{"title":"Terahertz On-chip Tunable Spoof Surface Plasmon Polaritons Transmission Lines Based on Vanadium Dioxide","authors":"Huali Zhu, Yong Zhang, Murong Haoding, Yukun Li, Xie Jinxiong, Chengkai Wu","doi":"10.1109/IMWS-AMP53428.2021.9643897","DOIUrl":"https://doi.org/10.1109/IMWS-AMP53428.2021.9643897","url":null,"abstract":"In this paper, we propose a tunable terahertz on-chip spoof surface plasmon polaritons transmission line (SSPPs TL) based on the insulating-conducting phase transition property of vanadium dioxide (VO2). The dispersion characteristics of the on-chip SSPPs unit is simulated under the $0.25-mu mathrm{m}$ InP DHBT technology, and the transition from GCPW to SSPPs TL is realized by using the gradient grooves. In the design, the top and bottom layer of the VO2 film are connected to the M1 and M3, respectively, to achieve the dynamic manipulation of insertion loss $S_{21}$ of the SSPPs TL. When the VO2 is insulating, the $S_{21}$ of the SSPPs TL is better than 4 dB from the frequency range of 100 GHz to 500 GHz. Alternatively, when the VO2 is in the conducting state, the $S_{21}$ of the SSPPs TL is larger than 18 dB. This work may have extensive potential applications in integrated terahertz plasmonic dynamic devices.","PeriodicalId":143802,"journal":{"name":"2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125447371","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":"Pattern-Reconfigurable Half-Mode Substrate-Integrated Waveguide Antenna","authors":"Peicong Chen, Lei Ge","doi":"10.1109/IMWS-AMP53428.2021.9643948","DOIUrl":"https://doi.org/10.1109/IMWS-AMP53428.2021.9643948","url":null,"abstract":"In this paper, an effective method of designing low-profile cavity-backed pattern-reconfigurable antenna based on half-mode substrate-integrated waveguide (HMSIW) technique is proposed. The HMSIW cavity fed by an inset $50 Omega$ microstrip feedline excite a rectangular patch. Different radiation direction are realized by electronically controlling the states of several PIN diodes between HMSIW and a pair of patches. Otherwise, by switching the on/off-state of the PIN diodes, the slot can operate as a radiating element or a grating reflector. The proposed antenna is made on a single-layer substrate with a low profile of 0.021 free-space wavelength using printed circuit board (PCB) process. It also perform attractive features such as simple structure, high gain and low cross polarization level.","PeriodicalId":143802,"journal":{"name":"2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128229122","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 Wide-Angle Scanning Phased Array with Low Gain Variation Using Novel Feeding Scheme","authors":"C. Shao, H. Chu, Xiao-hua Zhu","doi":"10.1109/IMWS-AMP53428.2021.9643951","DOIUrl":"https://doi.org/10.1109/IMWS-AMP53428.2021.9643951","url":null,"abstract":"A wide-angle scanning phased array with low gain variation is proposed. In order to widen the scanning range for the phased array and keep the gain flatness, a novel feeding scheme is proposed in this design. A pair of radiators has been attached to a two-way power divider by two identical reconfigurable phase shifters respectively. By utilizing the reconfigurable phase shifters, each antenna unit has three reconfigurable modes. Each mode can matched to different scanning range to realize low gain variation. As a result, wide-angle scanning capability and low gain fluctuation can be realized at the same time. In order verify the proposed concept, a phased array constructed by four antenna units has been designed and simulated. The simulated results validate the proposed design exhibiting a good performance of wide-angle scanning characteristic and low gain fluctuation. This design can be also applicable in antenna in package.","PeriodicalId":143802,"journal":{"name":"2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128978078","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}
Hengyan Hu, Yang Yang, Xiaoxiang He, Yan Chen, Fukang Li, Yan Deng, Lei Yang
