Pub Date : 2015-10-01DOI: 10.1109/ICCPS.2015.7454132
Caijie Ai, Yong Zhang, Zhong Chen
To demonstrate the feasibility of communication at atmospheric window 0.33 Terahertz (THz), design a 0.33THz receiver front-end, which include receiving antenna, 0.33THz Mixer, local oscillator and IF LNA. RF signal is generated by 110GHz local oscillator and 330GHz Tripler, putout power is beyond 0dBm without transmitting antenna. According to the test condition, just test the IF power.
{"title":"Design and test of 0.33THz receiver front-end","authors":"Caijie Ai, Yong Zhang, Zhong Chen","doi":"10.1109/ICCPS.2015.7454132","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454132","url":null,"abstract":"To demonstrate the feasibility of communication at atmospheric window 0.33 Terahertz (THz), design a 0.33THz receiver front-end, which include receiving antenna, 0.33THz Mixer, local oscillator and IF LNA. RF signal is generated by 110GHz local oscillator and 330GHz Tripler, putout power is beyond 0dBm without transmitting antenna. According to the test condition, just test the IF power.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"15 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":"121926551","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.2015.7454212
Qi-li Pi, Ye Hongtao
With the development of intelligent algorithms, particle swarm optimization (PSO) has become the hot spot for the study on objective optimization in recent years. PSO has many successful scientific and engineering applications. In this paper, a detail review of the basic concepts of PSO is provided. Several important ways to improve PSO is presented. Moreover, the theoretical analyses on PSO are provided. Finally, the applications in antenna circuit of PSO and its future challenging field are also pointed out in the remainder of this paper.
{"title":"Survey of particle swarm optimization algorithm and its applications in antenna circuit","authors":"Qi-li Pi, Ye Hongtao","doi":"10.1109/ICCPS.2015.7454212","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454212","url":null,"abstract":"With the development of intelligent algorithms, particle swarm optimization (PSO) has become the hot spot for the study on objective optimization in recent years. PSO has many successful scientific and engineering applications. In this paper, a detail review of the basic concepts of PSO is provided. Several important ways to improve PSO is presented. Moreover, the theoretical analyses on PSO are provided. Finally, the applications in antenna circuit of PSO and its future challenging field are also pointed out in the remainder of this paper.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"75 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":"116618678","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.2015.7454241
Wen Yuanyuan, C. Hao
Spectrum sensing is an important part of cognitive radio networks. The performance of the adopted spectrum sensing method is very important. When the primary user and the cognitive use rare in operation simultaneously in fading environments, performance of spectrum sensing is damaged. In this paper we quantify performance of blind spectrum sensing in fading environments and study effect of collaboration. Simulation results show that the proposed method is feasibility and lesser number of collaborating cognitive users can be needed to attain better performance of collaborative spectrum sensing in fading environments.
{"title":"A blindly collaborative spectrum sensing algorithms in fading environments","authors":"Wen Yuanyuan, C. Hao","doi":"10.1109/ICCPS.2015.7454241","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454241","url":null,"abstract":"Spectrum sensing is an important part of cognitive radio networks. The performance of the adopted spectrum sensing method is very important. When the primary user and the cognitive use rare in operation simultaneously in fading environments, performance of spectrum sensing is damaged. In this paper we quantify performance of blind spectrum sensing in fading environments and study effect of collaboration. Simulation results show that the proposed method is feasibility and lesser number of collaborating cognitive users can be needed to attain better performance of collaborative spectrum sensing in fading environments.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"28 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":"123470614","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.2015.7454109
Dong Ni, Shiwen Yang, Jinxin Li, Jixin Guo, Z. Nie
An efficient approach based on the combination of Woodward-Lawson method and differential evolution algorithm is proposed for synthesizing the irregularly shaped radiation patterns based on 4D planar arrays. Owing to the time-modulation of 4D arrays, the ripples in the coverage area and the side lobe levels are suppressed effectively. By combining the analytical method and optimization algorithm, the optimized time sequences and element excitations can be obtained. Radiation efficiency of time-modulated planar arrays also has been optimized and a significant improvement is achieved. Results of numerical examples demonstrate the effectiveness of the proposed method.
