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2015 IEEE International Wireless Symposium (IWS 2015)最新文献

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W-band low power sub-harmonic mixer IC in 130-nm SiGe BiCMOS 130纳米SiGe BiCMOS w波段低功率次谐波混频器集成电路
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-07-22 DOI: 10.1109/IEEE-IWS.2015.7164557
Xin Yang, Zheng Sun, T. Shibata, T. Yoshimasu
{"title":"W-band low power sub-harmonic mixer IC in 130-nm SiGe BiCMOS","authors":"Xin Yang, Zheng Sun, T. Shibata, T. Yoshimasu","doi":"10.1109/IEEE-IWS.2015.7164557","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164557","url":null,"abstract":"This paper presents a sub-harmonic mixer IC design for W-band automotive radar applications in 130-nm SiGe BiCMOS technology. The mixer makes use of a Common Emitter Common Collector Transistor Pair (CECCTP) structure mixer core with a Marchand balun for the W-band on-wafer measurement. The balun achieves a measured amplitude imbalanced of less than 0.9 dB and a phase imbalance of less than 2.5 degrees in a frequency range from 20 GHz to 66 GHz. The sub-harmonic mixer IC exhibits a conversion gain of 3.8 dB at 80 GHz with an LO power of 0 dBm at 39.5 GHz. And the mixer core only consumes 0.42 mA with a supply voltage of 2.5 V.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124002747","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: 3
A design method for concurrent tri-band Doherty Power Amplifier 并发三频带多尔蒂功率放大器的设计方法
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-03-31 DOI: 10.1109/IEEE-IWS.2015.7164633
F. Costanzo, R. Giofré, L. Piazzon, F. Giannini, P. Colantonio, M. V. Deepak Nair
{"title":"A design method for concurrent tri-band Doherty Power Amplifier","authors":"F. Costanzo, R. Giofré, L. Piazzon, F. Giannini, P. Colantonio, M. V. Deepak Nair","doi":"10.1109/IEEE-IWS.2015.7164633","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164633","url":null,"abstract":"This paper presents the design of a concurrent tri-band Doherty Power Amplifier (DPA) for 1.84 GHz, 2.14 GHz and 2.65 GHz frequency bands. The frequency response around each operating band is maximally flattened adopting a new design strategy. The DPA is based on hybrid technology using two 8 W GaN HEMT as active devices. The results show a peak of drain efficiency higher than 60 % in each operating band and over 45 % at the corresponding 6 dB output power back-off (OBO). Finally, more than 200 MHz of bandwidth is achieved around each operating frequency.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"31 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120854048","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
Improved compact, wideband, low-dispersion, metamaterial-based MEMS phase shifters 改进的紧凑，宽带，低色散，基于超材料的MEMS移相器
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-03-30 DOI: 10.1109/IEEE-IWS.2015.7164636
V. Gholizadeh, Y. Ning, X. Luo, C. Palego, J. Hwang, C. Goldsmith
{"title":"Improved compact, wideband, low-dispersion, metamaterial-based MEMS phase shifters","authors":"V. Gholizadeh, Y. Ning, X. Luo, C. Palego, J. Hwang, C. Goldsmith","doi":"10.1109/IEEE-IWS.2015.7164636","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164636","url":null,"abstract":"This paper reports compact, wideband, low-dispersion, metamaterial-based phase shifters with lower loss, wider bandwidth, and fewer MEMS switches than previous designs. The present design is based on a novel 90° unit cell which uses two synchronized MEMS switches that are actuated and unactuated in unison for the through and delayed states, respectively. By combining three of these 90° unit cells with a 45° unit cell of previous design, a 3-bit phase shifter is designed to have smaller than 8 mm2 footprint, less than 20° root-mean-square phase error, less than 2.0 dB insertion loss, and higher than 17 dB return loss between 22 GHz and 27 GHz.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133239944","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
A spectrum map based dynamic spectrum management framework 基于频谱图的动态频谱管理框架
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-03-01 DOI: 10.1109/IEEE-IWS.2015.7164594
Jianzhao Zhang, Yong Chen, Hang-sheng Zhao, Long Cao, Hao Wu
