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Mode converters for the RF cold test of a 250 GHz CARM cavity 用于250 GHz CARM腔体RF冷测试的模式转换器
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345955
G. Ravera, S. Ceccuzzi, A. Doria, I. Spassovsky, A. Tuccillo, F. Mirizzi
{"title":"Mode converters for the RF cold test of a 250 GHz CARM cavity","authors":"G. Ravera, S. Ceccuzzi, A. Doria, I. Spassovsky, A. Tuccillo, F. Mirizzi","doi":"10.1109/EUMC.2015.7345955","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345955","url":null,"abstract":"Two configurations of mode converters from the TE10 in rectangular waveguide to the TE82 in circular waveguide are designed. Such conversion is required to perform the cold test of a Bragg resonator for a 250 GHz Cyclotron Auto-Resonance Maser under development at the ENEA research center. The cylindrical cavity to be tested is far more oversized than any previous CARM experiments, making the design of mode converters particularly challenging. One conversion chain uses an in-line coupling beat-wave TE11/TE81 converter, whereas the other is a sidewall coupling mode converter. Both require a final, highly oversized, step-type converter from the TE81 to the TE82 mode; its performances are computed with both a commercial software and an in-house mode matching code, whose results agree fairly well. For both configurations, simulation results are presented and the most promising solution is identified.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"134 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":"128548082","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
Early demonstration of a high VSWR microwave coaxial programmable impedance tuner with coaxial slugs 带同轴段塞的高驻波比微波同轴可编程阻抗调谐器的早期演示
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345845
A. Curutchet, A. Ghiotto, Manuel Potereau, M. De matos, S. Frégonèse, E. Kerhervé, T. Zimmer
{"title":"Early demonstration of a high VSWR microwave coaxial programmable impedance tuner with coaxial slugs","authors":"A. Curutchet, A. Ghiotto, Manuel Potereau, M. De matos, S. Frégonèse, E. Kerhervé, T. Zimmer","doi":"10.1109/EUMC.2015.7345845","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345845","url":null,"abstract":"This paper reports a high voltage standing wave ratio (VSWR) impedance tuner with two independent slugs, which slide along a low-loss coaxial line. Impedance tuner are instruments used for characterizing performances of active microwave components and systems, and more particularly for load-pull and source-pull measurement of transistors, power or low noise amplifiers. After presenting the proposed tuner principle, a demonstrator based on a 3.5 mm coaxial line and designed to operate at microwave frequencies from 2 to 18 GHz is introduced. Then, its performances are measured and compared to simulation results. Finally, overall performances are compared to other currently commercialized impedance tuner technologies. Depending on the targeted frequency band, different slugs can be used to obtain an optimal VSWR. Slugs typically offers a 200:1 VSWR. Their dimensions can be optimized in order to achieve very high VSWR in excess of 300:1. The demonstrated tuner is very compact and achieve a minimum repeatability of -40 dB.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"43 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":"116084064","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
MEMS-based switched-capacitor banks for impedance matching networks 阻抗匹配网络中基于mems的开关电容器组
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345939
R. G. Pesel, S. Attar, R. Mansour
{"title":"MEMS-based switched-capacitor banks for impedance matching networks","authors":"R. G. Pesel, S. Attar, R. Mansour","doi":"10.1109/EUMC.2015.7345939","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345939","url":null,"abstract":"This paper presents the design of a 16-state RF MEMS switched-capacitor bank that is used in the implementation of an impedance matching network (IMN). The capacitor bank achieves a wide capacitance tuning range and consequently a wide impedance matching coverage. The IMN is based on co-planar waveguide (CPW) transmission line design and can be included as a standalone chip in dynamically reconfigurable automatic match control circuits used in many wireless devices and applications. The measurement results for both the switched-capacitor bank and the IMN are in good agreement with the simulations thus demonstrating a satisfactory performance in terms of tunability.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"20 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":"125877348","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
A wide-band 16-pole low-insertion-loss UHF bandpass filter for high-power-amplifiers 一种用于大功率放大器的宽带16极低插入损耗超高频带通滤波器
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345922
M. Wolfel, U. Bochtler, T. Eibert, C. Schmitt
