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2009 European Microwave Conference (EuMC)最新文献

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Compact integrated slot array antennas for the 79 GHz automotive band 用于79 GHz汽车频段的紧凑型集成槽阵列天线
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.1017/S1759078710000486
L. Pettersson, Shi Cheng, Michael Salter, A. Rydberg, D. Platt
{"title":"Compact integrated slot array antennas for the 79 GHz automotive band","authors":"L. Pettersson, Shi Cheng, Michael Salter, A. Rydberg, D. Platt","doi":"10.1017/S1759078710000486","DOIUrl":"https://doi.org/10.1017/S1759078710000486","url":null,"abstract":"This paper presents two compact slot array antennas for the 79 GHz automotive band integrated into a 28 um thick benzocyclobutene (BCB) substrate attached to a 325 um thick 5–20 Ωcm bulk resistivity silicon wafer. The two antennas are a transmit (TX) 1×8 slot array antenna with a size of 1×23 mm and a receive (RX) 8×8 slot array antenna with a size of 15×23 mm. Promising performance has been measured with the TX and RX sub-array antennas (gain >4 dBi) with good matching to 50 Ω (RL>10 dB) in the frequency range 70–90 GHz. By using a metal cavity, mounted on the back of the antenna, parallel plate modes could be reduced and the gain could also be increased by 2dB. The measured and the simulated results are consistent.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"224 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124472918","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
Waveguides modeling by analytical regularization method 基于解析正则化方法的波导建模
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296073
O. Suvorova, Y. Tuchkin
{"title":"Waveguides modeling by analytical regularization method","authors":"O. Suvorova, Y. Tuchkin","doi":"10.23919/eumc.2009.5296073","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296073","url":null,"abstract":"Mathematically strong and numerically efficient approach for waveguides and cylindrical resonators of arbitrary profile simulation is suggested. The approach is based on new implementation of Analytical Regularization Method. Numerical simulation of the waveguides and resonators for E-(TM-) polarized waves demonstrates the method efficiency and reliability.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125738342","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 compact DGS load-network for highly efficient class-E power amplifier 一种用于高效e类功率放大器的紧凑DGS负载网络
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296209
Heungjae Choi, S. Shim, Y. Jeong, Jongsik Lim, C. Kim
{"title":"A compact DGS load-network for highly efficient class-E power amplifier","authors":"Heungjae Choi, S. Shim, Y. Jeong, Jongsik Lim, C. Kim","doi":"10.23919/eumc.2009.5296209","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296209","url":null,"abstract":"A 20W class-E power amplifier (PA) with compact defected ground structure (DGS) load-network is presented for WCDMA base-station application. From the experiments, the proposed class-E PA achieves maximum power added efficiency (PAE) of 70.2 % at the output power of 43.05 dBm with the saturation gain of 12.7 dB. Harmonics are well below −46 dBc for 2nd harmonic and −52 dBc for 3rd, 4th, and 5th harmonics through the 8 dB output dynamic range. Comparing the complexity and the size, the proposed DGS load-network is much simpler and smaller than the conventional load-network with a number of open stubs, ensuring comparable harmonic load impedance and amplifier performance.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125968357","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: 20
Broadband single-layer triple-resonance microstrip reflectarray antennas 宽带单层三共振微带反射天线
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296352
H. Deguchi, K. Mayumi, M. Tsuji, Takahiro Nishimura
{"title":"Broadband single-layer triple-resonance microstrip reflectarray antennas","authors":"H. Deguchi, K. Mayumi, M. Tsuji, Takahiro Nishimura","doi":"10.23919/eumc.2009.5296352","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296352","url":null,"abstract":"This paper presents single-layer microstrip reflec-tarray antennas based on triple-resonance behavior and also discusses their broadband characteristics. The reflection phase properties can be evaluated by using infinite arrays of a rectangular cell consisting of three elements with different dimensions. Appropriate three elements for obtaining arbitrary phase value are determined by taking account of both range of the phase shift at the centre frequency and its slope for the frequency characteristics. We design various reflectarrays with a main beam in a specified direction and also evaluate the frequency characteristics. Finally, the effectiveness of the designed antenna is verified by calculated and measured results around 10–19 GHz.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124665980","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
A mixed-signal X-band SiGe multi-function control MMIC for phased array radar applications 混合信号x波段SiGe多功能控制MMIC相控阵雷达应用
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296288
D. Carosi, A. Bettidi, A. Nanni, L. Marescialli, A. Cetronio
{"title":"A mixed-signal X-band SiGe multi-function control MMIC for phased array radar applications","authors":"D. Carosi, A. Bettidi, A. Nanni, L. Marescialli, A. Cetronio","doi":"10.23919/eumc.2009.5296288","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296288","url":null,"abstract":"In this paper is reported the design, fabrication and test of a mixed-signal SiGe X-band multi-function control MMIC for phased array radar applications. Said MMIC, fabricated, with the ST-Microelectronics BiCMOS7RF SiGe technology, comprises a 5-bit phase shifter, 5-bit attenuator, SPDT switches, several gain amplifiers and a digital serial to parallel converter to reduce the number of MMIC I/O control lines. The gain amplifiers are implemented using SiGe HBTs, while phase shifter, attenuator and SPDT switches are based on CMOS transistors. The measurement results show a return loss better than 15 dB and a gain of 17 dB, equal in both RX and TX state. In RX mode the obtained noise figure is lower than 10 dB, while in TX mode the output P1dB is higher than 12 dBm. The achieved RF performance, the low power consumption and associated low cost, make this SiGe control-chip an attractive solution for high performance/low cost Tx/Rx components for phased array radar applications.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124762970","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: 38
