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

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An In-phase Balanced-to-Single-Ended Power Divider with Bandpass Response 带通响应的同相平衡-单端功率分压器
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038432
Hsin-Yi Liu, Yi-Hsin Pang
{"title":"An In-phase Balanced-to-Single-Ended Power Divider with Bandpass Response","authors":"Hsin-Yi Liu, Yi-Hsin Pang","doi":"10.1109/APMC46564.2019.9038432","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038432","url":null,"abstract":"A balanced-to-single-ended power divider with inphase outputs is proposed in this paper. By utilizing two bandpass filters of different orders, phase difference between single-ended output ports could be theoretically zero. Good frequency selectivity is also achieved. Though the bandpass filters are of different orders, their physical lengths are almost identical to facilitate the connection with the following stage, such as an antenna array. A 2.45-GHz design has been theoretically and experimentally validated. To the best of authors' knowledge, this is the first balance-to-single-ended power divider with bandpass response and in-phase outputs.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"211 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":"133648078","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 21-39.5 GHz Power Amplifier for 5G Wireless Systems in 22 nm FD-SOI CMOS 用于5G无线系统的22 nm FD-SOI CMOS 21-39.5 GHz功率放大器
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038202
Xin Xu, P. V. Testa, Songhui Li, László Szilágyi, W. Finger, C. Carta, F. Ellinger
{"title":"A 21-39.5 GHz Power Amplifier for 5G Wireless Systems in 22 nm FD-SOI CMOS","authors":"Xin Xu, P. V. Testa, Songhui Li, László Szilágyi, W. Finger, C. Carta, F. Ellinger","doi":"10.1109/APMC46564.2019.9038202","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038202","url":null,"abstract":"This paper presents a high-gain broadband power amplifier for 5G wireless systems, which provides a gain above 10 dB from 21 GHz to 39.5 GHz, and is implemented in a 22 nm FD-SOI technology. The circuit is based on two stacked amplifier stages which are connected with lumped-element matching networks. For a power consumption of 228 mW from a 2.4 V voltage supply, the amplifier provides 25 dB of peak gain, maximum saturated output power of 16.8 dBm, output power in 1 dB gain-compression of 13 dBm, and maximum power-added-efficiency of 19.8%. The power amplifier compares well against previously reported designs by showing the highest measured gain and gain-bandwidth product while still having comparable performance in the other figures of merit.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"38 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":"132261561","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
Study on the PhotoThermoelectric Characteristic of Graphene with Double-Gate 双栅石墨烯光热电特性研究
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038854
Ning Wang, Cong Meng, Cong Gao, Zhihao Ma, Hongzhi Jia, G. Sui, Xiumin Gao
{"title":"Study on the PhotoThermoelectric Characteristic of Graphene with Double-Gate","authors":"Ning Wang, Cong Meng, Cong Gao, Zhihao Ma, Hongzhi Jia, G. Sui, Xiumin Gao","doi":"10.1109/APMC46564.2019.9038854","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038854","url":null,"abstract":"When light passes through the interface of two materials with different Seebeck coefficients (S), a temperature gradient will be occurred at the interface, causing photo-thermoelectric effect, which in turn produces photocurrent. Since photocurrent is positively correlated with the difference of Seebeck coefficient of the material and negatively correlated with the resistance of the material, a method for calculating the thermoelectric parameters of graphene with double-gate structure is proposed in this paper. Taking the back gate voltage as a global variable and the top gate voltage as a local variable, the resistance of graphene sheets in different regions is regulated. By solving the resistance of graphene sheets in two regions with top gate and without top gate, their Seebeck coefficients can be obtained. The results show that under the control of the global back gate voltage, a small range of fine adjustment of the top gate voltage can accurately achieve precise control of the resistance and Seebeck coefficient of different regions of the graphene sheet. This paper provides a theoretical basis for the subsequent study on the photoelectric characteristics of graphene.","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":"132443961","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 Millimeter-Wave Antenna on Low Cost FR4 Substrate 低成本FR4基板上的毫米波天线
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038532
W. Tung, Pei-Zong Rao, Wan-Ming Chen