{"title":"Design of Metamaterial Absorber for Large Angle Oblique Incidence with Impedance Matching","authors":"Hengyan Hu, Yang Yang, Xiaoxiang He, Yan Chen, Fukang Li, Yan Deng, Lei Yang","doi":"10.1109/IMWS-AMP53428.2021.9643892","DOIUrl":"https://doi.org/10.1109/IMWS-AMP53428.2021.9643892","url":null,"abstract":"In this paper, to realize stable absorption under large angle oblique incidence, a metamaterial absorber (MA) with air cavity embedded with lumped resistors is proposed by optimizing its input impedance to match the oblique incident interface wave impedance at transverse electric (TE) polarization mode. According to the vector transmission line equations, the characteristic impedance of transmission line for oblique incidence can be derived. As a result, the absorption band over 90% at the angle from 60° to 70° is improved to 7.9 - 12.3GHz since the impedance is well matched through adjusting the absorber's plane structure.","PeriodicalId":143802,"journal":{"name":"2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129181849","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 Band Switching Voltage Controlled Oscillator for Phase Locked Loop of Receiver Applications","authors":"W. Lai","doi":"10.1109/IMWS-AMP53428.2021.9643852","DOIUrl":"https://doi.org/10.1109/IMWS-AMP53428.2021.9643852","url":null,"abstract":"The proposed complementary cross-coupled pair LC-tank voltage-controlled oscillator (VCO) present and fabricated in tsmc 0.18-um CMOS process. The proposed phase locked loop (PLL) with band switching VCO to improve phase noise and folded-mirror mixer with balun. From 1.8 V sourcing voltage, the proposed PLL achieves a wide tuning range from 8.7 GHz to 10.9 GHz, corresponding to a frequency tuning range of 22.3 %, a phase noise of −113.4 dBc/Hz at frequency of 1 MHz offset from the carrier frequency of 10.1 GHz, a power dissipating of 39 mW and a product power of −21.71 dBm. The chip area only occupies 0.56 $(0.818times 0.678), text{mm}^{2}$ for ultra-wideband applications.","PeriodicalId":143802,"journal":{"name":"2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128628929","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}
Zefang Yu, Yongle Wu, Weimin Wang, Yuhao Yang, Yuan’an Liu
{"title":"A Millimeter-Wave Dual-Band Wideband Metasurface Antenna Based on Printed Ridge Gap Waveguide Feeding","authors":"Zefang Yu, Yongle Wu, Weimin Wang, Yuhao Yang, Yuan’an Liu","doi":"10.1109/IMWS-AMP53428.2021.9643981","DOIUrl":"https://doi.org/10.1109/IMWS-AMP53428.2021.9643981","url":null,"abstract":"In this paper, a millimeter-wave dual-band metasurface antenna is proposed with high gain and wide bandwidth. The proposed antenna is composed of a printed ridge gap waveguide, two T-shaped slots, and the metasurface. All target modes of the metasurface are excited by two T-shaped slots. The metasurface loaded on the slots enhances the radiation performance and improves the gain. An example of the proposed antenna is designed and simulated with the −10-dB bandwidths of 11.3% (26.73–29.83GHz) and 11.3% (38.03–42.6 GHz), and the maximum gains of 9.85 dBi and 10.33 dBi.","PeriodicalId":143802,"journal":{"name":"2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130373486","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}
Yifan Yu, Yongle Wu, Yuhao Yang, Weimin Wang, Jianhong Chen, C. Jin
{"title":"A Low-Cost Millimeter-Wave High-Gain Slot Antenna Array Fed by Multilayer Waveguide","authors":"Yifan Yu, Yongle Wu, Yuhao Yang, Weimin Wang, Jianhong Chen, C. Jin","doi":"10.1109/IMWS-AMP53428.2021.9643905","DOIUrl":"https://doi.org/10.1109/IMWS-AMP53428.2021.9643905","url":null,"abstract":"A millimeter-wave antenna array fed by multilayer waveguide is proposed in this paper. Different from traditional rectangular cavity waveguide, the multilayer waveguide structure used for the antenna is constructed by stacking several thin metal plates. The metal plates are filled with air and do not require any electrical contact. The electromagnetic band gap (EBG) structure is added to the thin metal plates to prevent the leakage of electromagnetic waves within a certain frequency between the metal layers. By using this waveguide structure, manufacturing cost can be greatly reduced. Introduce this waveguide structure into the design of the waveguide slot antenna, and a highperformance