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2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)最新文献

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Design of a Ka-band microwave undulator 一种ka波段微波波动器的设计
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015786
Liang Zhang, Wenlong He, J. Clarke, K. Ronald, A. Phelps, A. Cross
{"title":"Design of a Ka-band microwave undulator","authors":"Liang Zhang, Wenlong He, J. Clarke, K. Ronald, A. Phelps, A. Cross","doi":"10.1109/UCMMT45316.2018.9015786","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015786","url":null,"abstract":"In this paper, a microwave undulator operating at 36 GHz was proposed and design for a UK XFEL. A corrugated waveguide which has low loss was used. The properties of the microwave undulator operating at HE11 and HE12 modes are compared.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132183738","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
Broadband Circularly Polarized Patch Antenna Array for Vehicle Communication 用于车辆通信的宽带圆极化贴片天线阵列
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015715
Yang‐Dong Yan, Y. Jiao, Weijun Zhang
{"title":"Broadband Circularly Polarized Patch Antenna Array for Vehicle Communication","authors":"Yang‐Dong Yan, Y. Jiao, Weijun Zhang","doi":"10.1109/UCMMT45316.2018.9015715","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015715","url":null,"abstract":"A circularly polarized (CP) antenna which is a set of 2×2 patch array with parasitic rectangular elements is designed and measured. The parasitic patch can enhanced the gain of the antenna. Each antenna element is fed by two probe that is connected to the feeding network. The final design, with an overall size of 160mm×160mm×28mm $(sim 1.1lambda_{0}times 1.1lambda_{0}times 0.2lambda_{0}$ at 2.09 GHz), was fabricated and measured. The proposed antenna has been fabricated and measured. The antenna array has a measured $vert mathrm{S}_{11}vert < -{10}$ dB bandwidth of 1.82-2.4 GHz(27.5%), the 3-dB axial-ratio(AR) bandwidth of 1.9-2.2 GHz is also obtained. Besides, the peak gain of the antenna array is 13.46 dBi at 2.01 GHz.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130107667","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
A Terahertz Mixer Using Wide Pads and Flip Chip Schottky Diode 使用宽衬垫和倒装肖特基二极管的太赫兹混频器
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015669
D. Ji, Bo Zhang, Zhe Chen, Yong Fan
{"title":"A Terahertz Mixer Using Wide Pads and Flip Chip Schottky Diode","authors":"D. Ji, Bo Zhang, Zhe Chen, Yong Fan","doi":"10.1109/UCMMT45316.2018.9015669","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015669","url":null,"abstract":"In this paper, a 590-650GHz terahertz sub-harmonic mixer using wide pads was presented to reduce the mismatch caused by manual assembly of the flip chip diode. In order to improve design accuracy, the exact 3D model of the planar Schottky diode was built. And the influence of the silver glue metal layer formed in manual assembly on the performance was study. The RF/LO matching networks were designed with consideration of minimizing the influence of manual assembly. The simulation exhibits that the conversion loss of the mixer is less than 10dB range from 590GHz to 650GHz when the LO pumped power is 3dBm, and the best performance of conversion loss is 8dB at 620GHz.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130111374","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 on-chip 90 GHz Bandpass filter Using Broadside-Coupled Meander line Resonator for Millimeter-wave Application 采用宽频耦合曲线谐振器的紧凑型片上90 GHz带通滤波器，用于毫米波应用
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015726
Dirong Chen, G. Su, Lingling Sun
{"title":"Compact on-chip 90 GHz Bandpass filter Using Broadside-Coupled Meander line Resonator for Millimeter-wave Application","authors":"Dirong Chen, G. Su, Lingling Sun","doi":"10.1109/UCMMT45316.2018.9015726","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015726","url":null,"abstract":"In this paper, an on-chip 90 GHz bandpass filter using broadside-coupled meander line resonator is presented. The filter is designed using a 0.5um InP HBT technology for millimeter-wave application. The performance is extensively verified using an EM simulator of ADS. A transmission zero can be generated by changing the total length of the resonator and effectively controlled. By using capacitive feeding, the designed resonator generates one transmission pole at 90.3 GHz with insertion loss of −0.038 dB, and one transmission zero at 120.8 GHz with the rejection of −42.4 dB. The BPF chip area is 230um*191um2 including pads.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115070020","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