{"title":"A Millimeter-Wave Antenna on Low Cost FR4 Substrate","authors":"W. Tung, Pei-Zong Rao, Wan-Ming Chen","doi":"10.1109/APMC46564.2019.9038532","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038532","url":null,"abstract":"In this paper, a low cost 60 Ghz antenna for millimeter-wave applications is designed and investigated. The antenna is designed on a low-cost FR4 substrate with air cavity structure. The antenna for 60GHz has fabricated on the FR4 substrate for demonstration, and the results of simulation and preliminary measurement are provided as well.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"44 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":"132663746","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
Read Accuracy Improvement by R/W Beam Scanning and Repeated Transmission for 920 MHz RFID 920mhz射频识别射频波束扫描和重复传输提高读取精度
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038336
Sora Funayama, Y. Yamao
{"title":"Read Accuracy Improvement by R/W Beam Scanning and Repeated Transmission for 920 MHz RFID","authors":"Sora Funayama, Y. Yamao","doi":"10.1109/APMC46564.2019.9038336","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038336","url":null,"abstract":"Radio Frequency Identification (RFID) has been expected as a promising solution that bring about revolution in the supply chain management. One of the important scenarios is that an RFID system is used for identifying goods in shops and warehouses. For achieving good read accuracy, however, it is necessary to understand indoor radio propagation environment with surrounding materials that reflect radio waves and generate standing waves. In this paper, we analyze RFID read success rate in metal shelf environment through FDTD simulation. In order to reduce the read error, we propose a reader/writer (R/W) beam scanning and repeated transmission scheme with a moving conductor. By displacing the conductor in the vicinity of R/W antennas, receiving power null position caused by the standing waves is moved. Then, read accuracy can be improved by repeated transmission and selection combining. It is confirmed from the simulations that the read rate is greatly improved by the proposed scheme.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"34 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":"128892904","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
Millimeter-wave Magneto-electric Dipole Antenna 毫米波磁电偶极天线
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038252
Jingtao Zeng, K. Luk
{"title":"Millimeter-wave Magneto-electric Dipole Antenna","authors":"Jingtao Zeng, K. Luk","doi":"10.1109/APMC46564.2019.9038252","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038252","url":null,"abstract":"A new broadband planar ME-dipole antenna element with integrated balun is proposed. The antenna has a bandwidth of 55% from 25 GHz to 44 GHz with a peak gain of 5.3 dBi. A novel integrated balun with broad operating bandwidth is designed for feeding. The antenna yields advantages of small size, wide bandwidth, low cost and stable gain. The proposed antenna can be used in 5G applications to cover the 28, 37, 39 GHz frequency band.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"25 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":"127795546","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
The Method of Diode Modeling and Novel Equivalent Circuit for Microwave Rectifiers 微波整流器二极管建模方法及新型等效电路
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038403
Takashi Hirakawa, Z. Hao, N. Shinohara, Y. Guo
{"title":"The Method of Diode Modeling and Novel Equivalent Circuit for Microwave Rectifiers","authors":"Takashi Hirakawa, Z. Hao, N. Shinohara, Y. Guo","doi":"10.1109/APMC46564.2019.9038403","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038403","url":null,"abstract":"For the design of rectifiers, the accurate modeling method for diode is necessity. By the measurement, scattering parameters, which expresses the microwave input characteristics, can be obtained. In previous research, the modeling method using scattering parameters are discussed. Herein, we focused on the modeling method for the design of single-shunt rectifiers. In this case, only $S_{11}$ is necessity for the design. Then, applied the former method to this condition. First, the traditional equivalent circuit is assumed in the parameter extracting process. However, the extracted result does not agreed with the fundamental physical rules. Herein, we developed the new equivalent circuit, which is suitable for our assuming situations. As a result, the extracted results using our proposed circuit show the much better than that with using the traditional circuit.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"215 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":"134490484","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
High Performance E-Band Variable Gain LNA with Image Reject Filter 带图像抑制滤波器的高性能e波段可变增益LNA
