Pub Date : 2015-10-01DOI: 10.1109/ICCPS.2015.7454092
Bing Liu, Y. Liu, Y. Zou, Ye Zhou
In this paper, synthesis and design of hybrid-shaped cavity filters using substrate integrated waveguide (SIW) technique is proposed. Both triangular - and rectangular SIW cavities are combined for the first time in the design of band pass filter. Cross-coupling structures are realized in both proposed filters via two or three propagation paths. Measured results are presented and compared to those simulated by Ansoft's High Frequency Structure Simulator (HFSS) software package. A good agreement between the simulated and measured results is observed, which has also validated the proposed filtering structure with hybrid-shaped SIW cavities.
{"title":"Design of band-pass filter using hybrid-shaped substrate integrated waveguide (SIW) cavity","authors":"Bing Liu, Y. Liu, Y. Zou, Ye Zhou","doi":"10.1109/ICCPS.2015.7454092","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454092","url":null,"abstract":"In this paper, synthesis and design of hybrid-shaped cavity filters using substrate integrated waveguide (SIW) technique is proposed. Both triangular - and rectangular SIW cavities are combined for the first time in the design of band pass filter. Cross-coupling structures are realized in both proposed filters via two or three propagation paths. Measured results are presented and compared to those simulated by Ansoft's High Frequency Structure Simulator (HFSS) software package. A good agreement between the simulated and measured results is observed, which has also validated the proposed filtering structure with hybrid-shaped SIW cavities.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"9 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123659006","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 : 2015-10-01DOI: 10.1109/ICCPS.2015.7454099
Y. Suen, S. Xiao, Yigao Xiong, Suming Hao, Xiaoxiang Zhao
We propose a new scheme to physically realize the short time Fourier transform of chirped optical pulses using time lens array that enables us to get time-frequency distribution without using FFT algorithm. The idea of Short-time Fourier transform (STFT) is physically realized in our scheme. The Fourier processor based upon a four-wave mixing time lens is used to perform the process of Fourier transformation. The ultra-short optical input signal is divided to multiple duplicates that is delayed in turn, and different short period of time of multiple duplicates are separately transformed into the frequency domain by multiple time lens. Pump pulse is both worked as the provider who has the quadratic phase and the window function of STFT. Simulations have been done to investigate performance of the time-frequency scheme compared with STFT using FFT algorithm.
{"title":"Time-frequency analysis system based on temporal Fourier transform","authors":"Y. Suen, S. Xiao, Yigao Xiong, Suming Hao, Xiaoxiang Zhao","doi":"10.1109/ICCPS.2015.7454099","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454099","url":null,"abstract":"We propose a new scheme to physically realize the short time Fourier transform of chirped optical pulses using time lens array that enables us to get time-frequency distribution without using FFT algorithm. The idea of Short-time Fourier transform (STFT) is physically realized in our scheme. The Fourier processor based upon a four-wave mixing time lens is used to perform the process of Fourier transformation. The ultra-short optical input signal is divided to multiple duplicates that is delayed in turn, and different short period of time of multiple duplicates are separately transformed into the frequency domain by multiple time lens. Pump pulse is both worked as the provider who has the quadratic phase and the window function of STFT. Simulations have been done to investigate performance of the time-frequency scheme compared with STFT using FFT algorithm.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124804302","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 : 2015-10-01DOI: 10.1109/ICCPS.2015.7454225
Yung-Yi Wang, C. Chou
This study presents a carrier-frequency-offset (CFO) estimation algorithm for the orthogonal frequency division multiplexing (OFDM) system using a general inter-carrier-interference self-cancellation (ICI-SC) precoder. The proposed approach uses the time-shift-invariant property in the ICI-SC precoded signal to estimate the CFO through the multiple signal classfication (MUSIC) algorithm. Compared to conventional CFO estimation methods, in addition to having an estimation error approaching to the Cramer-Rao lower bound (CRLB), the proposed algorithm has an adjustable CFO estimation range linearly proportional to the order of the ICI-SC.
