Pub Date : 2015-12-01DOI: 10.1109/APMC.2015.7413080
H. Cheng, Haitao Zheng, Liechen Yu, Shuang Liu, Shiyong Li, Houjun Sun
Millimeter-waves are nonionizing, readily penetrate common clothing material, and are reflected from the human body and any concealed items. In this paper, a 3-D imaging system is proposed. It works in W-band in order to achieve high resolution. The image reconstruction algorithm used to form a focused image at near field is based on spatial frequency domain, and process of algorithm is displayed detail. The experiment results show that the resolution of the image is better than 5mm. This system is described in detail along with imaging results.
{"title":"W-band three-dimensional surveillance imaging system","authors":"H. Cheng, Haitao Zheng, Liechen Yu, Shuang Liu, Shiyong Li, Houjun Sun","doi":"10.1109/APMC.2015.7413080","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413080","url":null,"abstract":"Millimeter-waves are nonionizing, readily penetrate common clothing material, and are reflected from the human body and any concealed items. In this paper, a 3-D imaging system is proposed. It works in W-band in order to achieve high resolution. The image reconstruction algorithm used to form a focused image at near field is based on spatial frequency domain, and process of algorithm is displayed detail. The experiment results show that the resolution of the image is better than 5mm. This system is described in detail along with imaging results.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"459 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121296200","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 : 2015-12-01DOI: 10.1109/APMC.2015.7413553
Yunhua Tan, Wei Ji, Lianlin Li
The behavior of frequency-controlled beam scanning based on holographic metasurface, for instance, the scanning accuracy and sensitivity of frequency, has been substantially investigated. An immediate consequence of this work is that we provide a more general guideline of designing holographic metasurface with more flexible features, such as, multi-beam scanning, etc. A selected number of simulation results, calculated by performing the commercial software package of CST Microwave Studio, are presented to verify the proposed theory.
{"title":"Analysis of frequency-controlled beam scanning based on holographic metasurface","authors":"Yunhua Tan, Wei Ji, Lianlin Li","doi":"10.1109/APMC.2015.7413553","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413553","url":null,"abstract":"The behavior of frequency-controlled beam scanning based on holographic metasurface, for instance, the scanning accuracy and sensitivity of frequency, has been substantially investigated. An immediate consequence of this work is that we provide a more general guideline of designing holographic metasurface with more flexible features, such as, multi-beam scanning, etc. A selected number of simulation results, calculated by performing the commercial software package of CST Microwave Studio, are presented to verify the proposed theory.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121322472","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 : 2015-12-01DOI: 10.1109/APMC.2015.7413580
Zhenhui Lin, Sheng Li, Jin-Ping Yang, W. Duan, Dong Liu, Q. Yao, S. Shi
Thanks to its high frequency, THz wave is very suitable for ultra-broadband and high data rate communications. Because transmission of THz signal is seriously affected by atmosphere, especially water vapor, more sensitive THz detection techniques are essential for efficient and long-distance THz communications. Based on 0.5THz superconducting SIS receiver, demonstration of THz communication including FM Gaussian noise and FM square wave signal is introduced in this paper. In the experiment, receiving, spectrum processing and demodulation have been tested towards two types of signals, and the testing results will be given as well.
{"title":"Demonstration of THz communication based on 0.5THz superconducting SIS receiver","authors":"Zhenhui Lin, Sheng Li, Jin-Ping Yang, W. Duan, Dong Liu, Q. Yao, S. Shi","doi":"10.1109/APMC.2015.7413580","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413580","url":null,"abstract":"Thanks to its high frequency, THz wave is very suitable for ultra-broadband and high data rate communications. Because transmission of THz signal is seriously affected by atmosphere, especially water vapor, more sensitive THz detection techniques are essential for efficient and long-distance THz communications. Based on 0.5THz superconducting SIS receiver, demonstration of THz communication including FM Gaussian noise and FM square wave signal is introduced in this paper. In the experiment, receiving, spectrum processing and demodulation have been tested towards two types of signals, and the testing results will be given as well.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124048350","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 : 2015-12-01DOI: 10.1109/APMC.2015.7413041
Sriram Muralidharan, Kefei Wu, M. Hella
This paper presents the design and measurements of a 216GHz, 0.5mW transmitter using 65nm bulk CMOS process. The transmitter is formed of an amplifier-multiplier chain, where the power amplifier delivers a Psat =16dBm at 110GHz to a passive frequency doubler. The PA stage employs a novel single-ended to 2-way differential power combiner based on vertically coupled transmission lines. A passive frequency doubler implemented using MOS varactors follows the PA. The 216GHz transmitter delivers a maximum of 0.5mW at 216GHz with a 2.8% bandwidth, while consuming 500mW from a 1V DC supply. The chip, implemented in thin BEOL seven metal ST-65nm CMOS process, occupies a total area of 0.88mm2.
