Pub Date : 2015-12-01DOI: 10.1109/APMC.2015.7413074
Peng Wu, S. Liao, Q. Xue
In this paper, a substrate integrated magic-T is presented and fabricated. It is based on the higher order mode cavity and buried slotline. The wideband transition of SIW TE20 mode is employed to realize the out-of-phase divider while the microstrip-to-slotline transition is used to realize the in-phase divider. The slot is etched on the top of the higher order mode cavity. The ground metal defects are buried inside the multilayer substrate, and thus, in practical applications, additional bolster is not required for the defected ground slot. It is convenient for the proposed magic-T to be integrated with other circuits.
{"title":"A substrate integrated magic-T based on higher order mode cavity and slotline","authors":"Peng Wu, S. Liao, Q. Xue","doi":"10.1109/APMC.2015.7413074","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413074","url":null,"abstract":"In this paper, a substrate integrated magic-T is presented and fabricated. It is based on the higher order mode cavity and buried slotline. The wideband transition of SIW TE20 mode is employed to realize the out-of-phase divider while the microstrip-to-slotline transition is used to realize the in-phase divider. The slot is etched on the top of the higher order mode cavity. The ground metal defects are buried inside the multilayer substrate, and thus, in practical applications, additional bolster is not required for the defected ground slot. It is convenient for the proposed magic-T to be integrated with other circuits.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"12 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":"115006418","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}
An orbital angular momentum antenna using dielectric resonator is proposed for the first time. OAM features of this microwave antenna are characterized in detail based on simulation and experimental results. Near fields and far fields with different OAM modes are investigated as well. This dielectric resonator antenna is expected to be widely used in the future wireless OAM system owing to its small size, compact structure and low cost.
{"title":"Orbital angular momentum antenna using dielectric resonator","authors":"Yu Pan, Shilie Zheng, Jiayu Zheng, Xiaofeng Jin, H. Chi, Xianmin Zhang","doi":"10.1109/APMC.2015.7413416","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413416","url":null,"abstract":"An orbital angular momentum antenna using dielectric resonator is proposed for the first time. OAM features of this microwave antenna are characterized in detail based on simulation and experimental results. Near fields and far fields with different OAM modes are investigated as well. This dielectric resonator antenna is expected to be widely used in the future wireless OAM system owing to its small size, compact structure and low cost.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"28 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":"114930925","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.2015.7413234
Amin Kianinejad, Zhi Ning Chen, C. Qiu
This paper theoretically models and experimentally verifies a low-loss spoof surface plasmon (SSP) mode-based transmission line. A circuit model is proposed for a symmetric SSP structure and the dispersion curve, cut off frequency and Bloch impedance of the periodic structure are calculated. A compact mode converter is proposed and verified experimentally for the connection to coplanar waveguides (CPWs) to form a low-loss slow-wave transmission line (SW-TL). The proposed design is compared with a conventional transmission line and its excellent performance is experimentally evidenced. Operating as a low loss TL, the SW-TL is ready for possible MMIC applications, taking advantage of its ultrathin planarity, highly confined fields, and flexible structure.
