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A Phase Shifter by LTCC Substrate with an RF-MEMS Switch 带RF-MEMS开关的LTCC基板移相器
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751526
D. Yamane, T. Yamamoto, K. Urayama, K. Yamashita, H. Toshiyoshi, S. Kawasaki
{"title":"A Phase Shifter by LTCC Substrate with an RF-MEMS Switch","authors":"D. Yamane, T. Yamamoto, K. Urayama, K. Yamashita, H. Toshiyoshi, S. Kawasaki","doi":"10.1109/EUMC.2008.4751526","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751526","url":null,"abstract":"12.5 GHz band digital phase shifters to control a beam direction for an Active Integrated Phased Array Antenna (AIPAA) are designed and fabricated an RF-MEMS device and a LTCC substrate. We designed and fabricated low loss RF-MEMS wave guide (Lt0.5 dB) and 4-bit LTCC phase shifters with small-size (10 mm times 13 mm times 0.55 mm). From the experiment data, the insertion loss of RF-MEMS device and LTCC phase shifter is measured to be about 0.5 dB and about 1 dB at 12.5 GHz, respectively. And an integrated RF-MEMS SPDT switches on an LTCC phase shifter by using flip-chip bonding are measured the insertion loss is about 2.0 dB at 12.5 GHz per 1 bit.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128190398","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: 8
Novel Compact Transmission-line Output Network Topology for Class-E Power Amplifiers 新型e类功率放大器的紧凑在线传输输出网络拓扑
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751432
P. Aflaki, H. G. Bae, R. Negra, F. Ghannouchi
{"title":"Novel Compact Transmission-line Output Network Topology for Class-E Power Amplifiers","authors":"P. Aflaki, H. G. Bae, R. Negra, F. Ghannouchi","doi":"10.1109/EUMC.2008.4751432","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751432","url":null,"abstract":"This paper presents a new low-complexity transmission-line load transformation network topology suitable to synthesis class-E impedance termination with a minimum of circuit elements. Only one additional stub, besides the quarter wavelength drain bias stub, is used to control simultaneously fundamental, second and third harmonic frequency impedance termination. In this way, loss in the load coupling network is minimised resulting in higher efficiency than by using other approaches. Design and performance of a highly efficient class-E power amplifier operating at 1 GHz based on the proposed transmission-line output network topology are presented. State-of-the-art power added efficiency of 80% at 1 GHz for an output power of 7 W is measured.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115847381","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
Power Amplifier Design for E-band Wireless System Communications e波段无线系统通信的功率放大器设计
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751721
D. Hadziabdic, V. Krozer, T. Johansen
{"title":"Power Amplifier Design for E-band Wireless System Communications","authors":"D. Hadziabdic, V. Krozer, T. Johansen","doi":"10.1109/EUMC.2008.4751721","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751721","url":null,"abstract":"E-band wireless communications will become important as the microwave backhaul for high-speed data transmission. One of the most critical components is the front-end power amplifier in this system. The paper analyzes different technologies with potential in the E-band frequency range and present a power amplifier design satisfying the E-band system specifications. The designed power amplifier achieves a maximum output power of ges 20 dBm with a state-of-the-art power-added efficiency of 15%. The power is realized using InP DHBT technology. To the best of our knowledge it is the highest output power and efficiency reported for an InP HBT power amplifier in this frequency range. The predicted power-added efficiency is higher than that of power amplifiers based on SiGe HBT and GaAs pHEMT technologies. The design shows the capabilities of InP DHBT for power amplifier applications as an alternative to HEMT based technologies in the millimeter-wave frequency range.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"21 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131456327","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: 15
Passive UHF RFID Tag with Increased Read Range 无源超高频RFID标签增加读取范围
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751651
A. Popov, S. Dudnikov, A. Mikhaylov
{"title":"Passive UHF RFID Tag with Increased Read Range","authors":"A. Popov, S. Dudnikov, A. Mikhaylov","doi":"10.1109/EUMC.2008.4751651","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751651","url":null,"abstract":"In this paper a design of an antenna for passive UHF RFID tags is presented. Tag with proposed antenna designed for identification objects in presence of metal surfaces is characterized by increased read range and higher efficiency as compared with typically used RFID tags for this purpose. Longrange antenna was simulated and experimentally investigated. In accordance with the results of measurement a RFID tag using proposed antenna can be successfully identified at the distance up to 14 m.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132055706","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: 13
Substrate Integrated Folded-Waveguide Filter with Asymmetrical Frequency Response 非对称频响基板集成折叠波导滤波器
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751625
S. Alotaibi, Jiasheng Hong
{"title":"Substrate Integrated Folded-Waveguide Filter with Asymmetrical Frequency Response","authors":"S. Alotaibi, Jiasheng Hong","doi":"10.1109/EUMC.2008.4751625","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751625","url":null,"abstract":"A new 2-pole bandpass filter design based on a substrate integrated folded-waveguide (SIFW) resonator structure is presented. The filter uses an advanced coupling scheme to achieve a desired asymmetric frequency response with an attenuation pole of finite frequency on the high side of the passband. A full-wave simulator has been employed for designing the filter. The proposed filter circuit design has been implemented. It has been found that the experimental result of constructed filter is in close agreement with simulation result. This filter also provides an improved selectivity characteristic with compact size compared with the conventional resonator filters.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"18 1-4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132320863","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: 11