{"title":"A wide-band 16-pole low-insertion-loss UHF bandpass filter for high-power-amplifiers","authors":"M. Wolfel, U. Bochtler, T. Eibert, C. Schmitt","doi":"10.1109/EUMC.2015.7345922","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345922","url":null,"abstract":"Wide-band RF-power-amplifiers are becoming more and more popular in wireless systems. Instead of using one power-amplifier for each communication-channel on its own, wide-band amplifiers are able to transmit several carriers simultaneously. The main challenge is the intermodulation-performance of the amplifier, which is degraded by each additional carrier. This paper describes the design, the simulation and realization of a LC UHF band-pass-filter that rejects out-band intermodulation products. The main challenges for the filter design are the steep slopes and the power handling capability up to 100 W which requires especially low insertion-loss in the pass-band.","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":"126563363","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
A 250 GHz hetero-integrated VCO with 0.7 mW output power in InP-on-BiCMOS technology 采用InP-on-BiCMOS技术的输出功率为0.7 mW的250 GHz异质集成压控振荡器
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345782
M. Hossain, N. Weimann, B. Janke, M. Lisker, C. Meliani, B. Tillack, O. Kruger, V. Krozer, W. Heinrich
{"title":"A 250 GHz hetero-integrated VCO with 0.7 mW output power in InP-on-BiCMOS technology","authors":"M. Hossain, N. Weimann, B. Janke, M. Lisker, C. Meliani, B. Tillack, O. Kruger, V. Krozer, W. Heinrich","doi":"10.1109/EUMC.2015.7345782","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345782","url":null,"abstract":"This paper presents a 250 GHz hetero-integrated VCO using InP-on-BiCMOS technology. It consists of a single-ended Colpitts Voltage Controlled Oscillator (VCO) in 0.25 μm SiGe-BiCMOS technology and a common-emitter based frequency tripler in 0.8 μm transferred-substrate (TS) InP-HBT technology, which are combined using a wafer-level BCB bonding process. The VCO operates at 83 GHz and the combined circuit delivers 0.7 mW output power at 250 GHz with 2% tuning range. This result documents recent advances of the hetero integrated process towards THz frequencies.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"66 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":"123481463","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
Quasi-elliptic SIW band-pass filter based on mushroom-shaped resonators 基于蘑菇形谐振腔的准椭圆SIW带通滤波器
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345872
C. Tomassoni, L. Silvestri, M. Bozzi, L. Perregrini
{"title":"Quasi-elliptic SIW band-pass filter based on mushroom-shaped resonators","authors":"C. Tomassoni, L. Silvestri, M. Bozzi, L. Perregrini","doi":"10.1109/EUMC.2015.7345872","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345872","url":null,"abstract":"This paper present a new class of quasi-elliptic pass-band filters, which exhibit compact size and modular geometry. They are based on the use of mushroom-shaped resonators, and find easy application in double-layer substrate integrated waveguide (SIW) structures. The filter exploits non-resonating modes to obtain coupling between non adjacent nodes in the case of in-line geometry. The resulting structure is very compact and capable of transmission zeros. The singlet configuration is first studied, and a simple way to obtain higher order filters design is shown. A 3-pole filter has been designed and manufactured to show the feasibility of the proposed technique.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"32 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":"123533255","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
Design of a surface mounted waveguide filter in substrate integrated waveguide technology 基板集成波导技术中表面贴装波导滤波器的设计
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345874
J. Schorer, J. Bornemann, U. Rosenberg
{"title":"Design of a surface mounted waveguide filter in substrate integrated waveguide technology","authors":"J. Schorer, J. Bornemann, U. Rosenberg","doi":"10.1109/EUMC.2015.7345874","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345874","url":null,"abstract":"In this paper, a novel combination of substrate integrated waveguide (SIW) and surface mounted waveguide (SMW) filter is presented for the purpose of reducing losses in SIW technology. The waveguide filter is comprised of five directly coupled resonators. Since the apertures in the top metallization of the SIW act as input/output inverters, no extra transitions are required to interface the two technologies. The SMW filter is designed for K-band with a 500 MHz bandwidth and a return loss of 20 dB. It is fabricated and measured, and experimental results are in good agreement with simulations. The SMW filter shows insertion losses of 1 - 2 dB which is superior to most SIW filters in this frequency range, while still inheriting most advantages of SIW technology. A tolerance analysis and a study on single resonator loss are presented as well. The final SMW filter design is suitable for integration in PCB sub-circuits boards using standard production lines with pick-and-place automation and reflow solder processes.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"174 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":"116605153","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
