Pub Date : 2015-04-27DOI: 10.1109/IVEC.2015.7224021
Zhou Rong-mei, Fang Li, Z. Fang, Zhang Pan-an
This article describes a photomultiplier, which has the characteristics of very high sensitivity and very low noise. With the ceramic-metal structure, the tube offers a superior resistance to the damage caused by strong vibration and shock.
{"title":"A ceramic-metal seal photomultiplier with the resistance to extra high vibration and shock","authors":"Zhou Rong-mei, Fang Li, Z. Fang, Zhang Pan-an","doi":"10.1109/IVEC.2015.7224021","DOIUrl":"https://doi.org/10.1109/IVEC.2015.7224021","url":null,"abstract":"This article describes a photomultiplier, which has the characteristics of very high sensitivity and very low noise. With the ceramic-metal structure, the tube offers a superior resistance to the damage caused by strong vibration and shock.","PeriodicalId":435469,"journal":{"name":"2015 IEEE International Vacuum Electronics Conference (IVEC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128840651","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}
Pub Date : 2015-04-27DOI: 10.1109/IVEC.2015.7223784
N. Ryskin, T. A. Karetnikova, A. Rozhnev, G. Torgashov, N. A. Bushuev, P. Shalaev
Results of research aimed on development of miniaturized O-type medium power sheet beam amplifier in sub-THz band are presented. Dispersion characteristics and coupling impedances for planar grating slow-wave structures (SWS) are calculated. The double-grating half-period staggered SWS circuit is designed and fabricated.
{"title":"Development and modeling of a sheet-beam sub-THz traveling wave tube","authors":"N. Ryskin, T. A. Karetnikova, A. Rozhnev, G. Torgashov, N. A. Bushuev, P. Shalaev","doi":"10.1109/IVEC.2015.7223784","DOIUrl":"https://doi.org/10.1109/IVEC.2015.7223784","url":null,"abstract":"Results of research aimed on development of miniaturized O-type medium power sheet beam amplifier in sub-THz band are presented. Dispersion characteristics and coupling impedances for planar grating slow-wave structures (SWS) are calculated. The double-grating half-period staggered SWS circuit is designed and fabricated.","PeriodicalId":435469,"journal":{"name":"2015 IEEE International Vacuum Electronics Conference (IVEC)","volume":"121 24","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131912398","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}
Pub Date : 2015-04-27DOI: 10.1109/IVEC.2015.7223737
S. Liang, L. Ang
We discover the new scaling of thermionic emission of graphene and then establish a fundamental Schottky diode equation for Graphene/Semiconductor (Gr/S) contact. We also discuss the contact resistance of Gr/S junction. The new physics law discovered in this work has been confirmed by experiments.
{"title":"Discovery of fundamental Graphene/Semiconductor Schottky diode equation","authors":"S. Liang, L. Ang","doi":"10.1109/IVEC.2015.7223737","DOIUrl":"https://doi.org/10.1109/IVEC.2015.7223737","url":null,"abstract":"We discover the new scaling of thermionic emission of graphene and then establish a fundamental Schottky diode equation for Graphene/Semiconductor (Gr/S) contact. We also discuss the contact resistance of Gr/S junction. The new physics law discovered in this work has been confirmed by experiments.","PeriodicalId":435469,"journal":{"name":"2015 IEEE International Vacuum Electronics Conference (IVEC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133759093","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}
Pub Date : 2015-04-27DOI: 10.1109/IVEC.2015.7223881
Hanyan Li, Jun Cai, Yinghua Du, Xinghui Li, Jinjun Feng
In this paper, we fabricate copper high frequency structures for a Y-band(170-220GHz) TWT 2nd harmonic amplifier using UV LIGA technology. The two halves have been bonded and assembled in the amplifier. The measurement results of the amplifier show that over 100mW harmonic output power with most of the 11.4GHz of bandwidth at 1% duty cycle have been achieved, and the maximum harmonic output power reaches 500mW.