Effects of atmospheric precipitation on spaceborne synthetic aperture radar measurements 大气降水对星载合成孔径雷达测量的影响
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296329
F. Marzano, S. Mori, N. Pierdicca, L. Pulvirenti, J. Weinman
{"title":"Effects of atmospheric precipitation on spaceborne synthetic aperture radar measurements","authors":"F. Marzano, S. Mori, N. Pierdicca, L. Pulvirenti, J. Weinman","doi":"10.23919/eumc.2009.5296329","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296329","url":null,"abstract":"Unlike space-based near-nadir viewing radars, X-SARs will mainly measure the slant-path integrated scattering and attenuation of precipitation in orthogonal oblique directions. A microwave model for simulating the normalized Radar Cross Section (NRCS) SAR response was set up in this work and exploited to train the proposed X-SAR retrieval algorithms. The rain-cloud 2-D shape was modeled as product of a horizontal and a vertical distribution function. An inversion approach, based on the Volterra Integral Equatio (VIE), was applied to a X-SAR/SIR-C case study. The VIE approach is a mathematically elegant way to treat the SAR inverse problem, but it needs to be generalized to vertically- inhomogeneous media to be useful in atmospheric applications.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128239395","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
Power absorption in the body of a cameraman exposed to the electromagnetic field emitted from a digital radio-camera 暴露在数码无线相机发出的电磁场中的摄影师身体的能量吸收
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.1109/EUMC.2009.5296525
P. Bernardi, M. Cavagnaro, Mario La Rosa, S. Pisa, E. Piuzzi
{"title":"Power absorption in the body of a cameraman exposed to the electromagnetic field emitted from a digital radio-camera","authors":"P. Bernardi, M. Cavagnaro, Mario La Rosa, S. Pisa, E. Piuzzi","doi":"10.1109/EUMC.2009.5296525","DOIUrl":"https://doi.org/10.1109/EUMC.2009.5296525","url":null,"abstract":"In this paper, exposure of a cameraman to the electromagnetic emissions from a standard wireless digital camera are studied. Two typical operating conditions, namely the camera leaned on the operator's shoulder or held up in front of the groin, are analyzed. The obtained results show that power absorption inside the cameraman body, in terms of specific absorption rate (SAR), is well below the limit for both occupational and general public exposure currently issued by European regulations. However, if a video booster unit is added to the camera, European SAR restrictions for general public exposure might be exceeded.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129978552","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
Circular polarized patch antenna for 5.8 GHz dedicated short-range communication 圆形极化贴片天线，用于5.8 GHz专用短距离通信
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296236
Daniel Megnet, H. Mathis
{"title":"Circular polarized patch antenna for 5.8 GHz dedicated short-range communication","authors":"Daniel Megnet, H. Mathis","doi":"10.23919/eumc.2009.5296236","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296236","url":null,"abstract":"A circular polarized patch antenna for the 5.8 GHz dedicated short-range communication (DSRC) band is proposed. This frequency band includes road transport and traffic telematics (RTTT) applications, which impose severe cost and size limitations on microwave RTTT devices. The patch antenna is based on low-cost, but lossy, FR-4 material. It consists of a rectangular radiator patch, which is fed by a single feed point, Because of the size limitations, detuning and power loss caused by the device case are taken into consideration. A design method for the antenna, which is based on EM simulations and equations, is given. The proposed 5.8 GHz patch antenna shows low sensitivity to manufacturing tolerances. EM simulation results are compared to theoretical considerations and measurements results. Special attention has been given to the radiation pattern and cross-polarization ratio, which both are regulated by RTTT standards.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130566492","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
A broadband standing wave RF interferometer for fast and low-cost spectral analysis 宽带驻波射频干涉仪用于快速和低成本的频谱分析
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296266
S. Hemour, F. Podevin, P. Xavier
{"title":"A broadband standing wave RF interferometer for fast and low-cost spectral analysis","authors":"S. Hemour, F. Podevin, P. Xavier","doi":"10.23919/eumc.2009.5296266","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296266","url":null,"abstract":"A new type of spectrum analyzer (SWIFTS) based on RF interferometry using a low-cost microstrip technology is presented. The acronym SWIFTS was chosen for Stationary Waves Integrated Fourier Transform Spectrometer. The SWIFTS enables both broadband and fast measurements. It consists of a waveguide ended by a short circuit. Power detectors are periodically spaced along the standing wave to sample the signal. The spectrum is obtained with a Fourier transform calculation. A 0.3–5 GHz prototype was built to validate the concept. Measurements on a real cellular phone are presented and discussed.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130725047","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
Radiation from an open-ended parallel plate waveguide with a ferrite plug 带铁氧体插头的开放式平行板波导的辐射
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296178
K. Nishimura
{"title":"Radiation from an open-ended parallel plate waveguide with a ferrite plug","authors":"K. Nishimura","doi":"10.23919/eumc.2009.5296178","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296178","url":null,"abstract":"As described in this paper, radiation characteristics of an open ended parallel plate waveguide radiator with a ferrite plug loaded in the radiating end are analyzed using a mode-matching-method-of-moments technique. Results show theoretically how the characteristics can be tuned and the radiation beam scanning property can be controlled by varying the dc magnetic field applied to the ferrite.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129183825","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
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