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2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition最新文献

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Printed wideband antenna for LTE/GSM/UMTS WWAN wireless USB dongle applications 用于LTE/GSM/UMTS WWAN无线USB加密狗应用的印刷宽带天线
2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition Pub Date : 2012-10-04 DOI: 10.1109/IWEM.2012.6320356
Siwen Sun, Y. Ban, Chuan-Qiu Lei, J. Li
{"title":"Printed wideband antenna for LTE/GSM/UMTS WWAN wireless USB dongle applications","authors":"Siwen Sun, Y. Ban, Chuan-Qiu Lei, J. Li","doi":"10.1109/IWEM.2012.6320356","DOIUrl":"https://doi.org/10.1109/IWEM.2012.6320356","url":null,"abstract":"This paper proposes a planar printed ultra-wideband antenna for eight-band LTE/GSM/UMTS WWAN wireless USB dongle applications. An inductive shorted strip with a chip capacitor loaded is employed in order to improve the characteristics of small-size terminal antennas which usually have a narrow band over the LTE700/GSM850/900 (698-960 MHz) and DCS1800/PCS1900 /UMTS2100/LTE2300/2500 (1710-2690 MHz) operation. Easily printed on a 0.8-mm thick FR4 dielectric substrate of size 20×70 mm2, the proposed antenna structure occupies a compact size of 20×19 mm2. Then the proposed design can be attached to laptop computer by the USB interface. The proposed antenna is fabricated and tested, and good radiation performances of the fabricated antenna are obtained.","PeriodicalId":314019,"journal":{"name":"2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127540876","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: 5
Application of novel left-handed metamaterial structure in antenna cover 新型左旋超材料结构在天线罩中的应用
2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition Pub Date : 2012-10-04 DOI: 10.1109/IWEM.2012.6320357
Zhong-qing Wang, Bao Li, Li-Dan Peng
{"title":"Application of novel left-handed metamaterial structure in antenna cover","authors":"Zhong-qing Wang, Bao Li, Li-Dan Peng","doi":"10.1109/IWEM.2012.6320357","DOIUrl":"https://doi.org/10.1109/IWEM.2012.6320357","url":null,"abstract":"A novel left-handed metamaterials (LH MTM) is designed for antenna cover. Simulated by HFSS and MATLAB, it is shown that this LH MTM structure has multitude frequency bands (2-3.7GHz, 3.8-4.9GHz, 5-6.3GH and 7.2-10GHz) with the characteristics of negative permittivity and negative permeability. When the LH MTM cover is located above the antenna, the gains of antenna increase obviously and operating frequencies are shifted downwards slightly.","PeriodicalId":314019,"journal":{"name":"2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130989895","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: 2
Modified half U-slot shorted patch antenna 改进的半u槽短接贴片天线
2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition Pub Date : 2012-10-04 DOI: 10.1109/IWEM.2012.6320330
H. Lai, K. Mak, K. Luk
{"title":"Modified half U-slot shorted patch antenna","authors":"H. Lai, K. Mak, K. Luk","doi":"10.1109/IWEM.2012.6320330","DOIUrl":"https://doi.org/10.1109/IWEM.2012.6320330","url":null,"abstract":"This paper presented a small wideband patch antenna with a modified half U-slot and a shorting pin. This small patch antenna can achieve an impedance bandwidth of around 40% (S11<; -10dB) by introducing a modified U-slot and a shorting pin. The antenna size is electrically small, which are 0.012λ02 (240mm2). This small antenna has a very stable radiation pattern across its operating bandwidth, and has a peak gain of 2dBi.","PeriodicalId":314019,"journal":{"name":"2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131901173","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
Design and realization of a printed microstrip log-periodic antenna 一种印刷微带对数周期天线的设计与实现
2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition Pub Date : 2012-10-04 DOI: 10.1109/IWEM.2012.6320352
Xiao Ding, Bing-Zhong Wang, R. Zang
