Man-Lyun Ha, Seong-Ho Shin, Moon-Jung Kim, Ju-Hyun Ko, Young-Se Kwon
{"title":"Oxidation effect on the loss characteristics of CPWs implemented on low resistivity substrate with thick Oxidized Porous Silicon (OPS) layer","authors":"Man-Lyun Ha, Seong-Ho Shin, Moon-Jung Kim, Ju-Hyun Ko, Young-Se Kwon","doi":"10.1109/EUMA.2003.340860","DOIUrl":"https://doi.org/10.1109/EUMA.2003.340860","url":null,"abstract":"Using the general MMIC fabrication process, Coplanar waveguides were implemented on Oxidized Porous Silicon, which were oxidized at several temperature. The effect of oxidation temperature on the loss of CPWs was presented and the loss was decreased with increasing oxidation temperature. These characteristics result from the transformation rate of porous silicon to the thick oxide layer. When the signal line width and spacing were 40¿m and 5¿m, respectively, the insertion loss was about 0.25dB/mm at 18GHz, which was oxidized at 1060oC with wet O2.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124622646","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":"An Inversely Tapered Corrugated CPW","authors":"S. J. Kim, N. Myung","doi":"10.1109/EUMA.2003.340934","DOIUrl":"https://doi.org/10.1109/EUMA.2003.340934","url":null,"abstract":"A novel photonic bandgap (PBG) structure, consisting of inversely tapered slots, is introduced. This structure, which is of low cost and easy design/fabrication, exhibits a low-pass behavior with a compact size and simple working principle. Its performances are demonstrated by simulation and measurement results and the working principle of the PBG is explained.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130867158","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":"A Wideband Phased Array Antenna for SAR Application","authors":"M. Weib, O. Saalmann, J. Ender","doi":"10.1109/EUMA.2003.341002","DOIUrl":"https://doi.org/10.1109/EUMA.2003.341002","url":null,"abstract":"A high resolution synthetic aperture radar (SAR) experimental system called phased array multi-functional imaging radar (PAMIR) is currently under development at FGAN-FHR. This system uses a very high bandwidth and performs a coherent integration along a large synthetic aperture to achieve a very high resolution in the order of one decimeter. PAMIR covers a large angular sector and operates in sophisticated modes using multi-channel signal processing. This variety of tasks can be fulfilled only by use of a wideband phased array antenna. The need for a large bandwidth rises a lot of specific problems which have to be solved in conjunction with it. Now the phased array antenna and the system has come to a first stage allowing gathering radar data using a 24 column element array.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131297933","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}
Seong-Ho Shin, I. Jeong, Ju-Hyun Ko, Man-Lyun Ha, Young-Se Kwon
{"title":"Ka-Band Branch Line Coupler Using High-Performance Air-Buried Microstrip Lines","authors":"Seong-Ho Shin, I. Jeong, Ju-Hyun Ko, Man-Lyun Ha, Young-Se Kwon","doi":"10.1109/EUMA.2003.341120","DOIUrl":"https://doi.org/10.1109/EUMA.2003.341120","url":null,"abstract":"In this paper, a branch line coupler using airburied microstrip lines (ABMSLs) has been monolithically fabricated for millimeter-wave applications. Because the ABMSL structure employs air-dielectric medium and ground conductor walls surrounding strip signal line, it is very effective in reducing a dielectric loss, as well as parasitic coupling between close transmission lines over high frequency range. The fabricated branch line coupler shows a coupling and transmission loss of 3.6 dB and 3.9 dB, respectively at the center frequency of 29GHz. In the frequency range from 26GHz to 32GHz (20% bandwidth), it exhibits a return loss of better than 15 dB and isolation of better than 14 dB.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128848435","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":"Optimal Microwave properties of thin BSTO films for high frequency applications","authors":"A. Tumarkin, S. Razumov, A. Gagarin, A. Kozyrev","doi":"10.1109/EUMA.2003.340861","DOIUrl":"https://doi.org/10.1109/EUMA.2003.340861","url":null,"abstract":"The influence of deposition parameters on microwave properties of BaxSr1-xTiO3 (BSTO) films deposited on alumina substrate has been investigated in a wide frequency range (1-30 GHz). The best combination of high tunability (n) and low losses (tan ¿) at room temperature was obtained for the 30% Ba content target. The best BSTO films exhibited n = 2.1 and tan¿=0.016 at 1 GHz and zero bias. This result is among the best reported for sputtered BSTO on alumina substrates.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121838683","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}
V. Boria, M. Bozzi, D. Camilleri, Á. Coves, Hector Esteban, Benito Gimeno, Marco Guglielmi, L. Polini
