Electronics Letters最新文献_第7页

Transmission design for ISAC-WPT backscatter RFID systems ISAC-WPT 后向散射 RFID 系统的传输设计

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2024-10-03 DOI: 10.1049/ell2.70051

Yi Wang, Junlei Zhi, Shaochuan Yang, Hui Guo

引用次数: 0

A 10 MHz-BW 85 dB-SNDR 4th-order sturdy MASH 2-0 noise shaping SAR ADC with 2nd-order gain-error-shaping technique 采用二阶增益误差整形技术的 10 MHz-BW 85 dB-SNDR 四阶坚固 MASH 2-0 噪声整形 SAR ADC

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2024-10-02 DOI: 10.1049/ell2.70004

Lizhen Zhang, Jianhui Wu

{"title":"A 10 MHz-BW 85 dB-SNDR 4th-order sturdy MASH 2-0 noise shaping SAR ADC with 2nd-order gain-error-shaping technique","authors":"Lizhen Zhang, Jianhui Wu","doi":"10.1049/ell2.70004","DOIUrl":"https://doi.org/10.1049/ell2.70004","url":null,"abstract":"The multi-stage noise shaping (MASH) ΣΔ ADC has a good potential to achieve high-order noise shaping (NS) and high resolution. However, it suffers from quantization noise leakage caused by the mismatch between the analogue NS filter and the digital cancellation filter, which greatly degrades the ADC performance. The sturdy MASH topology of the ΣΔ ADC can solve the leakage issue, but it cannot be implemented using the NS SAR ADC due to structural limitations. This paper proposes a sturdy MASH 2-0 NS SAR to solve the noise leakage issue. The 4th-order NS is achieved by only using a 2-0 topology, which is hardware efficient. Instead of eliminating the first-stage quantization error, the proposed sturdy MASH 2-0 NS SAR shapes it, achieving better robustness to PVT variables. Furthermore, owing to the first-stage 2nd-order NS capability, the impairments of the residue amplifier, including the gain error and nonlinearity, are 2nd-order shaped. The proposed 4th-order sturdy MASH 2-0 NS SAR is implemented in a 28 nm CMOS process, which achieves a SNDR of 85.6 dB and a SFDR of 101.3 dB with 10 MHz BW at OSR of 10, resulting in a Schreier FoM of 178.8 dB/179.4 dB (in SNDR/DR) with power consumption of 4.8 mW.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"60 19","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142404232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A low-profile and wide-beamwidth microstrip patch antenna using parasitic patch elements 使用寄生贴片元件的低剖面宽波束宽度微带贴片天线

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2024-10-02 DOI: 10.1049/ell2.70046

Maodudul Hasan, Masaya Tamura

{"title":"A low-profile and wide-beamwidth microstrip patch antenna using parasitic patch elements","authors":"Maodudul Hasan, Masaya Tamura","doi":"10.1049/ell2.70046","DOIUrl":"https://doi.org/10.1049/ell2.70046","url":null,"abstract":"This paper presents a low-profile patch antenna with dual-axis wide-beam characteristics. The antenna includes a microstrip patch antenna and four parasitic patch elements. The study demonstrates that both the E-plane and H-plane beams can be extended by strategically placing these parasitic patches. The length and distance of these parasitic patch elements play a crucial role in achieving the desired wide-beam characteristics. A prototype antenna operating at 5.8 GHz is fabricated and measured in an anechoic chamber to validate the concept and design parameters. The measured results confirm the extension of half-power beamwidth in the E-plane to 123<math>\u0000 <semantics>\u0000 <msup>\u0000 <mrow></mrow>\u0000 <mo>∘</mo>\u0000 </msup>\u0000 <annotation>$^{circ }$</annotation>\u0000 </semantics></math> (133%) and in the H-plane to 120<math>\u0000 <semantics>\u0000 <msup>\u0000 <mrow></mrow>\u0000 <mo>∘</mo>\u0000 </msup>\u0000 <annotation>$^{circ }$</annotation>\u0000 </semantics></math> (153%).","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"60 19","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70046","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142404230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An efficient multi-probe enabled midfield over-the-air test method for 5G base station antenna pattern reconstruction 用于 5G 基站天线图案重构的高效多探针中场空中测试方法

