Aeu-International Journal of Electronics and Communications最新文献_第2页

High-Performance monolithic ceramic waveguide filter with isosceles Right-Angled triangular resonator for base station applications 带等腰直角三角形谐振器的高性能单片陶瓷波导滤波器，适用于基站应用

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-13 DOI: 10.1016/j.aeue.2024.155516

{"title":"High-Performance monolithic ceramic waveguide filter with isosceles Right-Angled triangular resonator for base station applications","authors":"","doi":"10.1016/j.aeue.2024.155516","DOIUrl":"10.1016/j.aeue.2024.155516","url":null,"abstract":"<div><p>This paper presents a high-performance integrated monolithic ceramic dielectric waveguide (DW) filter featuring isosceles right-angled triangular (IRAT) resonators. The fabrication process of the filter involves embedding a specific number of blind holes (BHs) or through holes/slots (THs/TSs) in a hexagonal ceramic dielectric block, fully metallizing the dielectric surface, and forming a monolithic ceramic DW filter. To achieve magnetic coupling, four THs and a BH are introduced in the oblique edges of two IRAT resonators; alternatively, a TS and BH are introduced in their right-angled edges. Electrical coupling is realized through a deep BH on the right-angle side of the resonators. Two non-adjacent resonators initiate weak cross-coupling by cascading a T-shaped rectangular TS, shallow BHs, and deep BH, creating two transmission zeros (TZs) outside the band. The filter was fabricated to ensure theoretical correctness and process reliability. The measured results show an insertion loss between 0.5 – 1 dB and a return loss greater than 18 dB at a bandwidth of 3.4 – 3.6 GHz. Two steep out-of-band TZs occur at 3.26 GHz and 3.72 GHz, aligning with simulation results. Therefore, the filter not only exhibits excellent performance but is also convenient for mass production and manufacturing, offering significant potential for future applications in 5G / 6G communication base stations.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An inverted F-shaped slotted broadband metasurface-based circularly polarized patch antenna for 5G application 一种用于 5G 应用的倒 F 型开槽宽带元表面圆极化贴片天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-12 DOI: 10.1016/j.aeue.2024.155507

{"title":"An inverted F-shaped slotted broadband metasurface-based circularly polarized patch antenna for 5G application","authors":"","doi":"10.1016/j.aeue.2024.155507","DOIUrl":"10.1016/j.aeue.2024.155507","url":null,"abstract":"<div><p>This paper presents an inverted F-shaped slotted broadband metasurface (MS)-based circularly polarized (CP) microstrip patch antenna. The host antenna comprises a truncated corner square patch with an inverted F-shaped slot, positioned on a 1.6 mm thick FR-4 substrate backed by ground plane. Concurrently, the MS layer is composed of a 4 × 4 square ring array, constructed on a separate 1.6 mm thick FR-4 substrate with net compact dimensions 0.54λ<sub>o</sub> × 0.54λ<sub>o</sub> × 0.027λ<sub>o</sub> at 5.13 GHz, serving as a superstrate layer. The proposed antenna exhibits impressive performance, including a −10-dB impedance bandwidth from 4.40 GHz to 7.38 GHz as well as a 3-dB axial ratio (AR) bandwidth from 4.74 GHz to 5.52 GHz. Furthermore, at 5.13 GHz, it achieves a notable maximum radiation efficiency and realized gain of 85 % and 6.95 dBic respectively. Moreover, polarization of the antenna is observed as left-handed circularly polarized (LHCP). To validate the impedance response, the antenna’s equivalent circuit model has been sequentially developed, followed by the fabrication of a prototype. The measured results closely resemble with the simulated responses, indicating strong consistency between theory and experimental results. With its overall compact dimension of 0.65λ<sub>o</sub> × 0.65λ<sub>o</sub> × 0.027λ<sub>o</sub> at 5.13 GHz, the proposed CP antenna is well-suited for 5G application.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142230586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of Doherty power amplifier with power back-off extension based on harmonic tuning and output combining network optimization 基于谐波调谐和输出组合网络优化设计具有功率后置扩展功能的 Doherty 功率放大器

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-12 DOI: 10.1016/j.aeue.2024.155528

{"title":"Design of Doherty power amplifier with power back-off extension based on harmonic tuning and output combining network optimization","authors":"","doi":"10.1016/j.aeue.2024.155528","DOIUrl":"10.1016/j.aeue.2024.155528","url":null,"abstract":"<div><p>This paper proposes a Doherty power amplifier (DPA) design method based on harmonic tuning and output combining network (OCN) optimization to extend the power back-off (PBO) range. Firstly, based on the optimal harmonic load impedance, a harmonic tuning optimization method is used to design the harmonic tuning network of the amplifiers, effectively improving the efficiency at saturation and PBO. Secondly, the fundamental output matching network and the post-matching network are considered as an OCN. The <em>S</em>-parameters of the OCN are calculated and utilized in the DPA design. To further expand the PBO range, the carrier load impedance at PBO is determined by considering the relationship between PBO range and reflection coefficient. Finally, a multi-objective evolutionary algorithm combined with the theory of solution set is used to optimize the OCN design, simplifying the design process of the output matching network. For verification, a high-efficiency DPA operating at 1.68 GHz with a large PBO range of 9.5 dB is designed and measured. Results indicate that the proposed DPA achieves a saturated output power greater than 44 dBm, with a peak efficiency of up to 75.2%. The efficiencies are 68.5% and 61.0% at 6 and 9.5 dB back-off powers, respectively.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142232220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient resource management in direct and indirect transmission in V2X communications V2X 通信中直接和间接传输的高效资源管理