{"title":"A 216GHz 0.5mW transmitter with a compact power combiner in 65nm CMOS","authors":"Sriram Muralidharan, Kefei Wu, M. Hella","doi":"10.1109/APMC.2015.7413041","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413041","url":null,"abstract":"This paper presents the design and measurements of a 216GHz, 0.5mW transmitter using 65nm bulk CMOS process. The transmitter is formed of an amplifier-multiplier chain, where the power amplifier delivers a Psat =16dBm at 110GHz to a passive frequency doubler. The PA stage employs a novel single-ended to 2-way differential power combiner based on vertically coupled transmission lines. A passive frequency doubler implemented using MOS varactors follows the PA. The 216GHz transmitter delivers a maximum of 0.5mW at 216GHz with a 2.8% bandwidth, while consuming 500mW from a 1V DC supply. The chip, implemented in thin BEOL seven metal ST-65nm CMOS process, occupies a total area of 0.88mm2.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126226235","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 : 2015-12-01DOI: 10.1109/APMC.2015.7411761
Kaixue Ma, K. Yeo, Shouxian Mou, N. Mahalingam, Yisheng Wang, Bharatha Kumar Thangarasu, Jinna Yan, Wanxin Ye, Keping Wang, W. M. Lim, T. S. Wong, Yang Lu, Wanlan Yang, Khiam-Boon Png, F. Chin, Xiaoming Peng, Albert Chai, Z. Guoping, C. Yoong, Yin Jee Khoi, Z. Weiqiang, Qu Xuhong, Law Sie Yong, Zhao Cheng, C. Simon, Cheng Wang Cho, J.C. Bo, X. Qing, Zhining Chen
This paper presents our developed dual-chip wireless communication solution adhering to the IEEE 802.11ad standards. The solution is based on a fully integrated baseband IC (BBIC) embedded with USB3.0 interfaces and a low power 60 GHz transceiver SOC (RFIC) embedded inside an antenna in packaging system. The BBIC uses frequency domain equalizer and preambles to perform synchronization, automatic gain control, estimation and compensation for better system performance. A low power 60GHz RFIC using a sub-harmonic sliding-IF scheme is fully integrated based on low cost SiGe 0.18 um BiCMOS process.