Dispersion Characteristics of Surface Plasmon Polaritons of Graphene Loaded Three Dimensional Dielectric Gratings 石墨烯加载三维介质光栅表面等离子激元的色散特性
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/ucmmt45316.2018.9015693
Qingqing Ye, Wenxin Liu
{"title":"Dispersion Characteristics of Surface Plasmon Polaritons of Graphene Loaded Three Dimensional Dielectric Gratings","authors":"Qingqing Ye, Wenxin Liu","doi":"10.1109/ucmmt45316.2018.9015693","DOIUrl":"https://doi.org/10.1109/ucmmt45316.2018.9015693","url":null,"abstract":"Graphene has been used widely in optical and electronic devices due to its extraordinary electromagnetic characteristics. Recent theories and experiments prove that graphene support surface plasmon polariton (SPPS) and transform it into Terahertz (THz) radiation. In this paper, a dispersion and electric amplitude equations of SPPS of graphene loaded on the three dimensional dielectric gratings excited by parallel moving electron beam are derived by solving the Maxwell's equations. The numerical results show that the frequency of amplified electric amplitude are same as the frequency point where electron beam and dispersion curve meet, which demonstrate theoretical analysis are right. The influence of dielectric gratings width is considered. It is found that the cutoff frequency occurs and rises on the dispersion curve as the width narrowing. The working point frequency is also higher compared with infinite width dielectric gratings. The SPPS of graphene loaded the three dimensional dielectric gratings whose work point is under cutoff frequency can't be excited, even though it can be tuned. The numerical results show the electric amplitude becomes greater with width increasing.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131828422","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
Wideband Quad-Ridged Flared Horn Feed Design and Optimization Based on PSO Algorithm 基于粒子群算法的宽带四脊喇叭馈电设计与优化
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/ucmmt45316.2018.9015713
Zhijie Sun, Weiye Zhong, Liu Cong, Weiping Qin
{"title":"Wideband Quad-Ridged Flared Horn Feed Design and Optimization Based on PSO Algorithm","authors":"Zhijie Sun, Weiye Zhong, Liu Cong, Weiping Qin","doi":"10.1109/ucmmt45316.2018.9015713","DOIUrl":"https://doi.org/10.1109/ucmmt45316.2018.9015713","url":null,"abstract":"A high performance wideband quad-ridged flared horn (QRFH) feed has been designed which operates from 3.9 –15.3 GHz. In order to find the balance between spillover efficiency and aperture efficiency to ensure the high sensitivity, spline-profiled ridges and horn have been optimized with the help of particle swarm optimization (PSO) algorithm. Through computation and optimization, the average sensitivity of the QRFH is greater than 4.6 m2/K, the average aperture efficiency is more than 65% and the return losses of two port are greater than 14 dB within the working frequency band.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131860064","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
Tunable excitation of surface plasmon polaritons on the graphene metasurfaces by electron beam 电子束对石墨烯超表面表面等离子激元的可调激发
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015825
Yong-Qiang Liu, Jinhai Sun, Xu-Tao Zhang, Liangsheng Li, Hongcheng Yin
{"title":"Tunable excitation of surface plasmon polaritons on the graphene metasurfaces by electron beam","authors":"Yong-Qiang Liu, Jinhai Sun, Xu-Tao Zhang, Liangsheng Li, Hongcheng Yin","doi":"10.1109/UCMMT45316.2018.9015825","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015825","url":null,"abstract":"Owing to its intense localized near-field and the versatile tunable capability, graphene surface plasmons(GSPs) provide an excellent platform to develop novel terahertz radiation source. Compared to the previous studies on terahertz radiation sources with complete grapheme sheet, graphene metasurface (such as periodical ribbon arrays) provide a new method by varying graphene ribbon width to tune output performance. In this paper, a terahertz radiation source based on the excitation of GSPs on the periodical graphene ribbon arrays by electron beam is proposed and studied both theoretically and numerically. First, the general dispersion relation of SSP mode on the graphene ribbon arrays which is deposited on a dielectric medium with a conducting ground metal plate is obtained by a modal expansion method. Besides, a terahertz radiation source on the graphene-dielectric-metal structure based on the interaction between GSPs and injected electron beam is modeled and implemented by particle-in-cell simulation. A tunable terahertz radiation source via different ribbon width is proposed and the output with different biased voltage is also analyzed. The presented studies based on gradient graphene ribbon arrays can provide a new way to develop tunable terahertz radiation source.