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2019 IEEE Asia-Pacific Microwave Conference (APMC)最新文献

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10GHz Varactor-less VCO with Helium-3 Ion Irradiated Inductor 带有氦-3离子辐照电感的10GHz无变容压控振荡器
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038455
Hans Herdian, Haosheng Zhang, A. Narayanan, A. Shirane, K. Okada
{"title":"10GHz Varactor-less VCO with Helium-3 Ion Irradiated Inductor","authors":"Hans Herdian, Haosheng Zhang, A. Narayanan, A. Shirane, K. Okada","doi":"10.1109/APMC46564.2019.9038455","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038455","url":null,"abstract":"This paper presents a 10GHz varactor-less voltage-controlled oscillator (VCO) with helium-3 ion irradiated inductor. The purpose of this paper is to recover VCO tank quality factor at high frequency due to the degradation of varactor and inductor. The proposed VCO adopts variable supply method to tune the resonant frequency instead of using a standalone varactor. The helium-3 ion irradiation is applied to further improve inductor quality factor by reducing substrate loss. The VCO has been implemented in a standard 180nm CMOS process for validation. It achieves phase noise of −139.5dBc/Hz at 10MHz offset frequency with 10mW power consumption, which is comparable with other state-of-the art VCOs implemented in more advanced process.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115613208","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
PIC Simulation of a Periodically Dielectric Loaded Millimeter Wave Gyro-twystron Amplifier 周期性介电负载毫米波回旋回旋管放大器的PIC仿真
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038451
S. G. Yadav, A.S. Singh, M. Thottappan
{"title":"PIC Simulation of a Periodically Dielectric Loaded Millimeter Wave Gyro-twystron Amplifier","authors":"S. G. Yadav, A.S. Singh, M. Thottappan","doi":"10.1109/APMC46564.2019.9038451","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038451","url":null,"abstract":"A periodically dielectric loaded W -band gyro-twystron has been designed and studied for its beam-wave interaction behavior using a commercially available Particle-In-Cell (PIC) code “CST Particle Studio”. The present gyro-twystron is operated in circular TE01mode and driven by the DC voltage of 57kV and 5A of electron beam current. The dielectric loading in the output section suppresses the spurious backward wave modes, including TE11, TE21, and second harmonic TEo2 modes. The PIC simulation of the present dielectric loaded gyro-twystron produced a peak RF output power of ~84 kW at 94 GHz in TE01mode. The power conversion efficiency and the saturated gain are calculated as ~29 % and ~32 dB, respectively.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"517 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123103469","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
Shorted Patch Antenna with Symmetrical Radiation Patterns and Enhanced Gain 具有对称辐射方向图和增强增益的短贴片天线
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038320
Z. Shao, Liang-Feng Qiu, Yue Ping Zhang
{"title":"Shorted Patch Antenna with Symmetrical Radiation Patterns and Enhanced Gain","authors":"Z. Shao, Liang-Feng Qiu, Yue Ping Zhang","doi":"10.1109/APMC46564.2019.9038320","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038320","url":null,"abstract":"A novel single-ended gap-coupled shorted patch antenna (SPA) is described in this paper. The finite ground plane effect on radiation patterns of both the conventional shorted patch antenna and the novel gap-coupled SPA is investigated. It was found that the gap-coupled SPA achieves better radiation performance with stable symmetrical radiation patterns and better cross polarization suppression. Moreover, the gap-coupled SPA shows enhanced gain with reduced electrical size compared to the conventional SPA for the air substrate.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"304 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114655425","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
Mining Spatio-Temporal Features from mmW Radar echoes for Hand Gesture Recognition 从毫米波雷达回波中挖掘时空特征用于手势识别
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038713
Zhang Kang, Lan Shengchang, Zhang Guiyuan
