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Transformation electromagnetics devices using tensor impedance surfaces 利用张量阻抗曲面变换电磁学器件
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-07-12 DOI: 10.1109/MWSYM.2013.6697700
Amit M. Patel, A. Grbic
{"title":"Transformation electromagnetics devices using tensor impedance surfaces","authors":"Amit M. Patel, A. Grbic","doi":"10.1109/MWSYM.2013.6697700","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697700","url":null,"abstract":"A method for designing transformation electromagnetics devices using tensor impedance surfaces (TISs) is presented. The method allows anisotropic TISs to be designed that can support tangential wave vector distributions and power flow directions specified by a coordinate transformation. A beam-shifting device is designed using an anisotropic surface that allows a surface wave with a Gaussian profile to be shifted laterally at 10 GHz. The design is verified with a commercial full-wave solver. This work opens new opportunities for the design and implementation of surfaces that can guide or radiate electromagnetic fields.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121971351","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: 18
Parametric conversion with distributedly modulated capacitors (DMC) for low-noise and non-reciprocal RF front-ends 用分布调制电容器(DMC)进行低噪声和非互易射频前端的参数转换
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697751
Shihan Qin, Y. Wang
{"title":"Parametric conversion with distributedly modulated capacitors (DMC) for low-noise and non-reciprocal RF front-ends","authors":"Shihan Qin, Y. Wang","doi":"10.1109/MWSYM.2013.6697751","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697751","url":null,"abstract":"Transmission lines with time-varying reactance exhibit interesting behaviors such as parametric amplification and mixing [1]. In this paper, such a transmission line realized with distributedly modulated capacitors (DMC) is demonstrated with its active conversion gain, low noise figure as well as non-reciprocity. DMC is offered a great potential to operate in an RF front-end either as a broadband low-noise amplifier (LNA) or an integrated circulator. A practical implementation is presented with varactors and microstrip lines connected in double-balanced fashion. DMC shows in simulations that 9 dB gain with below 0.5 dB noise figure over the input signal frequency of 1 to 6 GHz is achievable when it is optimized for gain and noise performance. Alternatively when the circuit is optimized for isolation, greater than 13 dB isolation can be achieved from 500 MHz to 1.8 GHz, which has been verified with the experiment.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"10 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115470177","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
Class F rectifier RF-DC conversion efficiency analysis F类整流器RF-DC转换效率分析
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697776
J. Guo, Xinen Zhu
{"title":"Class F rectifier RF-DC conversion efficiency analysis","authors":"J. Guo, Xinen Zhu","doi":"10.1109/MWSYM.2013.6697776","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697776","url":null,"abstract":"In this paper, an analytical model for the Class F rectifier RF-DC conversion efficiency is presented. This model is based on the Class F voltage and current waveforms in the time domain, and analyzes three kinds of power losses due to the diode series resistor, junction capacitor and built-in potential. Closed-form equations are derived to calculate the Class F rectifier efficiency at various input power levels. This model can well predict the efficiency improvement due to the Class F harmonic termination. A 900 MHz Class F rectifier is designed with the highest measured efficiency of 80.4%, and the measurement results agree well with the proposed model calculation.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"252 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115625344","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
An RF/microwave microfluidic sensor based on a center-gapped microstrip line for miniaturized dielectric spectroscopy 基于中心间隙微带线的小型化介电光谱射频/微波微流控传感器
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697555
M. Suster, P. Mohseni