本文提出了基于IEEE 802.11ad标准的双芯片无线通信解决方案。该解决方案基于嵌入USB3.0接口的全集成基带IC (BBIC)和嵌入封装系统天线内的低功耗60 GHz收发器SOC (RFIC)。BBIC采用频域均衡器和前置电路来实现同步、自动增益控制、估计和补偿，以提高系统性能。基于低成本SiGe 0.18 um BiCMOS工艺，完全集成了一种采用亚谐波滑动中频方案的低功耗60GHz RFIC。
{"title":"A fully integrated 60GHz dual-chip wireless solution for IEEE802.11ad applications (Invited)","authors":"Kaixue Ma, K. Yeo, Shouxian Mou, N. Mahalingam, Yisheng Wang, Bharatha Kumar Thangarasu, Jinna Yan, Wanxin Ye, Keping Wang, W. M. Lim, T. S. Wong, Yang Lu, Wanlan Yang, Khiam-Boon Png, F. Chin, Xiaoming Peng, Albert Chai, Z. Guoping, C. Yoong, Yin Jee Khoi, Z. Weiqiang, Qu Xuhong, Law Sie Yong, Zhao Cheng, C. Simon, Cheng Wang Cho, J.C. Bo, X. Qing, Zhining Chen","doi":"10.1109/APMC.2015.7411761","DOIUrl":"https://doi.org/10.1109/APMC.2015.7411761","url":null,"abstract":"This paper presents our developed dual-chip wireless communication solution adhering to the IEEE 802.11ad standards. The solution is based on a fully integrated baseband IC (BBIC) embedded with USB3.0 interfaces and a low power 60 GHz transceiver SOC (RFIC) embedded inside an antenna in packaging system. The BBIC uses frequency domain equalizer and preambles to perform synchronization, automatic gain control, estimation and compensation for better system performance. A low power 60GHz RFIC using a sub-harmonic sliding-IF scheme is fully integrated based on low cost SiGe 0.18 um BiCMOS process.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126523064","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 : 2015-12-01DOI: 10.1109/APMC.2015.7411659
J. Ai, K. Xu, Yong Zhang
In this paper, a split-type sharp rejection microstrip quad-band bandpass filter (BPF) with X/4 resonators has been presented. Two split-type dual-band BPFs are studied and combined to form quad-band responses. The quadruplet coupling topology is introduced to generate source-load coupling, resulting in one pair of transmission zeros at each side of all the four passbands. Eventually, a quad-band BPF centered at 2.1, 2.4, 3.9 and 4.5 GHz with respectively fractional bandwidths of 8.5%, 3.4%, 5.5% and 4.9% has been designed and implemented, whose measured results provide a good verification for the simulated ones.
{"title":"Split-type quad-band bandpass filter with quarter-wavelength resonators","authors":"J. Ai, K. Xu, Yong Zhang","doi":"10.1109/APMC.2015.7411659","DOIUrl":"https://doi.org/10.1109/APMC.2015.7411659","url":null,"abstract":"In this paper, a split-type sharp rejection microstrip quad-band bandpass filter (BPF) with X/4 resonators has been presented. Two split-type dual-band BPFs are studied and combined to form quad-band responses. The quadruplet coupling topology is introduced to generate source-load coupling, resulting in one pair of transmission zeros at each side of all the four passbands. Eventually, a quad-band BPF centered at 2.1, 2.4, 3.9 and 4.5 GHz with respectively fractional bandwidths of 8.5%, 3.4%, 5.5% and 4.9% has been designed and implemented, whose measured results provide a good verification for the simulated ones.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128123774","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 : 2015-12-01DOI: 10.1109/APMC.2015.7413103
Ying Chen, Weiping Qin
A new Fourier split-step parabolic equation (FSSPE) algorithm based on the variable step length technique is introduced for the numerical simulation of radio wave propagation through large irregular complex terrain. The computational efficiency of the conventional fixed range step FSSPE has been greatly improved compared with conventional fixed step FSSPE algorithm.
{"title":"A variable range step technique for propagation predictions over large irregular terrain using the fourier split-step parabolic equation","authors":"Ying Chen, Weiping Qin","doi":"10.1109/APMC.2015.7413103","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413103","url":null,"abstract":"A new Fourier split-step parabolic equation (FSSPE) algorithm based on the variable step length technique is introduced for the numerical simulation of radio wave propagation through large irregular complex terrain. The computational efficiency of the conventional fixed range step FSSPE has been greatly improved compared with conventional fixed step FSSPE algorithm.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125458138","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 : 2015-12-01DOI: 10.1109/APMC.2015.7412998
Yingjiang Guo, Xiaohong Tang, K. Xu
A frequency-reconfigurable antenna using PIN diode is presented. The proposed antenna can accordingly operate at one of the two frequency bands which can be reconfigured by changing the dimensions of the antenna. One PIN diode is added to a dual-band monopole antenna structure to implement switch function of the dual frequency bands with the radiation patterns nearly unchanged. The two passbands of the proposed design are located at about 3.81-4.18 GHz and 6.7-7.57 GHz for the return loss larger than 10 dB. The predicted peak gains are respectively 1.44 and 2.62 dB for low- and high-frequency band.