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2024-09-27 DOI: 10.1049/ell2.13303

Xudong An, Yiwen Wang, Qinjuan Zhang, Weimin Wang, Yuanan Liu

{"title":"An efficient multi-probe enabled midfield over-the-air test method for 5G base station antenna pattern reconstruction","authors":"Xudong An, Yiwen Wang, Qinjuan Zhang, Weimin Wang, Yuanan Liu","doi":"10.1049/ell2.13303","DOIUrl":"https://doi.org/10.1049/ell2.13303","url":null,"abstract":"With the accelerated deployment of 5G massive multi-input multi-output (MIMO)-structured base stations (BSs), accurate and efficient testing of massive MIMO arrays is essential to ensure that the 5G massive MIMO antenna array can perform as expected. The increasing trend of both antenna element and array physical size makes massive MIMO antenna pattern measurement in the direct-far-field OTA environment unrealistic due to the signal attenuation, long measurement time, and ultra-high test system construction cost. Therefore, the necessity of a compact, efficient, low-complex, yet accurate OTA test method is evident, especially for 5G massive MIMO BS arrays. This paper proposes a novel multi-probe-enabled midfield (MF) OTA test method for 5G massive MIMO devices in compact measurement settings where antenna pattern measurement can be efficiently performed. The detailed theoretical analysis for the 5G massive MIMO array MF antenna pattern reconstruction method is presented, and the simulated validation results based on the typical 5G BS antenna arrays are provided and analysed, which demonstrate the effectiveness of the proposed MF OTA test method and can provide insights into the radio frequency parametric measurement for 5G massive MIMO devices.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"60 19","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.13303","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142359912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Complementary extended state observer-based model-free sliding mode control for a PMSM in cathode copper production 电解铜生产中基于互补扩展状态观测器的 PMSM 无模型滑模控制

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2024-09-27 DOI: 10.1049/ell2.70044

Peng Gao, Liandi Fang, Huihui Pan

{"title":"Complementary extended state observer-based model-free sliding mode control for a PMSM in cathode copper production","authors":"Peng Gao, Liandi Fang, Huihui Pan","doi":"10.1049/ell2.70044","DOIUrl":"https://doi.org/10.1049/ell2.70044","url":null,"abstract":"This study introduces a model-free sliding mode control scheme based on a complementary extended state observer (CESO) for a permanent magnet synchronous motor (PMSM) in cathode copper production. First, an ultra-local model of the PMSM is proposed. Compared with the existing ultra-local model, the ultra-local model proposed in this study divides the disturbances into periodic and aperiodic perturbations. Furthermore, based on the proposed ultra-local model, a CESO is proposed. Compared to the linear extended state observer (LESO) and the non-linear extended state observer (NLESO), the proposed CESO combines the advantages of the LESO and the NLESO. The proposed CESO exhibits reduced disturbance estimation errors and greater resilience to significant periodic and minor aperiodic disturbances. By leveraging the ultra-local model, a novel combined control strategy is devised, utilizing the CESO and a model-free sliding mode control. The stability of the proposed control scheme has been verified through the Lyapunov stability theorem and the Hurwitz stability criterion. Subsequently, comparative simulations on disturbance rejection are conducted under periodic and aperiodic disturbances, illustrating the efficacy of the proposed control approach.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"60 19","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70044","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spectrum distribution-based blind calibration method of mismatches for time-interleaved ADCs 基于频谱分布的时间交错 ADC 失配盲校准方法

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2024-09-27 DOI: 10.1049/ell2.70030

He Zhi, Hui Wang, Minghao Jia, Huanqing Xie, Jianhui Wu

引用次数: 0

A simulation algorithm for SAR echoes with targets in non-uniform backgrounds 非均匀背景中目标的合成孔径雷达回波模拟算法