{"title":"An efficient approach for synthesizing irregularly shaped patterns based on 4D arrays","authors":"Dong Ni, Shiwen Yang, Jinxin Li, Jixin Guo, Z. Nie","doi":"10.1109/ICCPS.2015.7454109","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454109","url":null,"abstract":"An efficient approach based on the combination of Woodward-Lawson method and differential evolution algorithm is proposed for synthesizing the irregularly shaped radiation patterns based on 4D planar arrays. Owing to the time-modulation of 4D arrays, the ripples in the coverage area and the side lobe levels are suppressed effectively. By combining the analytical method and optimization algorithm, the optimized time sequences and element excitations can be obtained. Radiation efficiency of time-modulated planar arrays also has been optimized and a significant improvement is achieved. Results of numerical examples demonstrate the effectiveness of the proposed method.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"46 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":"129440713","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.2015.7454242
Yinglu Wan, Hui Chen, D. Jiang
This paper describes a microwave coupler using liquid crystals as a medium for microstrip line structure. In this design, a layer of liquid crystals is added to the ground and the substrate, and using the characteristics of anisotropy nematic liquid crystals, that is the dielectric anisotropy changes when without the bias and bias voltage is applied, to achieve the goal of continuous tunable coupler center frequency. In this paper, the design of the coupler not only has a wide bandwidth, but also the isolation (|S41|) and return loss(|S11|) are relatively excellent, especially in the center frequency, which are all better than 45dB. When the permittivity of the liquid crystals is changed from 2.4 to 3.4, the center frequency of the coupler is changed from 2.85GHz to 2.75GHz; the tunable range of up to 100MHz has been realized.
{"title":"Continuous tunable miniaturized microwave coupler using liquid crystals","authors":"Yinglu Wan, Hui Chen, D. Jiang","doi":"10.1109/ICCPS.2015.7454242","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454242","url":null,"abstract":"This paper describes a microwave coupler using liquid crystals as a medium for microstrip line structure. In this design, a layer of liquid crystals is added to the ground and the substrate, and using the characteristics of anisotropy nematic liquid crystals, that is the dielectric anisotropy changes when without the bias and bias voltage is applied, to achieve the goal of continuous tunable coupler center frequency. In this paper, the design of the coupler not only has a wide bandwidth, but also the isolation (|S41|) and return loss(|S11|) are relatively excellent, especially in the center frequency, which are all better than 45dB. When the permittivity of the liquid crystals is changed from 2.4 to 3.4, the center frequency of the coupler is changed from 2.85GHz to 2.75GHz; the tunable range of up to 100MHz has been realized.","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":"129574661","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.2015.7454183
Weichao Yang, Xinquan Yang
In order to solve the problem that the symbol rate estimation algorithm based on square envelope spectrum will significantly degrade in alpha stable distribution noise, square envelope spectrum was extended, and the new concept of generalized square envelope spectrum was put forward. On this basis, the corresponding relationship between symbol rate and pulse line in the generalized square envelope spectrum were analyzed. Finally the symbol rate was estimated indirectly by measuring pulse line. Simulation results show that the performance of this method have good performance both in the Alpha-stable distribution noise and the Gaussian noise.
{"title":"Research on symbol rate estimation based on the generalized square envelope spectrum","authors":"Weichao Yang, Xinquan Yang","doi":"10.1109/ICCPS.2015.7454183","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454183","url":null,"abstract":"In order to solve the problem that the symbol rate estimation algorithm based on square envelope spectrum will significantly degrade in alpha stable distribution noise, square envelope spectrum was extended, and the new concept of generalized square envelope spectrum was put forward. On this basis, the corresponding relationship between symbol rate and pulse line in the generalized square envelope spectrum were analyzed. Finally the symbol rate was estimated indirectly by measuring pulse line. Simulation results show that the performance of this method have good performance both in the Alpha-stable distribution noise and the Gaussian noise.","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":"129868993","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.2015.7454159
J. Zhang, Z. Qian, D. Guan, Y. Cai
This paper designed a kind of dual-circular polarized antenna based on substrate integrated waveguide structure (SIW). This antenna contains a SIW-CPW coupler and two resonant slot antennas. The coupler uses SIW as the radiation portion while coplanar waveguide (CPW) is the input matching portion that is connected directly to the active circuits, and each resonant slot antenna has six -45° or 45° radiating slots arranged on the broad wall of the radiating SIWs. What is more, the perfect combination of them can realize the function of (LHCP and RHCP). The simulation results show that the antenna has a relative bandwidth over 5.3% (22.1-23.3GHz) under axial ratio bandwidth and the isolation between two channels is higher than 22 dB within frequency band. The realizable gain is 12.2dB.
