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2014 IEEE International Wireless Symposium (IWS 2014)最新文献

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THz wave interaction with planar structures consisting of multilayer graphene sheets and bianisotropic slabs 太赫兹波与多层石墨烯片和双各向异性平板组成的平面结构的相互作用
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864224
Si-Yi Wang, W. Yin, Liang Zhou, Jing Chen, X. Gu, Liang-Feng Qiu
{"title":"THz wave interaction with planar structures consisting of multilayer graphene sheets and bianisotropic slabs","authors":"Si-Yi Wang, W. Yin, Liang Zhou, Jing Chen, X. Gu, Liang-Feng Qiu","doi":"10.1109/IEEE-IWS.2014.6864224","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864224","url":null,"abstract":"An improved spectral-domain exponential matrix technique is proposed for investigating on the interaction of a THz wave with planar structures consisting of multilayer graphene sheets and bianisotropic slabs. Hybrid effects of different parameters, such as THz wave incident direction, its frequency and polarization, chemical potentials of the graphene sheets and constitutive tensors of the bianisotropic media, on the co- and cross-polarized reflection and transmission coefficients are characterized numerically, with their bandpass properties captured and compared. It is shown that there are more freedoms provided by layered graphene sheets and bianisotropic media at the same time, which can be exploited for effectively controlling the THz wave propagation.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133432805","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: 4
Review of linearization techniques for fiber-wireless systems 光纤无线系统线性化技术综述
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864277
Xiupu Zhang, Dongya Shen, Taijun Liu
{"title":"Review of linearization techniques for fiber-wireless systems","authors":"Xiupu Zhang, Dongya Shen, Taijun Liu","doi":"10.1109/IEEE-IWS.2014.6864277","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864277","url":null,"abstract":"Optical and electrical linearization techniques are reviewed for broadband radio over fiber transmission. The optical linearization includes optical mixed polarization and two-wavelength linearization, and the electrical linearization includes analog pre-distortion circuit. The optical linearization leads to more than 10-dB improvement of spur-free dynamic range (SFDR). The analog pre-distortion circuit that is simple and of low-cost results in about 10 dB improvement of SFDR.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123411605","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: 4
Miniaturised two-layer slit-patch structure for compact decoupling printed antenna array 小型去耦印刷天线阵列的小型化两层缝隙贴片结构
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864191
Qian Li, A. Feresidis
{"title":"Miniaturised two-layer slit-patch structure for compact decoupling printed antenna array","authors":"Qian Li, A. Feresidis","doi":"10.1109/IEEE-IWS.2014.6864191","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864191","url":null,"abstract":"Double-layer miniaturised structures are presented for reducing the mutual coupling between two closely spaced CPW-fed printed monopoles. The proposed structures employ two closely coupled layers, one made of conducting patches and another made of apertures (slits) in a ground plane. They are placed on either side of a very thin supporting dielectric substrate (55μm) with a rotation of 90° between the elements in order to produce maximum coupling. The dimensions of the proposed structures are optimised to produce maximum miniaturisation thereby occupying very little space on a compact ground plane. A microstrip line excitation is initially used for the efficient analysis and design of the structures. Two CPW-fed printed monopoles are subsequently employed to form MIMO system and the mutual coupling reduction is demonstrated. Results obtained in 3D electromagnetic simulation software (CST Microwave studio) are presented.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127994382","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
A simplified belief propagation decoder for polar codes 一种简化的极性码信念传播解码器
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864206
Yingxian Zhang, Qingshuang Zhang, X. Pan, Zhan Ye, C. Gong
