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Multi-gigabit data transmission using MMIC-based E-band frontends 使用基于mmic的e波段前端进行多千兆数据传输
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830116
J. Antes, F. Boes, D. Meier, U. Lewark, A. Tessmann, A. Leuther, R. Henneberger, I. Kallfass
{"title":"Multi-gigabit data transmission using MMIC-based E-band frontends","authors":"J. Antes, F. Boes, D. Meier, U. Lewark, A. Tessmann, A. Leuther, R. Henneberger, I. Kallfass","doi":"10.1109/RWS.2014.6830116","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830116","url":null,"abstract":"In this paper, the transmission of broadband complex modulated signals with data rates up to 48 Gbit=s using an E-band MMIC-based analog frontend is shown. The paper presents the transmission of QPSK, 8-PSK and 16-QAM modulated signals with a symbol rate of 12 GBd. The received signal quality is evaluated in terms of error vector magnitude, which, measured in a coherent setup, shows values of -18.8 dB, -18.7 dB and -20.9 dB for the QPSK, 8-PSK and 16-QAM signal, respectively. Using a more application oriented incoherent setup, the signal quality decreases about 1 dB.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122018985","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: 14
Nonlinear distortion suppression scheme employing transmit power control for MU-MIMO-OFDM systems 基于发射功率控制的MU-MIMO-OFDM系统非线性失真抑制方案
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830091
Gen Osada, Shoya Takebuchi, F. Maehara
{"title":"Nonlinear distortion suppression scheme employing transmit power control for MU-MIMO-OFDM systems","authors":"Gen Osada, Shoya Takebuchi, F. Maehara","doi":"10.1109/RWS.2014.6830091","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830091","url":null,"abstract":"MU-MIMO-OFDM is an effective technique to achieve high capacity and reliable wireless communications systems because both the robustness against multipath fading and the high spectrum efficiency can be effectively achieved by the combination of OFDM with MU-MIMO. However, MU-MIMO-OFDM significantly suffers from the nonlinear distortion which is a main drawback of OFDM. In this paper, we propose nonlinear distortion suppression scheme employing transmit power control for MU-MIMO-OFDM. The main feature of the proposed scheme is to apply the deterministic transmit power control to MU-MIMO-OFDM without any destruction of the space orthogonality. The effectiveness of the proposed scheme is demonstrated in comparison with the traditional MU-MIMO-OFDM over the nonlinear fading channels.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"501 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122754500","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
Towards low power consumption MMIC UWB localization system 迈向低功耗MMIC超宽带定位系统
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830141
E. Elkhouly, M. Kuhn, D. Lin, A. Fathy
{"title":"Towards low power consumption MMIC UWB localization system","authors":"E. Elkhouly, M. Kuhn, D. Lin, A. Fathy","doi":"10.1109/RWS.2014.6830141","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830141","url":null,"abstract":"Many UWB precise localization systems have been successfully demonstrated. Most of these developed systems are based on assembly of off-the-shelf hybrid components and consume significant DC power. But, recently many MMIC circuits with extremely low power consumption have been successfully developed and present a new opportunity for evolving low cost, compact, and significantly reduced power consumption systems opening the door for new set of UWB applications. Here, we present our efforts to replace some of previously used hybrid components by MMIC chips developed by Ulm University as a first step towards developing a fully MMIC chip for UWB precise localization system. UWB localization system with discrete and partially MMIC versions demonstrated similar performance, but the one with MMICs has significantly reduced power consumption and footprint.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125548307","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
Symmetric coupled composite right-/left-handed transmission line with dual-mode balanced filter characteristics 具有双模平衡滤波特性的对称耦合复合右/左手传输线
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830076
Young Kim, S. Sim, Y. Yoon
