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2015 IEEE International Wireless Symposium (IWS 2015)最新文献

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Solutions of broadband RCS using the characteristic basis function method 宽带RCS的特征基函数解法
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-07-27 DOI: 10.1109/IEEE-IWS.2015.7164578
Mingyuan Zhang, Qin Zheng, Yufa Sun, Zhonggen Wang, Guohua Wang, Chenlu Li
{"title":"Solutions of broadband RCS using the characteristic basis function method","authors":"Mingyuan Zhang, Qin Zheng, Yufa Sun, Zhonggen Wang, Guohua Wang, Chenlu Li","doi":"10.1109/IEEE-IWS.2015.7164578","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164578","url":null,"abstract":"A broadband radar cross section (RCS) calculation approach is proposed based on the characteristic basis function method (CBFM). In the proposed approach, the improved ultra-wide characteristic basis functions (IUCBFs) are derived from characteristic basis functions (CBFs) at the highest frequency point and the lowest frequency point by applying a singular value decomposition (SVD) procedure. The IUCBFs can be reused for each frequency, so the electromagnetic scattering problem on the desired frequency band can be solved fast. Finally the adaptive cross approximation (ACA) algorithm is applied to accelerate the impedance matrix entry computation as well as matrix vector multiplication in the construction process of reduced matrix. The accuracy and efficiency are improved significantly compared with the traditional ultra-wide characteristic basis function method (UCBFM). Numerical results demonstrate that the proposed method is accurate and efficient.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122445492","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}
引用次数: 3
Novel SIW bandpass filters using loaded posts for application in 5.8GHz WLAN system 新型负载柱SIW带通滤波器在5.8GHz无线局域网系统中的应用
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-07-27 DOI: 10.1109/IEEE-IWS.2015.7164523
K. Wang, Zai‐Cheng Guo, Sai‐Wai Wong, Zhi-Han Chen, Lei Zhu, Rui‐Sen Chen, Q. Chu
{"title":"Novel SIW bandpass filters using loaded posts for application in 5.8GHz WLAN system","authors":"K. Wang, Zai‐Cheng Guo, Sai‐Wai Wong, Zhi-Han Chen, Lei Zhu, Rui‐Sen Chen, Q. Chu","doi":"10.1109/IEEE-IWS.2015.7164523","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164523","url":null,"abstract":"Two SIW bandpass filters (BPFs) are presented using rectangular cavities and loaded posts for 5.8GHz WLAN system using rectangular cavity and loaded posts. Except that both of them use two rectangular cavities to create a passband, they are different in setting the feed-line locations. In design, two loaded posts are introduced as inductive coupling elements to restrain the fundamental resonant mode in SIW cavity at 5.8GHz for WLAN system. In Type-A BPF, TE102 mode is used to generate transmission zero (TZ) at a specific frequency out of the desired passband. In Type-B BPF, the source-load cross-coupling is further introduced to improve the out-of-band rejection. In final, two prototype SIW bandpass filters are fabricated to prove the predicted frequency responses in experiment.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122499834","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}
引用次数: 3
Remote wideband data acquiring system based on ZC706 and AD9361 基于ZC706和AD9361的远程宽带数据采集系统
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-07-27 DOI: 10.1109/IEEE-IWS.2015.7164513
Tongxiang Shi, Wenbin Guo, Lishan Yang, Ang Li
{"title":"Remote wideband data acquiring system based on ZC706 and AD9361","authors":"Tongxiang Shi, Wenbin Guo, Lishan Yang, Ang Li","doi":"10.1109/IEEE-IWS.2015.7164513","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164513","url":null,"abstract":"With the rapid development of embedded and wireless technology, the combination of embedded system with wireless technology has gradually become a research hotspot. This paper proposes a data acquiring embedded system based on AD9361 (high speed ADC) and ZC706 (high performance FPGA embedded platform).The purpose of the proposed system in this paper is to capture wireless signal from bandwidth varies from 70 MHz to 6 GHz. Also, the system provided interface for users to adjust parameters including sampling rate, bandwidth, sampling center frequency, sampling time length, data storage. This embedded system project consists of hardware system design and software design. The hardware system is based on the combination of ARM processor and FPGA, the software is based on Software Development Kit (SDK) provided by Xilinx. Most of all, a remote data acquiring system which is based on server and client model is developed for rapid data transmission and storage through ETHERNET.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122624048","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}
