Minyun Jiang, J. Wen, Yuqing Liu, Wentao Wu, D. Yang, Lingling Sun
{"title":"A Fully differential D-band CMOS Amplifier in 65nm bulk CMOS","authors":"Minyun Jiang, J. Wen, Yuqing Liu, Wentao Wu, D. Yang, Lingling Sun","doi":"10.1109/ucmmt45316.2018.9015666","DOIUrl":"https://doi.org/10.1109/ucmmt45316.2018.9015666","url":null,"abstract":"This paper presents a 140GHz D-band fully differential three-stage amplifier in 65-nm CMOS. The circuit uses a common source (CS) and utilizes cross-capacitance neutralization technology to form feedback and circuit matching is base on transformer matching. The simulation result show that amplifier achieves a maximum gain of 17.2 dB at 127GHz and the 3dB bandwidth is 38GHz from 121GHz from 159GHz, the saturated output power is 7.2dBm and the simulated 1-dB compression power is 2.8dBm at 140GHz. The core of amplifier occupies an area of 0.09mm2. The power consumption is 56mW from a 1.2 V supply voltage.","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":"129063015","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}
Yu Mi, Qinggong Chang, Yahai Wang, Duntai Li, Yang Zhou, Chao Sun
{"title":"Design of High Performance Linear Frequency Modulation Source for Terahertz Imaging","authors":"Yu Mi, Qinggong Chang, Yahai Wang, Duntai Li, Yang Zhou, Chao Sun","doi":"10.1109/UCMMT45316.2018.9015735","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015735","url":null,"abstract":"The technology of direct digital synthesis (DDS) has an important role in the modern generation of signal waveform, of which the advantages are output signal frequency high, the high resolution of frequency and the low phase noise. In this paper, the four modes of frequency waveforms of signal source based on the DDS chip are designed and researched based on the field programmable gate array (FPGA), with used for the Terahertz imaging technology. The four modes are single-tone frequency of internal trigger, linear frequency sweeping of internal trigger, single linear frequency sweeping of external trigger and multiple linear frequency sweepings of external trigger.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"100 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":"127344101","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}
{"title":"Nondestructive Detection Method for Drugs in the Medical Box Based on 3-D THz Imaging","authors":"Dahai Hu, F. Nian, Yahai Wang","doi":"10.1109/UCMMT45316.2018.9015811","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015811","url":null,"abstract":"A nondestructive detection method for drugs in the medicine box base on three dimensional terahertz imaging is proposed in this paper. It is able to complete nondestructive detection without opening the medical box by using the characteristics of high resolution, penetrating and security. An active 3-D THz imaging system consists of a vector network analyzer, a THz spread spectrum device, THz antennas, and a mechanical scanning system is used. The operating frequency of the imaging system is from 220GHz to 325GHz. A modified range migration algorithm is adopted after a phase calibration. As a result, drugs in the medicine box with missing one are detected via the 3-D THz imaging system with a high resolution. The 3-D imaging result is consistent with the reality which proves that the detecting method base on 3-D THz imaging for drugs in the medical box is effective.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"52 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":"132420795","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}
{"title":"Design of a 2-bit Coding Metasurface with Flexible Phase Control","authors":"Q. Ma, G. Bai, H. Jing, T. Cui","doi":"10.1109/UCMMT45316.2018.9015782","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015782","url":null,"abstract":"A 2-bit coding reprogrammable metasurface in X-band is presented to realize flexible phase control. Two PIN diodes are integrated in each coding element, to realize four different on-off states, corresponding to four distinct phase responses. A metasurface composed of 15*15 elements is simulated, fabricated and measured, showing good consistence between simulations and experiments. To demonstrate the phase manipulation performance of the proposed reprogrammable metasurface, three typical coding patterns are designed and simulated, to obtain single-, dual- and multi-beam scattering fields. The results of full-wave simulations indicates good tailoring capability on electromagnetic (EM) wave, suggesting various potential applications on microwave detection and imaging.","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":"130657025","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}
{"title":"A Broadband Low Profile Phased Array Antenna","authors":"Dan Sun, Danchen Zhou, Ming Du","doi":"10.1109/ucmmt45316.2018.9015695","DOIUrl":"https://doi.org/10.1109/ucmmt45316.2018.9015695","url":null,"abstract":"A wideband phased array with low profile geometry is presented in this paper. The antenna element consists of the stacked patches antenna fed by the printed meandering probe. The feeding mechanism compensates the inductances caused by the conventional probe, and the printed circuit technology conduces to the integration. In the array, the metallic posts and walls are periodically arranged around the antenna cell, which provide the solution to eliminate the scan blindness in the operation band. The simulated results of the periodical infinite array show the center element has an over 40% bandwidth (active VSWR<2) within ±60° scan angle and good radiation patterns.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"2017 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":"133509306","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}
