M. Martinez-Mendoza, A. Wentzel, W. Heinrich, Alejandro Álvarez Melcón
{"title":"Design of a triband lumped element filter for digital microwave power amplifiers","authors":"M. Martinez-Mendoza, A. Wentzel, W. Heinrich, Alejandro Álvarez Melcón","doi":"10.1109/EUMC.2015.7345886","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345886","url":null,"abstract":"In this paper, a compact lumped element triband reconstruction filter for digital microwave power amplifier (PA) applications in the 0.8, 1.8 and 2.6 GHz band is presented. The proposed design introduces three first order passbands with additional transmission zeros for maximum isolation between bands. Detailed equations are presented for a systematic design of the filter. In contrast to common filter designs, the input characteristic impedance is optimized broadband to values different from 50Ω as is required for proper amplifier operation. The presented design strategy can be easily extended to multiband filters of higher orders. Insertion losses of 0.8 dB, 1.4 dB and 0.9 dB are achieved at 0.8 GHz, 1.64 GHz and 2.22 GHz, respectively. The filter shows a 3 dB bandwidth of 290 MHz in the 0.8 and 1.8 GHz band and almost 1 GHz in the 2.6 GHz region. The prototype represents the first triband filter suitable for proper digital RF PA operation.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129771321","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}
{"title":"Broadband measurement of complex permittivity for liquids via the open-ended cut-off waveguide reflection method using a large-bore connector","authors":"K. Shibata, Masaki Kobayashi","doi":"10.1109/EUMC.2015.7345929","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345929","url":null,"abstract":"In this study, the complex permittivity of certain types of liquid were measured using the large-bore-type open-ended circular waveguide reflection method with an N connector. The effectiveness of the proposed approach for measuring a liquid with high permittivity and high loss was also confirmed by comparing the measurement results with those obtained using the SMA connector-type open-ended cut-off circular waveguide reflection method and the open-ended coaxial line reflection method with an SMA connector.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128312638","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}
Hong-Yu Hsu, Beng-Meng Chen, Yen-Heng Lin, Zuo‐Min Tsai, Yung-Ysiang Chiang, M. Chiu, Chien-Feng Kao, Shih-Cheng Lin
{"title":"Harmonic radar using multiple receivers and angle of arrival positioning technique for environment with obstacles","authors":"Hong-Yu Hsu, Beng-Meng Chen, Yen-Heng Lin, Zuo‐Min Tsai, Yung-Ysiang Chiang, M. Chiu, Chien-Feng Kao, Shih-Cheng Lin","doi":"10.1109/EUMC.2015.7345928","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345928","url":null,"abstract":"A harmonic radar system can easily locate transponders. However, the use of conventional harmonic radar systems is limited in environments with many obstacles such as a forest. To solve this problem, this paper proposes a harmonic radar system that can avoid obstacles in environments using multiple low-cost receivers and transmitters. Experimental results show that this system can determine the location of a transponder even in a forest full of obstacles.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114072711","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}
Cherif Hamidou Sy, S. Bosse, S. Barth, S. R. Harison
{"title":"Design of a differential diplexer based on integrated active inductors with 0.25 µm SiGeC process","authors":"Cherif Hamidou Sy, S. Bosse, S. Barth, S. R. Harison","doi":"10.1109/EUMC.2015.7345908","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345908","url":null,"abstract":"This paper proposes the design of a differential diplexer based on integrated active inductors with the QUBiC4Xi library which is a 0.25 μm SiGeC process of NXP. It is dedicated to dense aperture arrays for the radio astronomy project SKA (Square Kilometre Array). The proposed system allows transmitting digital data as control command type via a RF (radio frequency) cable and isolating digital and RF bands. The RF signals operate in the [300 - 1500] MHz frequency band and the digital in the [10 - 20] MHz band. In this work, Agilent ADS (Advanced Design System) is used for design and simulations, and Cadence for the layout. The simulation results show that the RF gain is about -0.9 dB, its losses lower than 5.5 dB. The harmonics rejection coming from digital signals is better than 185 dB from 300 MHz with a digital clock of 10 MHz and its available voltage gain equals to 0 dB in the [10 - 20] MHz band.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114311181","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}
R. Giofré, P. Colantonio, E. Cipriani, R. Danieli, F. Giannini, L. González, F. De Arriba, L. Cabrìa, D. Baglieri
{"title":"A first step towards a 230W SSPA for Galileo System exploiting European GaN technology","authors":"R. Giofré, P. Colantonio, E. Cipriani, R. Danieli, F. Giannini, L. González, F. De Arriba, L. Cabrìa, D. Baglieri","doi":"10.1109/EUMC.2015.7345976","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345976","url":null,"abstract":"This paper describes the preliminary results attained in the framework of the European Project named SLOGAN. It aims to develop, using European GaN-HEMT technology, a ready-to-fly 230 W solid state power amplifier (SSPA) for space borne Galileo System. The idea is to offer a valid alternative to replace travelling wave tube amplifiers with more compact and reliable systems. All the SSPA functionalities, i.e. power supply, power conditioning and RF amplification, are integrated in the developed architecture and accommodate in a unique box with limited volume and mass. The required output power level is achieved by parallelizing several GaN die power bars of 12 mm and/or 26.5 mm. Test results on preliminary prototypes have shown efficiency levels higher than 68% with less than 3dB of compression in the wall E1-Band.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126369973","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}
