Radar external calibration is an important means to obtain the radar cross section (RCS) of unknown target. The choice of calibration method is closely related to the ambient environment of the radar station. This paper reports a calibration measurement of the UHF-band shore-based radar with active radar calibrator (ARC) on a fishing boat. It was found that multipath propagation effect due to the sea surface could not be eliminated as due to the ground. Based on the analysis of multi-path model, our experiment solved the problem of multi-path propagation better, and the calibration precision is controlled at 2dB.
{"title":"Calibration measurement of shore-based radar with active reflector","authors":"Xin Li, Huiming Li, Yushi Zhang, P. Shui, Jinpeng Zhang, Shu-wen Xu","doi":"10.1109/ISAPE.2018.8634322","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634322","url":null,"abstract":"Radar external calibration is an important means to obtain the radar cross section (RCS) of unknown target. The choice of calibration method is closely related to the ambient environment of the radar station. This paper reports a calibration measurement of the UHF-band shore-based radar with active radar calibrator (ARC) on a fishing boat. It was found that multipath propagation effect due to the sea surface could not be eliminated as due to the ground. Based on the analysis of multi-path model, our experiment solved the problem of multi-path propagation better, and the calibration precision is controlled at 2dB.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"274 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121312254","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 : 2018-12-01DOI: 10.1109/ISAPE.2018.8634228
Jiaming Yang, Dasheng Cui, Zhengzhi Ding, X. Lv
This paper presents an on-chip integrated antenna based on 180nm-CMOS process. By loading the artificial magnetic conductor(AMC) structure under the antenna, the antenna gain is improved and the radiation pattern is optimized. The peak gain of this antenna reaches 9.6 dBi with low side lobes. The bandwidth is increased to 212–227GHz by using a special structural connection between the feed line and the antenna.
{"title":"220GHz High Gain On-chip Antenna Based on 180nm CMOS","authors":"Jiaming Yang, Dasheng Cui, Zhengzhi Ding, X. Lv","doi":"10.1109/ISAPE.2018.8634228","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634228","url":null,"abstract":"This paper presents an on-chip integrated antenna based on 180nm-CMOS process. By loading the artificial magnetic conductor(AMC) structure under the antenna, the antenna gain is improved and the radiation pattern is optimized. The peak gain of this antenna reaches 9.6 dBi with low side lobes. The bandwidth is increased to 212–227GHz by using a special structural connection between the feed line and the antenna.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131934175","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 : 2018-12-01DOI: 10.1109/ISAPE.2018.8634233
Kangmin Yang, Liang Xu, Hui Zhang
A wideband and wide-angle scanning tightly coupled dipole array (TCDA) is presented in this paper. The simulation results show that the operating frequency range of the array is from 3.5GHz to 10.5GHz with the VSWR less than 3:1, while scanning up to 60° in E-plane and H-plane.
{"title":"Design of a Wideband and Wide-angle Scanning Tightly Coupled Dipole Array","authors":"Kangmin Yang, Liang Xu, Hui Zhang","doi":"10.1109/ISAPE.2018.8634233","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634233","url":null,"abstract":"A wideband and wide-angle scanning tightly coupled dipole array (TCDA) is presented in this paper. The simulation results show that the operating frequency range of the array is from 3.5GHz to 10.5GHz with the VSWR less than 3:1, while scanning up to 60° in E-plane and H-plane.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132217501","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}
This paper proposed an optically transparent antenna designed with indium tin oxide (ITO) film. ITO is a transparent material with good electrical conductivity. The antenna made of ITO material has light-transparent characteristic compared with the antenna made of traditional metal, and can be applied to special scenes such as window glass and display screen. The working frequency band of the antenna is 0.8-6 GHz. This band covers 2G, 3G, 4G and WLAN bands. The main radiator of the antenna adopts a self-complementary structure and is fed with a gradual structure, thus the antenna has ultra-wideband characteristics
{"title":"Design of Ultra-Wideband Optically Transparent Antenna","authors":"Yulin Luo, Yuan Yao, Zhijiao Chen, L. Qi, Junsheng Yu, Xiao-dong Chen","doi":"10.1109/ISAPE.2018.8634132","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634132","url":null,"abstract":"This paper proposed an optically transparent antenna designed with indium tin oxide (ITO) film. ITO is a transparent material with good electrical conductivity. The antenna made of ITO material has light-transparent characteristic compared with the antenna made of traditional metal, and can be applied to special scenes such as window glass and display screen. The working frequency band of the antenna is 0.8-6 GHz. This band covers 2G, 3G, 4G and WLAN bands. The main radiator of the antenna adopts a self-complementary structure and is fed with a gradual structure, thus the antenna has ultra-wideband characteristics","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132232530","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 : 2018-12-01DOI: 10.1109/ISAPE.2018.8634142
Deqiang Yang, Honglei Zhang
For pulse-excited UWB antennas, because the antenna can only radiate part of the frequency energy, but the pulse signal bandwidth is very wide, a circuit for recovering energy of UWB antenna in time domain is designed in this paper. This energy recovery circuit can collect the energy wasted by the original antenna through heating, which is not radiated out, to recharge the battery, so as to achieve energy recycling and improve battery standby time.
