发布求助
文献互助 智能选刊 最新文献

2012 7th European Microwave Integrated Circuit Conference最新文献

筛选
英文 中文
Multiphysics modeling of metal ceramic compact for microwave processing 微波加工用金属陶瓷压块的多物理场建模
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459173
J. Devi, M. J. Akhtar
{"title":"Multiphysics modeling of metal ceramic compact for microwave processing","authors":"J. Devi, M. J. Akhtar","doi":"10.23919/EUMC.2012.6459173","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459173","url":null,"abstract":"A multiphysics model of metal powder embedded ceramic matrix is developed in order to explore their usage for the microwave processing and sintering application. The development of the required model is facilitated by introducing the concept of the effective permittivity and permeability of the mixture of the metal powder and the base matrix. The effective dielectric and magnetic properties of the mixture are estimated by Lichtenecker's mixture formula using the complex permittivity and permeability of the iron metal powder and nano alumina powder. The simulation is carried out using COMSOL multiphysics software, where a spherical sample of the mixture is placed inside a cavity and the microwave energy is incident from the rectangular waveguide into the cavity. In the first step, the electromagnetic field distribution inside the sample is studied by varying its position inside the cavity. The electromagnetic model data is then fed to the thermal model of the COMSOL, and the simulation is carried out for 600 seconds with the microwave power of 500 watt. It is observed that the optimum heating pattern is obtained for a mixture of 5% iron metal powder and 95% Alumina. It is also noticed that the maximum temperature rise is obtained when the sample is placed at the position of maximum electric field, which is due to the fact that the iron powder has quite high value of dielectric loss factor as compared to the magnetic loss.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"47 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122807724","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
Millimeter-wave power amplifier module using redistribution layer technology 毫米波功率放大器模块采用重分配层技术
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459202
M. Sato, Y. Ishizuki, S. Sasaki, H. Matsumura, T. Suzuki, M. Tani
{"title":"Millimeter-wave power amplifier module using redistribution layer technology","authors":"M. Sato, Y. Ishizuki, S. Sasaki, H. Matsumura, T. Suzuki, M. Tani","doi":"10.23919/EUMC.2012.6459202","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459202","url":null,"abstract":"This paper presents a 77-GHz band high-power CMOS amplifier module. In an effort to integrate MMIC with low-loss passive circuits, multi-layered redistribution layer (RDL) technology has been installed. Passive circuits made using RDL technology and 65-nm CMOS circuits are enabling breakthrough approaches for millimeter wave applications. Low-loss passive circuits using RDL technology was fabricated. Moreover, we developed an amplifier module combining four identical CMOS power amplifiers with RDL Wilkinson power combiner to increase the output power. The saturation power of the amplifier module exhibits 15 dBm, which is 6 dB higher than that of the single PA.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131480966","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
PLL with secondary loop control for self tracking antennas 带二次环路控制的锁相环自跟踪天线
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459367
N. Buchanan, V. Fusco
{"title":"PLL with secondary loop control for self tracking antennas","authors":"N. Buchanan, V. Fusco","doi":"10.23919/EUMC.2012.6459367","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459367","url":null,"abstract":"This paper shows a simple, yet highly effective, tracking phase locked loop circuit which has applications for self steered antenna arrays. The tracking PLL has been demonstrated to accurately phase track signal levels as low as -120 dBm, making it suitable for applications such as SATCOM ground terminals. The implementation is simple requiring a low Q voltage controlled oscillator, a downconverting mixer and a PLL circuit.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132815337","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
Bandwidth control of reconfigurable bandpass filter by automatic coupling adjustment techniques 基于自动耦合调节技术的可重构带通滤波器带宽控制
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459182
T. Arai, Y. Yamao