{"title":"A simplified belief propagation decoder for polar codes","authors":"Yingxian Zhang, Qingshuang Zhang, X. Pan, Zhan Ye, C. Gong","doi":"10.1109/IEEE-IWS.2014.6864206","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864206","url":null,"abstract":"In this paper, we propose a simplified belief propagation(SBP) decoder for the polar codes, where the update calculation for the messages of the so-called frozen nodes is replaced by setting these nodes' messages by prior probabilities during the BP procedure. Numerical results show that the derived SBP yields almost the same performance as the BP decoders in the literature, while the computational complexity is reduced significantly, which make our SBP more suitable for practical application as compared to the existing BP decoders.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128439975","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: 20
Design and modeling of an on-chip asymmetric tap balun for CMOS millimeter-wave circuits CMOS毫米波电路片上非对称抽头平衡器的设计与建模
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864232
Peng Huang, Y. Chen, Kaizhe Guo, K. Kang
{"title":"Design and modeling of an on-chip asymmetric tap balun for CMOS millimeter-wave circuits","authors":"Peng Huang, Y. Chen, Kaizhe Guo, K. Kang","doi":"10.1109/IEEE-IWS.2014.6864232","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864232","url":null,"abstract":"A systematic method to design a balun for impedance transformation in millimeter-wave (mm-wave) integrated circuit design is presented in this paper. The balun was designed by stacking two top metals and transmission lines, and fabricated by 90-nm RF CMOS processing. In addition, a lumped model of the balun including skin effect and substrate effect has been established. The model shows good agreement with the measurement results up to 65 GHz. The measured insertion loss of the balun is 1.6 dB at 60 GHz and the 1dB bandwidth is extended from 53 GHz to 65 GHz. The simulated phase and amplitude difference are 180.5° and 0.15 dB at 60 GHz, respectively.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129514885","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: 6
A thin and compact high gain planar antenna integrated with a CMRC compact filter 一种薄而紧凑的高增益平面天线，集成了CMRC紧凑滤波器
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864276
S. Yeung, A. García-Lampérez, Tapan Kumar Sarkar, M. Salazar-Palma
{"title":"A thin and compact high gain planar antenna integrated with a CMRC compact filter","authors":"S. Yeung, A. García-Lampérez, Tapan Kumar Sarkar, M. Salazar-Palma","doi":"10.1109/IEEE-IWS.2014.6864276","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864276","url":null,"abstract":"This paper presents a thin and compact high gain planar antenna integrated with a CMRC compact filter. The high gain antenna is a 4 element broadside microstrip array fed by parasitic coupling. The antenna is developed on a thin substrate of 0.762 mm thick. The broadside gain is 11.37 dBi at 5.5 GHz. The CMRC filter has filtered out the higher order modes of the micostrip antenna till 16 GHz. The sizes of the antenna array with and without the CMRC filter are exactly the same. Therefore, the design presented is a promising technique in designing a thin and compact high gain planar antenna with low-noise received.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128985757","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
Substrate-integrated octave-tunable combline bandstop filter with surface mount varactors 带表面贴装变容管的基板集成倍频可调组合带阻滤波器
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864203
A. Anand, Yuhao Liu, X. Liu
{"title":"Substrate-integrated octave-tunable combline bandstop filter with surface mount varactors","authors":"A. Anand, Yuhao Liu, X. Liu","doi":"10.1109/IEEE-IWS.2014.6864203","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864203","url":null,"abstract":"This paper presents an octave-tunable two-pole bandstop filter with tuning range of 0.56-1.18 GHz (2.1:1 tuning ratio). The bandstop filter is designed with two highly loaded combline resonators with surface mounted solid state varactors. Theoretical analysis and modeling along with full wave simulation is presented in agreement with measured data. The measured peak attenuation in the stopband is approximately 27 dB at 1.18 GHz and is approximately 7 dB at 0.56 GHz. However, a minimum attenuation of at least 10 dB is maintained above 0.65 GHz (1.82:1 tuning ratio).","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122165130","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: 20
Reduction of the mutual coupling between aperture coupled microstrip patch antennas using EBG structure 利用EBG结构减小孔径耦合微带贴片天线间的互耦
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864201
Ning Ma, Huiling Zhao
