Pub Date : 2017-05-01DOI: 10.1109/GSMM.2017.7970334
W. Feng, Rui Yin, W. Che
A novel balanced-to-unbalanced filtering power divider using ring resonators is proposed. Due to the symmetry of the circuit model, even/odd-mode analysis method is applied to deduce the design equations at the operating frequency. The ring resonators can bring two transmission zeros in each side of the passband for differential-mode, which can improve frequency selectivity and out-of-band suppression. A fabricated prototype (εr = 2.65, h = 1 mm, tan δ = 0.003) with 4-dB bandwidth of 12.5% is designed and measured to prove the proposed methods.
提出了一种基于环形谐振器的平衡-不平衡滤波功率分配器。由于电路模型的对称性，采用偶/奇模分析方法推导出工作频率下的设计方程。环形谐振器可以在差模通带两侧各引入两个传输零点，提高了频率选择性和带外抑制能力。设计了一个4 db带宽为12.5%的样机(εr = 2.65, h = 1 mm, tan δ = 0.003)，并进行了测试。
{"title":"Balanced-to-unbalanced filtering power divider using ring resonators","authors":"W. Feng, Rui Yin, W. Che","doi":"10.1109/GSMM.2017.7970334","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970334","url":null,"abstract":"A novel balanced-to-unbalanced filtering power divider using ring resonators is proposed. Due to the symmetry of the circuit model, even/odd-mode analysis method is applied to deduce the design equations at the operating frequency. The ring resonators can bring two transmission zeros in each side of the passband for differential-mode, which can improve frequency selectivity and out-of-band suppression. A fabricated prototype (εr = 2.65, h = 1 mm, tan δ = 0.003) with 4-dB bandwidth of 12.5% is designed and measured to prove the proposed methods.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122244914","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 : 2017-05-01DOI: 10.1109/GSMM.2017.7970309
A. Torres-García, B. Orazbayev, I. Ederra, R. Gonzalo
A Fresnel Zone Plate Lens designed for the Mid-IR is modified for acting as a THz Antenna. This proposal is the base for a dual band detector consisting of a Silicon (Si) substrate with a quasi-spiral antenna detector working at THz frequencies which acts also as a modified Fresnel Zone Plate Lens for an IR detector. The focal properties of the proposed lens have been studied numerically, and its behavior as a submillimeter wave receiver has been demonstrated by a 3D full-wave simulator.
{"title":"IR-Fresnel zone plate lens acting as THz antenna","authors":"A. Torres-García, B. Orazbayev, I. Ederra, R. Gonzalo","doi":"10.1109/GSMM.2017.7970309","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970309","url":null,"abstract":"A Fresnel Zone Plate Lens designed for the Mid-IR is modified for acting as a THz Antenna. This proposal is the base for a dual band detector consisting of a Silicon (Si) substrate with a quasi-spiral antenna detector working at THz frequencies which acts also as a modified Fresnel Zone Plate Lens for an IR detector. The focal properties of the proposed lens have been studied numerically, and its behavior as a submillimeter wave receiver has been demonstrated by a 3D full-wave simulator.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125318862","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 : 2017-05-01DOI: 10.1109/GSMM.2017.7970320
M. Yao, Jing Li, Dong Liu, Shaoliang Li, S. Shi, Pavel Dmitriev, Michael Fominsky, Valery Koshlets
China is planning to build a 5-m THz telescope named DATE5 at Dome A in Antarctica. The telescope will operate in 0.85 THz and 1.5 THz frequency bands. A waveguide superconductor-insulator-superconductor (SIS) mixer is developed for the 0.85 THz frequency band by utilizing parallel-connected tunnel junctions (PCTJ) with Nb/AlN/NbN trilayer and NbTiN/SiO2/Al microstrip tuning circuit on quartz substrate. Its frequency response is measured by a Fourier-transform spectrometer (FTS), showing an FWHM frequency coverage of 762–925 GHz. The measured uncorrected double sideband (DSB) receiver noise temperature is approximately equal to 450 K at 840 GHz. With the vacuum window and beamsplitter losses corrected, the receiver noise temperature is less than five times the quantum-limited noise. Detailed mixer design and measurement results will be presented.