{"title":"Design and modeling of low-loss symmetric slow-wave transmission lines","authors":"Amin Kianinejad, Zhi Ning Chen, C. Qiu","doi":"10.1109/APMC.2015.7413234","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413234","url":null,"abstract":"This paper theoretically models and experimentally verifies a low-loss spoof surface plasmon (SSP) mode-based transmission line. A circuit model is proposed for a symmetric SSP structure and the dispersion curve, cut off frequency and Bloch impedance of the periodic structure are calculated. A compact mode converter is proposed and verified experimentally for the connection to coplanar waveguides (CPWs) to form a low-loss slow-wave transmission line (SW-TL). The proposed design is compared with a conventional transmission line and its excellent performance is experimentally evidenced. Operating as a low loss TL, the SW-TL is ready for possible MMIC applications, taking advantage of its ultrathin planarity, highly confined fields, and flexible structure.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"64 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":"114944990","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.2015.7411742
M. Kaynak, M. Wietstruck, C. Kaynak, S. Tolunay, A. Goritz, B. Tillack
This paper presents the modular extension of a BiCMOS technology. Three different modules, namely RF-MEMS switch, through-silicon-via (TSV) and microfluidics, are added to IHP's BiCMOS technologies. The first extension module of RF-MEMS switch adds a high-performance mechanical switch, providing unique features such as low-loss switching or high-Q tuning at mm-wave frequencies. The TSV module, which adds deep vias through the substrate (silicon), provides low-ohmic vias through the front side to back side of the silicon wafer. Using this module, the back side of the silicon chip can be used as the RF-ground. Furthermore, such vias through the substrate enables the 3D integrated packages. The last extension module, microfluidics, adds the micro-channels inside the BiCMOS chip. Such micro-channels are very promising for bio-sensing applications for THz detection. The brief technological information of each module and some design examples are also provided in this paper.
{"title":"Modular extension of high performance SiGe BiCMOS technologies — Following the more-than-moore path","authors":"M. Kaynak, M. Wietstruck, C. Kaynak, S. Tolunay, A. Goritz, B. Tillack","doi":"10.1109/APMC.2015.7411742","DOIUrl":"https://doi.org/10.1109/APMC.2015.7411742","url":null,"abstract":"This paper presents the modular extension of a BiCMOS technology. Three different modules, namely RF-MEMS switch, through-silicon-via (TSV) and microfluidics, are added to IHP's BiCMOS technologies. The first extension module of RF-MEMS switch adds a high-performance mechanical switch, providing unique features such as low-loss switching or high-Q tuning at mm-wave frequencies. The TSV module, which adds deep vias through the substrate (silicon), provides low-ohmic vias through the front side to back side of the silicon wafer. Using this module, the back side of the silicon chip can be used as the RF-ground. Furthermore, such vias through the substrate enables the 3D integrated packages. The last extension module, microfluidics, adds the micro-channels inside the BiCMOS chip. Such micro-channels are very promising for bio-sensing applications for THz detection. The brief technological information of each module and some design examples are also provided in this paper.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"112 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":"114998337","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.2015.7413373
A. Cazzorla, M. Kaynak, P. Farinelli, R. Sorrentino
This paper presents the design and manufacturing of a novel Dual Gap MEMS varactor which operates before the pull-in ensuring continuous tuning range. The device is based on interdigitated DC and RF electrodes, allowing uniform distribution of the electrostatic force. The tunable capacitor has been embedded in the BEOL (Back End Of Line) metallization stack of a state of the art Si/SiGe BiCMOS semiconductor process allowing for easy integration with MMIC. Two different variants have been manufactured showing a maximum capacitive ratio of 2.12 and 4.46 respectively. By using mechanical stoppers, very stable down state capacitance values have been measured.
{"title":"A novel Dual Gap MEMS varactor manufactured in a fully integrated BiCMOS-MEMS process","authors":"A. Cazzorla, M. Kaynak, P. Farinelli, R. Sorrentino","doi":"10.1109/APMC.2015.7413373","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413373","url":null,"abstract":"This paper presents the design and manufacturing of a novel Dual Gap MEMS varactor which operates before the pull-in ensuring continuous tuning range. The device is based on interdigitated DC and RF electrodes, allowing uniform distribution of the electrostatic force. The tunable capacitor has been embedded in the BEOL (Back End Of Line) metallization stack of a state of the art Si/SiGe BiCMOS semiconductor process allowing for easy integration with MMIC. Two different variants have been manufactured showing a maximum capacitive ratio of 2.12 and 4.46 respectively. By using mechanical stoppers, very stable down state capacitance values have been measured.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"140 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":"115081999","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.2015.7411778
Seok-Jae Lee, Kyung-Chul Kim, Sang‐Min Han
A planar Electronically Steerable Parasitic Array Radiator (ESPAR) antenna is proposed based on an Yagi-Uda array design for space diversity applications. Even though an conventional ESPAR antenna has various advantages of a simple structure, small volume, and cheap fabrication cost, it requires a 3-dimentional (3-D) form-factor. The proposed one is designed with planar active dipoles and parasitic element arrays from an Yagi-Uda design methodology. Four orthogonal arrays are configured of two active elements and eight parasitic elements, which is implemented with two bi-directional arrays. Each array has an active element, two reflector elements, and two director elements. The proposed architecture has been implemented on a planar substrate, and controlled with switched reactance for each parasitic element. From the experimental results, the proposed planar ESPAR antenna presents four orthogonal beams with a maximum gain of 10.74 dBi and a front to back ratio of 14.7 dB.