{"title":"Bandwidth control of reconfigurable bandpass filter by automatic coupling adjustment techniques","authors":"T. Arai, Y. Yamao","doi":"10.23919/EUMC.2012.6459182","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459182","url":null,"abstract":"Reconfigurable bandpass filters that can adapt to many frequency bands will be one of the key parts in the future mobile terminals. A multi-bit reconfigurable resonator using tapped transmission line and RF Switches has been proposed and two-stage bandpass filters (BPF) have been developed. However, bandwidth control of the reconfigurable BPF remains as an important issue from the application point of view. This paper proposes reconfigurable coupling methods that automatically adjust coupling between two resonators in the BPF synchronized to the change of center frequency. Two-bit reconfigurable BPFs were fabricated according to the proposed design principle and their performances are compared with traditional capacitance coupling method. It is shown that the proposed methods can reduce the bandwidth change among four center frequencies to 30 to 36 % of the traditional capacitance coupling method.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133443338","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
Development of packaged UWB passive devices using LCP multilayer circuit technology 采用LCP多层电路技术的封装超宽带无源器件的研制
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459377
F. Cervera, Jiasheng Hong, N. Thomson
{"title":"Development of packaged UWB passive devices using LCP multilayer circuit technology","authors":"F. Cervera, Jiasheng Hong, N. Thomson","doi":"10.23919/EUMC.2012.6459377","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459377","url":null,"abstract":"A novel method for near-hermetic packaging of integrated UWB passive devices based on multilayer liquid crystal polymer technology is presented in this paper. The aim of this work is to develop a cheap, easy-to-manufacture procedure that can be used to enclose already designed devices without the need of any redesign, and works up to 20GHz. To achieve this, a coplanar waveguide-to-microstrip (CPW-MS) transition is designed to connect the enclosed device with the outer environment. This allows for the device to be PCB mounted as well as providing isolation. Two experiments are presented to validate this approach: an enclosed MS line, in order to measure the losses introduced by the packaging; and then a real ultra wideband (UWB) filter replacing the MS line using the same packaging. Simulated and measured results are provided in order to validate this approach.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134219990","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: 7
Mode suppressing packaging for 50 GHz cryogenic low-noise amplifiers 50 GHz低温低噪声放大器的模抑制封装
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459086
D. Henke, F. Jiang, S. Claude
{"title":"Mode suppressing packaging for 50 GHz cryogenic low-noise amplifiers","authors":"D. Henke, F. Jiang, S. Claude","doi":"10.23919/EUMC.2012.6459086","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459086","url":null,"abstract":"Hybrid cryogenic low-noise amplifiers are often enclosed in a metallic housing with several bias channels. Strict machining tolerance is necessary for solid clamping of the lid to avoid degradation in performance. A new packaging is proposed by applying photonic bandgap (PBG) structures; which greatly relaxes the tolerance on clamping, results in natural bias channels, suppresses higher order modes, and creates wide open access for assembly.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134076905","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
Output design considerations in wireless portable through-the-earth communications system using current injection 使用电流注入的无线便携式透地通信系统的输出设计考虑
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459322
A. Muoz, A. Mediano
{"title":"Output design considerations in wireless portable through-the-earth communications system using current injection","authors":"A. Muoz, A. Mediano","doi":"10.23919/EUMC.2012.6459322","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459322","url":null,"abstract":"Through-The-Earth (TTE) wireless communication systems are very useful in confined areas, tunnels or mines where electromagnetic waves suffer from high attenuation. This attenuation is introduced by the dissipative media that forms the channel so low frequency signals are mandatory in the communication resulting in a poor antenna/system efficiency. Up to date designed amplifiers use class A, B or AB stages, making the overall efficiency even worse. This paper presents to the wireless designers the design of an efficient output topology around a switching class-S amplifier which maintains efficiency in spite of a widely varying load. A working prototype based in the proposed design is evaluated in terms of efficiency for the whole range of loads and used frequencies.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114540334","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