引用次数: 7
A 2 to 92 GHz distributed amplifier using 70-nm InP HEMTs 使用70纳米InP hemt的2至92 GHz分布式放大器
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-07-27 DOI: 10.1109/IEEE-IWS.2015.7164547
Yihu Li, W. Goh, Y. Xiong
{"title":"A 2 to 92 GHz distributed amplifier using 70-nm InP HEMTs","authors":"Yihu Li, W. Goh, Y. Xiong","doi":"10.1109/IEEE-IWS.2015.7164547","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164547","url":null,"abstract":"This paper presents a broad band distributed amplifier (DA). The amplifying cell utilizes the cascode structure with transistor dimension mismatch. With different sizes of the transistor used, the input and output capacitance will be more balanced and hence, better impedance matching is achieved for the designed DA. 70 nm InP HEMTs are used to fabricate the proposed design, the total chip area occupied is 2.9mm×0.85mm including the bonding pads. The DA achieves a band width of 2 to 82 GHz, with the average gain of 21 dB. The total power consumption of the DA is 300 mW with a power supply voltage of 2 V.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124893958","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}
引用次数: 3
Wideband bandpass filter using open stub loaded square ring 宽带带通滤波器采用开路短段加载方形环
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-07-27 DOI: 10.1109/IEEE-IWS.2015.7164515
Cong Tang, Xianqi Lin, Yong Fan, K. Song, Daotong Li
{"title":"Wideband bandpass filter using open stub loaded square ring","authors":"Cong Tang, Xianqi Lin, Yong Fan, K. Song, Daotong Li","doi":"10.1109/IEEE-IWS.2015.7164515","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164515","url":null,"abstract":"A wideband bandpass filter under multiple resonances of stepped impedance ring resonator is proposed in this letter. The classical even- and odd-mode method is used to analyze the characteristics of the proposed resonator. It is observed that the proposed filter can operate at a wideband. For demonstration, a filter with central frequency at 2 GHz and 3-dB fractional bandwidth (FBW) of 96.7% is designed and fabricated. The experiments have good agreement with simulation.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125019403","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}
引用次数: 1
A fractal ultra-wideband loop-dipole composite antenna 分形超宽带环偶极子复合天线
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-07-27 DOI: 10.1109/IEEE-IWS.2015.7164509
Jing-Wen Shi, Zhuang Ma, Wen‐Jun Lu, Hongbo Zhu
{"title":"A fractal ultra-wideband loop-dipole composite antenna","authors":"Jing-Wen Shi, Zhuang Ma, Wen‐Jun Lu, Hongbo Zhu","doi":"10.1109/IEEE-IWS.2015.7164509","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164509","url":null,"abstract":"A compact wideband fractal loop-dipole composite antenna is presented. By introducing a Koch fractal structure, the antenna's size can be reduced while maintaining good pulse fidelity. It is demonstrated that an impedance bandwidth from 2.86 to 11.23GHz for |S11| lower than -10dB could be obtained. Furthermore, stable radiation pattern and pulse fidelity of 0.75 could be achieved in the same bandwidth.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122057256","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}
引用次数: 0
Design and implementation of a wideband 8×8 Butler Matrix for AWS and PCS 1900 MHz beamforming networks 用于AWS和PCS 1900 MHz波束形成网络的宽带8×8巴特勒矩阵的设计与实现
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-07-27 DOI: 10.1109/IEEE-IWS.2015.7164630
R. Cerna, M. Yarlequé
{"title":"Design and implementation of a wideband 8×8 Butler Matrix for AWS and PCS 1900 MHz beamforming networks","authors":"R. Cerna, M. Yarlequé","doi":"10.1109/IEEE-IWS.2015.7164630","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164630","url":null,"abstract":"This paper describes the design and implementation process of a wideband 8×8 Butler Matrix for beamforming networks in the AWS and PCS 1900 MHZ bands. In order to obtain a system able to operate in the frequency range of 1710 MHz to 2155 MHz, compact wideband branch-line hybrids, Schiffman phase shifters, parallel Schiffman phase shifters and no crossovers were used to implement the wideband 8×8 Butler Matrix. The final operation range for the 8×8 Butler Matrix is 1.65 GHz to 2.3 GHz and 2.4 GHz to 2.6 GHz. Finally, an 8-element linear array of printed Quasi-Yagi antennas was introduced in the system to verify the beamforming functionality of the 8×8 Butler Matrix. Measured radiation patterns show that the 8×8 Butler Matrix is able to provide adequate phase difference and uniform amplitude to the antenna array in order to function as a beamforming network in the frequency range of interest.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128065334","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}