{"title":"Symmetric coupled composite right-/left-handed transmission line with dual-mode balanced filter characteristics","authors":"Young Kim, S. Sim, Y. Yoon","doi":"10.1109/RWS.2014.6830076","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830076","url":null,"abstract":"In this paper, a symmetric coupled composite right-/left-handed transmission line (CRLH-TL) with dual-mode balanced filter characteristics is proposed. Unlike the other symmetric structures, this configuration has the ability to operate under both common- and differential-mode excitation. This ability is achieved by providing a physical short circuit by means of ground vias at the center of each unit-cell along the symmetry plane of the structure. In this study, we implemented a dual-mode balanced filter on the basis of the fact that CRLH unit-cells can be operated under both common- and differential-mode excitation. To validate this ability, a five-cell four port symmetric coupled CRLH-TL is simulated, fabricated, and its performance is measured. The obtained results are in good agreement with the simulation results under both common- and differential-mode excitation.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117343451","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 12.1 mW 50∼67 GHz up-conversion mixer with 6 dB conversion gain and 30.7 dB LO-RF isolation in 90 nm CMOS 一个12.1 mW 50 ~ 67 GHz上转换混频器，具有6 dB转换增益和30.7 dB LO-RF隔离，采用90 nm CMOS
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830070
Yo‐Sheng Lin, Chien-Chin Wang, Wei-Chen Wen, T. Tsai
{"title":"A 12.1 mW 50∼67 GHz up-conversion mixer with 6 dB conversion gain and 30.7 dB LO-RF isolation in 90 nm CMOS","authors":"Yo‐Sheng Lin, Chien-Chin Wang, Wei-Chen Wen, T. Tsai","doi":"10.1109/RWS.2014.6830070","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830070","url":null,"abstract":"A 50~67 GHz double-balanced mixer for direct up-conversion using standard 90 nm CMOS technology is reported. The up-conversion mixer comprises an enhanced double-balanced Gilbert cell with current injection for power consumption reduction, and negative resistance compensation for conversion gain (CG) enhancement, a parallel and differential IF transconductance stage for bandwidth and linearity enhancement, a Marchand balun for converting the single LO input signal to differential signal, and another Marchand balun for converting the differential RF output signal to single signal. The mixer consumes 12.1 mW and achieves IF-port input return loss of -12.8 dB at 0.1 GHz, LO-port input return loss of -9.5 ~ -11.4 dB and RF-port input return loss of -10.7 ~ -12.5 dB for frequencies 57~64 GHz. At IF of 0.1 GHz, the mixer achieves CG of 3.1~6 dB and LO-RF isolation of 26.4~30.7 dB for RF of 50~67 GHz. The corresponding 3-dB bandwidth of RF is larger than 17 GHz (the measurement range of 50~67 GHz). To the authors' knowledge, the CG and power consumption are one of the best results ever reported for a 60 GHz CMOS/BiCMOS up-conversion mixer.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116038625","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
Electrothermal modeling of PIN diode protection circuits in MRI surface coils MRI表面线圈PIN二极管保护电路的电热建模
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830133
R. Caverly
{"title":"Electrothermal modeling of PIN diode protection circuits in MRI surface coils","authors":"R. Caverly","doi":"10.1109/RWS.2014.6830133","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830133","url":null,"abstract":"A study of the temperature rise in MRI coil PIN diode protection circuits is presented. The study is based on a previously defined electrothermal model for the PIN diode that is applied to MR surface coils. The model shows a rapid rise in the PIN diode temperature with application of the MR transmit pulse and for low duty cycle MR pulse sequences, the diode cools significantly during the off-phase of the MR transmit pulse. For commercial surface coil protection diodes, a continuous temperature above approximately 125 °C will result in diode destruction, and this new electrothermal model allows MR coil designers the ability to predict temperature effects as part of the full design of the coil.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"223 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113977901","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 CPW fed rectangular slot antenna for wideband circular polarization 一种用于宽带圆极化的CPW馈电矩形槽天线
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830075
R. R. Krishna, Raj Kumar
