Journal of electromagnetic engineering and science最新文献_第10页

A Wideband Doherty Combiner with Phase Variation Compensation Using LTCC Applicable for High Power Transmission 适用于大功率传输的LTCC相位变化补偿宽带Doherty组合器

IF 2.3 3区工程技术

Journal of electromagnetic engineering and science Pub Date : 2022-09-30 DOI: 10.26866/jees.2022.5.r.121

Youna Jang, K. Jeong, Jiwon Kim, D. Lee, D. Ahn

引用次数: 1

Spatial Delay Line Canceler-Based Sidelobe Blanking for Low Radar-Cross-Section Target 基于空间延迟线对消器的低雷达截面目标旁瓣消隐

IF 2.3 3区工程技术

Journal of electromagnetic engineering and science Pub Date : 2022-09-30 DOI: 10.26866/jees.2022.5.r.126

Younhui Jang, Donghyeon Cho

引用次数: 0

A Neural Network-Based Microwave Imaging Method for Object Localization 一种基于神经网络的微波成像目标定位方法

IF 2.3 3区工程技术

Journal of electromagnetic engineering and science Pub Date : 2022-09-30 DOI: 10.26866/jees.2022.5.r.125

Wonhyung Son, W. Park, Seong‐Ho Son

引用次数: 0

Classification of Transmission Modes through a Narrow Slot in a Thick Conducting Screen 厚导电屏窄槽传输模式的分类

IF 2.3 3区工程技术

Journal of electromagnetic engineering and science Pub Date : 2022-07-31 DOI: 10.26866/jees.2022.4.r.117

K. Kim, Gyeong-Sik Park, G. Min, Young-Ki Cho

{"title":"Classification of Transmission Modes through a Narrow Slot in a Thick Conducting Screen","authors":"K. Kim, Gyeong-Sik Park, G. Min, Young-Ki Cho","doi":"10.26866/jees.2022.4.r.117","DOIUrl":"https://doi.org/10.26866/jees.2022.4.r.117","url":null,"abstract":"This paper examines electromagnetic energy transmission through a narrow slot in a thick conducting plate when a plane wave is incident to the slot. The slot in the thick plate creates a waveguide structure. From the perspective of cutoff frequency, the transmission characteristics are classified into three modes. The transmission cavity resonance (TCR) mode in the range above the cutoff depends on the plate thickness, and peak transmission cross-sections (TCSs) appear periodically along the plate thickness, known as Fabry-Perot resonance. The near-cutoff resonance transmission (NCRT) mode depends on the slot length and plate thickness, and the maximum TCS appears only once as a slot length resonance (or transverse resonance). The peak TCS for the NCRT mode occurs with a thin plate thickness, which produces slot length resonance. The non-transmission cavity (NTC) mode is a non-transmission and non-resonance mode and is not propagated. All the maximum TCSs for the TCR and NCRT modes occur in parallel resonance. The analysis results show that the classification of the three transmission modes through the thick plate slot is effectively explained by the TCS and aperture impedance.","PeriodicalId":15662,"journal":{"name":"Journal of electromagnetic engineering and science","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41683863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Iterative Method for Modeling a Wireless Power Transfer System with Nonlinearity of Voltage Rectifier 电压整流器非线性无线输电系统的迭代建模方法

IF 2.3 3区工程技术

Journal of electromagnetic engineering and science Pub Date : 2022-07-31 DOI: 10.26866/jees.2022.4.r.118

Eakhwan Song, Jangyong Ahn, Jiseong Kim

引用次数: 0

Three-Dimensional Near-Field to Far-Field Transformation for Radar Cross Section Estimation of Elongated Targets via Subdimensional Hybrid Conversion 三维近场到远场变换用于细长目标雷达截面的亚维混合转换估计

IF 2.3 3区工程技术

Journal of electromagnetic engineering and science Pub Date : 2022-07-31 DOI: 10.26866/jees.2022.4.r.116

Jeong-Kyu Kim, Hyun-Sung Tae, Min-Gyeong Seo, Ho-Min Park

{"title":"Three-Dimensional Near-Field to Far-Field Transformation for Radar Cross Section Estimation of Elongated Targets via Subdimensional Hybrid Conversion","authors":"Jeong-Kyu Kim, Hyun-Sung Tae, Min-Gyeong Seo, Ho-Min Park","doi":"10.26866/jees.2022.4.r.116","DOIUrl":"https://doi.org/10.26866/jees.2022.4.r.116","url":null,"abstract":"Image-based (IB) near-field to far-field transformation (NFFFT) is a useful method for the valid prediction of radar cross sections (RCSs) from short-range monostatic measurements. Many previous studies on the IB NFFFT algorithm have been limited to two-dimensional (2D) measurement cases. In this work, a subdimensional hybrid conversion approach is proposed as a relevant three-dimensional (3D) NFFFT method consisting of the following procedures. First, the spherical-wave information collected through 3D scanning is converted to a cylindrical waveform by applying the 2D circular NFFFT (CNFFFT) method to every vertical subplane (r-θ plane). Then, a horizontal far-field radar image on the x-y plane and an RCS pattern are extracted through direct integration of a 2D focusing operator modified to compensate for a magnitude error through distance approximation during the CNFFFT procedure. The results of a comparative study with direct integration of a 3D focusing operator are presented to show the validity and performance of the proposed method.","PeriodicalId":15662,"journal":{"name":"Journal of electromagnetic engineering and science","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46494668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient Finite-Difference Time-Domain Modeling of Time-Varying Dusty Plasma 时变尘埃等离子体的有效时域有限差分建模