{"title":"A UWB Label Pulse Energy Recovery Circuit","authors":"Deqiang Yang, Honglei Zhang","doi":"10.1109/ISAPE.2018.8634142","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634142","url":null,"abstract":"For pulse-excited UWB antennas, because the antenna can only radiate part of the frequency energy, but the pulse signal bandwidth is very wide, a circuit for recovering energy of UWB antenna in time domain is designed in this paper. This energy recovery circuit can collect the energy wasted by the original antenna through heating, which is not radiated out, to recharge the battery, so as to achieve energy recycling and improve battery standby time.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134124967","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 : 2018-12-01DOI: 10.1109/ISAPE.2018.8634244
Jie Xu, Weiguo Shen, Wei Wang
In view of the individual recognition problem of the communication emitter, this paper, starting with the subtle characteristics of the communication emitter in the signal layer, proposes a method of individual recognition based on deep learning. First, a recognition framework based on deep learning is established, and a convolution neural network containing two hidden layers is designed to extract local features through two layers convolution operations. Secondly, the stochastic gradient descent method is used to optimize the parameters, and the soft max model is used to determine the output label. Finally, the effectiveness of the method is verified by experiments.
{"title":"Individual Recognition of Communication Emitter Based on Deep Learning","authors":"Jie Xu, Weiguo Shen, Wei Wang","doi":"10.1109/ISAPE.2018.8634244","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634244","url":null,"abstract":"In view of the individual recognition problem of the communication emitter, this paper, starting with the subtle characteristics of the communication emitter in the signal layer, proposes a method of individual recognition based on deep learning. First, a recognition framework based on deep learning is established, and a convolution neural network containing two hidden layers is designed to extract local features through two layers convolution operations. Secondly, the stochastic gradient descent method is used to optimize the parameters, and the soft max model is used to determine the output label. Finally, the effectiveness of the method is verified by experiments.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134556990","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 : 2018-12-01DOI: 10.1109/ISAPE.2018.8634122
Yv Han, Jingjing Guo, L. Shen, Jiajia Miao
In order to estimate and decode the long-period scrambling code of asynchronous WCDMA signal, this paper proposed an independent component analysis (ICA) algorithm and phase locked loop (PLL) technology. First, according to the structure of WCDMA, the signal after sample rate conversion was proposed to be modeled as a form of carrier-modulated blind source separation matrix. Then, the long-period scrambling code and source information will be estimated by the proposed ICA and PLL algorithm. Finally, the simulation results show that the proposed algorithm can effectively identify the long-period scrambling sequence of asynchronous multi-user WCDMA signals, and has better performance than the traditional identification method based on singular value decomposition(SVD).
{"title":"Asynchronous WCDMA Signal Long-Period Scrambling Code Estimation and Blind Decoding","authors":"Yv Han, Jingjing Guo, L. Shen, Jiajia Miao","doi":"10.1109/ISAPE.2018.8634122","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634122","url":null,"abstract":"In order to estimate and decode the long-period scrambling code of asynchronous WCDMA signal, this paper proposed an independent component analysis (ICA) algorithm and phase locked loop (PLL) technology. First, according to the structure of WCDMA, the signal after sample rate conversion was proposed to be modeled as a form of carrier-modulated blind source separation matrix. Then, the long-period scrambling code and source information will be estimated by the proposed ICA and PLL algorithm. Finally, the simulation results show that the proposed algorithm can effectively identify the long-period scrambling sequence of asynchronous multi-user WCDMA signals, and has better performance than the traditional identification method based on singular value decomposition(SVD).","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133862229","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 : 2018-12-01DOI: 10.1109/ISAPE.2018.8634367
Haichuan Tang, Hua Wang, Lin Jiao, Yunbo Li
Aiming at the phenomenon of Ship-borne AIS over-the-horizon communication in some area in the Yellow Sea in June 2, 2018, which influenced by atmospheric duct, the atmospheric duct is calculated by using the atmospheric temperature and humidity profiles measured at that time. According to the calculated atmospheric duct environment, the parabolic numerical equation model and the AIS coverage evaluation model are used to analyze the maximum distance of AIS in the atmospheric duct environment. The results show that this method can be used to evaluate the maximum range of AIS and other ultra-short wave equipment under complex refraction environment conditions such as atmospheric duct. Meanwhile, it also shows that the characteristics of atmospheric duct can be inferred based on over-the-horizon communication distance of AIS.