{"title":"Design and realization of a printed microstrip log-periodic antenna","authors":"Xiao Ding, Bing-Zhong Wang, R. Zang","doi":"10.1109/IWEM.2012.6320352","DOIUrl":"https://doi.org/10.1109/IWEM.2012.6320352","url":null,"abstract":"This paper describes the design and realization of an improved printed microstrip log-periodic antenna (MLPA). The MLPA contains 8 pairs of printed dipole elements, a pair of printed parallel collection lines, a coaxial balun and a series of matching sections to connect the dipole elements and collection lines. In order to feed the collection lines,the coaxial feeder runs along one of the collection line and arrives at the feeding port, where the outer conductor of the coaxial feeder is connected to this collection line and the inner one is connected to another collection line. Test results shows that, the antenna can operate at S/C band with voltage standing-wave ratios (VSWRs) less than 2 and high directional radiation patterns.","PeriodicalId":314019,"journal":{"name":"2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115758356","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: 9
Novel UWB bandpass filter using multiple-mode resonator units in series 采用串联多模谐振器单元的新型超宽带带通滤波器
2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition Pub Date : 2012-10-04 DOI: 10.1109/IWEM.2012.6320373
Lang Wang, Han-Li Liu, J. L. Li
{"title":"Novel UWB bandpass filter using multiple-mode resonator units in series","authors":"Lang Wang, Han-Li Liu, J. L. Li","doi":"10.1109/IWEM.2012.6320373","DOIUrl":"https://doi.org/10.1109/IWEM.2012.6320373","url":null,"abstract":"A novel ultra-wideband (UWB) bandpass filter (BPF) using three multi-mode resonator (MMR) units in series is proposed in this paper. Each of the units is a resonator made by attaching a ring open stub in shunt to a high impedance microstrip line. The units form a MMR to improve the selectivity. By properly adjusting the radius of the circles of the ring stubs and the length of the coupling segments, the resonant modes of this units can be allocated within the 3.1-to-10.6 GHz UWB band while the upper-stopband is also wide. Simulation results are achieved and analyzed. The filter shows good in-band and out-band performance and sharp selectivity.","PeriodicalId":314019,"journal":{"name":"2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127456147","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: 2
A QPSK modulation scheme based on four dimensional antenna arrays 一种基于四维天线阵列的QPSK调制方案
2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition Pub Date : 2012-10-04 DOI: 10.1109/IWEM.2012.6320362
Ruilin Yao, Shiwen Yang, Q. Zhu, Z. Nie
{"title":"A QPSK modulation scheme based on four dimensional antenna arrays","authors":"Ruilin Yao, Shiwen Yang, Q. Zhu, Z. Nie","doi":"10.1109/IWEM.2012.6320362","DOIUrl":"https://doi.org/10.1109/IWEM.2012.6320362","url":null,"abstract":"A novel direction-dependent QPSK modulation technique based on four dimensional (4D) antenna arrays is proposed in this paper. The basic principle is that the antenna elements of different positions are used to transmit the in-phase and quadrature baseband signals. In this way, the QPSK modulation is formed in space and dependent on directions. Simulated results show that this technique offers a much narrower BER beam width and is suitable for physical-layer secure wireless communication.","PeriodicalId":314019,"journal":{"name":"2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130065228","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: 1
Numerical simulation of Linear frequency modulation signal in Logging while drilling 随钻测井线性调频信号的数值模拟
2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition Pub Date : 2012-10-04 DOI: 10.1109/IWEM.2012.6320377
K. Zhu, Z. Nie, Xiangyang Sun
{"title":"Numerical simulation of Linear frequency modulation signal in Logging while drilling","authors":"K. Zhu, Z. Nie, Xiangyang Sun","doi":"10.1109/IWEM.2012.6320377","DOIUrl":"https://doi.org/10.1109/IWEM.2012.6320377","url":null,"abstract":"In this paper, the LFM signal as transmitted signal under noisy environment in LWD has been modeled numerically by using NMM and FFT. Based on the frequency spectrum of LFM signal, the NMM and FFT are used to calculate the received signals of receiving coils. Then, matched filter realize pulse compression of the received signals, and the peak signal to noise ratio (PSNR) is improved significantly. Well logging curves are obtained by making use of the amplitude ratio and the phase difference of two receiving coils in the peak point. The simulation results indicate that this method can strongly improve the SNR, especially for the correlated noise which is hardly restrained in single carrier signal.","PeriodicalId":314019,"journal":{"name":"2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122195421","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: 1
