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2005 Asia-Pacific Microwave Conference Proceedings最新文献

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Microstrip antenna size reduction using feeding structure 采用馈电结构减小微带天线尺寸
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606387
J. Thakur, J. Park
{"title":"Microstrip antenna size reduction using feeding structure","authors":"J. Thakur, J. Park","doi":"10.1109/APMC.2005.1606387","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606387","url":null,"abstract":"This paper presents a compact size microstrip patch antenna for L-band application. Overall /spl sim/75% size reduction has been achieved as compare to conventional microstrip antenna for same frequency band. We have designed dual fed microstrip patch antenna to obtain wide frequency band. Branch line coupler is used for 90/spl deg/ phase shift between two vertical feed and equal power coupling. Further, delay line has been designed between branch line coupler and microstrip patch for resonant frequency reduction. We can change the resonant frequency of a microstrip patch by changing the physical parameters of the delay line.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121410602","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
The efficient variational principle for analyzing resonant performance of hole coupled lossy cavity resonator 空穴耦合损耗腔谐振器谐振特性分析的有效变分原理
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606338
Tan Kangbo, Su Tao, L. Changhong, X. Yongjun
{"title":"The efficient variational principle for analyzing resonant performance of hole coupled lossy cavity resonator","authors":"Tan Kangbo, Su Tao, L. Changhong, X. Yongjun","doi":"10.1109/APMC.2005.1606338","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606338","url":null,"abstract":"In this paper, the new variational principle considering the discontinuity in electromagnetic is given on the basis of the known . The academic analysis is made for resonant performance of the hole coupled lossy cavity, which shows the validity of the new variational principle. In fact, the validity of this principle is common.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114332979","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
Full-wave analysis of dielectric-loaded waveguide slot antennas including internal and external mutual coupling 介质负载波导缝隙天线的全波分析，包括内部和外部互耦
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606892
B. Zheng, Z. Shen, G. Wen
{"title":"Full-wave analysis of dielectric-loaded waveguide slot antennas including internal and external mutual coupling","authors":"B. Zheng, Z. Shen, G. Wen","doi":"10.1109/APMC.2005.1606892","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606892","url":null,"abstract":"A hybrid full-wave technique is proposed to analyze the structure having two slots cut in the wall of a rectangular waveguide partially filled with a dielectric slab. Each slot element is decomposed into two parts: a dielectric-loaded waveguide T-junction and an open-ended waveguide. A four-port network is composed in the T-junction cascading and the internal mutual coupling between the two slots is included automatically. The external mutual coupling is calculated by a full-wave integration method. Combining the scattering parameters of the four-port network and the external mutual coupling solves the whole waveguide slot structure. Numerical results obtained by our hybrid method are presented and compared with simulated data by Ansoft's HFSS. Good agreement is observed for all the cases considered.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114538577","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: 4
Design of a high performance RF transceiver for WiMax basestation 一种用于WiMax基站的高性能射频收发器设计
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1607078
Jianyi Zhou, Jianhong Chen, Jianing Zhao, Jianjun Wang, W. Kang
{"title":"Design of a high performance RF transceiver for WiMax basestation","authors":"Jianyi Zhou, Jianhong Chen, Jianing Zhao, Jianjun Wang, W. Kang","doi":"10.1109/APMC.2005.1607078","DOIUrl":"https://doi.org/10.1109/APMC.2005.1607078","url":null,"abstract":"In this paper, the development of an RF transceiver for WiMAX basestation is presented. The RF transceiver operates in 3.5GHz frequency band, and has the feature of low noise, excellent linearity, low phase noise, compact, high dynamic range, and high stability. The experimental results show that the RF transceiver has perfect performance for WiMAX applications.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114622689","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: 8
A preconditioned parallelized EM scattering solver 预条件平行电磁散射求解器
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606560
Y.H. Xiao, Z. Nie, J. Hu, X.F. Wang
{"title":"A preconditioned parallelized EM scattering solver","authors":"Y.H. Xiao, Z. Nie, J. Hu, X.F. Wang","doi":"10.1109/APMC.2005.1606560","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606560","url":null,"abstract":"In this paper, a preconditioned parallelized method of moments (MoM) is presented for solving the electromagnetic scattering problem of electrically large objects. A physics-based preconditioning scheme called the near field preconditioner is employed to reduce the iteration number so as to improve convergence property. And a practical selection of the control parameter of the preconditioner is also presented, which is effective in conjunction with BiCGstab(ell) solver. All of the methods adopted here is parallelized and achieved good performance.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121710582","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
Dual-channel RF receiving front-end with high linearity for WCDMA/TD-SCDMA WCDMA/TD-SCDMA高线性双通道射频接收前端
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1607093
Ling Tian, W. Hong, Xiaowei Zhu, Jin Liu
