents the channel capacity analysis with adaptive transmission techniques over Beaulieu–Xie fading channels. Various adaptive transmission schemes, such as channel inversion with a fixed-rate, truncated channel inversion with a fixed-rate, and optimal rate adaptation, are evaluated for the Beaulieu–Xie fading channel model. Additionally, the performance of the wireless system in terms of the bit error rate of coherent and non-coherent modulation is derived mathematically for this fading channel. Lastly, the mathematical expressions derived are verified with the help of Monte–Carlo simulation or standard results available in the literature.</p>","PeriodicalId":52470,"journal":{"name":"Radioelectronics and Communications Systems","volume":"23 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138527247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Peculiarities of Time Domain Antenna Measurement Using Ultra-Short Pulses 超短脉冲时域天线测量特性研究

Radioelectronics and Communications Systems Pub Date : 2022-08-11 DOI: 10.3103/s0735272722010022

Anatoliy M. Bobreshov, Stanislav E. Neskorodov, Grigoriy K. Uskov

{"title":"Peculiarities of Time Domain Antenna Measurement Using Ultra-Short Pulses","authors":"Anatoliy M. Bobreshov, Stanislav E. Neskorodov, Grigoriy K. Uskov","doi":"10.3103/s0735272722010022","DOIUrl":"https://doi.org/10.3103/s0735272722010022","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This paper proposes a method for measuring the antenna radiation pattern (RP) with ultrashort pulses using the tower method at an open test site. It has been shown by experiments that the far-field boundary does not depend on the pulse duration if the bandwidth of exciting pulse exceeds that of antenna. When measuring in the interference zone, it is possible to separate the direct pulse and the pulse reflected from the underlying surface in time domain at any RP shape of the antennas used. The time window method makes it possible to exclude reflections from the ground and simulate the free space. The energy attenuation typical for the free space has been demonstrated when radiating at raised antennas and using a time window. In this case, there is no interference pattern typical for narrowband signals. It is shown that if the pulse reflected from the ground cannot be eliminated, the attenuation acquires the character of propagation along the underlying terrain. To demonstrate the use of the proposed technique, measurements of the horn antenna RP obtained by the pulse method are presented, and the results obtained are compared with the measurements in an anechoic chamber employing narrowband signals.</p>","PeriodicalId":52470,"journal":{"name":"Radioelectronics and Communications Systems","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138543003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Protection of Coherent Pulse Radars against Combined Interferences. 4. Adaptive Systems of Space-Time Signal Coprocessing against Background of Combined Interference Based on Two-Dimensional ALF 相干脉冲雷达对组合干扰的防护。4.基于二维ALF的组合干扰背景下的空时信号自适应协同处理系统

Radioelectronics and Communications Systems Pub Date : 2022-08-01 DOI: 10.3103/S0735272722070019

V. Riabukha, A. Semeniaka, Y. Katiushyn, D. Atamanskiy

引用次数: 0

Speed Estimation of Broadband Access to Internet via xDSL Technology 基于xDSL技术的宽带上网速度估计

Radioelectronics and Communications Systems Pub Date : 2022-08-01 DOI: 10.3103/S0735272722080052

Vitaliy A. Balashov, Vasyl I. Oreshkov, I. Barba, Volodymyr Pedyash

引用次数: 0

Device to Monitor Radio Path Operation of Earth Station of Satellite System for Remote Sensing of the Earth 地球遥感卫星系统地球站无线电路径运行监测装置

Radioelectronics and Communications Systems Pub Date : 2022-08-01 DOI: 10.3103/S0735272722080040

F. Dubrovka, S. Y. Fabirovskyi, Volodymyr-Myron Miskiv, I. Prudyus, V. H. Storozh

引用次数: 0

Presenting AR Model Error in Terms of Geman-McClure Function for Prediction of Processes in Telecommunications 基于吉曼-麦克卢尔函数的AR模型误差在电信过程预测中的应用

Radioelectronics and Communications Systems Pub Date : 2022-08-01 DOI: 10.3103/S0735272722090023

Oleksii Holubnychyi, M. Zaliskyi, O. Shcherbyna, O. Ivanets

引用次数: 0

Reception of M-ary Orthogonal Negacyclic Code Shift Keying Signals Based on Odd Discrete Fourier Transform 基于奇数离散傅里叶变换的正交负环码移键控信号接收

Radioelectronics and Communications Systems Pub Date : 2022-08-01 DOI: 10.3103/S0735272722110024

I. Gepko

引用次数: 0

Design and Analysis of AMC Reflector Integrated Flexible and Compact Vehicular Antenna for Communication Application AMC反射镜集成柔性紧凑型车载通信天线的设计与分析

Radioelectronics and Communications Systems Pub Date : 2022-08-01 DOI: 10.3103/S0735272722090059

A. Badisa, B. Madhav, Kantamneni Srilatha, A. V. Chillarige, Vineel Battula, Ch. V. Garimella

引用次数: 0