Efficient Inductive Power Transfer for biomedical applications 生物医学应用的高效感应功率传输
2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition Pub Date : 2012-10-04 DOI: 10.1109/IWEM.2012.6320334
Yong-xin Guo, R. Jegadeesan
{"title":"Efficient Inductive Power Transfer for biomedical applications","authors":"Yong-xin Guo, R. Jegadeesan","doi":"10.1109/IWEM.2012.6320334","DOIUrl":"https://doi.org/10.1109/IWEM.2012.6320334","url":null,"abstract":"Wireless Power Transfer (WPT) using inductive coupling is an essential method to power biomedical implants as it provides a hassle-free alternative to batteries and dangling wires. The Power Transfer Efficiency (PTE) of the inductively coupled link is a key quality metric using which the link is evaluated. In this paper, we address the various different methods to improve the PTE of inductively coupled links and discuss the advantages and disadvantages of the different approaches in WPT links.","PeriodicalId":314019,"journal":{"name":"2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition","volume":"68 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131470992","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: 1
Design of an optical fibre system for time-domain impulse signal transmission 时域脉冲信号传输光纤系统的设计
2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition Pub Date : 2012-10-04 DOI: 10.1109/IWEM.2012.6320368
L. Peng, Jin Pan, Deqiang Yang
{"title":"Design of an optical fibre system for time-domain impulse signal transmission","authors":"L. Peng, Jin Pan, Deqiang Yang","doi":"10.1109/IWEM.2012.6320368","DOIUrl":"https://doi.org/10.1109/IWEM.2012.6320368","url":null,"abstract":"Due to the sharp pulse generated by the time-domain impulse radar has widely instantaneous bandwidth, it is very difficult to achieve undistorted, low-loss and dispersion-free transmission by coaxial cable. With the technique of direct modulation and automatic power control of the analog optical transceiver module, a transmission system of the wideband RF signals over optical fibre is proposed in this subject. Test of the Gaussian pulses shows that, the impulse waveform has good shape retention.","PeriodicalId":314019,"journal":{"name":"2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131473648","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
Investigation of nanoelectromagnetics problems using the multidomain legendre pseudospectral time-domain method 用多域勒让德伪谱时域方法研究纳米电磁学问题
2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition Pub Date : 2012-10-04 DOI: 10.1109/IWEM.2012.6320327
Hung-chun Chang, Shih-yung Chung, Chih-Yu Wang, C. Teng, Juen-Kai Wang, Chung-Ping Chen
{"title":"Investigation of nanoelectromagnetics problems using the multidomain legendre pseudospectral time-domain method","authors":"Hung-chun Chang, Shih-yung Chung, Chih-Yu Wang, C. Teng, Juen-Kai Wang, Chung-Ping Chen","doi":"10.1109/IWEM.2012.6320327","DOIUrl":"https://doi.org/10.1109/IWEM.2012.6320327","url":null,"abstract":"Nanoelectromagnetics problems in nanophotonics and plasmonics in the optical-wavelength regime are concerned in this paper. Very often such problems demand more accurate electromagnetic computation and analysis. A multidomain Legendre pseudospectral time-domain (PSTD) method recently developed and demonstrated to provide high numerical accuracy is utilized to study light interaction with sub-wavelength three-dimensional plasmonic structures and associated plasmonic resonances. With the multidomain technique, the simulation region is partitioned into curvilinear hexahedral subdomains with better fitting to the structural shapes and material interfaces so as to achieve high-accuracy near-field calculations. Light scattering by multiple plasmonic nanospheres and light transmission through a metallic thin film perforated with periodic apertures are investigated with the PSTD analysis.","PeriodicalId":314019,"journal":{"name":"2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130373199","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
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