{"title":"An RF/microwave microfluidic sensor based on a center-gapped microstrip line for miniaturized dielectric spectroscopy","authors":"M. Suster, P. Mohseni","doi":"10.1109/MWSYM.2013.6697555","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697555","url":null,"abstract":"This paper reports on the design, fabrication and testing of a microfluidic sensor as part of a miniaturized measurement platform currently under development for dielectric spectroscopy (DS) at RF/microwave frequencies. The sensor employs a microstrip line with a 50-μm gap at the center as a parallel-plate capacitive sensing element and a 3-μL PDMS microfluidic channel on top for delivering the solution-under-test (SUT). Requiring only an S21 measurement and after a 5-point calibration for a dielectric constant range of 1 to 48, sensor dielectric readings in the frequency range of 14MHz to 4GHz agree very well with bulk-solution reference measurements conducted with an Agilent dielectric probe kit. The maximum errors over the full frequency range for ethanol, ethylene glycol and ethyl acetate are -6.9%, -8.4% and -7.4%, respectively. The errors reduce to 1.7%, -4.7% and -7.1%, respectively, for frequencies above 2GHz.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123061885","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: 22
Modeling and optimization of a RF ballistic graphene demodulator 射频弹道石墨烯解调器的建模与优化
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697767
F. Coccetti, R. Plana, G. Deligeorgis
{"title":"Modeling and optimization of a RF ballistic graphene demodulator","authors":"F. Coccetti, R. Plana, G. Deligeorgis","doi":"10.1109/MWSYM.2013.6697767","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697767","url":null,"abstract":"Graphene demodulator devices operating on the concept of ballistic transport have been recently shown as a new pathway to provide novel functionality. In this work we simulate and optimize such a device using high frequency simulation software. The simulation points to two different optimization steps that may be realized and also enables explanation of the devices high frequency behavior. Finally, parameters such as graphene sheet resistance are indirectly evaluated.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"546 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123113354","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
A finite 3D field simulation method for permittivity gradient implementation of a novel porosification process in LTCC 一种基于介电常数梯度的有限三维场模拟方法在LTCC中实现了一种新的多孔化过程
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697583
A. Talai, Frank Steinhauser, U. Schmid, R. Weigel, A. Bittner, A. Koelpin
{"title":"A finite 3D field simulation method for permittivity gradient implementation of a novel porosification process in LTCC","authors":"A. Talai, Frank Steinhauser, U. Schmid, R. Weigel, A. Bittner, A. Koelpin","doi":"10.1109/MWSYM.2013.6697583","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697583","url":null,"abstract":"High frequency substrates show a manifold variety of complex permittivities for different applications. Recent research results demonstrated the possibility of local decrease of the permittivity on LTCC by chemical etching processes, which enables the design of high quality antennas on LTCC. This paper shows a novel approach on the determination of the quantitative reduction of the effective permittivity by scanning electron microscope analyses in combination with finite 3D field simulations of the resulting inhomogeneous material. By the characterization of two different porosified LTCCs it could be shown that this process is suitable for direct antenna integration on glass-ceramic substrates with enhanced values of relative permittivities.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121811029","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: 10
A self-sustaining, autonomous, wireless-sensor beacon powered from long-range, ambient, RF energy 一个自我维持的，自主的，无线传感器信标，由远程，环境，射频能量供电
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697786
R. Vyas, B. Cook, Y. Kawahara, M. Tentzeris
{"title":"A self-sustaining, autonomous, wireless-sensor beacon powered from long-range, ambient, RF energy","authors":"R. Vyas, B. Cook, Y. Kawahara, M. Tentzeris","doi":"10.1109/MWSYM.2013.6697786","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697786","url":null,"abstract":"A novel embedded sensing and wireless relay mote that powers itself from long range digital TV signals is presented. With an improved antenna, RF-DC circuit, and an energy-aware embedded-firmware design, enough wireless power from a distributed TV tower network can be harnessed for wireless sensor telemetry. A microcontroller and 900 MHz transmitter for the telemetry has been powered on and sustained from ambient TV signals at previously unreported range of 6.5 km from a TV broadcast source.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124275404","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
200 GHz interconnects for InP-on-BiCMOS integration 用于InP-on-BiCMOS集成的200 GHz互连