{"title":"Contributions to the Analysis and Design of All-Inductive Filters with Dielectric Resonators","authors":"V. Boria, M. Bozzi, D. Camilleri, Á. Coves, Hector Esteban, Benito Gimeno, Marco Guglielmi, L. Polini","doi":"10.1109/EUMC.2003.177712","DOIUrl":"https://doi.org/10.1109/EUMC.2003.177712","url":null,"abstract":"In this work, three modern full-wave methods will be employed for the accurate analysis and efficient design of a novel family of all-inductive filters loaded with dielectric resonators. These techniques are the bi-orthonormal-basis combined with the orthonormal-basis method, the hybrid mode-matching/spectral method, and, finally, the BI-RME (Boundary Integral-Resonant Mode Expansion) method. Then, two prototypes of band-pass filters have been designed in this work using a CAD tool developed in the research groups implicated in this manuscript. The procedure described in this paper only involves a limited number of actual physical parameters at each step so that it is computationally very efficient and rapidly convergent. Improving the performance of the standard all-inductive filters (without dielectric resonators), the novel topologies present a reduction of the volume and a larger band free of spurious, maintaining the low-cost high-precision manufacturing properties.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121999498","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":"Multi-Waveform Full-Polarimetric Video Impulse Radar for Landmine Detection","authors":"A. Yarovoy, A. Schukin, I. Kaploun, L. Ligthart","doi":"10.1109/EUMA.2003.341133","DOIUrl":"https://doi.org/10.1109/EUMA.2003.341133","url":null,"abstract":"A principally new multi-waveform full-polarimetric front-end of a Ground Penetrating Radar has been developed. In comparison with commercially available video impulse GPR systems the key advantages of the front-end are considerably larger bandwidth, ability to measure the polarimetric structure of the scattered field and very high precision of scattered field measurements. A principally new antenna system design and an ability to perform quasi-simultaneous measurements in two different frequency bands with two transmit polarizations are main novelty aspects of the radar.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126701857","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}
A. Simine, V. Piatnitsa, A. Lapshin, E. Jakku, D. Kholodnyak, S. Leppaevuori, I. Vendik
{"title":"Design of Quasi-Lumped-Element LTCC Filters and Duplexers for Wireless Communications","authors":"A. Simine, V. Piatnitsa, A. Lapshin, E. Jakku, D. Kholodnyak, S. Leppaevuori, I. Vendik","doi":"10.1109/EUMA.2003.341110","DOIUrl":"https://doi.org/10.1109/EUMA.2003.341110","url":null,"abstract":"Multilayer integrated circuits using the low temperature cofired ceramics (LTCC) technology are considered as applied to design of microwave filters and duplexers for wireless applications. Different structures of miniature LTCC filters based on quasi-lumped-element resonators are suggested with a special emphasis to filters with additional transmission zeros. Original design of LTCC duplexer for IMT-2000 handsets is presented.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126814149","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":"Coexistence of UWB technology with FWA services","authors":"D. Porcino","doi":"10.1109/EUMA.2003.341088","DOIUrl":"https://doi.org/10.1109/EUMA.2003.341088","url":null,"abstract":"This paper discusses the issue of coexistence between in the frequency band 3.1-10.6 GHz. Introducing services in the frequency band 3.1-10.6 GHz. Introducing simple mitigation factors for a more realistic view of the potential interference effects of UWB techniques, we show full and peaceful coexistence between Fixed Wireless Access (FWA) techniques and UWB transmissions.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126495183","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":"Deterministic Propagation Models for Radio Transmission into Buildings and Enclosed Spaces","authors":"P. Wertz, G. Wolfle, R. Hoppe, F. Landstorfer","doi":"10.1109/EUMA.2003.341142","DOIUrl":"https://doi.org/10.1109/EUMA.2003.341142","url":null,"abstract":"With the growing interest for broadband mobile services in 3rd generation mobile communication networks, the investigation of radio transmission into vehicles and buildings is getting more important. Models for the propagation into vehicles and buildings enable the calculation of the field strength or received power inside these objects. The inner structure of the vehicles (e.g. metal parts) and buildings (inner walls, furniture) as well as the surroundings (other vehicles, buildings) must be considered, and also different construction materials must be taken into account. A deterministic ray tracing approach has been developed, enabling the computation of the transition from an urban scenario to an indoor scenario and vice versa, thus allowing a very accurate computation of the field strength or received power inside vehicles or buildings. Due to the ray tracing technique, the approach can also be utilized to evaluate wideband properties of the mobile radio channel by computing its impulse response. In order to validate such propagation models, measurements inside and outside a building were made.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128700458","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}