Pub Date : 2017-05-01DOI: 10.1109/GSMM.2017.7970276
Wan Jiang, Changjun Liu
This paper presents a novel way to design dual-frequency slot antenna based on substrate integrated waveguide (SIW) in millimeter wave range. The existing of first two modes in SIW resonator, TE101 and TE102 modes, ensure that slot cuts the current of two modes at the same time which leads to a dual-frequency performance of the slot antenna. The proposed antenna resonates at 25.8 GHz and 31.5 GHz with gain of 6.3 dB and 6.9 dB, respectively.
{"title":"A dual-frequency antenna based on substrate integrated waveguide (SIW) in millimeter-wave range","authors":"Wan Jiang, Changjun Liu","doi":"10.1109/GSMM.2017.7970276","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970276","url":null,"abstract":"This paper presents a novel way to design dual-frequency slot antenna based on substrate integrated waveguide (SIW) in millimeter wave range. The existing of first two modes in SIW resonator, TE101 and TE102 modes, ensure that slot cuts the current of two modes at the same time which leads to a dual-frequency performance of the slot antenna. The proposed antenna resonates at 25.8 GHz and 31.5 GHz with gain of 6.3 dB and 6.9 dB, respectively.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"8 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":"126545421","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.2017.7970339
Ming Yang, Cheng Jin, M. Gao
This paper presents a user terminal leaky-wave antenna (LWA) for satellite communication system in Ku-band. The motivation is to propose a low-profile broadband high-gain receiving antenna with beam-scanning and circular polarization features. The antenna is based on a lateral sparse substrate integrated waveguide, which is constructed by a microstrip line shorted with two rows of sparse and abundant periodic metallic via-holes on both sides with periodic transverse slots etched on the upper side. To achieve good circularly polarized radiation and compact configuration, non-uniform SIW width configuration is used to realize effective phase shift over the relative broadband. Measured results show that the antenna presents experimentally expected broadband matched impedance with return loss |S11| > 10 dB from 15.4 GHz to 19 GHz. The measured radiation pattern exhibits continuous frequency-scanning from 35° at 15.5 GHz to 47° at 18 GHz according to the broadside with maximum gain of 12.3 dBic. The measured axial ratio is within 3 dB from 15.9 GHz to 17.2 GHz. Measured results are in good agreement with predicted ones, and it is demonstrated that the proposed structure is a simple and compact candidate of high performance circularly-polarized antenna for satellite communications. Also the beam scanning capability of proposed antenna could find potential applications in inter-satellite communications.
{"title":"Ku-band circularly polarized leaky-wave antenna based on lateral sparse substrate integrated waveguide for satellite communication","authors":"Ming Yang, Cheng Jin, M. Gao","doi":"10.1109/GSMM.2017.7970339","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970339","url":null,"abstract":"This paper presents a user terminal leaky-wave antenna (LWA) for satellite communication system in Ku-band. The motivation is to propose a low-profile broadband high-gain receiving antenna with beam-scanning and circular polarization features. The antenna is based on a lateral sparse substrate integrated waveguide, which is constructed by a microstrip line shorted with two rows of sparse and abundant periodic metallic via-holes on both sides with periodic transverse slots etched on the upper side. To achieve good circularly polarized radiation and compact configuration, non-uniform SIW width configuration is used to realize effective phase shift over the relative broadband. Measured results show that the antenna presents experimentally expected broadband matched impedance with return loss |S11| > 10 dB from 15.4 GHz to 19 GHz. The measured radiation pattern exhibits continuous frequency-scanning from 35° at 15.5 GHz to 47° at 18 GHz according to the broadside with maximum gain of 12.3 dBic. The measured axial ratio is within 3 dB from 15.9 GHz to 17.2 GHz. Measured results are in good agreement with predicted ones, and it is demonstrated that the proposed structure is a simple and compact candidate of high performance circularly-polarized antenna for satellite communications. Also the beam scanning capability of proposed antenna could find potential applications in inter-satellite communications.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"2014 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":"132183695","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.2017.7970331
Yongle Wu, Lingxiao Jiao, Yuan’an Liu
This paper presents a dual-band coupled-line band-pass filter, which is simply composed by a three-section coupled line and two short-circuited stubs. By rigorous derivation, its transmission zeros and poles are extracted, and thus can be predicted. Finally, the simulations and experiments are carried out, and the results match well with the predicted ones.