millimeter-wave antenna is realized. This 12-element antenna array works at W-band, the gain at the highest point is more than 21 dBi, and the difference between the side lobe and the main lobe exceeds 12 dB. The proposed antenna array could be an excellent candidate for designing millimeter-wave waveguide slot antenna, and can be used for navigation, radar, and other high-frequency communication systems.","PeriodicalId":143802,"journal":{"name":"2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128904765","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":"Tunable Non-Diffraction Spoof Surface Plasmon Polaritons with Liquid Crystal Terahertz Metasurface","authors":"Shaojie Wang, Ke Chen, Junming Zhao, Yijun Feng","doi":"10.1109/IMWS-AMP53428.2021.9643886","DOIUrl":"https://doi.org/10.1109/IMWS-AMP53428.2021.9643886","url":null,"abstract":"Metasurface supporting spoof surface plasmon polaritons (SPPs) recently have attracted much attention due to its unique characteristics of ultra-thin thickness that can enact topological transitions of spoof SPPs. Here, we propose a liquid crystal (LC) metasurface operating in terahertz (THz) band for tunable non-diffraction SPPs. By tuning the external driving voltage, the permittivity of nematic LC and the dispersion curves of the proposed metasurface can be changed continuously. As a design example, we achieve continuous tuning of the non-diffraction SPPs propagation from 0.48 THz to 0.54 THz, with a relative bandwidth around 12%. This work provide a way for dynamic and flexible control of the dispersion properties of metasurface.","PeriodicalId":143802,"journal":{"name":"2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123922649","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 2–6 GHz Single-chip Transceiver Front-End GaN MMIC for Electronic Warfare Application","authors":"B. Tang, Zhikang Lin, Yuehang Xu","doi":"10.1109/IMWS-AMP53428.2021.9643988","DOIUrl":"https://doi.org/10.1109/IMWS-AMP53428.2021.9643988","url":null,"abstract":"This article presents a single-chip transceiver frontend GaN MMIC operating at 2–6 GHz with high power handling capacity. The GaN MMIC integrates a power amplifier, a switch and a low-noise amplifier. A simple on-chip tuned inductance solution is proposed considering the resonance caused by the on-chip capacitance and the inductance induced by the bias bond-wire of the power amplifier to enhance wide-band design. To enhance the power capacity and isolation of transceiver, a topology of “one series and two in parallel” is proposed for switch, which shows more than 100W power handling capacity and 40 dB isolation. The transceiver MMIC demonstrated a 39 dBm of output power and a gain greater than 15 dB of the transmitting branch, the power added efficiency is 24-37% in the range of 2–6 GHz, the noise figure of the receiving branch is better than 3dB and the gain is greater than 15 dB over 1.5-5.5 GHz.","PeriodicalId":143802,"journal":{"name":"2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123008469","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":"Waveguide Coupler in Designer Surface Plasmon using Topological edge states","authors":"Bo Li, Hongyu Shi, Juan Chen, A. Zhang, Zhuo Xu","doi":"10.1109/IMWS-AMP53428.2021.9643865","DOIUrl":"https://doi.org/10.1109/IMWS-AMP53428.2021.9643865","url":null,"abstract":"Photonic topological insulators has shown its ability to be immune to backscatter and defects in the two-dimensional waveguide structure. However, functional devices for PTIs applications are still lacking. In this work, we propose waveguide coupler that consists of two topological waveguides in designer surface plasmon working in the millimeter wave band. We can change the feed direction to adjust the coupling direction and the coupling strength can be adjusted by the distance between the two topological waveguides. At the same time, the proposed topological waveguide coupler using NaCl substrate is environmentally protection.","PeriodicalId":143802,"journal":{"name":"2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"38 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114028564","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}