{"title":"On the CFO estimation for precoded OFDM","authors":"Yung-Yi Wang, C. Chou","doi":"10.1109/ICCPS.2015.7454225","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454225","url":null,"abstract":"This study presents a carrier-frequency-offset (CFO) estimation algorithm for the orthogonal frequency division multiplexing (OFDM) system using a general inter-carrier-interference self-cancellation (ICI-SC) precoder. The proposed approach uses the time-shift-invariant property in the ICI-SC precoded signal to estimate the CFO through the multiple signal classfication (MUSIC) algorithm. Compared to conventional CFO estimation methods, in addition to having an estimation error approaching to the Cramer-Rao lower bound (CRLB), the proposed algorithm has an adjustable CFO estimation range linearly proportional to the order of the ICI-SC.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130590108","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 : 2015-10-01DOI: 10.1109/ICCPS.2015.7454114
Chunsheng Luo, Guanghua Lu
A new sparse frequency diverse multiple-input multiple-output (FD-MIMO) radar image reconstruction technique is proposed for off-grid targets in the Compressed sensing framework. We broaden the scope of sparse total least-squares with structured form (SS-TLS) capitalizing on prior information available about the perturbed matrix, and FoCal Underdetermined System Solver (FOCUSS) has low-computation complexity in sparse recovery. Based on SS-TLS and FOCUSS method, the present paper develops a more robust and accurate algorithm. The simulations illustrate the effectiveness of the proposed method.
{"title":"Off-grid sparse FD-MIMO image reconstruction by using improved FOCUSS technique","authors":"Chunsheng Luo, Guanghua Lu","doi":"10.1109/ICCPS.2015.7454114","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454114","url":null,"abstract":"A new sparse frequency diverse multiple-input multiple-output (FD-MIMO) radar image reconstruction technique is proposed for off-grid targets in the Compressed sensing framework. We broaden the scope of sparse total least-squares with structured form (SS-TLS) capitalizing on prior information available about the perturbed matrix, and FoCal Underdetermined System Solver (FOCUSS) has low-computation complexity in sparse recovery. Based on SS-TLS and FOCUSS method, the present paper develops a more robust and accurate algorithm. The simulations illustrate the effectiveness of the proposed method.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128664516","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 : 2015-10-01DOI: 10.1109/ICCPS.2015.7454149
Huan He, L. Xia
This paper presents a low-temperature co-fired ceramic (LTCC) equalizer, providing the maximum attenuation of 12 dB over 2 to 6 GHz. In order to reduce the size, a LTCC composite right-left handed (CRLH) resonator and a simplified composite right-left handed (SCRLH) matching network were analyzed and utilized to form the proposed passive equalizer. The insertion loss of the equalizer is less than 1.25 dB, while the return loss is better than 12 dB at 2-6 GHz band. The final size of this equalizer is 18×7×0.302 mm3, a quarter of that of traditional one.
{"title":"Microwave LTCC equalizer based on composite right/left-handed structure","authors":"Huan He, L. Xia","doi":"10.1109/ICCPS.2015.7454149","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454149","url":null,"abstract":"This paper presents a low-temperature co-fired ceramic (LTCC) equalizer, providing the maximum attenuation of 12 dB over 2 to 6 GHz. In order to reduce the size, a LTCC composite right-left handed (CRLH) resonator and a simplified composite right-left handed (SCRLH) matching network were analyzed and utilized to form the proposed passive equalizer. The insertion loss of the equalizer is less than 1.25 dB, while the return loss is better than 12 dB at 2-6 GHz band. The final size of this equalizer is 18×7×0.302 mm3, a quarter of that of traditional one.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121799801","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 : 2015-10-01DOI: 10.1109/ICCPS.2015.7454230
W. Jin, R. Xu
We developed a new device architecture for characterizing the properties of electro-optic (EO) material from the thin-film device utilizing time-domain attenuated total reflection spectroscopy in the terahertz (THz) frequency region. The properties of the test material showed good agreement with the results from pellets measurements by conventional THz-TDS system.
{"title":"Device architecture for terahertz characterization of organic electro-optic ultra-thin films using time-domain attenuated total reflection method","authors":"W. Jin, R. Xu","doi":"10.1109/ICCPS.2015.7454230","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454230","url":null,"abstract":"We developed a new device architecture for characterizing the properties of electro-optic (EO) material from the thin-film device utilizing time-domain attenuated total reflection spectroscopy in the terahertz (THz) frequency region. The properties of the test material showed good agreement with the results from pellets measurements by conventional THz-TDS system.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122660587","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 : 2015-10-01DOI: 10.1109/ICCPS.2015.7454148
Xiao-feng Li
A new type of planar monopole antenna is presented in this paper. A choke circuit grounding and slot loaded method is applied in the design. Simulation shows the antenna has a stable omni-directional radiation pattern and small reflection coefficient in a wide band range. In the frequency band from 2.2 GHz to 5.0 GHz, The antenna VSWR is less than 2, and the gain is range from 2.3-3.5dBi.