{"title":"A dual-band coupled-line bandpass filter and the prediction of its transmission poles and zeros","authors":"Yongle Wu, Lingxiao Jiao, Yuan’an Liu","doi":"10.1109/GSMM.2017.7970331","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970331","url":null,"abstract":"This paper presents a dual-band coupled-line band-pass filter, which is simply composed by a three-section coupled line and two short-circuited stubs. By rigorous derivation, its transmission zeros and poles are extracted, and thus can be predicted. Finally, the simulations and experiments are carried out, and the results match well with the predicted ones.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"89 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":"133453043","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.2017.7970306
Hai Huy Nguyen Pham, S. Hisatake, T. Nagatsuma, I. Minin, O. Minin
The terajet, which is the generation of a jet in the terahertz (THz) frequency band (0.1 THz–10 THz), has attracted significant research interest owing to its subwavelength hotspot that can be exploited in THz imaging applications. To date, the generation of the terajet from a dielectric cuboid has been studied and verified under planar incidences. In practical applications of high-resolution THz imaging, it is essential to take into consideration the alignment of the cuboid, as well as the efficient use of the THz power. Here, we experimentally study the generation of the terajet under different oblique and compressed incidences, in order to verify the characteristics of the terajet, such as the position, direction, and full width at half maximum (FWHM) properties. We discover that the terajet can be generated under compressed incidence. The output angle of the terajet under oblique incidence is linear and identical to the input angle of the incident beam. The position of the generated terajet is varied within two wavelengths. The FWHW below one wavelength was maintained under those illumination conditions. Consequently, the cuboid can function as a novel focusing device, which can enhance the resolution by simply placing it in the imaging system with a flexible alignment.
{"title":"Experimental characterization of terajet generated from dielectric cuboid under different illumination conditions","authors":"Hai Huy Nguyen Pham, S. Hisatake, T. Nagatsuma, I. Minin, O. Minin","doi":"10.1109/GSMM.2017.7970306","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970306","url":null,"abstract":"The terajet, which is the generation of a jet in the terahertz (THz) frequency band (0.1 THz–10 THz), has attracted significant research interest owing to its subwavelength hotspot that can be exploited in THz imaging applications. To date, the generation of the terajet from a dielectric cuboid has been studied and verified under planar incidences. In practical applications of high-resolution THz imaging, it is essential to take into consideration the alignment of the cuboid, as well as the efficient use of the THz power. Here, we experimentally study the generation of the terajet under different oblique and compressed incidences, in order to verify the characteristics of the terajet, such as the position, direction, and full width at half maximum (FWHM) properties. We discover that the terajet can be generated under compressed incidence. The output angle of the terajet under oblique incidence is linear and identical to the input angle of the incident beam. The position of the generated terajet is varied within two wavelengths. The FWHW below one wavelength was maintained under those illumination conditions. Consequently, the cuboid can function as a novel focusing device, which can enhance the resolution by simply placing it in the imaging system with a flexible alignment.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"38 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":"122988027","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.2017.7970317
Xin Xiu, Ye Han, W. Che, Wanchen Yang
A novel double-polarization frequency selective rasorber is presented. Based on the equivalent circuit model, two absorption bands are created at both sides of a transmission window. Cross-frame elements loaded with resistors is employed to provide the window in passband as well as the absorbing characteristic in stopband, meanwhile circle ring slot arrays with lossless characteristic is used to match the impedance of the lossy FSS layer. A simple structure is obtained by combining these two elements. The simulation results indicate that insertion loss of 0.35 dB can be obtained at 5.25 GHz and a bandwidth of 101% for the reflection less than 10 dB is achieved under normal incidence.