{"title":"UV-LIGA microfabrication for high frequency structures of a Y-band TWT 2nd harmonic amplifier","authors":"Hanyan Li, Jun Cai, Yinghua Du, Xinghui Li, Jinjun Feng","doi":"10.1109/IVEC.2015.7223881","DOIUrl":"https://doi.org/10.1109/IVEC.2015.7223881","url":null,"abstract":"In this paper, we fabricate copper high frequency structures for a Y-band(170-220GHz) TWT 2nd harmonic amplifier using UV LIGA technology. The two halves have been bonded and assembled in the amplifier. The measurement results of the amplifier show that over 100mW harmonic output power with most of the 11.4GHz of bandwidth at 1% duty cycle have been achieved, and the maximum harmonic output power reaches 500mW.","PeriodicalId":435469,"journal":{"name":"2015 IEEE International Vacuum Electronics Conference (IVEC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115233972","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}
Pub Date : 2015-04-27DOI: 10.1109/IVEC.2015.7223983
Yanjun Cui, Bo Chen, Qiru Lu, Jing Feng, Jinjun Feng
This paper presents a Millimeter wave Power Module (MMPM), which is the hybrid of Solid State Amplifier (SSA) and Travelling Wave Tube (TWT). The experimental test of MMPM showed excellent performance characteristics in terms of the reliability and being able to fit into the aircraft environment.
{"title":"Reliability of a Ka-band Airborne Millimeter wave Power Module","authors":"Yanjun Cui, Bo Chen, Qiru Lu, Jing Feng, Jinjun Feng","doi":"10.1109/IVEC.2015.7223983","DOIUrl":"https://doi.org/10.1109/IVEC.2015.7223983","url":null,"abstract":"This paper presents a Millimeter wave Power Module (MMPM), which is the hybrid of Solid State Amplifier (SSA) and Travelling Wave Tube (TWT). The experimental test of MMPM showed excellent performance characteristics in terms of the reliability and being able to fit into the aircraft environment.","PeriodicalId":435469,"journal":{"name":"2015 IEEE International Vacuum Electronics Conference (IVEC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115393551","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}
Pub Date : 2015-04-27DOI: 10.1109/IVEC.2015.7223896
Xiaopin Tang, Zongjun Shi, Jing Wang, F. Lan, Ziqiang Yang
The slot-array-grating slow wave structure (SWS) as the high frequency system of a 0.14 THz backward wave oscillator (BWO) is designed and simulated. Compared with single-beam situations, the beam-wave interaction efficiency has been significantly increased, the starting current and the time to stable state has been reduced when driven by two sheet beams. These attractive results show that the slot-array-grating BWO has a promising value as a terahertz radiation source.
{"title":"Design of the high-frequency system based on the slot-array-grating structure in a 0.14 THz backward wave oscillator","authors":"Xiaopin Tang, Zongjun Shi, Jing Wang, F. Lan, Ziqiang Yang","doi":"10.1109/IVEC.2015.7223896","DOIUrl":"https://doi.org/10.1109/IVEC.2015.7223896","url":null,"abstract":"The slot-array-grating slow wave structure (SWS) as the high frequency system of a 0.14 THz backward wave oscillator (BWO) is designed and simulated. Compared with single-beam situations, the beam-wave interaction efficiency has been significantly increased, the starting current and the time to stable state has been reduced when driven by two sheet beams. These attractive results show that the slot-array-grating BWO has a promising value as a terahertz radiation source.","PeriodicalId":435469,"journal":{"name":"2015 IEEE International Vacuum Electronics Conference (IVEC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116959281","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}
Pub Date : 2015-04-27DOI: 10.1109/IVEC.2015.7223915
Yuan Guang-jiang, Xiao Liu, Yi Hong-xia, Wang Li, Li Yan-wei, Chen Zhi-liang, Cao Lin-lin, Shang Xin-wen, Su Xiao-bao
Heat radiator for space traveling wave tube has been analyzed using ANSYS, and has been produced. The heat vacuum test shows that the experiment data agrees well with the simulated one.
{"title":"Research on radiator for space traveling wave tube","authors":"Yuan Guang-jiang, Xiao Liu, Yi Hong-xia, Wang Li, Li Yan-wei, Chen Zhi-liang, Cao Lin-lin, Shang Xin-wen, Su Xiao-bao","doi":"10.1109/IVEC.2015.7223915","DOIUrl":"https://doi.org/10.1109/IVEC.2015.7223915","url":null,"abstract":"Heat radiator for space traveling wave tube has been analyzed using ANSYS, and has been produced. The heat vacuum test shows that the experiment data agrees well with the simulated one.","PeriodicalId":435469,"journal":{"name":"2015 IEEE International Vacuum Electronics Conference (IVEC)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116023127","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}
Pub Date : 2015-04-27DOI: 10.1109/IVEC.2015.7223855
Z. Duan, Xinwu Ma, Xiang Huang, Xianfeng Tang, Yanshuai Wang, Y. Gong, Jinjun Feng, Min Chen
Metamaterials in particular a kind of metallic complementary electric split ring resonator (CeSRRs) bring new opportunities for traditional high-power vacuum electric devices. In this paper, we report the transmission characteristics in both simulation and experiment for a novel slow-wave structure (SWS) with the CeSRRs and then study the beam-wave interaction by using the PIC simulation. It is shown that the metamaterial microwave radiation sources have prominent advantages such as miniaturization, high-power, and high electron efficiency.