{"title":"A Dual-Band Circularly-Polarized Quadrifilar Helix Antenna","authors":"Yang‐Dong Yan, Y. Jiao, R. Tian, Weijun Zhang","doi":"10.1109/UCMMT45316.2018.9015789","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015789","url":null,"abstract":"In this paper, a new design of an dual-band printed quadrifilar helical antenna(QHA) for S-band has been presented. This quadrifilar antenna has four helical arms wrapped around a dielectric cylinder which has low permittivity and low loss. Each arms consists of two parallel elements long and short which opened at the top of the helix. The lower end of helix is simultaneously fed, the long element resonates at 1.995GHz (1.98GHz–2.01GHz with the center frequency 1.995GHz), and the short element resonates at 2.185GHz(2.17GHz–2.2GHz with the center frequency 2.185GHz). The four arms are fed with equal amplitudes with 0°, 90°,180°,270° phase by integrated feeding network. Simulated results of the proposed antenna show that the antenna can provide good wide-beam circular polarization characteristics in both frequency bands. The proposed antenna has a smaller size, light weight and low cost to be suitable for mobile handset applications.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"19 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":"131780272","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}
{"title":"A Wideband Millimeter-Wave Balun Using Substrate Integrated Waveguide (SIW)","authors":"Changwu Tong, H. Tang, Jian‐Xin Chen","doi":"10.1109/UCMMT45316.2018.9015833","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015833","url":null,"abstract":"A wideband balun is presented in this letter which makes full use of the vertical transition between microstip line and substrate integrated waveguide (SIW) through a coupling slot. The designed balun operates at millimeter-wave (mm-Wave) frequencies and does not need tight coupling part like Marchand baluns as frequently used in monolithic or hybrid integrated circuit design. This balun consists of two substrates, and an electric field transition through coupling slot achieving a 180° phase shift for the balanced ports. Proposed designed is validated by simulation and could easily obtain a FBW of 53% from 18.7 GHz to 32 GHz with larger than 10 dB return loss at the unbalanced port. Simulated results show that the excellent amplitude imbalance and phase difference between two balanced ports are less than 0.3 dB and ±2°, respectively.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"228 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":"122945800","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}
{"title":"Reconfigurable Half-Mode Substrate Integrated Waveguide Filter With Wide Out-Of-Band Rejection","authors":"Jun Guo, Bin You","doi":"10.1109/UCMMT45316.2018.9015766","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015766","url":null,"abstract":"This paper presents a half-mode substrate-integrated waveguide (SIW) filter with both continuous center frequency tuning and continuous bandwidth (BW) tuning. The out-of-band rejection of the bandpass filter is greatly improved by loading the tunable lowpass filter on the input/output feed line. Both the theoretical analysis and experiments are described to validate the proposed filter structure.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"16 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":"128740277","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}
Yubo Zhao, Li-Si Fan, Guangpu Mi, Jin Chang, Guo-Wei Chen
{"title":"Design and Implementation of LTCC Low Pass Filter","authors":"Yubo Zhao, Li-Si Fan, Guangpu Mi, Jin Chang, Guo-Wei Chen","doi":"10.1109/UCMMT45316.2018.9015696","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015696","url":null,"abstract":"LTCC form filters are very common at home and abroad, and their types are also varied. A low-pass filter design method is introduced. An S-band filter is simulated and designed. In the DC-3.4GHz range, S11 is greater than 20dB, 3GHz or higher, 10GHz or lower, and S21 is less than 40dB. This indicator is better than the MINI-related LTCC low-pass filter indicator. Can be used for S-band component design to filter out second and third harmonics.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"7 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":"114592670","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}
{"title":"A Multi-Beam Network Based on Silicon-Based Optical Waveguide","authors":"Jianyu Guo, Mingzhu Li, Peng Chen, Hui Zhang, Xutao Yu","doi":"10.1109/UCMMT45316.2018.9015747","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015747","url":null,"abstract":"In this paper, a multi-beam network based on silicon-based optical waveguides is proposed. The multi-beam network is in the form of a Butler matrix consisting of coupler and phase shifter. First, the 90° bridge, cross coupler and phase shifter are designed to achieve good coupling or phase shifting effect. Then these elements are cascaded to form a Butler matrix. After simulation and optimization, the multi-beam network works at 1550 nm wavelength and achieves four phase differences between output ports: −45°, 135°, −135°, and 45°. Low transmission loss and beam steering characteristics make this Butler matrix applicable to multi-beam feeding network.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"36 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120994091","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}