{"title":"Double-polarization frequency selective rasorber based on cross-frame and circle ring slot arrays","authors":"Xin Xiu, Ye Han, W. Che, Wanchen Yang","doi":"10.1109/GSMM.2017.7970317","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970317","url":null,"abstract":"A novel double-polarization frequency selective rasorber is presented. Based on the equivalent circuit model, two absorption bands are created at both sides of a transmission window. Cross-frame elements loaded with resistors is employed to provide the window in passband as well as the absorbing characteristic in stopband, meanwhile circle ring slot arrays with lossless characteristic is used to match the impedance of the lossy FSS layer. A simple structure is obtained by combining these two elements. The simulation results indicate that insertion loss of 0.35 dB can be obtained at 5.25 GHz and a bandwidth of 101% for the reflection less than 10 dB is achieved under normal incidence.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"13 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":"117044643","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}
Several wideband millimeter-wave dielectric reflectarray antennas are discussed in this paper. Different phase distributions are realized by changing the shape or material of the array element. Three dielectric reflectarray of 20×20 elements operating at 100GHz are compared. The 1dB gain bandwidths of the dielectric reflectarray are larger than 10% and up to 40%. As compared to the microstrip reflectarray, the dielectric reflectarray can reduce the metal losses and effectively improve the gain bandwidth.
{"title":"Recent investigation of wideband millimeter-wave dielectric reflectarray in Beijing Institute of Technology","authors":"Bin Li, Ying Zhou, Meng-da Wu, Yong Liu, Yu-ming Wu, X. Lv","doi":"10.1109/GSMM.2017.7970342","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970342","url":null,"abstract":"Several wideband millimeter-wave dielectric reflectarray antennas are discussed in this paper. Different phase distributions are realized by changing the shape or material of the array element. Three dielectric reflectarray of 20×20 elements operating at 100GHz are compared. The 1dB gain bandwidths of the dielectric reflectarray are larger than 10% and up to 40%. As compared to the microstrip reflectarray, the dielectric reflectarray can reduce the metal losses and effectively improve the gain bandwidth.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"4 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":"121820608","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.2017.7970332
W. Qin, J.-X. Chen
Dielectric resonator (DR) owns advantages of high quality factor, high power capacity, superior temperature stability, moderate circuit size, etc., emerging as a promising candidate for future small base station systems. According to the field distribution of the DR's fundamental mode, proper excitation schemes are established to differentially feed the DR so that it can be applied in designing balanced/Balun filters. The most used DRs in microwave filter designs are rectangular and circular ones, as well as their derivations. This paper gives a review of the recent works on balanced/Balun filters based on the various types of dielectric resonators (DRs), which have been pursued by the authors' research group.
{"title":"Balanced/balun filters based on dielectric resonators","authors":"W. Qin, J.-X. Chen","doi":"10.1109/GSMM.2017.7970332","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970332","url":null,"abstract":"Dielectric resonator (DR) owns advantages of high quality factor, high power capacity, superior temperature stability, moderate circuit size, etc., emerging as a promising candidate for future small base station systems. According to the field distribution of the DR's fundamental mode, proper excitation schemes are established to differentially feed the DR so that it can be applied in designing balanced/Balun filters. The most used DRs in microwave filter designs are rectangular and circular ones, as well as their derivations. This paper gives a review of the recent works on balanced/Balun filters based on the various types of dielectric resonators (DRs), which have been pursued by the authors' research group.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"20 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":"114844410","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.2017.7970318
L. Bibbò, Qiang Liu, M. Lin, Qiong Wang, Z. Ouyang
In this work we have studied a structure based on Localized Surface Plasmon Resonance (LSPR) constituted by spherical gold nanoparticles in which a substance with high electro-optical properties has been inserted to verify its ability to monitor the presence of biomolecules. The study was conducted using one of FEM simulation tool verifying the optical responses to vary the sizes of the elements of the structure and the refractive index of the layer sandwiched. The results showed high sensing performance making it a potential biosensor.