{"title":"Design of a CPW-fed wideband planar monopole antenna with omni-directional pattern improvement","authors":"Xiao-feng Li","doi":"10.1109/ICCPS.2015.7454148","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454148","url":null,"abstract":"A new type of planar monopole antenna is presented in this paper. A choke circuit grounding and slot loaded method is applied in the design. Simulation shows the antenna has a stable omni-directional radiation pattern and small reflection coefficient in a wide band range. In the frequency band from 2.2 GHz to 5.0 GHz, The antenna VSWR is less than 2, and the gain is range from 2.3-3.5dBi.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127054941","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 : 2015-10-01DOI: 10.1109/ICCPS.2015.7454087
Chao‐An Lyu, Shiwen Yang, Hangyu Zhang, Z. Nie
A new type of tightly coupled tilted dipole array element (TTCDA) is proposed in this paper. The tilted dipole antenna, connected with interdigital capacitors, has stronger coupling than the one connected directly by the end. The antenna consists of two dipole arms and four cross-type parasitic striplines, and fed by an exponential parallel balun which transforms the input impedance from 50Ω to 200Ω. The antenna is simulated in the infinite*infinite conditions through periodic boundary and the antenna achieves an impedance bandwidth of 2.15GHz - 9.67GHz when scanning to ±45° for VSWR≤3 and low cross polarization of <;-20dB over the major of the band.
{"title":"A new type of tilted tightly coupled dipole arrays with two-dimensional scanning property","authors":"Chao‐An Lyu, Shiwen Yang, Hangyu Zhang, Z. Nie","doi":"10.1109/ICCPS.2015.7454087","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454087","url":null,"abstract":"A new type of tightly coupled tilted dipole array element (TTCDA) is proposed in this paper. The tilted dipole antenna, connected with interdigital capacitors, has stronger coupling than the one connected directly by the end. The antenna consists of two dipole arms and four cross-type parasitic striplines, and fed by an exponential parallel balun which transforms the input impedance from 50Ω to 200Ω. The antenna is simulated in the infinite*infinite conditions through periodic boundary and the antenna achieves an impedance bandwidth of 2.15GHz - 9.67GHz when scanning to ±45° for VSWR≤3 and low cross polarization of <;-20dB over the major of the band.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124043524","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 : 2015-10-01DOI: 10.1109/ICCPS.2015.7454140
Yu Qiu, L. Xia, Linming Yang
This paper presents a compact bandpass filter(BFP) based on stepped impedance resonator(SIR) with multilayer liquid crystal polymer(LCP) technology. This filter has been designed using broadside coupled with SIR. Adjusting the impedance ratio and length of SIR ,the resonant points are distributed evenly in the passband of filter. The filter is fabricated using multilayer liquid crystal polymer(LCP) process. The bandpass filter presents good electrical performances by utilizing that technology. It showed that filter(5.2-7.7GHz) insertion is less than 1dB and return loss is less than 21dB by using a full-wave analysis software HFSS.
{"title":"A compact bandpass filter using multilayer LCP technology","authors":"Yu Qiu, L. Xia, Linming Yang","doi":"10.1109/ICCPS.2015.7454140","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454140","url":null,"abstract":"This paper presents a compact bandpass filter(BFP) based on stepped impedance resonator(SIR) with multilayer liquid crystal polymer(LCP) technology. This filter has been designed using broadside coupled with SIR. Adjusting the impedance ratio and length of SIR ,the resonant points are distributed evenly in the passband of filter. The filter is fabricated using multilayer liquid crystal polymer(LCP) process. The bandpass filter presents good electrical performances by utilizing that technology. It showed that filter(5.2-7.7GHz) insertion is less than 1dB and return loss is less than 21dB by using a full-wave analysis software HFSS.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128794419","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 : 2015-10-01DOI: 10.1109/ICCPS.2015.7454075
Mingqiang Bai, Jun Xing, Yong Fang
A compact wideband micro strip filter is designed based on the principle of Transversal Signal-interaction Concepts, three line coupler and DGS methods. The filter realized a broadband from 2GHz to 6GHz at the level of S11 at -15 dB, the 3dB Wideband covers from 1.6GHz to 7GHz and the insertion loss is 0.3dB with advantage of high out-of-band rejection and the whole size of the filter only covers 10*20*0.5mm3.
{"title":"Design of a wide band pass filter based on transversal signal-interaction concepts","authors":"Mingqiang Bai, Jun Xing, Yong Fang","doi":"10.1109/ICCPS.2015.7454075","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454075","url":null,"abstract":"A compact wideband micro strip filter is designed based on the principle of Transversal Signal-interaction Concepts, three line coupler and DGS methods. The filter realized a broadband from 2GHz to 6GHz at the level of S11 at -15 dB, the 3dB Wideband covers from 1.6GHz to 7GHz and the insertion loss is 0.3dB with advantage of high out-of-band rejection and the whole size of the filter only covers 10*20*0.5mm3.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"72 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127416431","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：