{"title":"A spectrum map based dynamic spectrum management framework","authors":"Jianzhao Zhang, Yong Chen, Hang-sheng Zhao, Long Cao, Hao Wu","doi":"10.1109/IEEE-IWS.2015.7164594","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164594","url":null,"abstract":"Dynamic spectrum management (DSM) of cognitive radio networks (CRNs) has been a hotspot for spectrum management departments as well as research community to alleviate spectrum scarcity problem. With the motive of facilitating CRNs with spectrum-related information with low cost in different scenarios including infrastructure less environment, this paper proposes a spectrum map based DSM (SMDSM) framework. Spectrum map is defined to provide external support for CRs with information including spectrum policy, spectrum availability, radio propagation characteristics, etc. The distribution scheme of spectrum map is designed for CRNs with and without infrastructure. Through the construction and distribution of spectrum map, SMDSM implements efficient spectrum management and provides spectrum information service for CRNs. The hardware in loop simulation system based on USRP and GNU radio is developed. Simulation results demonstrate that the DSM framework can make better use of spectrum and improve the system performance on throughput and delay.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124450117","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
An accurate parameter extraction method for RF LDMOSFET small-signal model 一种射频LDMOSFET小信号模型的精确参数提取方法
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-03-01 DOI: 10.1109/IEEE-IWS.2015.7164534
Wenna Song, Jun Fu, Yudong Wang, Wei Zhou, Wei Zhang, Jie Cui, Yue Zhao, Gaoqing Li, Zhihong Liu
{"title":"An accurate parameter extraction method for RF LDMOSFET small-signal model","authors":"Wenna Song, Jun Fu, Yudong Wang, Wei Zhou, Wei Zhang, Jie Cui, Yue Zhao, Gaoqing Li, Zhihong Liu","doi":"10.1109/IEEE-IWS.2015.7164534","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164534","url":null,"abstract":"A new direct parameter extraction method of small-signal equivalent circuit for radio frequency laterally-diffused Metal Oxide Semiconductor Field Effect Transistor (RF LDMOSFET) with Faraday shield biased in cut-off operation is presented in this paper. A series of analytical equations are derived for non-linear rational function fitting as well as linear regression to measured device frequency response characteristics. The method is successfully applied to a set of fabricated RF LDMOSFETs with different geometry scales. As a result, all of the cut-off small-signal equivalent circuit elements are determined. Validation of the extraction method is verified by good agreement between the simulation results and the corresponding measurement data. In addition, reasonable physical meaningfulness of the method is further demonstrated by characterizing the device geometrical dependences of the extracted gate-drain capacitance (Cgd) and drain-source capacitance (Cds).","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125725580","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
A complexity-reduced band-limited memory polynomial behavioral model for wideband power amplifier 一种降低复杂度的宽带功率放大器带限记忆多项式行为模型
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-03-01 DOI: 10.1109/IEEE-IWS.2015.7164551
Qi Zhang, Youjiang Liu, Jie Zhou, Wen-hua Chen
{"title":"A complexity-reduced band-limited memory polynomial behavioral model for wideband power amplifier","authors":"Qi Zhang, Youjiang Liu, Jie Zhou, Wen-hua Chen","doi":"10.1109/IEEE-IWS.2015.7164551","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164551","url":null,"abstract":"Band-limited Volterra series model is an effective way for power amplifier (PA) modeling and digital predistortion (DPD), in the presence of limited DAC/ADC sampling rate. However, it suffers from the issue of requiring very high order baseband band-limiting filter to guarantee the model accuracy, which increases computational complexity drastically. This paper proposes a more efficient band-limited model to reduce the required order of the band-limiting filter significantly, by adding an extra error compensation module into the original band-limited memory polynomial (BLMP) model. A class-AB GaN PA excited by a 60MHz bandwidth orthogonal frequency division multiplexing (OFDM) signal was tested to validate this approach. Experimental results prove that the new model has much lower complexity and higher accuracy than BLMP model.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130446321","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
On-board detection of SCR system insufficient and improper reductant by magnetically coupled resonators 磁耦合谐振器对可控硅系统还原剂不足和不当的车载检测
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-03-01 DOI: 10.1109/IEEE-IWS.2015.7164546
Chuang Wang, Xinmei Yuan, Jian Zhang
{"title":"On-board detection of SCR system insufficient and improper reductant by magnetically coupled resonators","authors":"Chuang Wang, Xinmei Yuan, Jian Zhang","doi":"10.1109/IEEE-IWS.2015.7164546","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164546","url":null,"abstract":"Selective catalytic reduction (SCR) is a standard aftertreatment technique to meet current engine emission regulations. In SCR system, AdBlue is always used as the reductant to be injected into the exhaust stream to convert NOx into N2. In order to ensure engine emissions compliance, insufficient or improper reductant in tank needs to be detected. In this paper, a non-contact method is proposed to detect the reductant in AdBlue tank. Two magnetic resonance coupling circuits are designed for the AdBlue level detection and AdBlue concentration detection respectively. With an adjustable source coil structure, the impedance matching can be achieved and the sensitivities of the measurements are greatly improved. The feasibility of the proposed method is validated by simulation and experimental results.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122244753","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