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038816
R. Ben Yishay, O. Katz, B. Sheinman, D. Elad
{"title":"High Performance E-Band Variable Gain LNA with Image Reject Filter","authors":"R. Ben Yishay, O. Katz, B. Sheinman, D. Elad","doi":"10.1109/APMC46564.2019.9038816","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038816","url":null,"abstract":"This paper presents a high performance 81-86 GHz low noise amplifier (LNA), designed and implemented in an advanced $0.12 mumathrm{m}$ SiGe technology. The LNA comprises five common-emitter stages and two integrated analog controlled attenuators, embedded in its inter-stage matching networks. The LNA exhibits maximum gain of 24 dB at room temperature and more than 20 dB gain-tuning range. An integrated image reject filter provides more than 30 dB of image rejection. At minimum attenuation the LNA shows 4.5 dB noise figure, and at maximum attenuation the LNA achieves input 1 dB compression point (ICP1dB) of −6.5 dBm. The IC consumes 42 mA from a 1.6 Volts supply.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"30 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":"131295063","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
Head Phantom Model for Electromagnetic Wave Exposure Study at 2.45 GHz 2.45 GHz电磁波暴露研究的头部幻影模型
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038688
Naufal Rizki Septianto, Basari
{"title":"Head Phantom Model for Electromagnetic Wave Exposure Study at 2.45 GHz","authors":"Naufal Rizki Septianto, Basari","doi":"10.1109/APMC46564.2019.9038688","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038688","url":null,"abstract":"Smartphone usage and the level of internet coverage in Indonesia are increasing rapidly every year. According to Ministry of Communication and Information of the Republic of Indonesia, more than 100 million of Indonesia's 250 million residents are active smartphone users in 2018. With such a large number, Indonesia is a country with the fourth most active smartphone users in the world after China, India and United States. In addition, the level of Indonesia's internet coverage in 2018 reached 82%. One of the most commonly used types of networks is ISM band network with frequency of 2.45 GHz. The number of smartphone and internet users in Indonesia currently encourages research on the effects of radio wave exposure on the human body tissue in relatively short and long time. Therefore, a study using smartphone antenna at resonant the frequency of 2.45 GHz against human head model is proposed. The study is aimed to evaluate how much the influence of 2.45 GHz frequency or Wi-Fi frequency on the human head in terms of specific absorption rate (SAR). This study is conducted by EM simulator software, which the human head is modeled as a homogenous head phantom consisting of three-layer human brain model. The human brain model is then fabricated as semisolid phantom, which is put in the 3-D printed human head container. The phantom is then exposed to the smartphone antenna for SAR measurement by using thermographic method. The result shows that the SAR values from 0.4585 W/kg to 1.4108 W/kg are obtained following exposure on the fabricated head phantom.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"19 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":"115202753","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
Generalized Topology and Synthesis Design of Balanced Wideband Phase Shifters with Common-Mode Suppression 宽带共模抑制平衡移相器的广义拓扑与综合设计
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038213
Lei‐Lei Qiu, Lei Zhu, Yun‐Peng Lyu
{"title":"Generalized Topology and Synthesis Design of Balanced Wideband Phase Shifters with Common-Mode Suppression","authors":"Lei‐Lei Qiu, Lei Zhu, Yun‐Peng Lyu","doi":"10.1109/APMC46564.2019.9038213","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038213","url":null,"abstract":"This paper proposes the generalized topology and synthesis design method for the wideband balanced phase shifters with common-mode (CM) suppression. By utilizing of the open-and short-circuited stub-loaded T-shaped structure, high CM rejection and good differential-mode (DM) filtering property can be simultaneously achieved. Additionally, the DM amplitude response in reference and main branches can be prescribed for equal-ripple Chebyshev response, and the corresponding DM phase shift and CM rejection level can be synthesized accordingly. As a generalized topology, $J$ inverter and K inverter realized by the coupled line and loaded stub, respectively, are well suited for implementations. The design method has been well verified by two sets of experimental results.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"36 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":"124341482","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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