{"title":"Development of a 0.85 THz Nb-AlN-NbN superconductor-insulator-superconductor mixer","authors":"M. Yao, Jing Li, Dong Liu, Shaoliang Li, S. Shi, Pavel Dmitriev, Michael Fominsky, Valery Koshlets","doi":"10.1109/GSMM.2017.7970320","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970320","url":null,"abstract":"China is planning to build a 5-m THz telescope named DATE5 at Dome A in Antarctica. The telescope will operate in 0.85 THz and 1.5 THz frequency bands. A waveguide superconductor-insulator-superconductor (SIS) mixer is developed for the 0.85 THz frequency band by utilizing parallel-connected tunnel junctions (PCTJ) with Nb/AlN/NbN trilayer and NbTiN/SiO2/Al microstrip tuning circuit on quartz substrate. Its frequency response is measured by a Fourier-transform spectrometer (FTS), showing an FWHM frequency coverage of 762–925 GHz. The measured uncorrected double sideband (DSB) receiver noise temperature is approximately equal to 450 K at 840 GHz. With the vacuum window and beamsplitter losses corrected, the receiver noise temperature is less than five times the quantum-limited noise. Detailed mixer design and measurement results will be presented.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128467178","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 : 2017-05-01DOI: 10.1109/GSMM.2017.7970325
R. Das, Qingfeng Zhang, A. Kandwal
A novel systematic synthesis method for negative group delay(NGD)structure is proposed in this paper. Transfer functions are obtain from synthesised characteristics polynomials which provides higher design flexibility. An optimum design condition is derived to reduce the number of resonators being equal to the highest degree of polynomial. Different synthesis examples are discussed with different orders and NGD responses. The exact agreement between the polynomial and coupling matrix based responses illustrate the proposed synthesis method.
{"title":"Synthesis of lossy coupling matrix for negative group delay filters","authors":"R. Das, Qingfeng Zhang, A. Kandwal","doi":"10.1109/GSMM.2017.7970325","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970325","url":null,"abstract":"A novel systematic synthesis method for negative group delay(NGD)structure is proposed in this paper. Transfer functions are obtain from synthesised characteristics polynomials which provides higher design flexibility. An optimum design condition is derived to reduce the number of resonators being equal to the highest degree of polynomial. Different synthesis examples are discussed with different orders and NGD responses. The exact agreement between the polynomial and coupling matrix based responses illustrate the proposed synthesis method.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115865654","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}
A dual-polarized wideband substrate-integrated-waveguide fed aperture-coupled slot antenna array for 60 GHz is proposed. By cutting a semicircle shape on the edge of the crossed-slot antenna, the impedance bandwidth of the proposed antenna is effectively widen and achieves overlapped bandwidth of 16.7% for simulated |S11| and |S22|. In addition, over 35 dB isolation between two polarization and low cross-polarization level are achieved for dual-polarization operations. A gain up to 11.4 dB is obtained for 2×2 array. Most importantly, the proposed antenna array uses the aperture coupling method to enable the connection between PCB layers. It could be fabricated by stacking three layers of standard printed circuit board (PCB) laminates. With the advantages of low-cost, convenience of fabrication and desired performances, the proposed antenna is suitable for the millimeterwave antenna applications.