{"title":"Tunable perfect absorber for bio-sensin","authors":"L. Bibbò, Qiang Liu, M. Lin, Qiong Wang, Z. Ouyang","doi":"10.1109/GSMM.2017.7970318","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970318","url":null,"abstract":"In this work we have studied a structure based on Localized Surface Plasmon Resonance (LSPR) constituted by spherical gold nanoparticles in which a substance with high electro-optical properties has been inserted to verify its ability to monitor the presence of biomolecules. The study was conducted using one of FEM simulation tool verifying the optical responses to vary the sizes of the elements of the structure and the refractive index of the layer sandwiched. The results showed high sensing performance making it a potential biosensor.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"39 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":"124362823","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.2017.7970321
Run-Shuo Li, Fulong Chen, Qiang Shao
A tunable bandpass-to-bandstop filter using stub-loaded resonators is proposed in this letter. The proposed filter employs two open-circuited stub-loaded resonators with six varactors and a PIN diode. The center frequency of the proposed filter can be flexibly controlled by adjusting both odd-mode and even-mode resonant frequencies of the resonators. The bandpass-to-bandstop transformation can be achieved by adjusting the PIN diode. In the bandpass mode, a tuning range of 680–985 MHz (36.6%) with return loss better than 13.5 dB can be achieved. In the bandstop mode, a tuning range of 715–995 MHz (32.7%) can be achieved. The rejection level of the bandstop mode is higher than 13 dB.
{"title":"A tunable bandpass-to-bandstop filter using stub-loaded resonators and PIN diode","authors":"Run-Shuo Li, Fulong Chen, Qiang Shao","doi":"10.1109/GSMM.2017.7970321","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970321","url":null,"abstract":"A tunable bandpass-to-bandstop filter using stub-loaded resonators is proposed in this letter. The proposed filter employs two open-circuited stub-loaded resonators with six varactors and a PIN diode. The center frequency of the proposed filter can be flexibly controlled by adjusting both odd-mode and even-mode resonant frequencies of the resonators. The bandpass-to-bandstop transformation can be achieved by adjusting the PIN diode. In the bandpass mode, a tuning range of 680–985 MHz (36.6%) with return loss better than 13.5 dB can be achieved. In the bandstop mode, a tuning range of 715–995 MHz (32.7%) can be achieved. The rejection level of the bandstop mode is higher than 13 dB.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"114 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":"131691026","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.2017.7970341
Jinbo Liu, Jianxun Su, Hui Zhang, Zengrui Li
The application of the continuity condition of the electric flux field at the conductor-dielectric boundaries is discussed. For the conductor-dielectric composite structures involving closed conducting surfaces, a new form of volume-surface integral equation, combined field integral equation-volume integral equation enforced the continuity condition is proposed. The matrix equation generated by the proposed method can be iteratively solved in a straightforward manner and can benefit from the application of the multilevel fast multipole algorithm. Numerical results show that the explicit enforcement of the continuity condition can reduce not only the peak memory requirement and the CPU time of a single iteration in the solution, but also the total iterative steps to reach convergence.
{"title":"The application of continuity condition in volume-surface integral equation combined with the multilevel fast multipole algorithm","authors":"Jinbo Liu, Jianxun Su, Hui Zhang, Zengrui Li","doi":"10.1109/GSMM.2017.7970341","DOIUrl":"https://doi.org/10.1109/GSMM.2017.7970341","url":null,"abstract":"The application of the continuity condition of the electric flux field at the conductor-dielectric boundaries is discussed. For the conductor-dielectric composite structures involving closed conducting surfaces, a new form of volume-surface integral equation, combined field integral equation-volume integral equation enforced the continuity condition is proposed. The matrix equation generated by the proposed method can be iteratively solved in a straightforward manner and can benefit from the application of the multilevel fast multipole algorithm. Numerical results show that the explicit enforcement of the continuity condition can reduce not only the peak memory requirement and the CPU time of a single iteration in the solution, but also the total iterative steps to reach convergence.","PeriodicalId":414423,"journal":{"name":"2017 10th Global Symposium on Millimeter-Waves","volume":"102 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":"130378215","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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