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Ultra linear C-band MMIC power amplifiers with 50dbm OIP3 超线性c波段MMIC功率放大器，50dbm OIP3
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296354
J. Leckey, A. Alexander
{"title":"Ultra linear C-band MMIC power amplifiers with 50dbm OIP3","authors":"J. Leckey, A. Alexander","doi":"10.23919/eumc.2009.5296354","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296354","url":null,"abstract":"Two 4W PA MMICs have been developed which cover bandwidths of 5.5–7.1GHz and 7.1–8.5GHz and which demonstrate OIP3 figures of 50dBm at up to 1W total two tone output power from a bias of 8V, 1300mA. The MMICs were fabricated using a highly linear 0.5um GaAs HFET process and packaged in a plastic molded 6mm QFN package. Interpolation of a comprehensive matrix of two tone load pull data was used to set the design target output and driver stage load impedances over bandwidth for the two stage design. The resulting ratio of OIP3 to P1dB is typically 16dB. A thermal design approach guided by finite element analysis and IR spectroscopy measurement was used. To the authors knowledge this is a significant improvement in OIP3 linearity over any other reported multi-stage MMIC amplifier operating at C band.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"20 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":"133039117","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
Calibration of broadband double-ridged guide horn antenna by considering phase center 考虑相位中心的宽带双脊导喇叭天线标定
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296093
K. Harima
{"title":"Calibration of broadband double-ridged guide horn antenna by considering phase center","authors":"K. Harima","doi":"10.23919/eumc.2009.5296093","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296093","url":null,"abstract":"The far-field gain of double-ridged guide horn antennas is determined by using the three-antenna method considered the phase center. The phase center is calculated using the finite integration method. The gain measured using the phase center is in good agreement with the theoretical value. The experimental results show the efficacy of using the phase center for antenna calibration.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"509 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":"133847883","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
Defected and floating ground structures for vertical interconnects 垂直互连的缺陷和浮动地面结构
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296401
A. Stark, H. Olbert, A. Jacob
{"title":"Defected and floating ground structures for vertical interconnects","authors":"A. Stark, H. Olbert, A. Jacob","doi":"10.23919/eumc.2009.5296401","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296401","url":null,"abstract":"Defected and floating ground structures for vertical interconnects are investigated up to the E-band. For quasi symmetrical microstrip-to-microstrip (MS-to-MS) transitions the effect of shape and size of ground plane cutouts is studied. In addition, floating ground pads are proposed to enhance the matching of asymmetrical microstrip-to-stripline (MS-to-SL) transitions. All examined interconnects are quite insensitive to the influence of the environment and can thus be used in densely packed multilayer applications. The agreement between simulation and measurements confirms the concepts.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"30 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":"130366860","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
Design and modeling of GaAs/AlGaAs nonlinear waveguides by Hertzian potential formulation 基于赫兹势公式的GaAs/AlGaAs非线性波导设计与建模
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296445
A. Massaro, V. Tasco, M. Todaro, R. Cingolani, M. de Vittorio, A. Passaseo
{"title":"Design and modeling of GaAs/AlGaAs nonlinear waveguides by Hertzian potential formulation","authors":"A. Massaro, V. Tasco, M. Todaro, R. Cingolani, M. de Vittorio, A. Passaseo","doi":"10.23919/eumc.2009.5296445","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296445","url":null,"abstract":"We present in this work the design of second harmonic generation process in χ<sup>(2)</sup> nonlinear waveguides by a new time domain simulator. The presented Hertzian potential formulation (HPF) is applied to quasi-phase-matched GaAs/AlGaAs nonlinear waveguide with dielectric discontinuities. With the introduction of the presented rigorous time domain method it is possible to represent the physical phenomena such as light propagation and second harmonic generation (SHG) process inside a nonlinear optical device with a good convergent solution and low computational cost. We first check the convergence of the HPF approach by comparing the numerical results with experimental ones for a GaAs/AlGaAs nonlinear waveguide with a fundamental mode at λ<inf>FU</inf>=1.955 μm coupled to a coprapagating second-harmonic SH mode (λ<inf>SH</inf>=9.775 μm) through an appropriate nonlinear susceptibility coefficient. Then we apply the modelling to a GaAs/AlGaAs ridge waveguide with λ<inf>FU</inf>=1.55 μm and λ<inf>SH</inf>=0.775 μm by evaluating the second harmonic conversion efficiency versus the waveguide length. The model is generic and can be applied also to periodic microwave waveguides.","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":"114420620","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
5W, 0.35–8 GHz linear power amplifier using GaN HEMT 5W, 0.35-8 GHz GaN HEMT线性功率放大器
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5295942
A. Sayed, A. A. Tanany, G. Boeck