{"title":"Planar ESPAR antenna based on Yagi-Uda array design for space diversity applications","authors":"Seok-Jae Lee, Kyung-Chul Kim, Sang‐Min Han","doi":"10.1109/APMC.2015.7411778","DOIUrl":"https://doi.org/10.1109/APMC.2015.7411778","url":null,"abstract":"A planar Electronically Steerable Parasitic Array Radiator (ESPAR) antenna is proposed based on an Yagi-Uda array design for space diversity applications. Even though an conventional ESPAR antenna has various advantages of a simple structure, small volume, and cheap fabrication cost, it requires a 3-dimentional (3-D) form-factor. The proposed one is designed with planar active dipoles and parasitic element arrays from an Yagi-Uda design methodology. Four orthogonal arrays are configured of two active elements and eight parasitic elements, which is implemented with two bi-directional arrays. Each array has an active element, two reflector elements, and two director elements. The proposed architecture has been implemented on a planar substrate, and controlled with switched reactance for each parasitic element. From the experimental results, the proposed planar ESPAR antenna presents four orthogonal beams with a maximum gain of 10.74 dBi and a front to back ratio of 14.7 dB.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"119 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":"116886930","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.2015.7411593
Q. Xiao, B. Yang, Y. Zhou
A planar plasmonic sensor based on textured metallic disk is demonstrated, where a simple and integrated method is used to excite the spoof localized surface plasmons (LSPs). Multipolar plasmonic resonant modes can be easily observed on the textured metallic disk. The multipolar resonant modes of the textured metallic disk are calculated by eigenmode solver of CST microwave studio. The resonant frequencies agree very well to the results observed from the extinction cross section (ECS). The numerical simulations verified that the spoof LSP resonances are highly sensitive to the change of surrounding environment.
{"title":"Planar plasmonic sensor based on spoof localized surface plasmons","authors":"Q. Xiao, B. Yang, Y. Zhou","doi":"10.1109/APMC.2015.7411593","DOIUrl":"https://doi.org/10.1109/APMC.2015.7411593","url":null,"abstract":"A planar plasmonic sensor based on textured metallic disk is demonstrated, where a simple and integrated method is used to excite the spoof localized surface plasmons (LSPs). Multipolar plasmonic resonant modes can be easily observed on the textured metallic disk. The multipolar resonant modes of the textured metallic disk are calculated by eigenmode solver of CST microwave studio. The resonant frequencies agree very well to the results observed from the extinction cross section (ECS). The numerical simulations verified that the spoof LSP resonances are highly sensitive to the change of surrounding environment.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"107 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":"117258966","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.2015.7411777
Xiao Zhang, Lei Zhu
An impedance-agile microstrip patch antenna loaded with a shorting pin is proposed in this paper. A metallic pin is introduced to short the patch with the ground at a certain location. Thus, electric field beneath the path is perturbed to influence the input impedance. By properly choosing the pin location, the input impedance of the microstrip patch antenna can be adjusted in a wide range without changing patch shape or adding an impedance matching branch.