{"title":"A switchable dual-band monopole antenna using PIN diode","authors":"Yingjiang Guo, Xiaohong Tang, K. Xu","doi":"10.1109/APMC.2015.7412998","DOIUrl":"https://doi.org/10.1109/APMC.2015.7412998","url":null,"abstract":"A frequency-reconfigurable antenna using PIN diode is presented. The proposed antenna can accordingly operate at one of the two frequency bands which can be reconfigured by changing the dimensions of the antenna. One PIN diode is added to a dual-band monopole antenna structure to implement switch function of the dual frequency bands with the radiation patterns nearly unchanged. The two passbands of the proposed design are located at about 3.81-4.18 GHz and 6.7-7.57 GHz for the return loss larger than 10 dB. The predicted peak gains are respectively 1.44 and 2.62 dB for low- and high-frequency band.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132200605","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}
In this paper, a fast calculation method is proposed to calculate the output nonlinear distortions of the weakly nonlinear system stimulated by practical signals. The weakly nonlinearity is characterized by a third-order quasi-memoryless polynomial which is widely used and there are no assumptions on the statistical properties of the driven signals. The output is orthogonalized using Gram-Schmidt method and the envelope of the input signal is characterized by its four and six order moments, named waveform factor Γ and Φ in this paper. Then the gain compression and power of uncorrelated nonlinear distortion are directly expressed using input power Γ and Φ the third-order input intercept point. The simulation and comparison results are provided to show that the method proposed is simple and has adequate accuracy, and it's useful in RF system planning.
{"title":"Calculation of weakly nonlinear distortions using the moments of practical communication signals","authors":"Zhiqiang Yu, Jianfeng Zhai, Wenwen Yang, Jianyi Zhou","doi":"10.1109/APMC.2015.7413346","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413346","url":null,"abstract":"In this paper, a fast calculation method is proposed to calculate the output nonlinear distortions of the weakly nonlinear system stimulated by practical signals. The weakly nonlinearity is characterized by a third-order quasi-memoryless polynomial which is widely used and there are no assumptions on the statistical properties of the driven signals. The output is orthogonalized using Gram-Schmidt method and the envelope of the input signal is characterized by its four and six order moments, named waveform factor Γ and Φ in this paper. Then the gain compression and power of uncorrelated nonlinear distortion are directly expressed using input power Γ and Φ the third-order input intercept point. The simulation and comparison results are provided to show that the method proposed is simple and has adequate accuracy, and it's useful in RF system planning.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132559929","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 : 2015-12-01DOI: 10.1109/APMC.2015.7413391
C. Luo, Xiaoqing Hu, X. Chen, Lei Zhang, Shengping Liu, Xin Liu, Hairong Zheng, Ye Li
In order to obtain high resolution image of vessel wall of carotid artery, an 8-channel carotid coil is fabricated for 3T magnetic resonance imaging in this study. The phantom experiments and in-vivo studies are implemented in order to validate the performance of the fabricated 8-channel carotid coil. The high resolution images are obtained with the fabricated 8-channel carotid coil in clinical examination for in vivo experiment, showing its potential for the clinical diagnosis.
{"title":"An 8-channel phased array for carotid artery magnetic resonance imaging at 3T","authors":"C. Luo, Xiaoqing Hu, X. Chen, Lei Zhang, Shengping Liu, Xin Liu, Hairong Zheng, Ye Li","doi":"10.1109/APMC.2015.7413391","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413391","url":null,"abstract":"In order to obtain high resolution image of vessel wall of carotid artery, an 8-channel carotid coil is fabricated for 3T magnetic resonance imaging in this study. The phantom experiments and in-vivo studies are implemented in order to validate the performance of the fabricated 8-channel carotid coil. The high resolution images are obtained with the fabricated 8-channel carotid coil in clinical examination for in vivo experiment, showing its potential for the clinical diagnosis.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130246897","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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