{"title":"A dual-polarized wideband substrate-integrated-waveguide-fed slot antenna array for 60 GHz","authors":"Zhijiao Chen, Xiaohan Wang, L. Qi, Xiaoming Liu, Yuan Yao, Junsheng Yu, Xiao-dong Chen","doi":"10.1109/GSMM.2017.7970343","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970343","url":null,"abstract":"A dual-polarized wideband substrate-integrated-waveguide fed aperture-coupled slot antenna array for 60 GHz is proposed. By cutting a semicircle shape on the edge of the crossed-slot antenna, the impedance bandwidth of the proposed antenna is effectively widen and achieves overlapped bandwidth of 16.7% for simulated |S11| and |S22|. In addition, over 35 dB isolation between two polarization and low cross-polarization level are achieved for dual-polarization operations. A gain up to 11.4 dB is obtained for 2×2 array. Most importantly, the proposed antenna array uses the aperture coupling method to enable the connection between PCB layers. It could be fabricated by stacking three layers of standard printed circuit board (PCB) laminates. With the advantages of low-cost, convenience of fabrication and desired performances, the proposed antenna is suitable for the millimeterwave antenna applications.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127506010","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 : 2017-05-01DOI: 10.1109/GSMM.2017.7970308
Peng-Fa Li, S. Qu, Yuan-Song Zeng, Shiwen Yang
A microstrip array antenna with near-field focused beam is presented in this paper, which is composed of eight series-fed and frequency-scanned linear arrays. The array focus can be scanned on the designed focal plane by frequency and through phase control. This array can be used in near-field fast scanning systems, with a low cost.
{"title":"Focused array antenna with 2-D steerable focus","authors":"Peng-Fa Li, S. Qu, Yuan-Song Zeng, Shiwen Yang","doi":"10.1109/GSMM.2017.7970308","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970308","url":null,"abstract":"A microstrip array antenna with near-field focused beam is presented in this paper, which is composed of eight series-fed and frequency-scanned linear arrays. The array focus can be scanned on the designed focal plane by frequency and through phase control. This array can be used in near-field fast scanning systems, with a low cost.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"601 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116308031","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 : 2017-05-01DOI: 10.1109/GSMM.2017.7970329
iSwee Liu, Kaixue Ma, Shouxian Mou, F. Meng
This paper given a brief and concise discussion on latest research of RFIC power amplifier (PA) designs, showing the frontier state-of-the-art developments, and then present our PA designs and some typical newest designs in expertise area with three technologies, a.k.a CMOS, SiGe, and III-V semiconductor. At last, three research hotspots and research trends about on chip PA are summarized and discussed.
{"title":"A review of recent power amplifier IC","authors":"iSwee Liu, Kaixue Ma, Shouxian Mou, F. Meng","doi":"10.1109/GSMM.2017.7970329","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970329","url":null,"abstract":"This paper given a brief and concise discussion on latest research of RFIC power amplifier (PA) designs, showing the frontier state-of-the-art developments, and then present our PA designs and some typical newest designs in expertise area with three technologies, a.k.a CMOS, SiGe, and III-V semiconductor. At last, three research hotspots and research trends about on chip PA are summarized and discussed.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127094618","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 : 2017-05-01DOI: 10.1109/GSMM.2017.7970314
Yu-Xiang Sun, K. Leung, J. Mao
A compact dual-frequency antenna with two-port excitation and large frequency ratio is presented. It consists of a circularly-polarized (CP) microstrip patch antenna at 2.4 GHz and a linearly-polarized (LP) substrate-integrated cylindrical dielectric resonator antenna (DRA) at 60 GHz, resulting in a large frequency ratio of as high as 25. The two antenna parts are designed on a single substrate, giving a very compact structure. Slot-coupled source and probes are used to excite the upper-band DRA and the lower-band patch antenna, respectively. ANSYS HFSS was used to simulate the S-parameters, radiation patterns, antenna gains, and axial ratio (AR) (patch antenna part only) of the two antenna parts. The lower-band patch antenna has an impedance bandwidth of 17.3% and AR bandwidth of 15.3%, whereas the upper-band has an impedance bandwidth of 13.15%.