{"title":"Mining Spatio-Temporal Features from mmW Radar echoes for Hand Gesture Recognition","authors":"Zhang Kang, Lan Shengchang, Zhang Guiyuan","doi":"10.1109/APMC46564.2019.9038713","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038713","url":null,"abstract":"Human gesture recognition is a new way of interaction and a new application direction of millimeter wave radar. Compared with Doppler radar, FMCW radar can eliminate Doppler frequency interference of moving targets at different distances and accurately obtain the velocity-range information during gesture motion. In this paper, we use the 77GHz millimeter wave radar to extract the time variation characteristics of the Doppler frequency of the gesture. The convolutional neural network was selected to classify the gesture mining spatiotemporal features of the five volunteers. The experimental results show that the feature can describe the gesture velocity change information well and can significantly improve the versatility of the network by adding small amount data of more volunteers data to establish a personal dataset.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116629201","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
Dual-ID Headgear UHF RFID Tag with Broadside and End-Fire Patterns based on Quasi-Yagi Antenna 基于准八木天线的双id头戴式超高频射频标签
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038680
Duc Hung Le, L. Ukkonen, T. Björninen
{"title":"Dual-ID Headgear UHF RFID Tag with Broadside and End-Fire Patterns based on Quasi-Yagi Antenna","authors":"Duc Hung Le, L. Ukkonen, T. Björninen","doi":"10.1109/APMC46564.2019.9038680","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038680","url":null,"abstract":"We present a wearable quasi-Yagi antenna on a periodic surface for a dual-ID passive UHF RFID tag embedded in headgear. The antenna produces a near end-fire radiation pattern directed towards the user's line of sight with the directivity of 4 dBi. Moreover, it integrates another tag by utilizing the Yagi antenna's reflector as a second dipole tag antenna with broadside radiation directed upwards from the user. Hence, in one platform, we obtain a dual-ID tag with near end-fire and broadside patterns for the two tag IDs. The former is achieved by inserting a periodic surface made up of a 2-by-2 grid of square loops in between the antenna and the body. This enhances the launching of surface waves for achieving the end-fire radiation and suppresses the undesired electromagnetic antenna-body interaction.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117257508","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
Compact Suspension-stripline Circulator For High Power Applications 适用于大功率应用的紧凑型悬架带状线环行器
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038871
Song Guo, K. Song, Ying Wang, Yong Pan
{"title":"Compact Suspension-stripline Circulator For High Power Applications","authors":"Song Guo, K. Song, Ying Wang, Yong Pan","doi":"10.1109/APMC46564.2019.9038871","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038871","url":null,"abstract":"In this paper, a compact Y junction circulator by using planar triangular ferrite resonators has been designed, simulated and discussed. In order to improve the pulse power capacity, suspension stripline is applied in this design. The power capacity of the circulator is discussed and simulated in full-wave simulation software ANSYS Electronics Desktop. Based on ferrite materials, the circulator works at 8.6 GHz, and isolation is greater than 20 dB from 8 GHz to 9 GHz. Simulated results show a good performance The structure also shows an appreciable ability on insertion loss and power capacity.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121342164","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
A Reconfigurable Fourth-order Filter With Constant Absolute Bandwidth And Four Transmission Zeros 具有恒定绝对带宽和四个传输零的可重构四阶滤波器
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038183
Maoyu Fan, K. Song, Yu Zhu, Yong Fan
{"title":"A Reconfigurable Fourth-order Filter With Constant Absolute Bandwidth And Four Transmission Zeros","authors":"Maoyu Fan, K. Song, Yu Zhu, Yong Fan","doi":"10.1109/APMC46564.2019.9038183","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038183","url":null,"abstract":"In this letter, a reconfigurable fourth-order bandpass filter with constant absolute bandwidth (ABW) and four transmission zeros is presented. The proposed filter is composed of a pair of varactor-loaded half-wavelength resonators and a pair of quarter-wavelength resonators with varactors loading at specific position. By adjusting the loading position of varactors in quarter-wavelength resonators and coupling region in half-wavelength resonators, the required coupling coefficient and constant ABW can be achieved. Four transmission zeros are introduced by the cross coupling, which improve the stopband rejection performance and selectivity. For demonstration, the proposed filter is simulated and optimized. The simulated result shows a tuning range of 1.95-2.58GHz with 230±7MHz constant ABW, also demonstrates high selectivity and good stopband rejection.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125129726","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
Realisation of a High Spectral Efficient Chipless RFID Tag using Hairpin Resonators 利用发夹谐振器实现高频谱效率无晶片RFID标签
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038844
F. Babaeian, Jiewei Feng, N. Karmakar