{"title":"Reduction of the mutual coupling between aperture coupled microstrip patch antennas using EBG structure","authors":"Ning Ma, Huiling Zhao","doi":"10.1109/IEEE-IWS.2014.6864201","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864201","url":null,"abstract":"This paper presents a method for reducing surface wave coupling between aperture coupled microstrip antennas by the use of mushroom-like electromagnetic band-gap (EBG) structures. Dispersion diagram of the EBG structures was studied by the FDTD method before the EBG structures were combined with the antennas to reduce the mutual coupling. Convolution perfect matched layer (CPML) and periodic boundary conditions (PBCs) were used in the FDTD method for accurate and efficient computing purpose. Case study shows that 16.4dB reduction of the mutual coupling was achieved at the designed resonant frequency by virtue of only a row of EBG structures, and the average reduction in the working band of the antenna was 7.57 dB. Thus, the method can be considered as a potential solution for mutual coupling reduction in array application.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126928637","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: 17
Scalable modeling of layout parameters in CMOS integrated stacked millimeter wave transformer CMOS集成堆叠式毫米波变压器布局参数的可扩展建模
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864199
Wenjuan Zhang, Guiqiang Zhu, Liguo Sun, F. Lin
{"title":"Scalable modeling of layout parameters in CMOS integrated stacked millimeter wave transformer","authors":"Wenjuan Zhang, Guiqiang Zhu, Liguo Sun, F. Lin","doi":"10.1109/IEEE-IWS.2014.6864199","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864199","url":null,"abstract":"The scalable modeling of CMOS integrated stacked millimeter wave transformer is presented. The model parameters are only related to the layout and process data. So this model is scalable with the two factors. We provide simple and accurate expressions for the self-inductance, mutual coupling inductance, oxide capacitance and the mutual coupling capacitance. High frequency effect and thick metal effect are considered, so the model is accurate at high frequency and can be used at millimeter wave IC design. The model is generated by these equations directly, and no further fitting or optimization is required. The model is verified by 65nm and 40nm CMOS technology transformers. We compare S-parameters, self-inductance of each coil, and coupling coefficient. A very close agreement has been obtained.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126155636","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
A millimeter-wave 0.18-μm BiCMOS sub-nanosecond pulse-generator with extremely low RF leakage 一种毫米波0.18 μm BiCMOS亚纳秒脉冲发生器，具有极低的射频泄漏
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864204
C. Huynh, J. Bae, C. Nguyen
{"title":"A millimeter-wave 0.18-μm BiCMOS sub-nanosecond pulse-generator with extremely low RF leakage","authors":"C. Huynh, J. Bae, C. Nguyen","doi":"10.1109/IEEE-IWS.2014.6864204","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864204","url":null,"abstract":"An ultra-low-leakage RF pulse generator capable of producing very narrow RF pulses with small rising and falling time for short-range high-resolution radar and high-data-rate communication systems is developed using 0.18-μm BiCMOS technology. The RF pulse generator exhibits an extremely-low RF leakage implementing the RF leaking suppression technique, in which the RF leaking signal is cancelled by combining with its replica using an active balun. In addition, the active balun also amplifies the gated RF pulses hence providing gain for the RF pulse generator. A graphical analysis based on the insertion loss and isolation contours, enabling selection of the optimum sizes for transistors in the series-shunt switches, is also presented. From 31 to 37.1 GHz, the designed RF pulse generator exhibits -1.9 dB (loss) to 1.1 dB (gain) and 14.5-30 dB input return loss. The output return loss is higher than 10 dB from 33 to 35.9 GHz. From 30 to 40 GHz, the isolation is higher than 40 dB and, especially at 34 GHz, the isolation reaches 70 dB. The rising and falling times were measured as 136 ps and 70 ps, respectively. Very narrow RF pulses of 200 ps have been generated. The RF pulse generator consumes a 7.3 mA from a 1.8-V power supply and occupies a chip area of 0.225 mm2.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"418 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116012215","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
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