High-efficiency low-phase-noise 79-GHz Gunn oscillator module 高效低相位噪声79 ghz Gunn振荡器模块
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345785
Akihiro Nakamura, J. Nikaido, Y. Aoki, Yasushi Shirakata, S. Takase
{"title":"High-efficiency low-phase-noise 79-GHz Gunn oscillator module","authors":"Akihiro Nakamura, J. Nikaido, Y. Aoki, Yasushi Shirakata, S. Takase","doi":"10.1109/EUMC.2015.7345785","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345785","url":null,"abstract":"A high-oscillation-efficiency low-phase-noise 79 GHz Gunn oscillator module has been developed. The Gunn diode chip, which was fabricated on a GaAs substrate, includes an AlGaAs/GaAs electron launcher and a graded transition layer, which reduce the operation voltage. The oscillator uses planar reflector circuits at its anode and cathode to reduce the phase noise. The oscillator module produces an output power of 14.0 dBm (24.7 mW) at 78.9 GHz using a 0.95 W DC power input, and achieves a high oscillation efficiency of 2.5%. Its best phase noise characteristic under free-run oscillation is -107 dBc/Hz at 79 GHz with 1 MHz offset. The temperature dependencies of the oscillation frequency and power were also examined and the overall performance was found to be sufficient for use in 79-GHz radar/sensor applications.","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":"121317231","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
Design and implementation of planar rectenna for ISM-band application ism波段平面整流天线的设计与实现
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345934
Shih-Cheng Lin, C. Hsieh, Chung-Hao Chang, T. Jong
{"title":"Design and implementation of planar rectenna for ISM-band application","authors":"Shih-Cheng Lin, C. Hsieh, Chung-Hao Chang, T. Jong","doi":"10.1109/EUMC.2015.7345934","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345934","url":null,"abstract":"In this study, the detachable planar rectennas for ISM band have been designed and implemented on the low-cost FR4 board. The proposed rectennas consist of a receiving antenna array and an efficient rectifier. To effectively capture the RF power in the air, a high-gain quasi-Yagi antenna array is adopted. As for the rectifier part, the harmonics-suppression design process has been proposed to improve RF-to-DC conversion efficiency. Specifically, three rectifiers are accomplished with relatively good efficiency (39%, 50%, and 52%, respectively). In practice, the rectennas are found useful in many aspects, such as serving low-power supplies, measuring the antenna radiation patterns, and etc.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"340 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":"123319869","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: 9
Dual-purpose microwaves application: Blood sensing and self-blood treatment 双用途微波应用:血液传感和自我血液治疗
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345889
K. Arkhypova, A. Nosatov, P. Krasov, A. Fisun, M. Nurushev, V. Malakhov
{"title":"Dual-purpose microwaves application: Blood sensing and self-blood treatment","authors":"K. Arkhypova, A. Nosatov, P. Krasov, A. Fisun, M. Nurushev, V. Malakhov","doi":"10.1109/EUMC.2015.7345889","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345889","url":null,"abstract":"Current paper describes the experimental dual-purpose application of microwaves in a controlled clinical trial on optimizing therapy for chronic neurological disorders. As a part of integrated treatment, low-intensity microwave-assisted blood modification has been used. It represents a physiotherapeutic method based on the autologous blood transfusion (self-blood treatment) after the short-term exposure to microwaves (λ = 7.2 mm). Because of beneficial clinical impact of the microwave autohemotherapy previously observed, we aimed to find a possible way to track a manifestation of nonthermal microwave effects. For this purpose, we have applied a microwave single-frequency (λ = 7.6 mm) dielectrometry technique as a tool for blood sensing. Also, we used the osmotic fragility test to detect the membrane-receptor activity level using patients' red blood cells before and after the course of therapy. Our preliminary results have shown an enhancement of blood cell reactivity and a clearly defined tendency to normalizing parameters under study in those patients who received the integrated treatment. By analyzing the data obtained by different methods, we have revealed that characteristics are well correlated.","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":"131230655","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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