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"44 24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132961485","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
Magneto-Electric Dipole 26 GHz Phased Array for 5G Application of Smartphones 智能手机5G应用磁电偶极子26ghz相控阵
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/ucmmt45316.2018.9015722
Zhiwei Yin, Lei Wang, Wenwen Yang, Jin Shi
{"title":"Magneto-Electric Dipole 26 GHz Phased Array for 5G Application of Smartphones","authors":"Zhiwei Yin, Lei Wang, Wenwen Yang, Jin Shi","doi":"10.1109/ucmmt45316.2018.9015722","DOIUrl":"https://doi.org/10.1109/ucmmt45316.2018.9015722","url":null,"abstract":"In 5G smartphones, the millimeter-wave (26GHz) phased array antenna based on high-precision printed circuit board (PCB) process should be within a limited thickness for example 1mm (0.09λ0). The traditional magneto-electric dipole antenna cannot be used in this phased array due to its high profile. To solve this problem, the phased array consists of 2 × 4 magnetoelectric dipole elements is presented, which is realized by only using double-layer substrate with low profile of 0.08λ0 (@26 GHz). The phased array antenna also meets some basic requirements, including realized gain more than 13 dBi, scan angle between −40 to 40 degree, and the band from 24.75 to 27.5 GHz.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125662307","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 Compact Ultrawideband Microstrip Patch Antenna With Dual Polarization 一种紧凑的双极化超宽带微带贴片天线
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015914
Rike Jie, Z. Feng, Houjun Sun
{"title":"A Compact Ultrawideband Microstrip Patch Antenna With Dual Polarization","authors":"Rike Jie, Z. Feng, Houjun Sun","doi":"10.1109/UCMMT45316.2018.9015914","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015914","url":null,"abstract":"A compact ultra-wideband dual-polarization microstrip patch antenna is proposed. The upper patch of the proposed antenna adopts a pentagonal structure, and two ports share one radiating patch to reduce the antenna volume. Pentagonal patch through the T-slot to improve the isolation of the two ports and the high polarization purity. The ground of the antenna uses a defective ground structure and an arrowhead-shaped stub to improve impedance matching in order to extend the bandwidth significantly. The measured results show that the proposed antenna has good impedance matching (S11<−10dB), high port isolation (S21<−15dB) and high polarization purity from 2.7GHz to 12GHz, which demonstrate the proposed antenna can be a good candidate for UWB applications.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130370948","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 Space Harmonic Leaky-Wave Antenna Based on Half Mode Substrate Integrated Waveguide 基于半模基片集成波导的空间谐波漏波天线
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015730
Xin Gu, Leilei Liu, Jian Wang, Jianing Cai
{"title":"A Space Harmonic Leaky-Wave Antenna Based on Half Mode Substrate Integrated Waveguide","authors":"Xin Gu, Leilei Liu, Jian Wang, Jianing Cai","doi":"10.1109/UCMMT45316.2018.9015730","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015730","url":null,"abstract":"A space harmonic leaky-wave antenna based on half mode substrate integrated waveguide (HMSIW) is proposed. This antenna operates in the first negative Floquet mode which is a space harmonic wave using transverse slots. Continuous backward beam scanning is acquired within scanning region from −55° to −10° operating in 16 − 20 GHz. This antenna miniaturizes the transverse size using HMSIW. The simulated gain of the antenna uniformly changed from 9.4dB to 15.9dB.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129164271","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
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