{"title":"Realisation of a High Spectral Efficient Chipless RFID Tag using Hairpin Resonators","authors":"F. Babaeian, Jiewei Feng, N. Karmakar","doi":"10.1109/APMC46564.2019.9038844","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038844","url":null,"abstract":"Recently, chipless radio frequency systems have significant development and are going to be commercialised in the near future. Due to the planar structure of the chipless tags, this technology has a high potential for sensing and identification with a low price compared to that of the chipped RFID. However, lower data capacity is one of the crucial challenges for frequency domain chipless RFID tags due to limited available bandwidth resources and the quality factor of the resonators. On the other hand, the implementation of low-quality factor resonators design in the printed tag is not feasible due to broadening the resonances. Therefore, designing high-quality-factor resonators for chipless RFID tags is a need. In this paper, a high spectral efficient hairpin resonator for chipless RFID sensing and identification is proposed. To demonstrate the design concept, using the proposed resonators, a 40-bit chipless RFID tag with 3.5 GHz operating bandwidth was designed, fabricated and measured. This design has the potential to arrange 50 resonators in less than 4 GHz bandwidth.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125285387","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: 8
Design of W-band Sheet Beam EIK w波段薄板梁设计[j]
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038690
Shuyuan Chen, Jinliang Bai, Ran Zhang, Pei Zheng, Jiaqi Liu, Xin Liu, Hongyan Liu, Lu Gao
{"title":"Design of W-band Sheet Beam EIK","authors":"Shuyuan Chen, Jinliang Bai, Ran Zhang, Pei Zheng, Jiaqi Liu, Xin Liu, Hongyan Liu, Lu Gao","doi":"10.1109/APMC46564.2019.9038690","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038690","url":null,"abstract":"Microwave tube is a vacuum electron device which can be used for amplification in the microwave frequency range. Sheet beam Extended Interaction Klystron (EIK) is an attractive Millimeter Waves amplifier because of its compact configuration, small voltage and high gain per unit length. In this paper, RF structure and the whole tube for W-band sheet beam EIK has been designed. A new and effective method of designing and studying W-band sheet beam EIK is presented in this paper. In order to get the same output power, several kinds of W-band sheet beam EIK are designed and compared. By optimizing the position of cavities, the output power can achieve 30 kW, which is calculated by threedimensional particle in cell (3D-PIC) software. It is a powerful basis for the subsequent study of sheet beam EIK.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"25 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125364257","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
Design of Ultrathin Radar Absorbing Structure Using CNF-Barium Ferrite Based Nanocomposites for Stealth Applications cnf -钡铁氧体基纳米复合材料超薄雷达吸波结构的隐身设计
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038525
Vishal Kumar Chakradhary, M. Akhtar
{"title":"Design of Ultrathin Radar Absorbing Structure Using CNF-Barium Ferrite Based Nanocomposites for Stealth Applications","authors":"Vishal Kumar Chakradhary, M. Akhtar","doi":"10.1109/APMC46564.2019.9038525","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038525","url":null,"abstract":"In this work, the ultrathin and broadband radar absorbing material (RAM) using the newly synthesized barium ferrite nanoparticle (BF) and carbon nano fiber (CNF) based epoxy nanocomposites are developed for stealth applications. The CNF-BF based nanocomposite samples in the present situation are synthesized using the specialized ultrasonication method, and their permittivity along with the permeability data are measured in order to extract the reflection loss of these sample in the X-band. It is observed that, on increasing the CNF concentration from 0–3 wt.% by keeping the BF nanofiller at 60 wt.% epoxy, the real and imaginary parts of the permittivity are increasing without significantly affecting the magnetic properties of the resultant nanocomposite. Among all the BF and CNF based nanocomposites, it is observed that the sample with 2 wt.% CNF doping concentration with 60 wt.% BF in the epoxy matrix, the maximum reflection loss of 29.90 dB with 10 dB absorption bandwidth of 2.70 GHz is obtained for 1.5 mm thin sample. Also a detailed comparison in terms of performance of the proposed absorber with similar work reported in literature is carried out indicating its importance as RAM for stealth applications.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126608707","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
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