{"title":"Design of a novel dual-circular polarized based on SIW-CPW coupler","authors":"J. Zhang, Z. Qian, D. Guan, Y. Cai","doi":"10.1109/ICCPS.2015.7454159","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454159","url":null,"abstract":"This paper designed a kind of dual-circular polarized antenna based on substrate integrated waveguide structure (SIW). This antenna contains a SIW-CPW coupler and two resonant slot antennas. The coupler uses SIW as the radiation portion while coplanar waveguide (CPW) is the input matching portion that is connected directly to the active circuits, and each resonant slot antenna has six -45° or 45° radiating slots arranged on the broad wall of the radiating SIWs. What is more, the perfect combination of them can realize the function of (LHCP and RHCP). The simulation results show that the antenna has a relative bandwidth over 5.3% (22.1-23.3GHz) under axial ratio bandwidth and the isolation between two channels is higher than 22 dB within frequency band. The realizable gain is 12.2dB.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"57 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":"125358447","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.2015.7454101
Zhikai Chen, Yuehang Xu, R. Xu
A statistical model of GaN high electron mobility transistor (HEMT)'s parameters is presented. This statistical modeling approach includes principal component analysis and factor analysis and multiple regression model. When applied to the database of extracted equivalent circuit parameters (ECPs) for GaN HEMT devices, it has been validated that this approach can generate accurate statistical model by comparing original and Monte Carlo simulated means, standard deviations, correlation matrix and S-parameters. In particular, the primary goal of this work is that the statistical model has been used to perform a ku-band power amplifier design and analysis for the first time. From the results, it has proven that the parameters are statistically indistinguishable from a measured ones.
{"title":"Statistical modeling of GaN HEMT based on Monte Carlo simulations","authors":"Zhikai Chen, Yuehang Xu, R. Xu","doi":"10.1109/ICCPS.2015.7454101","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454101","url":null,"abstract":"A statistical model of GaN high electron mobility transistor (HEMT)'s parameters is presented. This statistical modeling approach includes principal component analysis and factor analysis and multiple regression model. When applied to the database of extracted equivalent circuit parameters (ECPs) for GaN HEMT devices, it has been validated that this approach can generate accurate statistical model by comparing original and Monte Carlo simulated means, standard deviations, correlation matrix and S-parameters. In particular, the primary goal of this work is that the statistical model has been used to perform a ku-band power amplifier design and analysis for the first time. From the results, it has proven that the parameters are statistically indistinguishable from a measured ones.","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":"128604914","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.2015.7454191
Wenjian Xu, Yue Xinhua, Si-min Li, W. Cao, Xi Gao, Yannan Jiang, Shujie Cao, Qian Tang
In this paper, a novel method for construction a fair mirror is proposed. Based on such the mirror, a quasi-optical mode converter for a 70-GHz TE6,2 mode has been designed. Numerical calculation shows that Gauss content of the output beam is more than 95% and basically agrees with the simulation. The mirror by the method has the advantages of fair surface that is easy to be processed with small machining error.
{"title":"The design of a new type of quasi-optical mode converter mirror system","authors":"Wenjian Xu, Yue Xinhua, Si-min Li, W. Cao, Xi Gao, Yannan Jiang, Shujie Cao, Qian Tang","doi":"10.1109/ICCPS.2015.7454191","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454191","url":null,"abstract":"In this paper, a novel method for construction a fair mirror is proposed. Based on such the mirror, a quasi-optical mode converter for a 70-GHz TE6,2 mode has been designed. Numerical calculation shows that Gauss content of the output beam is more than 95% and basically agrees with the simulation. The mirror by the method has the advantages of fair surface that is easy to be processed with small machining error.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"48 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":"124506893","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.2015.7454158
L. Hu, X. Wang
In order to design secret information hiding for public mobile communication system, this paper detailed analyzes the software and hardware solution of information hiding in Audio for mobile communication system. A speech hiding algorithm based on energy ratio adjust is presented. The hearing similarity, robustness and computational complexity of the whole system are tested and analyzed. Test results show that the confidential information can be transmitted covertly through the system.
{"title":"Design of information hiding in audio for mobile communication system based on energy ratio adjust algorithm","authors":"L. Hu, X. Wang","doi":"10.1109/ICCPS.2015.7454158","DOIUrl":"https://doi.org/10.1109/ICCPS.2015.7454158","url":null,"abstract":"In order to design secret information hiding for public mobile communication system, this paper detailed analyzes the software and hardware solution of information hiding in Audio for mobile communication system. A speech hiding algorithm based on energy ratio adjust is presented. The hearing similarity, robustness and computational complexity of the whole system are tested and analyzed. Test results show that the confidential information can be transmitted covertly through the system.","PeriodicalId":319991,"journal":{"name":"2015 IEEE International Conference on Communication Problem-Solving (ICCP)","volume":"41 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":"121039390","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：