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-11 DOI: 10.1016/j.aeue.2024.155530

引用次数: 0

A novel asymmetric antipodal Vivaldi MIMO antenna 新型非对称反向维瓦尔第多输入多输出天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-11 DOI: 10.1016/j.aeue.2024.155529

引用次数: 0

A reconfigurable ultra-wideband high-purity multimode terahertz OAM antenna array based on graphene and vanadium dioxide 基于石墨烯和二氧化钒的可重构超宽带高纯度多模太赫兹 OAM 天线阵列

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-07 DOI: 10.1016/j.aeue.2024.155514

{"title":"A reconfigurable ultra-wideband high-purity multimode terahertz OAM antenna array based on graphene and vanadium dioxide","authors":"","doi":"10.1016/j.aeue.2024.155514","DOIUrl":"10.1016/j.aeue.2024.155514","url":null,"abstract":"<div><p>A reconfigurable ultra-wideband multimode terahertz OAM antenna array based on graphene and vanadium dioxide (VO<sub>2</sub>) is presented in this paper. The uniform circular array (UCA) composed of circularly polarized (CP) antennas, which include a ring radiation patch, a parasitic patch, a perovskite substrate and an irregular VO<sub>2</sub> ground plane. The radiation patch is covered with a layer of graphene, by changing the chemical potential of graphene, the working bandwidth and axial ratio bandwidth of the antenna can be changed. By changing the phase state of VO<sub>2</sub> (metal state / insulation state) to control the working state of the antenna. The impedance bandwidth (IBW) of the CP antenna proposed is 115.09% (1.73–6.42 THz), the axial ratio bandwidth (ARBW) is 43.97% (2.36–3.69 THz). Using the CP antenna unit can simplify the complex feed network, and only feeding the equal amplitude and equal phase excitation can realize the vortex wave. Changing the number and rotation angle of the antenna unit can realize multimode vortex waves with the <em>l</em>= 0, ±1, ±2, ±3, the purity is approximately 1, respectively. The proposed UCA has excellent application prospect in the 6G communication.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142173776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metamaterial-inspired UWB MIMO antenna with polarization diversity 具有极化分集功能的超材料启发式 UWB MIMO 天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-07 DOI: 10.1016/j.aeue.2024.155518

引用次数: 0

Custom RISC-V architecture incorporating memristive in-memory computing 定制 RISC-V 架构结合了内存计算技术

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-07 DOI: 10.1016/j.aeue.2024.155505

{"title":"Custom RISC-V architecture incorporating memristive in-memory computing","authors":"","doi":"10.1016/j.aeue.2024.155505","DOIUrl":"10.1016/j.aeue.2024.155505","url":null,"abstract":"<div><p>Due to the rise in data-intensive applications, the von Neumann bottleneck is increasingly restricting modern computer architectures, resulting to latency and energy consumption. Addressing this challenge necessitates a CMOS-compatible solution with high energy efficiency and significant parallelism. Utilizing resistive switching components within a 1T1R crossbar array and the application of Stanford RRAM model, this paper suggests an original method for in-memory computing. Moreover, this work shows a new way to advance the popular RISC-V architecture by including memristive crossbar array. It does this by adding a custom instruction set, special hardware blocks, and the Scouting Logic Scheme. These modifications serve both as a comprehensive testbed for the memory system and a proof of concept for the future integration of memristors in computing architectures. The proposed design undergoes extensive testing and power analysis to validate its functionality and performance under various conditions. The results demonstrate significant improvements in computational efficiency and energy savings, highlighting the potential of memristor-based in-memory computing systems to overcome current architectural limitations.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142173772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of radiation-tolerant digital-to-analog converter and investigation on analog single event transient effects 设计耐辐射数模转换器并研究模拟单事件瞬态效应

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-06 DOI: 10.1016/j.aeue.2024.155503

引用次数: 0

Compact series-fed microstrip patch array antenna in the 60 GHz band 60 千兆赫频段的紧凑型串联馈电微带贴片阵列天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-09-06 DOI: 10.1016/j.aeue.2024.155513

{"title":"Compact series-fed microstrip patch array antenna in the 60 GHz band","authors":"","doi":"10.1016/j.aeue.2024.155513","DOIUrl":"10.1016/j.aeue.2024.155513","url":null,"abstract":"<div><p>Despite the inherent transmission-range limitations of 60 GHz band, it has applications in a wide variety of fields, notably in rear occupant alert (ROA) systems for monitoring vehicle occupants in rear seats. In-vehicle monitoring radar systems commonly utilize microstrip patch antennas for transmitting and receiving electromagnetic waves, which generally suffer from limited bandwidth. Although various techniques such as stub matching and single and multi-section quarter-wave transformers can be employed to widen the bandwidth of a microstrip patch antenna, they lead to an overall increase in the antenna size. This study proposes a compact 3 × 1 series-fed patch array antenna designed for operation in 60 GHz band. The proposed compact antenna achieves impedance matching by employing a symmetrical inset structure on both the top and bottom of the patches, with different patch sizes and interelement spacings. The overall antenna dimensions, using the RO4830 substrate (ε<sub>r</sub> = 3.23, tan <em>δ</em> = 0.0033), are 1.41 mm × 7.04 mm × 0.125 mm. The impedance bandwidth ranges from 60.95 to 66.73 GHz, and the maximum realized gain is 10.24 dBi at 62.5 GHz. The half-power beam-widths (HPBWs) are 33.96 degrees in the E-plane and 76.19 degrees in the H-plane at 62.5 GHz.</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142168035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0