{"title":"An impedance-agile microstrip patch antenna with loading of a shorting pin","authors":"Xiao Zhang, Lei Zhu","doi":"10.1109/APMC.2015.7411777","DOIUrl":"https://doi.org/10.1109/APMC.2015.7411777","url":null,"abstract":"An impedance-agile microstrip patch antenna loaded with a shorting pin is proposed in this paper. A metallic pin is introduced to short the patch with the ground at a certain location. Thus, electric field beneath the path is perturbed to influence the input impedance. By properly choosing the pin location, the input impedance of the microstrip patch antenna can be adjusted in a wide range without changing patch shape or adding an impedance matching branch.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"46 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":"116176407","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.2015.7413339
Zhengbin Wang, Yin Zhang, Yijun Feng, Zhi Ning Chen
We propose an isotropic and ultrathin Huygens' metasurface that can refract normally incident electromagnetic waves efficiently to a predefined angle at 25 GHz. The phase gradient of the surface is controlled by five subwavelength (with dimensions of 0.5λ0 × 0.5λ0, λ0 is the free-space wavelength at 25 GHz) non-resonant spatial phase shifters, which have metallic structures etched on both sides of an ultrathin dielectric substrate (with the thickness of 0.07λ0). The peak value of the transmission efficiency of the device approaches 60%. The proposed metasurface may find applications in designing various electromagnetic lenses, or beam-steerable devices.
{"title":"Beam refraction with an isotropic and ultrathin Huygens' metasurface","authors":"Zhengbin Wang, Yin Zhang, Yijun Feng, Zhi Ning Chen","doi":"10.1109/APMC.2015.7413339","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413339","url":null,"abstract":"We propose an isotropic and ultrathin Huygens' metasurface that can refract normally incident electromagnetic waves efficiently to a predefined angle at 25 GHz. The phase gradient of the surface is controlled by five subwavelength (with dimensions of 0.5λ<sub>0</sub> × 0.5λ<sub>0</sub>, λ<sub>0</sub> is the free-space wavelength at 25 GHz) non-resonant spatial phase shifters, which have metallic structures etched on both sides of an ultrathin dielectric substrate (with the thickness of 0.07λ<sub>0</sub>). The peak value of the transmission efficiency of the device approaches 60%. The proposed metasurface may find applications in designing various electromagnetic lenses, or beam-steerable devices.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"26 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":"116278334","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.2015.7413344
Qinglong Zeng, Ci Zhou, Y. Long, Hong Sun
The localization of non-cooperative emitter sources is a hot and difficult problem in the modern war. The arithmetic of Inverse Diffraction Parabolic Equation has a good applicability and stability characteristic for passive localization in complex environment. In this paper, an inverse diffraction parabolic equation model based on finite difference method (FDM) is constructed to research the localization of the emitter source over forested environment. The article introduces a handing method of forest vegetation and analyzes the effects of forest vegetation on accuracy of transmitter positioning. Simulation results proved that the Inverse Algorithm of Finite Difference Parabolic Equation does a good localization estimate of the emitter source.
{"title":"Research on localization of emitter source in forest environment using inverse diffraction parabolic equation based on finite difference method","authors":"Qinglong Zeng, Ci Zhou, Y. Long, Hong Sun","doi":"10.1109/APMC.2015.7413344","DOIUrl":"https://doi.org/10.1109/APMC.2015.7413344","url":null,"abstract":"The localization of non-cooperative emitter sources is a hot and difficult problem in the modern war. The arithmetic of Inverse Diffraction Parabolic Equation has a good applicability and stability characteristic for passive localization in complex environment. In this paper, an inverse diffraction parabolic equation model based on finite difference method (FDM) is constructed to research the localization of the emitter source over forested environment. The article introduces a handing method of forest vegetation and analyzes the effects of forest vegetation on accuracy of transmitter positioning. Simulation results proved that the Inverse Algorithm of Finite Difference Parabolic Equation does a good localization estimate of the emitter source.","PeriodicalId":269888,"journal":{"name":"2015 Asia-Pacific Microwave Conference (APMC)","volume":"81 5 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":"116347008","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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