{"title":"Compact dual-frequency antenna for 2.4/60 GHz applications","authors":"Yu-Xiang Sun, K. Leung, J. Mao","doi":"10.1109/GSMM.2017.7970314","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970314","url":null,"abstract":"A compact dual-frequency antenna with two-port excitation and large frequency ratio is presented. It consists of a circularly-polarized (CP) microstrip patch antenna at 2.4 GHz and a linearly-polarized (LP) substrate-integrated cylindrical dielectric resonator antenna (DRA) at 60 GHz, resulting in a large frequency ratio of as high as 25. The two antenna parts are designed on a single substrate, giving a very compact structure. Slot-coupled source and probes are used to excite the upper-band DRA and the lower-band patch antenna, respectively. ANSYS HFSS was used to simulate the S-parameters, radiation patterns, antenna gains, and axial ratio (AR) (patch antenna part only) of the two antenna parts. The lower-band patch antenna has an impedance bandwidth of 17.3% and AR bandwidth of 15.3%, whereas the upper-band has an impedance bandwidth of 13.15%.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128933144","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 : 2017-05-01DOI: 10.1109/GSMM.2017.7970307
Guansheng Lv, Wen-hua Chen, Zhenghe Feng
In this paper, we present a millimeter-wave sequential power amplifier (SPA) at the frequency of 26GHz for the first time. The proposed SPA consists of a 3dB power divider, two GaAs power amplifier chips acting as the main and peaking amplifier respectively, and an 8dB output coupler. Measurement results show 6dB back-off efficiency of 18.5% and peak output power of 24.4dBm at 26GHz. The frequency response from 26GHz to 27GHz is also given, and 6dB back-off efficiency better than 18% is achieved from 26GHz to 27GHz.
{"title":"A millimeter-wave sequential power amplifier","authors":"Guansheng Lv, Wen-hua Chen, Zhenghe Feng","doi":"10.1109/GSMM.2017.7970307","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970307","url":null,"abstract":"In this paper, we present a millimeter-wave sequential power amplifier (SPA) at the frequency of 26GHz for the first time. The proposed SPA consists of a 3dB power divider, two GaAs power amplifier chips acting as the main and peaking amplifier respectively, and an 8dB output coupler. Measurement results show 6dB back-off efficiency of 18.5% and peak output power of 24.4dBm at 26GHz. The frequency response from 26GHz to 27GHz is also given, and 6dB back-off efficiency better than 18% is achieved from 26GHz to 27GHz.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114588187","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 : 2017-05-01DOI: 10.1109/GSMM.2017.7970283
Shen‐Yun Wang, P. Xu
In this paper, we propose a three-dimensional antenna resonator consisting of a pair of inverted L-shaped wires sharing a common part, a continuous metallic ground slab, and a coaxial port loaded with a lumped matching resistor to mimic the input impedance of a rectifier. Such a resonator array can function as an efficient RF energy receiving aperture in the long-distance wireless power transmission system. Unlike the conventional receiving array, where the distance between adjacent elements is half wavelength to reduce the mutual coupling, here the distance between the receiving elements is electrically very small to achieve good impedance matching between free space and energy output port. An equivalent circuit model is proposed to explain the energy capture mechanism. Simulation results show that near unity energy capture efficiency at resonant frequency is obtained under incidence of both normal and oblique incident wave.
{"title":"Electrically small array for microwave energy harvesting","authors":"Shen‐Yun Wang, P. Xu","doi":"10.1109/GSMM.2017.7970283","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970283","url":null,"abstract":"In this paper, we propose a three-dimensional antenna resonator consisting of a pair of inverted L-shaped wires sharing a common part, a continuous metallic ground slab, and a coaxial port loaded with a lumped matching resistor to mimic the input impedance of a rectifier. Such a resonator array can function as an efficient RF energy receiving aperture in the long-distance wireless power transmission system. Unlike the conventional receiving array, where the distance between adjacent elements is half wavelength to reduce the mutual coupling, here the distance between the receiving elements is electrically very small to achieve good impedance matching between free space and energy output port. An equivalent circuit model is proposed to explain the energy capture mechanism. Simulation results show that near unity energy capture efficiency at resonant frequency is obtained under incidence of both normal and oblique incident wave.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124590884","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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