{"title":"5W, 0.35–8 GHz linear power amplifier using GaN HEMT","authors":"A. Sayed, A. A. Tanany, G. Boeck","doi":"10.23919/eumc.2009.5295942","DOIUrl":"https://doi.org/10.23919/eumc.2009.5295942","url":null,"abstract":"In this paper, a 0.35–8 GHz, 5 W, linear power amplifier based on GaN HEMT die is reported. Load pull characterization was used to optimize the power performance in the operating bandwidth. 3D-EM simulations were also performed to model the coaxial 50 Ohm connections, bond wires and matching networks resulting in an excellent agreement between simulations and measurements. Regarding the performance, the designed single stage PA has exhibited 9 ± 1 dB gain, an output power (Pout) of greater than 37 dBm (5 W), worst power added efficiency (PAE) of 20 % over a multi-octave (0.35–8 GHz) bandwidth. The PA has been also fully characterized from the linearity point of view based on single-tone (AM/AM, AM/PM) and two-tone techniques (with 100 kHz frequency spacing). An AM/AM and AM/PM distortions of only ± 0.5 [dB/dB] and ± 2 [dB/deg] at 8 GHz have been observed. As a measure of linearity in two-tone performance an output third-and second- order intercept points (OIP3, OIP2) have been extracted over the whole bandwidth. An OIP3 of ≥ 49 dBm and OIP2 of ≥ 67 dBm can be achieved.","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":"115290461","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: 28
Conference sessions matrix 会议场次矩阵
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296207
{"title":"Conference sessions matrix","authors":"","doi":"10.23919/eumc.2009.5296207","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296207","url":null,"abstract":"","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"442 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":"123200025","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
Packaging technologies for highly integrated 77 GHz automotive radar sensors 用于高集成77 GHz汽车雷达传感器的封装技术
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296534
M. Mayer, K. Baur, T. Walter
{"title":"Packaging technologies for highly integrated 77 GHz automotive radar sensors","authors":"M. Mayer, K. Baur, T. Walter","doi":"10.23919/eumc.2009.5296534","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296534","url":null,"abstract":"The availability of SiGe with transit frequencies exceeding 200 GHz enables highly integrated and cost effective 77 GHz radar sensors for automotive applications. A major challenge for future radar generations is the development of an appropriate packaging technology. We propose a system in package approach (SIP) utilizing a SMD package without external 77 GHz connections. Beamforming is possible with dielectric lenses permitting the use of this modular concept in different automotive applications.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"200 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":"124470693","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
Design of fully printable planar chipless RFID transponder with 35-bit data capacity 35位数据容量的全可打印平面无芯片RFID转发器设计
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.1109/EUMC.2009.5296182
S. Preradovic, N. Karmakar
{"title":"Design of fully printable planar chipless RFID transponder with 35-bit data capacity","authors":"S. Preradovic, N. Karmakar","doi":"10.1109/EUMC.2009.5296182","DOIUrl":"https://doi.org/10.1109/EUMC.2009.5296182","url":null,"abstract":"A fully printable, passive and planar chipless RFID transponder is presented. The chipless tag encodes data into the spectral signature using a multiresonator. Both amplitude and phase components of the spectral signature are used for data encoding. The tag comprises of a microstrip multiresonating circuit with 35 spiral resonators and two cross-polarized transmitting and receiving circular UWB monopol antennas. The chipless tag has potentials for low cost item tagging such as banknotes and secured documents.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"209 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":"122993115","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: 170
A 1-bit digital dynamically biased power amplifier for step envelope tracking transmitters 用于阶跃包络跟踪发射机的1位数字动态偏置功率放大器
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296202
A. Cidronali, I. Magrini, R. Fagotti, M. Mercanti, G. Manes
{"title":"A 1-bit digital dynamically biased power amplifier for step envelope tracking transmitters","authors":"A. Cidronali, I. Magrini, R. Fagotti, M. Mercanti, G. Manes","doi":"10.23919/eumc.2009.5296202","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296202","url":null,"abstract":"This paper focuses and provides experimental data for a 1-bit step envelope tracking power amplifier as a suitable solution to enhance the average PAE for wide dynamic signals. The PA is based on an active core realized combining SiGe HBTs with different sizes, which shows a peak CW PAE around 38% for the state 1 and 42% for state 2 respectively when terminated with optimum terminations. The 1-bit step envelope tracking architecture and its digital predistortion algorithm were implemented in a laboratory test bench. The experimental characterization demonstrates the capability of the proposed system to provide a factor two of improvement in terms of average PAE, without limitation of other signal parameters. Experimental validation is reported for a 2 MHz multi-sine signal with 5.5dB PAR at 2.074 GHz and for a 17 dBm output total power.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"35 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":"123550284","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 wideband slotted waveguide antenna for SAR systems 用于SAR系统的宽带开槽波导天线
2009 European Microwave Conference (EuMC) Pub Date : 2009-09-01 DOI: 10.23919/eumc.2009.5296234
S. Sekretarov, D. Vavriv
{"title":"A wideband slotted waveguide antenna for SAR systems","authors":"S. Sekretarov, D. Vavriv","doi":"10.23919/eumc.2009.5296234","DOIUrl":"https://doi.org/10.23919/eumc.2009.5296234","url":null,"abstract":"Possibilities for the extension of the operational frequency band of slotted waveguide antennas are studied. It is shown that by using both conventional longitudinal slots and subarraying techniques it is possible to reach the relative bandwidth of about 15%. This result is illustrated by the development of a novel slotted waveguide antenna for high-resolution SAR applications. The antenna operates in the X-band and forms the beam of 4°×6° with the gain of about 30 dB.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"27 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":"123646570","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
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