{"title":"Recent progresses of developing terahertz components in the SKLMMW of Southeast University","authors":"Z. Hao, W. Hong, Jixin Chen, P. Yan","doi":"10.1109/IMWS-AMP.2016.7588407","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2016.7588407","url":null,"abstract":"The terahertz technique has been a hot research topic in recent years owing to its unique characteristics for potential applications such as high resolution spectrometers and high data rate space communications. Rapidly growing research activities from worldwide researchers have been involved in developing terahertz components. This paper reports some typical achievements of developing terahertz components in the State Key Lab of Millimeter-waves, Southeast University, China. Terahertz components, including a 400 GHz high selectivity bandpass filter, a high gain 325-500 GHz antenna, and a 520 GHz oscillator, are introduced with experimental results.","PeriodicalId":132755,"journal":{"name":"2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131145138","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 K-band dual-polarized antenna with high isolation and low cross-polarization","authors":"Jie Wu, Y. Cheng, Yong Fan","doi":"10.1109/IMWS-AMP.2016.7588402","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2016.7588402","url":null,"abstract":"A dual-polarized horn antenna is proposed for K-band wireless communication in this paper. It has a common radiation aperture and two orthogonal wave ports. Hybrid feeding technology of waveguide and microstrip is adopted in the design. High isolation between the two ports can be achieved by adding the waveguide mode cut-off windows. The antenna is able to work well within the relative bandwidth of 21% in terms of good reflection coefficient, high isolation and low cross-polarization. The isolation between the dual-polarization ports is more than 60 dB and the cross-polarization is less than -50 dB throughout the whole band of 20.1 GHz~24.8 GHz.","PeriodicalId":132755,"journal":{"name":"2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132675487","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}
Wangmao Liu, Xianqi Lin, F. Yang, Jiang-jie Zeng, Hongbo Song, Ying Cui
{"title":"Microwave Ablation Antenna with the ablation pattern being a figure-of-eight","authors":"Wangmao Liu, Xianqi Lin, F. Yang, Jiang-jie Zeng, Hongbo Song, Ying Cui","doi":"10.1109/IMWS-AMP.2016.7588394","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2016.7588394","url":null,"abstract":"In this paper, we report a multi coaxial-slot antenna for microwave ablation (MWA). This device is based on coaxial multi slot radiation. This coaxial antenna was slotted two aperture to form a figure-of-eight MWA area. The Microwave Ablation Antenna works at 2.45GHz and also has a good impedance matching. This kind of Microwave Ablation Antenna can solve the specific shape of the tumor and to realize a large ablation pattern, meanwhile our design has lesser damage to body (for the outer radius of the coaxial-slot antenna is less than 4mm).","PeriodicalId":132755,"journal":{"name":"2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132744806","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":"Realization of graphene-based transparent cylinder shielding enclosure","authors":"Yutong Zhao, Bian Wu","doi":"10.1109/IMWS-AMP.2016.7588307","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2016.7588307","url":null,"abstract":"In this paper we present the modeling and realization of a transparent cylindrical shielding enclosure using large-area graphene and ITO films. The resonant modes of the cylinder shielding enclosure were suppressed significantly by the proposed transparent ITO enclosure loaded with graphene-based absorber. In addition, electromagnetic interference (EMI) such as mutual coupling can also be shielded effectively through the proposed enclosure. The measurement of the realized enclosure agrees well with full wave simulation.","PeriodicalId":132755,"journal":{"name":"2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133836400","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":"Surface acoustic wave RF sensing and actuation for lab-on-a-chip platforms","authors":"Rahul Kishor, Zheng Yuanjin","doi":"10.1109/IMWS-AMP.2016.7588459","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2016.7588459","url":null,"abstract":"This paper presents different surface acoustic wave (SAW) active components including actuators and sensors to realize the whole chain necessary to establish a lab-on-chip system. The SAW actuation is based on the acoustic streaming effect caused by the leakage of SAW into fluids in the microfluidic channel. A novel SAW sensor to determine the optical and mechanical absorption properties of liquid samples in a microfluidic channel is also discussed.","PeriodicalId":132755,"journal":{"name":"2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124299519","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":"Frequency selective characteristic based on coupled spoof surface plasmon polaritons","authors":"J. Yin, T. Cui","doi":"10.1109/IMWS-AMP.2016.7588312","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2016.7588312","url":null,"abstract":"We studied the two kinds of coupled mode of spoof surface plasmon polaritons (SPP), which are capacitive-coupled parallel mode and capacitive-coupled series mode