{"title":"Analysis of Ultra-short Wave Propagation in Atmospheric Duct","authors":"Haichuan Tang, Hua Wang, Lin Jiao, Yunbo Li","doi":"10.1109/ISAPE.2018.8634367","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634367","url":null,"abstract":"Aiming at the phenomenon of Ship-borne AIS over-the-horizon communication in some area in the Yellow Sea in June 2, 2018, which influenced by atmospheric duct, the atmospheric duct is calculated by using the atmospheric temperature and humidity profiles measured at that time. According to the calculated atmospheric duct environment, the parabolic numerical equation model and the AIS coverage evaluation model are used to analyze the maximum distance of AIS in the atmospheric duct environment. The results show that this method can be used to evaluate the maximum range of AIS and other ultra-short wave equipment under complex refraction environment conditions such as atmospheric duct. Meanwhile, it also shows that the characteristics of atmospheric duct can be inferred based on over-the-horizon communication distance of AIS.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133990674","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 : 2018-12-01DOI: 10.1109/ISAPE.2018.8634087
D. Yang, J. Wen, M. He, Ruicong He
In this paper, a D-band monolithic microwave integrated circuit low noise amplifier (LNA) is designed by using $0.5 mumathbf{m}$ InP high electron mobility transistor (HEMT) technology. The circuit is mainly composed of five-stage of common-source amplification structure, and resistance and capacitance are connected in series to form a feedback network, which can improve the stability of the circuit. The series resistance and parallel grounding capacitance on the DC bias circuit constitute a low-pass structure, which is to absorb the gain of the circuit at low frequency, prevent the circuit from self-oscillation. In the 120-150GHz frequency range, the simulated gain is above 18.5 dB, and the noise figure is lower than 4.5dB. The area of this chip is $1.12times 0.62mathbf{mm}^{2}$, and the power consumption of the whole circuit is 47mW.
{"title":"A D-band Monolithic Low Noise Amplifier on InP HEMT Technology","authors":"D. Yang, J. Wen, M. He, Ruicong He","doi":"10.1109/ISAPE.2018.8634087","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634087","url":null,"abstract":"In this paper, a D-band monolithic microwave integrated circuit low noise amplifier (LNA) is designed by using $0.5 mumathbf{m}$ InP high electron mobility transistor (HEMT) technology. The circuit is mainly composed of five-stage of common-source amplification structure, and resistance and capacitance are connected in series to form a feedback network, which can improve the stability of the circuit. The series resistance and parallel grounding capacitance on the DC bias circuit constitute a low-pass structure, which is to absorb the gain of the circuit at low frequency, prevent the circuit from self-oscillation. In the 120-150GHz frequency range, the simulated gain is above 18.5 dB, and the noise figure is lower than 4.5dB. The area of this chip is $1.12times 0.62mathbf{mm}^{2}$, and the power consumption of the whole circuit is 47mW.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130924407","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 : 2018-12-01DOI: 10.1109/ISAPE.2018.8634333
Xinyi Wang, Wei Zhang, Mingliang Huang
A compact differential ultra-wide band (UWB) planar quasi-Yagi antenna is presented in this paper. The proposed antenna can not only realize a wide differential-mode (DM) impedance bandwidth covering from 3.8 to 9.5 GHz, but achieve a high and wideband common-mode (CM) suppression by employing the balanced stepped-impedance microstrip-slotline transition structure. Besides, the DM passband is independent from the CM response, simplifying the design procedure significantly. In addition, a sharp DM notched band at 5.8 GHz is generated by adding one pair of quarter-wavelength short-circuited stubs adjacent to the microstrip line symmetrically. In order to illustrate the effectiveness of the design, one prototype of the antenna is designed, fabricated, and measured. A good agreement between the simulated and measured results is observed.
{"title":"A Differential UWB Quasi-Yagi Antenna with a Notched Band at 5.8 GHz","authors":"Xinyi Wang, Wei Zhang, Mingliang Huang","doi":"10.1109/ISAPE.2018.8634333","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634333","url":null,"abstract":"A compact differential ultra-wide band (UWB) planar quasi-Yagi antenna is presented in this paper. The proposed antenna can not only realize a wide differential-mode (DM) impedance bandwidth covering from 3.8 to 9.5 GHz, but achieve a high and wideband common-mode (CM) suppression by employing the balanced stepped-impedance microstrip-slotline transition structure. Besides, the DM passband is independent from the CM response, simplifying the design procedure significantly. In addition, a sharp DM notched band at 5.8 GHz is generated by adding one pair of quarter-wavelength short-circuited stubs adjacent to the microstrip line symmetrically. In order to illustrate the effectiveness of the design, one prototype of the antenna is designed, fabricated, and measured. A good agreement between the simulated and measured results is observed.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133566302","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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