{"title":"A CPW fed rectangular slot antenna for wideband circular polarization","authors":"R. R. Krishna, Raj Kumar","doi":"10.1109/RWS.2014.6830075","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830075","url":null,"abstract":"A CPW excited rectangular slot antenna for circular polarization is presented. The feed line is terminated on a circular disc having a slant rectangular slit. Inverted L-shape strips are attached to the ground plane and protrude into the rectangular slot. The measured impedance bandwidth achieved by the antenna is 124% from 2.4 GHz to 10.2 GHz The measured bandwidth of circular polarization with axial ratio <; 3 dB is 40% (simulated - 48%) from 4.75 GHz to 7.1 GHz. The antenna is compact in size, has good radiation patterns and is expected to be useful for portable communication devices operating in the above mentioned range with requirement of circular polarization.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132691748","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
Effect of different platforms on coupling compensation matrices in AOA estimation algorithms using small size UCA 基于小尺寸UCA的AOA估计算法中不同平台对耦合补偿矩阵的影响
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830110
T. Ghazaany, S. Zhu, S. R. Jones, R. Abd‐Alhameed, J. Noras, T. Buren, S. Marker
{"title":"Effect of different platforms on coupling compensation matrices in AOA estimation algorithms using small size UCA","authors":"T. Ghazaany, S. Zhu, S. R. Jones, R. Abd‐Alhameed, J. Noras, T. Buren, S. Marker","doi":"10.1109/RWS.2014.6830110","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830110","url":null,"abstract":"In this paper the sensitivity of the decoupling matrix used for mutual coupling compensation in small size uniform circular arrays has been studied. The compensation matrix is calculated using the receiving mode technique for a 5-element uniform circular array and applied to two groups of direction finding algorithms, namely phase comparison-based (interferometry) and subspace-based algorithms. In the tracking application considered the receiver array is deployed on a car roof or aircraft, so the geometry of the platform influences the compensation results. In this work, the effect of different ground plane geometries in terms of the standard deviation of angular error for each estimation algorithm using simulation results is investigated. The results show that the calibration conditions used to determine the compensation matrix affect the AOA estimation accuracy.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126484430","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
Energy harvesting with a low-cost and high efficiency rectenna for low-power input 能量收集与低成本和高效率的整流天线低功率输入
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830123
S. D. Assimonis, A. Bletsas
{"title":"Energy harvesting with a low-cost and high efficiency rectenna for low-power input","authors":"S. D. Assimonis, A. Bletsas","doi":"10.1109/RWS.2014.6830123","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830123","url":null,"abstract":"In this paper a low-complexity, low-cost and high efficiency rectenna is analyzed, fabricated and measured, for low input power. Even though the configuration employs a low-cost, lossy substrate and a low-complexity rectifier circuit with a single diode, the rectenna efficiency reaches 20% and 37% at -20 and -10 dBm, respectively. Measurements agree well with simulations.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132060453","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: 27
Prototyping and performance evaluation of TDD-based 2×2 MIMO-OFDM transceiver 基于tdd的2×2 MIMO-OFDM收发器原型及性能评估
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830077
K. Mitsuyama, N. Kogo, Fumiki Uzawa, N. Iai
{"title":"Prototyping and performance evaluation of TDD-based 2×2 MIMO-OFDM transceiver","authors":"K. Mitsuyama, N. Kogo, Fumiki Uzawa, N. Iai","doi":"10.1109/RWS.2014.6830077","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830077","url":null,"abstract":"We have been developing a new wireless link that enables quick transmission of file-based video resources for news programmes. Since the transmission distance we assume ranges widely from less than 1 km to as far as 50 km, it is necessary to have efficient transmission timing control in duplex communication based on TDD. In order to enhance the transmission capacity in line-of-sight environments, it is useful to introduce a MIMO technique that exploits dual-polarized antennas and a multilevel modulation scheme such as 128 QAM and 256 QAM. In this paper, we describe the prototype TDD-based 2×2 MIMO-OFDM transceiver and its performance evaluation in wired and radio transmission experiments.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121276262","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
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