{"title":"Dual-channel RF receiving front-end with high linearity for WCDMA/TD-SCDMA","authors":"Ling Tian, W. Hong, Xiaowei Zhu, Jin Liu","doi":"10.1109/APMC.2005.1607093","DOIUrl":"https://doi.org/10.1109/APMC.2005.1607093","url":null,"abstract":"This paper presents a novel dual-channel RF receiving front-end design used for 3G system. The reasonable solution to front-end is given. The performance of component is simulated by using commercial EDA software. The whole receiver is integrated on a four-layer PCB with small size, low power consumption, high accuracy, high linearity and high sensitivity. Finally, the front-end had been tested and the measured results show that it meets the 3GPP standard perfectly. The solution is also available for dual-channel RF receiver design in cdma2000 and TD-SCDMA.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124053465","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
Compact planar monopole antenna for multi-band mobile phones 用于多波段手机的紧凑平面单极天线
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606884
X. Jing, Zhengwei Du, Ke Gong
{"title":"Compact planar monopole antenna for multi-band mobile phones","authors":"X. Jing, Zhengwei Du, Ke Gong","doi":"10.1109/APMC.2005.1606884","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606884","url":null,"abstract":"A novel planar monopole antenna suitable for mobile handset applications is presented in this paper. The antenna is mainly composed of a rectangular radiating patch with a meandered slot on, and due to the slot three branches are constructed, two resonating branches and a tuning one. The antenna is printed on an FR4 substrate and fed by a 50/spl Omega/ microstrip line. A prototype has been fabricated and studied. The resulting antenna is able to operate in the GSM, DCS, PCS, UMTS and WLAN bands with a voltage standing wave ratio (VSWR) better than 2.5. Both simulated and measured results are presented.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127685595","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: 21
The RSFQ test-timing model for delay insensitive data processing pipeline design RSFQ测试定时模型用于延迟不敏感数据处理管道设计
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606813
Zhonghai Zhang, Bo-Ran Guan
{"title":"The RSFQ test-timing model for delay insensitive data processing pipeline design","authors":"Zhonghai Zhang, Bo-Ran Guan","doi":"10.1109/APMC.2005.1606813","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606813","url":null,"abstract":"A novel asynchronous RSFQ digital circuit model, test-timed RSFQ digital model (TT) is proposed in this paper. With this asynchronous approach, data is transferred in a delay-insensitive fashion to avoid the problems aroused from the global clock distribution and the timing uncertainty. In the TT model, the timing pulse to the logic module will be generated with a test logic module, instead of the time delay module, which should be necessary in most asynchronous circuits. The elimination of the delay module can basically solve the timing uncertainty bothered in the RSFQ digital system layouts. The transient simulations and logic simulations have been made for the OR module and a RSFQ data processing pipeline based on the TT scheme has been designed. The logic simulations have also been made for this pipeline, and the results showed its feasibility and satisfaction for the RSFQ digital system applications.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"PP 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126362172","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
Single chip RF front-end MMIC solutions for future low cost, miniature size, WLAN transceiver module applications 单芯片射频前端MMIC解决方案面向未来低成本、小型化、WLAN收发模块应用
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606972
C. Yuen, K. Laursen, M. Adams, Due Chu, Hai Nguyen
{"title":"Single chip RF front-end MMIC solutions for future low cost, miniature size, WLAN transceiver module applications","authors":"C. Yuen, K. Laursen, M. Adams, Due Chu, Hai Nguyen","doi":"10.1109/APMC.2005.1606972","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606972","url":null,"abstract":"Several highly integrated RF front-end modules (FEMs) for 802.11 b/g and a/b/g applications are described. In a single 4/spl times/4 mm or 5/spl times/5 mm QFN package, these FEMs include linearized power amplifier(s), a low-noise amplifier, T/R diversity switch, filters, diplexers, power detectors, and all biasing and matching circuitry. The RF FEMs replace over 30 discrete and IC components with a single package, and require practically no external components. They have the smallest footprint of any 802.11 FEM on the market and allow significant cost savings at the system level by reducing parts count, simplifying assembly, and increasing yield.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125596165","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: 5
Design of 8/spl times/8 stacked patch array antenna on LTCC substrate operating at 40GHz band 40GHz频段LTCC基板上8/spl倍/8堆叠贴片阵列天线设计
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606878
W. Byun, K. Eun, B. Kim, Kwangseon Kim, Myung‐Sun Song
{"title":"Design of 8/spl times/8 stacked patch array antenna on LTCC substrate operating at 40GHz band","authors":"W. Byun, K. Eun, B. Kim, Kwangseon Kim, Myung‐Sun Song","doi":"10.1109/APMC.2005.1606878","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606878","url":null,"abstract":"This paper presents the design and fabrication of a very compact, cost effective and broad band 8/spl times/8 stacked patch array antenna which are backed by a metal cavity operating at 40GHz based on 4 layers LTCC technology. Gain of antenna can be enhanced by using a metal cavity, which can be easily implemented by using LTCC substrates and vias. The broadband performance can be obtained by varying the dimension of patch and the number of layers. Furthermore, to keep the feeding network as small as possible and reduce radiation from feeding network a mirrored patch orientation and embedded micro strip line are adopted. The fabricated antenna is 40/spl times/45/spl times/0.4 mm/sup 3/ in size. It shows gain 20.4dBi, beam width 10.7deg and impedance bandwidth of 10dB return loss 3.35GHz (40.9-44.25 GHz), which is about 8% of a center frequency.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"20 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125649993","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: 12
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