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697393
I. Ostermay, F. Schmueckle, R. Doerner, A. Thies, W. Heinrich, O. Krueger, V. Krozer, T. Jensen, T. Kraemer, M. Lisker, A. Trusch, E. Matthus, Y. Borokhovych, B. Tillack
{"title":"200 GHz interconnects for InP-on-BiCMOS integration","authors":"I. Ostermay, F. Schmueckle, R. Doerner, A. Thies, W. Heinrich, O. Krueger, V. Krozer, T. Jensen, T. Kraemer, M. Lisker, A. Trusch, E. Matthus, Y. Borokhovych, B. Tillack","doi":"10.1109/MWSYM.2013.6697393","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697393","url":null,"abstract":"In order to combine the advantages of both InP-HBT and SiGe-BiCMOS technology, a 3D integration approach has been developed based on the transferred-substrate concept with BCB wafer bonding. Using this process vertical interconnects are realized that exhibit excellent broadband transmission properties up to 220 GHz. Insertion loss remains below 0.5dB up to W-band and 1dB to 220GHz. The interconnects can be described with good accuracy by 3D EM simulation over the full frequency range.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124263161","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 dual-mode CPW resonator for 60 GHz broadband standing-wave VCO applications 用于60 GHz宽带驻波VCO应用的双模CPW谐振器
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697453
M. Li, R. Amaya, A. Momciu, K. Hettak
{"title":"A dual-mode CPW resonator for 60 GHz broadband standing-wave VCO applications","authors":"M. Li, R. Amaya, A. Momciu, K. Hettak","doi":"10.1109/MWSYM.2013.6697453","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697453","url":null,"abstract":"A novel dual-mode modified differential coplanar waveguide (CPW) resonator, which can be used in millimeter-wave broad-band VCO designs, is presented. A fully-integrated 60 GHz standing-wave VCO based on this new structure was designed, manufactured, and tested. The circuit was fabricated in a 90-nm CMOS technology. The design and measurement results demonstrated that using this new standing-wave resonator with dual-mode differential CPW topology, instead of a traditional LC-tank, can reduce the VCO size, increase the tuning range, and lower the phase noise. Measured results show that the VCO can achieve a tuning range of 7.5%, a Figure Of Merit (FOM) of -183.9 dBc/Hz @10 kHz, and a compact size as small as 350 μm × 550 μm.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"194 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116785469","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 MIM/coaxial stub-line CRLH zeroth-order series-mode resonator used as an RF coil element for 7-Tesla magnetic resonance imaging 一种MIM/同轴短线CRLH零阶串联模谐振器，用作7特斯拉磁共振成像的射频线圈元件
2013 IEEE MTT-S International Microwave Symposium Digest (MTT) Pub Date : 2013-06-02 DOI: 10.1109/MWSYM.2013.6697615
A. Rennings, J. Svejda, S. Otto, K. Solbach, D. Erni
{"title":"A MIM/coaxial stub-line CRLH zeroth-order series-mode resonator used as an RF coil element for 7-Tesla magnetic resonance imaging","authors":"A. Rennings, J. Svejda, S. Otto, K. Solbach, D. Erni","doi":"10.1109/MWSYM.2013.6697615","DOIUrl":"https://doi.org/10.1109/MWSYM.2013.6697615","url":null,"abstract":"A novel MIM/coaxial-stub composite right/left-handed (CRLH) metamaterial transmission-line (TL) structure is proposed. In addition to the common metal-insulator-metal (MIM) series capacitor, a short-circuited coaxial line, which is vertically aligned to the otherwise planar structure, forms the shunt inductor. The zeroth-order (ZO) series mode with its spatially uniform and longitudinally polarized series current of the short-circuited CRLH TL is utilized in the context of RF field excitation in a 7-Tesla magnetic resonance imaging (MRI) scanner. The usage of coaxial stubs instead of sidewise microstrip lines has several advantages, especially for the MRI application, such as a unit cell with smaller width, the unwanted longitudinal magnetic field components excited by the shunt resonantor are shielded by the outer coaxial connector and the upper MIM plate, yielding a high Qsh-to-Qse-ratio (here 250/100), which implies an extremely uniform series current distribution. Here a 40-cm long ZO resonant element for 300 MHz is proposed. FEM eigenmode and FDTD driven-mode full-wave simulation, together with corresponding near-field measurements on fabricated prototypes are presented to comfirm the approach.","PeriodicalId":128968,"journal":{"name":"2013 IEEE MTT-S International Microwave Symposium Digest (MTT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116943986","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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