245 GHz subharmonic receiver in SiGe SiGe中的245ghz次谐波接收机
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.1109/MWSYM.2013.6697429
Y. Mao, K. Schmalz, J. Borngraber, J. Scheytt
{"title":"245 GHz subharmonic receiver in SiGe","authors":"Y. Mao, K. Schmalz, J. Borngraber, J. Scheytt","doi":"10.1109/MWSYM.2013.6697429","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697429","url":null,"abstract":"A subharmonic receiver for sensing applications in the 245 GHz ISM band has been proposed. The receiver consists of a single-ended common base LNA, a 60 GHz push-push VCO with 1/32 divider, a transconductance 4th subharmonic mixer and IF amplifier. The receiver is fabricated in fT/fmax=300/500 GHz SiGe: C BiCMOS technology. Its measured single-ended gain is 21 dB at 243 GHz with tuning range of 12 GHz, and the single-side band noise figure is 32 dB. The input 1-dB compression point is at -37 dBm. The receiver dissipates a power of 358 mW.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124444978","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
Characterization of electrical memory effects for complex multi-tone excitations using broadband active baseband load-pull 利用宽带有源基带负载-拉效应表征复杂多音激励的电记忆效应
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459083
M. Akmal, F. L. Ogboi, Z. Yusoff, J. Lees, V. Carrubba, H. Choi, S. Bensmida, K. Morris, M. Beach, J. Mcgeehan, J. Benedikt, P. Tasker
{"title":"Characterization of electrical memory effects for complex multi-tone excitations using broadband active baseband load-pull","authors":"M. Akmal, F. L. Ogboi, Z. Yusoff, J. Lees, V. Carrubba, H. Choi, S. Bensmida, K. Morris, M. Beach, J. Mcgeehan, J. Benedikt, P. Tasker","doi":"10.23919/EUMC.2012.6459083","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459083","url":null,"abstract":"This paper focuses on multi-tone characterization of baseband (IF) electrical memory effects and their reduction through the application of complex-signal, active baseband load-pull. This system has been implemented to allow the precise evaluation of intrinsic nonlinearity in high-power microwave devices for wideband applications. The developed active baseband load-pull capability allows a constant, frequency independent baseband load environment to be presented across wide modulation bandwidths, and this capability is important in allowing the effects of baseband impedance variation on the performance of nonlinear microwave devices, when driven by broadband multi-tone stimuli, to be fully understood. The experimental investigations were carried out using a 10 W GaN HEMT device, under 9-carrier complex modulated excitation. These confirmed that presenting a wideband baseband short circuit was essential for maximum ACPR suppression together with the minimization of ACPR asymmetry, confirming the importance of proper termination of baseband frequency components when designing DC bias networks.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125068147","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: 12
A wide supply voltage and low-Rx noise Envelope tracking supply modulator IC for LTE handset power amplifiers 一种用于LTE手机功率放大器的宽电源电压和低rx噪声包络跟踪电源调制器IC
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459308
Y. Honda, Y. Yokota, N. Goto, N. Matsuno, Y. Saito
{"title":"A wide supply voltage and low-Rx noise Envelope tracking supply modulator IC for LTE handset power amplifiers","authors":"Y. Honda, Y. Yokota, N. Goto, N. Matsuno, Y. Saito","doi":"10.23919/EUMC.2012.6459308","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459308","url":null,"abstract":"A high efficiency envelope tracking supply modulator IC for LTE handset use is presented. It is fabricated using 0.35 um CMOS with optional 6-V-MOSFETs, and operates at a wide supply voltage range from 2.9 to 6.0 V. This enables the supply modulator to be directly connected to a lithium-ion battery. The switching noise of the supply modulator is carefully designed to meet the received band (Rx) noise requirement. An envelope tracking power amplifier (ET-PA) consisting of the modulator IC and an InGaP/GaAs-heterojunction-bipolar-transistor (HBT) PA-IC is examined with 1.95-GHz-band, 10-MHz bandwidth long-term-evolution (LTE) up-link signal. Despite a use of high-breakdown-voltage CMOS process for the modulator, the ET-PA achieves a power-added efficiency (PAE) of 33.4% at an output power of 26 dBm with an adjustment channel leakage power ratio (ACLR) of -35 dBc. In comparison with a conventional PA, the PAE has improved 3.0 and 7.3% at an output power of 26 and 20 dBm, respectively. The Rx noise is -134 dBm/Hz.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116337332","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信