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2024-09-25 DOI: 10.1049/ell2.70012

Zhiyong Song, Yongqiang Zhang, Chujun Lan

引用次数: 0

A high-performance asynchronous readout circuit with cascade function for a neural recording micro-electrode array 用于神经记录微电极阵列的具有级联功能的高性能异步读出电路

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2024-09-25 DOI: 10.1049/ell2.70028

Jiaqi Feng, Yujie Cai, Leilei Huang

{"title":"A high-performance asynchronous readout circuit with cascade function for a neural recording micro-electrode array","authors":"Jiaqi Feng, Yujie Cai, Leilei Huang","doi":"10.1049/ell2.70028","DOIUrl":"https://doi.org/10.1049/ell2.70028","url":null,"abstract":"The data-driven machine learning technology used for neural decoding emphasizes the requirements of in vivo and in vitro neural signal acquisition with high spatial and temporal resolution. However, micro-electrode arrays (MEAs) that simultaneously achieve high spatial and temporal resolution neural signal acquisition are not yet available. Meanwhile, the high data bandwidth of large-scale MEA brings challenges in power consumption, data transmission, storage, and neural signal processing. This research aims to improve the spatial and temporal resolution of MEA, reduce the cost and time of large-scale MEA customization through cascading, and reduce the bandwidth of large-scale MEA through spike compression. Firstly, based on in-pixel spike detection, a row-based neural spike readout mechanism and related array circuit to improve the neural spike readout performance and temporal resolution of neural signal acquisition is proposed. To further enhance the spatial resolution and reduce the risk of large-scale MEA fabrication, the cascading capability of the readout circuit is explored. Lastly, spatial correlation-based neural spike encoding is proposed to reduce the data bandwidth, achieving a 5.2× compression rate. This is a study on implementing large-scale MEA through cascaded readout circuits and novel study to utilize the spatial correlation between detected neural spikes for further compression.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"60 18","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142316872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Path planning algorithm design using particle swarms optimization and artificial potential fields 利用粒子群优化和人工势场设计路径规划算法

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2024-09-25 DOI: 10.1049/ell2.70038

Bhavyansh Mishra, Hakki Erhan Sevil

引用次数: 0

Multiple-nodes based cooperative jamming detection for reactive follower jamming in ISAC 基于多节点的合作干扰检测，用于 ISAC 中的反应式从属干扰

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2024-09-25 DOI: 10.1049/ell2.70009

Cheng Li, Yuxin Shi, Xinjin Lu, Junjie Wang, Yonggang Zhu, Ming Xiao

{"title":"Multiple-nodes based cooperative jamming detection for reactive follower jamming in ISAC","authors":"Cheng Li, Yuxin Shi, Xinjin Lu, Junjie Wang, Yonggang Zhu, Ming Xiao","doi":"10.1049/ell2.70009","DOIUrl":"https://doi.org/10.1049/ell2.70009","url":null,"abstract":"Accurate jamming detection is a prerequisite and important support for efficient anti-jamming communication in integrated sensing and communications. In recent years, the reactive follower jamming, characterized by the high jamming efficiency and the difficulty of detection, is seen as the main opponent for frequency hopping spread spectrum communication, which poses a threat to the reliability of wireless communication. Based on the background, a multiple-nodes based cooperative jamming detection scheme is proposed for accurately detecting the reactive follower jamming. Specifically, the secondary nodes send the average energy of the suspected attacked symbols to the primary user as the uplink data in each detection period, and then the detection result is provided by the detection threshold. The optimal detection threshold is derived for the primary user according to the uplink data and channel conditions. In addition, the theoretical probability of detection under the optimal threshold is derived, and the complexity of the scheme is analysed. Simulation results show that the proposed multiple-nodes based cooperative jamming detection scheme for reactive follower jamming can effectively improve the probability of detection.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"60 18","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142316873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0