引用次数: 6
A W band balanced tripler MMIC with excellent harmonic suppression and low conversion loss 一种W波段平衡三倍频MMIC，具有良好的谐波抑制和低转换损耗
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-07-27 DOI: 10.1109/IEEE-IWS.2015.7164575
Kewu Han, Tang Liu, Hui He, Jian Zhang
{"title":"A W band balanced tripler MMIC with excellent harmonic suppression and low conversion loss","authors":"Kewu Han, Tang Liu, Hui He, Jian Zhang","doi":"10.1109/IEEE-IWS.2015.7164575","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164575","url":null,"abstract":"W band multiplier with excellent harmonic suppression is of great importance in high frequency applications. In this paper, a balanced topology structure has been analyzed and applied in W band frequency tripler design. UMS 0.1 um GaAs pHEMT process is employed to fabricate the balanced tripler and the measured results prove that the harmonic suppression is more than 24 dBc. Driven by -0.5 dBm input power, output power is -6.8 dBm and the 3 dB bandwidth is 13.5 GHz from 83.5 to 96 GHz.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131550702","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}
引用次数: 1
Design of Ku/Ka band down-converter front-end for digital broadcast satellite receivers 数字广播卫星接收机Ku/Ka波段下变频前端设计
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-07-27 DOI: 10.1109/IEEE-IWS.2015.7164641
S. Hsu, Ping-Yi Wang, P. Su, Min-Chih Chou, Yin-Cheng Chang, D. Chang
{"title":"Design of Ku/Ka band down-converter front-end for digital broadcast satellite receivers","authors":"S. Hsu, Ping-Yi Wang, P. Su, Min-Chih Chou, Yin-Cheng Chang, D. Chang","doi":"10.1109/IEEE-IWS.2015.7164641","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164641","url":null,"abstract":"Different configurations and design techniques to achieve high performance Ku/Ka band down-converter front-end for digital broadcast satellite (DBS) receivers are presented. The individual blocks of low-noise amplifier (LNA), mixer, balun, and IF amplifier suitable for DBS applications are reviewed and discussed in details. Also, our recent progress in the fully-integrated low-noise blocks (LNBs) using low cost 0.18-μm SiGe BiCMOS technology for DBS down-converter is reported, including a Ku-band design with a low NF (<; 5.8 dB) and a high conversion gain up to 47.7 dB, and also a Ka-band design achieving a NF <; 6.6 dB with a conversion gain up to 49.4 dB. The output P1dB of the two designs are 5.8 dBm and 4.2 dBm, respectively.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131347284","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}
引用次数: 6
A fully analog two-way sequential GaN power amplifier with 40% fractional bandwidth 具有40%分数带宽的全模拟双向顺序GaN功率放大器
2015 IEEE International Wireless Symposium (IWS 2015) Pub Date : 2015-07-27 DOI: 10.1109/IEEE-IWS.2015.7164561
Jin Shao, R. Ma, K. Teo, S. Shinjo, K. Yamanaka
{"title":"A fully analog two-way sequential GaN power amplifier with 40% fractional bandwidth","authors":"Jin Shao, R. Ma, K. Teo, S. Shinjo, K. Yamanaka","doi":"10.1109/IEEE-IWS.2015.7164561","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2015.7164561","url":null,"abstract":"In this paper, we report a two-way sequential power amplifier (SPA) using GaN HEMTs. The proposed fully analog SPA delivers Psat of approximately 40dBm over 2-3 GHz covering 40% fractional bandwidth. The design consists of a 3dB input coupler, a main amplifier, a peak amplifier, and a 10dB output coupler for power combining. After proper designing and optimizing these critical wideband couplers in terms of both phase and amplitude alignment, the measured final SPA shows 45% to 61% drain efficiency (DE) at 35dBm (5dB backoff) output from 2.1 to 2.9 GHz under CW stimulus. A complete set of SPA with analog RF input and output network is demonstrated.","PeriodicalId":164534,"journal":{"name":"2015 IEEE International Wireless Symposium (IWS 2015)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131495537","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}
引用次数: 9
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