Hardware implementation of the space-time radio interferometric positioning system 时空无线电干涉定位系统的硬件实现
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-03-01 DOI: 10.1109/IEEE-IWS.2015.7164550
Marie Shinotsuka, Lin Cheng, Xiaoli Ma, G. Chang, G. Zhou
{"title":"Hardware implementation of the space-time radio interferometric positioning system","authors":"Marie Shinotsuka, Lin Cheng, Xiaoli Ma, G. Chang, G. Zhou","doi":"10.1109/IEEE-IWS.2015.7164550","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164550","url":null,"abstract":"Space-time radio interferometric positioning system (STRIPS) is a indoor localization system with low complexity that is robust to multipath effects. Its general idea follows a radio interferometric positioning system (RIPS), where two transmitters transmit sinusoidal signals at slightly different frequencies to create a slowly-varying envelope at a receiver. The receiver employs a cost-efficient envelope detector to extract the low-frequency differential signal, of which its phase contains a range information. Unlike the original RIPS, however, the STRIPS operates in the millimeter-wave (MMW) band, where the signal interference and multipath are less prominent than a typical radio-frequency (RF) band. In this paper, we implement the STRIPS on hardware and experimentally validate its performance. The experimental results show that the prototype we have built successfully achieves a submeter accuracy on average.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"71 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126102842","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 low-profile and wideband monopolar circular via-loaded patch antenna coupled with via-loaded ring 一种低轮廓宽带单极圆过孔加载贴片天线与过孔加载环耦合
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-03-01 DOI: 10.1109/IEEE-IWS.2015.7164599
Bin Wen, Juhua Liu, Wenlong Zhou, Y. Long
{"title":"A low-profile and wideband monopolar circular via-loaded patch antenna coupled with via-loaded ring","authors":"Bin Wen, Juhua Liu, Wenlong Zhou, Y. Long","doi":"10.1109/IEEE-IWS.2015.7164599","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164599","url":null,"abstract":"A low-profile center-fed circular via-loaded patch antenna coupled with a via-loaded ring both is presented. The antenna operates in four resonant modes. A wide band is then obtained by coupling the four resonant modes. With a profile of 1.5 mm, the antenna has a 10-dB return loss band from 4.91 GHz to 6.7 GHz. It can generate an omnidirectional pattern within the impedance band. Simulation results show that the antenna achieves a bandwidth of 30.9% for a profile of 0.03 wavelengths with a monopole like radiation pattern.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133116682","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
Air-kare: A Wi-Fi based, multi-sensor, real-time indoor air quality monitor air -kare:基于Wi-Fi的多传感器实时室内空气质量监测仪
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-03-01 DOI: 10.1109/IEEE-IWS.2015.7164542
Qianqian Yang, Guangyao Zhou, W. Qin, Bin Zhang, P. Chiang
{"title":"Air-kare: A Wi-Fi based, multi-sensor, real-time indoor air quality monitor","authors":"Qianqian Yang, Guangyao Zhou, W. Qin, Bin Zhang, P. Chiang","doi":"10.1109/IEEE-IWS.2015.7164542","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164542","url":null,"abstract":"A portable, real-time, wireless indoor air monitoring system is designed using the Arduino Yun platform. Because of the importance of a clean indoor environment on human health, the proposed prototype is designed to monitor the temperature, humidity, volatile organic compounds (VOCs) and miniature dust particles. The Arduino Yun platform incorporates an MCU that acquires and sends the data to a Wi-Fi chipset, serving as the communication bridge between the server and clients. Experimental results shows that temperature, humidity, concentration of VOCs and dust particle density can be detected in household with acceptable sensitivities, up to 50m away wirelessly, and charted in real-time with a HTML-5.0 enabled web browser. At the same time, all the historical data are stored in cloud.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114784695","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: 23
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