{"title":"Development of metamaterial microwave radiation sources","authors":"Z. Duan, Xinwu Ma, Xiang Huang, Xianfeng Tang, Yanshuai Wang, Y. Gong, Jinjun Feng, Min Chen","doi":"10.1109/IVEC.2015.7223855","DOIUrl":"https://doi.org/10.1109/IVEC.2015.7223855","url":null,"abstract":"Metamaterials in particular a kind of metallic complementary electric split ring resonator (CeSRRs) bring new opportunities for traditional high-power vacuum electric devices. In this paper, we report the transmission characteristics in both simulation and experiment for a novel slow-wave structure (SWS) with the CeSRRs and then study the beam-wave interaction by using the PIC simulation. It is shown that the metamaterial microwave radiation sources have prominent advantages such as miniaturization, high-power, and high electron efficiency.","PeriodicalId":435469,"journal":{"name":"2015 IEEE International Vacuum Electronics Conference (IVEC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116415308","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}
Pub Date : 2015-04-27DOI: 10.1109/IVEC.2015.7223976
Xuehua Li, Zhiwei Zhao
Co-doped ZnO thin films were fabricated by nanocluster-beam technique with different flow rates of helium gas at 200, 100 and 50 sccm and its influence of different flow rates on the properties has been investigated. TEM and AFM images, XPS survey scan and UV absorbance spectra were carried out. Co-doped ZnO exhibited ferromagnetic at room temperature, and the saturation magnetization of films reduced from 16 to 9.4μemu as the increase of flow rats.
{"title":"Synthesis of Co-doped ZnO diluted magnetic semiconductors thin films by nanocluster-beam technique at different flow rate of helium gas","authors":"Xuehua Li, Zhiwei Zhao","doi":"10.1109/IVEC.2015.7223976","DOIUrl":"https://doi.org/10.1109/IVEC.2015.7223976","url":null,"abstract":"Co-doped ZnO thin films were fabricated by nanocluster-beam technique with different flow rates of helium gas at 200, 100 and 50 sccm and its influence of different flow rates on the properties has been investigated. TEM and AFM images, XPS survey scan and UV absorbance spectra were carried out. Co-doped ZnO exhibited ferromagnetic at room temperature, and the saturation magnetization of films reduced from 16 to 9.4μemu as the increase of flow rats.","PeriodicalId":435469,"journal":{"name":"2015 IEEE International Vacuum Electronics Conference (IVEC)","volume":"64 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123445865","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}
Pub Date : 2015-04-27DOI: 10.1109/IVEC.2015.7223871
Yanjun Wang, Li Wang, Guo Liu, Yong Luo
The helical waveguide resonantly couples the TE21 and TE11 modes and results in a `TE21-like' eigenmode, so its dispersion characteristic needs to be researched. The dispersion equation of the traveling wave mode and backward wave mode is derived for engineering applications. The model is built and the helical waveguide is simulated by using three-dimension electromagnetic emulation software HFSS.
{"title":"Dispersion analysis of a helical waveguide for W-band gyro-TWTs and gyro-BWOs","authors":"Yanjun Wang, Li Wang, Guo Liu, Yong Luo","doi":"10.1109/IVEC.2015.7223871","DOIUrl":"https://doi.org/10.1109/IVEC.2015.7223871","url":null,"abstract":"The helical waveguide resonantly couples the TE21 and TE11 modes and results in a `TE21-like' eigenmode, so its dispersion characteristic needs to be researched. The dispersion equation of the traveling wave mode and backward wave mode is derived for engineering applications. The model is built and the helical waveguide is simulated by using three-dimension electromagnetic emulation software HFSS.","PeriodicalId":435469,"journal":{"name":"2015 IEEE International Vacuum Electronics Conference (IVEC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117047460","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}
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