Super-Compact Planar Ultra-Wideband (UWB) Bandpass Filter Composed of Capacitor-Loaded E-shaped Electrodes 电容器负载e型电极组成的超紧凑平面超宽带(UWB)带通滤波器
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751463
Y. Horii
{"title":"Super-Compact Planar Ultra-Wideband (UWB) Bandpass Filter Composed of Capacitor-Loaded E-shaped Electrodes","authors":"Y. Horii","doi":"10.1109/EUMC.2008.4751463","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751463","url":null,"abstract":"This paper newly proposes a super-compact planar ultra-wideband (UWB) bandpass filter composed of capacitor-loaded E-shaped electrodes. This capacitor supplies additional capacitance to the tightly-coupled electrodes, leading to relax the fabrication difficulties. By introducing the capacitor to the gap, response of the UWB passband is drastically improved. In the experiment, with a 0.5 pF capacitor, a clear UWB passband from 3.1 GHz to 11.4 GHz (FBW 114%) was obtained with small ripples of less than 0.5 dB and minimum insertion loss of 0.4 dB, which results show good agreement with the theory. Using this method, planar UWB filters can be made much more compact.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130070978","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: 13
A model to estimate the RFID read-region in real environments 一种估算真实环境中RFID读取区域的模型
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751805
R. Aliberti, E. Di Giampaolo, G. Marrocco
{"title":"A model to estimate the RFID read-region in real environments","authors":"R. Aliberti, E. Di Giampaolo, G. Marrocco","doi":"10.1109/EUMC.2008.4751805","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751805","url":null,"abstract":"The reading range is one of the most critical performance indicators of a radiofrequency identification system and depends on many physical and geometrical parameters. An accurate prediction of the read zone may be accomplished by a time-consuming electromagnetic modelling accounting for the antennas and the interaction with the environment. This paper proposed, instead, a fast prediction model, based on a small set of data and parametric antenna representation, which is demonstrated to achieve the same accuracy of a fullwave 3D model in application to realistic environments. The derived formulas are ready to use and maybe useful for the planning and optimization of reader-tag networks.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130424473","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
Integrated Antennas for Wireless Interconnections on Silicon up to 110 GHz 用于高达110 GHz的硅上无线互连的集成天线
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751691
A. Triantafyllou, N. Corrao, P. Benech, F. Ndagijimana, A. Farcy, J. Torres
{"title":"Integrated Antennas for Wireless Interconnections on Silicon up to 110 GHz","authors":"A. Triantafyllou, N. Corrao, P. Benech, F. Ndagijimana, A. Farcy, J. Torres","doi":"10.1109/EUMC.2008.4751691","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751691","url":null,"abstract":"Wireless interconnect is an alternative to high integration in silicon where it will be difficult to have all interconnections in the back end of line (BEOL) due to size reduction of active components. The feasibility of such interconnect was previously demonstrated by designing and characterising integrated antennas. The targeted frequency range was about 30 GHz. In the present paper, we have analysed in term of propagation mode and by measurement the possibility of increasing the operating frequency up to 110 GHz. It is demonstrated that the transmission around 30 GHz is possible but another frequency range around 95 GHz can also be used.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130463830","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 Novel Reconfigurable Dual-Mode Microstrip Meander Loop Filter 一种新型可重构双模微带蜿蜒环路滤波器
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751384
M. Al Mutairi, A. Sheta, M. Alkanhal
{"title":"A Novel Reconfigurable Dual-Mode Microstrip Meander Loop Filter","authors":"M. Al Mutairi, A. Sheta, M. Alkanhal","doi":"10.1109/EUMC.2008.4751384","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751384","url":null,"abstract":"A novel dual-mode reconfigurable band pass filter is proposed. A meander loop compact structure is used, where its four arms are brought inside the loop. Structure's perturbation is designed by filling the gap between the two arms at the top right corner. The loop is loaded by four varactor diodes connected between each arm and a small square patch located at the centre. Varactors are shorted through a via at the centre of the small square patch to control the centre frequency of the filter. This structure is compact, simple in fabrication, and has a wide tuning range. A tunable bandpass filter is designed and implemented to tune over the range from 1.47 GHz to 2.40 GHz (relative tuneable bandwidth ~48%). The fractional bandwidth (FBW) changes from 6.9% at 2.4 GHz to 3.1% at 1.47 GHz.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134258604","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
Efficiency Treatment of Composite Right/Left-Handed TL Zeroth-Order Resonator Antenna 复合左/右TL零阶谐振器天线的效率处理
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751507
D. Vrba, M. Polivka, P. Hamouz, M. Svanda, P. Hudec
{"title":"Efficiency Treatment of Composite Right/Left-Handed TL Zeroth-Order Resonator Antenna","authors":"D. Vrba, M. Polivka, P. Hamouz, M. Svanda, P. Hudec","doi":"10.1109/EUMC.2008.4751507","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751507","url":null,"abstract":"Antenna efficiency of zeroth-order resonator (ZOR) antenna implemented in composite right/left-handed transmission line (CRLH TL) microstrip structure is treated by method of moment simulator IE3D. Radiation is investigated from individual portions of the antenna structure according to calculated amplitude of surface current density. Dominantly radiating regions are identified, geometrically emphasized, and efficiency improved version of CRLH ZOR antenna is designed, realized, measured and compared with initial design. Improvement of simulation antenna efficiency from 10 to 75% and 4x increased measured gain at design ZOR frequency has been found.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131779585","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
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