IF 2.3 3区工程技术

Journal of electromagnetic engineering and science Pub Date : 2022-07-31 DOI: 10.26866/jees.2022.4.r.115

Yong-Jin Kim, Jeahoon Cho, Kyung‐Young Jung

引用次数: 1

A Miniaturized Implantable Antenna for Wireless Power Transfer and Communication in Biomedical Applications 生物医学应用中用于无线电力传输和通信的微型植入式天线

IF 2.3 3区工程技术

Journal of electromagnetic engineering and science Pub Date : 2022-07-31 DOI: 10.26866/jees.2022.4.r.107

Lam Vu Tung, C. Seo

引用次数: 7

Substrate Integrated Waveguide Quasi-Elliptic Filter with Arbitrary Termination Impedances 任意端阻抗基片集成波导准椭圆滤波器

IF 2.3 3区工程技术

Journal of electromagnetic engineering and science Pub Date : 2022-07-31 DOI: 10.26866/jees.2022.4.r.111

Phanam Pech, P. Kim, G. Chaudhary, Y. Jeong

{"title":"Substrate Integrated Waveguide Quasi-Elliptic Filter with Arbitrary Termination Impedances","authors":"Phanam Pech, P. Kim, G. Chaudhary, Y. Jeong","doi":"10.26866/jees.2022.4.r.111","DOIUrl":"https://doi.org/10.26866/jees.2022.4.r.111","url":null,"abstract":"This paper presents a quasi-elliptic filter (QEF) with arbitrary termination impedances (ATI). The proposed QEF is designed by adding cross-coupling between the first and last resonators of an ATI bandpass filter (BPF) with the Chebyshev response. The proposed QEFs with ATI can be designed in even-order resonators and the location of the pair transmission zeros (TZs) is controllable. To prove the validity of the proposed design, the fourth-order QEFs with ATI were implemented on a single-layer substrate-integrated waveguide (SIW) cavity at a center frequency (f0) of 10 GHz with the pair TZs at 10 ± 1.4 GHz. These SIW QEFs with ATI improve frequency selectivity and effectively suppress the out-of-band signal with high power handling. The measured maximum insertion loss (|S21|) and minimum return loss (|S11|) of the SIW QEF with unequal real-to-real ATI are 0.93 dB and 17.4 dB, respectively, in the passband. Similarly, the maximum |S21| and minimum |SS11| of the SIW QEF with complex-to-real ATI are 1.2 dB and 18 dB, respectively.yer substrate-integrated waveguide (SIW) cavity at a center frequency (","PeriodicalId":15662,"journal":{"name":"Journal of electromagnetic engineering and science","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42783914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A Low-Profile Quasi-Loop Magneto-Electric Dipole Antenna Featuring a Wide Bandwidth and Circular Polarization for 5G mmWave Device-to-Device Communication 面向5G毫米波设备对设备通信的宽带圆极化低轮廓准环路磁电偶极子天线

IF 2.3 3区工程技术

Journal of electromagnetic engineering and science Pub Date : 2022-07-31 DOI: 10.26866/jees.2022.4.r.110

Shahanawaz Kamal, M. F. Ain, U. Ullah, A. Mohammed, R. Hussin, M. Omar, Fathul Najmi, Z. Ahmad, Mohd Fariz Ab Rahman, M. N. Mahmud, M. Othman, J. J. Mohamed

{"title":"A Low-Profile Quasi-Loop Magneto-Electric Dipole Antenna Featuring a Wide Bandwidth and Circular Polarization for 5G mmWave Device-to-Device Communication","authors":"Shahanawaz Kamal, M. F. Ain, U. Ullah, A. Mohammed, R. Hussin, M. Omar, Fathul Najmi, Z. Ahmad, Mohd Fariz Ab Rahman, M. N. Mahmud, M. Othman, J. J. Mohamed","doi":"10.26866/jees.2022.4.r.110","DOIUrl":"https://doi.org/10.26866/jees.2022.4.r.110","url":null,"abstract":"The deployment of the millimeter (mmWave) frequency spectrum by fifth-generation (5G) device-to-device (D2D) wireless networks is anticipated to meet the growing demands for increased capacity. The antenna is regarded of as an important determinant that guarantees the maximum performance of wireless communication. This paper presents a low-profile magneto-electric (ME) dipole antenna for 5G mmWave D2D communication. A single-element quasi-loop radiator was designed to excite horizontal polarization, and a coaxial probe was used to produce vertical polarization. Subsequently, the structure of the radiator was transformed into a two-element quasi-loop antenna to achieve an omnidirectional radiation pattern with relatively enhanced gain. A coaxially fed T-junction microstrip element was implemented to equally distribute the signal between the two quasi-loop radiators and attain proper impedance matching. Furthermore, a pair of shorting pins was introduced into the two-element design to maintain the circularly polarized (CP) radiation. The finest values of the axial ratio and |S11| were derived by rigorously optimizing all the geometry parameters. Both single-element and two-element quasiloop antennas were fabricated and characterized experimentally on the air substrate. The advantage of avoiding a physical substrate is to realize a wide bandwidth, circumvent dielectric losses, and ascertain the maximum gain. The measured and simulated results agree thoroughly with each other. Stable in-band CP radiation were accomplished, thus confirming an appropriate field vector combination from the coaxial probe and the radiator. The finalized antenna engaged an area of ~7.6λ20 for operation at 23.9–30.0 GHz with an axial ratio <3 dB, radiation efficiency ~80%, and gain >5 dBic.","PeriodicalId":15662,"journal":{"name":"Journal of electromagnetic engineering and science","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44192199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4