respectively. Capacitive-coupled parallel SPP is composed of two oppositely oriented single-side corrugated strips coupled to two double-side corrugated strips, behaving as a wideband-pass filter. The slot between single-side corrugated strip and double-side corrugated strip can be considered as capacitance. Every two H-shaped unit cells used in capacitive-coupled parallel mode are regarded as a new unit cell as to capacitive-coupled series mode. And every two new unit cells are separated by a gap with certain distance along transmission direction. The slot between the new unit cells can also be equivalent to a capacitance. This kind of coupled mode will bring band-stop characteristic to the propagation of SPP. The models of the two kinds of coupled mode SPP were designed and verified the ownership of the corresponding frequency selective characteristic.","PeriodicalId":132755,"journal":{"name":"2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117343138","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}
Ge Liu, Bo Zhang, Lisen Zhang, D. Xing, Junlong Wang, Yong Fan
{"title":"Design of a 420GHz Sub-Harmonic Mixer based on planar Schottky diode","authors":"Ge Liu, Bo Zhang, Lisen Zhang, D. Xing, Junlong Wang, Yong Fan","doi":"10.1109/IMWS-AMP.2016.7588335","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2016.7588335","url":null,"abstract":"In this paper, a 420GHz Sub-Harmonic Mixer based on planar schottky diode is presented. The mixer circuit was fabricated on the 50um thick quartz substrate with a pair of anti-parallel flip-chipped schottky diodes. The planar schottky diode is fabricated in China Electronics Technology Group Corporation-13(CETC-13). Simulated results for the 420 GHz mixer achieved DSB conversion loss of 6.2dB@404GHz. The LO pumped power was 6dBm at 210GHz. The conversion loss was less than 8dB from 390GHz to 450GHz.","PeriodicalId":132755,"journal":{"name":"2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116253226","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":"Dual-band bandpass filters using open-/short- circuited stub-loaded quarter-wavelength resonators","authors":"Xin Dong, Mengze Li, Yanli Li, K. Xu","doi":"10.1109/IMWS-AMP.2016.7588392","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2016.7588392","url":null,"abstract":"Two different types of tunable dual-band bandpass filters (BPFs) based on a pair of open-/short-circuited stub-loaded quarter-wavelength resonators, which share a common short-circuited via hole as a K-inverter, have been presented. Additionally, a source/load cross coupled-line configuration is introduced to improve the frequency selectivity of the proposed filters. These two dual-band BPFs have been demonstrated with good simulated results, which are realized by tuning the configuration of the proposed filter.","PeriodicalId":132755,"journal":{"name":"2016 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":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122122379","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":"Circularly polarized antenna array fed by spoof surface plasmon polariton waves","authors":"Chao Zheng, S. Qu","doi":"10.1109/IMWS-AMP.2016.7588320","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2016.7588320","url":null,"abstract":"A two dimensional circularly polarized (CP) patch array antenna with compact size operating in Ku band is proposed in this paper. To excite the antenna array, a novel spoof surface plasmon polaritions transmission line (SSPPTL) is used and mounted vertically on the ground. The SSPPTL is excited by a waveguide with a horn and a gradient transition for the momentum and impedance matching. Four SSPPTLs form a 4-way power divider to feed the 4×7 circular patch array. Fed by the travelling waves on the SSPPTLs, the CP radiation is generated on the patches, which is located between SSPPTLs. Avoiding the deterioration in axial ratio, 90° phase difference between adjacent SSPPTLs is fixed by tuning the height of the SSPPTLs, since the property of the dispersion is influenced by the height obviously. In the simulation, a maximum gain of 21.2dBi is achieved at 15.3GHz, together with the axial ratio of 0.43dB. A prototype is fabricated and measured to validate the proposed antenna array.","PeriodicalId":132755,"journal":{"name":"2016 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128289974","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":"Vivaldi antenna design in millimeter-wave-band with ultra wide bandwidth and high gain","authors":"Yonghu Zeng, Chong Guo, Xianqi Lin, Xiaofan Yang","doi":"10.1109/IMWS-AMP.2016.7588398","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2016.7588398","url":null,"abstract":"A modified Vivaldi antenna is proposed in this paper especially for the millimeter-wave application. The metal support frame is used to fix the structured substrate and increased the front-to-back ratio as well as the radiation gain. Detailed design process are presented, following which one sample is designed with its working frequency band from 75GHz to 150 GHz. The sample is also fabricated and measured. Good agreements between simulated results and measured results are obtained.","PeriodicalId":132755,"journal":{"name":"2016 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":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128426109","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}