{"title":"Zero-IF radar signal processing","authors":"Stefano Turso, T. Bertuch","doi":"10.1109/EUMC.2015.7346068","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7346068","url":null,"abstract":"In this paper, a zero-IF radar architecture is presented. An agile prototyping environment is shown, based on the capabilities of modern instrumentation complemented by COTS components and minimal custom circuitry. Receiver sensitivity improvements based on the oversampling and antipodal modulation techniques are described.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"380 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121698073","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}
M. Hossain, K. Nosaeva, B. Janke, N. Weimann, O. Krueger, V. Krozer, W. Heinrich
{"title":"An efficient 290 GHz harmonic oscillator in transferred-substrate InP-DHBT technology","authors":"M. Hossain, K. Nosaeva, B. Janke, N. Weimann, O. Krueger, V. Krozer, W. Heinrich","doi":"10.1109/EUMC.2015.7345895","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345895","url":null,"abstract":"This paper presents a single-ended efficient 290 GHz harmonic oscillator, realized using 0.8 μm transferred-substrate (TS) InP-DHBT technology. The architecture of this oscillator is based on a third harmonic generation from a fundamental differential cross-coupled topology. The oscillator delivers -8.5 dBm output power. DC consumption is only 28 mW from a 1.5 volts power supply, which corresponds to 0.5 % overall DC-to-RF efficiency. To the authors' knowledge, this is the highest DC-to-RF efficiency harmonic oscillator beyond the 220 GHz frequency band published so far.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133428264","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}
F. Rohrl, Johannes Jakob, W. Bogner, Daniel Hageneder
{"title":"Wideband RF interconnects for organic chip packages comparison of single ended and differential transitions","authors":"F. Rohrl, Johannes Jakob, W. Bogner, Daniel Hageneder","doi":"10.1109/EUMC.2015.7345880","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345880","url":null,"abstract":"Embedding of semiconductor chips into organic substrates allows a cheap and high degree of miniaturization. For RF applications the connection between chip and package is as important as the connection between package and baseboard. This paper presents both single ended and differential transitions for RF packages with special reference to what should be considered when using organic printed circuit boards (PCBs). Because of the fully impedance controlled design process the presented transitions can be used from DC to 60 GHz and guarantee best signal integrity. In addition a fast and flexible measurement of the package - baseboard transition is shown by the use of a specific contact structure. Moreover it is figured out how the discontinuities of the interconnect structure of the chip package can be localized in detail using TDR measurements.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123166507","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}
C. Mandel, M. Schubler, M. Nickel, B. Kubina, R. Jakoby, Maximilian Popperl, M. Vossiek
{"title":"Higher order pulse modulators for time domain chipless RFID tags with increased information density","authors":"C. Mandel, M. Schubler, M. Nickel, B. Kubina, R. Jakoby, Maximilian Popperl, M. Vossiek","doi":"10.1109/EUMC.2015.7345709","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345709","url":null,"abstract":"This paper introduces three novel passive phase modulators for entirely electromagnetic chipless time domain RFID tags. The modulators overcome limitations of earlier approaches and allow for a highly increased signal space coverage, and, therefore, the implementation of high order PSK or QAM schemes. All three modulators are studied in theory and practically implemented up to a 16-PSK on a reconfigurable prototype tag with 4 modulation stages, realizing a 16 bit information content. Besides showing the measurement results, the assets and drawbacks of the three approaches are carefully compared and the achieved information density is related with approaches from literature.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"05 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127864096","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}
{"title":"Reflectometer calibration with a pair of partially known standards","authors":"A. Arsenovic, R. Weikle, J. Hesler","doi":"10.1109/EUMC.2015.7345766","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345766","url":null,"abstract":"We present a closed form solution to reflectometer self-calibration that allows for two partially known standards. The solution is developed explicitly for a pair lossless reflects standards, but could be applied to any calibration set with similar constraints. Related techniques presented previously are simplified in the new formulation and shown to be special cases of a more general solution. The procedure is based upon the cross-ratio invariance of a Möbius transformation.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124584962","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}