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2012 7th European Microwave Integrated Circuit Conference最新文献

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Quasi-octave bandwidth phase matched K/Ka antenna feed subsystem for dual RHCP/LHCP polarization 准倍频带宽相位匹配K/Ka天线馈源子系统的双RHCP/LHCP极化
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459338
A. Mediavilla, J. Cano, K. Cepero
{"title":"Quasi-octave bandwidth phase matched K/Ka antenna feed subsystem for dual RHCP/LHCP polarization","authors":"A. Mediavilla, J. Cano, K. Cepero","doi":"10.23919/EUMC.2012.6459338","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459338","url":null,"abstract":"The architecture concept and fabrication of a quasi-octave bandwidth waveguide feed network for circular polarized antennas is discussed here. The main advantages of this extremely compact topology rely on three key achievements: the instantaneous bandwidth capability, the axial ratio improvement and the significant size reduction which is in many cases determinant in antenna feed subsystems. Experimental measurements exhibit very good agreement with the predicted results given by conventional mode matching techniques. The overall structure provides an axial ratio as low as 0.7 dB along with a return loss better than 25 dB, at every waveguide port, over the whole bandwidth (60%), which represents the today's state-of-the-art. Moreover, yield analysis and simple scaling properties assure the use up to Q band.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122839984","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
An unequal wilkinson power divider with a high dividing ratio 具有高分割比的不均匀威尔金森功率分压器
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459394
Myung-Seok Kang, Young Kim, Y. Yoon
{"title":"An unequal wilkinson power divider with a high dividing ratio","authors":"Myung-Seok Kang, Young Kim, Y. Yoon","doi":"10.23919/EUMC.2012.6459394","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459394","url":null,"abstract":"We present the design and performance of an unequal Wilkinson power divider with a high dividing ratio. To obtain the unequal high-ratio feature, we propose a microstrip line with a periodic shunt open stub to achieve low-impedance lines. The periodic shunt capacitive loading of microstrip lines can be converted a low-impedance line to a high-impedance line because of low effective characteristic impedance and phase velocity. This enables the microstrip line fabrication to be achieved with a low characteristic impedance line of below 10 Ω. As a design example, a 10:1 divider was designed and measured at 1 GHz to show the validity of the unequal divider using periodic open stub. Its performance is in good agreements with the simulated results.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131826713","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: 7
LTCC filter based on via resonators 基于通孔谐振器的LTCC滤波器
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459226
V. Kondratyev, K. Kautio, M. Lahti
{"title":"LTCC filter based on via resonators","authors":"V. Kondratyev, K. Kautio, M. Lahti","doi":"10.23919/EUMC.2012.6459226","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459226","url":null,"abstract":"The concept of a via resonator is first time introduced. The advantages of the implementation of the via resonator compared to planar one are discussed. Then the different types of an interdigital filter that could be realized as via resonator filter (VRF) are considered. The perspectives to manufacture VRF with low temperature co-fired ceramics (LTCC) technology are discussed. Experimental results are presented for several 5-pole VRF to prove the feasibility of the concept considered.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"248 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113981920","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
Compact multi-notched UWB bandpass filter using E-shape microstrip structure 紧凑的多陷口超宽带带通滤波器，采用e型微带结构
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459363
R. T. Hammed, D. Mirshekar-Syahkal
{"title":"Compact multi-notched UWB bandpass filter using E-shape microstrip structure","authors":"R. T. Hammed, D. Mirshekar-Syahkal","doi":"10.23919/EUMC.2012.6459363","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459363","url":null,"abstract":"In order to prevent interference with some selected narrowband communication channels, UWB filters with rejections at these bands are preferred or sometimes necessary for some UWB systems. In this paper, for the first time, a technique for generating rejection notches in the miniaturized UWB filters employing the E-shape microstrip structure is presented. It is shown the attenuated bands can be achieved by capacitively coupling grounded quarter wavelength (λg/4) stub or E-shape microstrip structures to the main filter structure. The performances of a second-order filter with a single rejection notch and a third-order filter with one and two rejection notches are evaluated using an accurate equivalent circuit model as well as by simulation and measurement. The dimensions of the third-order filter are about 4 mm × 4.2 mm × 0.4 mm excluding the feeding ports.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133145217","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
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