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ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)最新文献

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A novel multi-octave five-bit monolithic phase shifter 一种新型的多倍频5位单片移相器
ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364) Pub Date : 2000-09-14 DOI: 10.1109/ICMMT.2000.895660
Dai Yongsheng, Chen Xiaojian, Chen Tangsheng, Yu Tufa, Liu Lin, Yang Lijie, G. Shuping, Lin Jinting
{"title":"A novel multi-octave five-bit monolithic phase shifter","authors":"Dai Yongsheng, Chen Xiaojian, Chen Tangsheng, Yu Tufa, Liu Lin, Yang Lijie, G. Shuping, Lin Jinting","doi":"10.1109/ICMMT.2000.895660","DOIUrl":"https://doi.org/10.1109/ICMMT.2000.895660","url":null,"abstract":"The design, fabrication and performance of a novel multi-octave five-bit GaAs MMIC phase shifter is described. The topology was specifically selected to minimize process variations on performance. The topology of 22.5/spl deg/ and 11.25/spl deg/ phase shift bits is a sharing Lange coupler. Low peak phase error (PPE) (/spl les/5 degree for 180/spl deg/, 90/spl deg/, 45/spl deg/ phase shift bits, /spl les/2.5/spl deg/ for 22.5/spl deg/, 11.25/spl deg/ phase shift bits), low VSWR (/spl les/1.7), low insertion loss variations (/spl les/12.8/spl plusmn/0.7 dB) are exhibited over 5 to 20 GHz frequency range. The chip size of the MMIC phase shifter is 4.2 mm/spl times/2.98 mm/spl times/0.1 mm.","PeriodicalId":354225,"journal":{"name":"ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122627291","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
Harmonic impedance and radiation control for an active patch antenna 有源贴片天线的谐波阻抗与辐射控制
ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364) Pub Date : 2000-09-14 DOI: 10.1109/ICMMT.2000.895669
E. Elkhazmi, N. McEwan, N. Ali
{"title":"Harmonic impedance and radiation control for an active patch antenna","authors":"E. Elkhazmi, N. McEwan, N. Ali","doi":"10.1109/ICMMT.2000.895669","DOIUrl":"https://doi.org/10.1109/ICMMT.2000.895669","url":null,"abstract":"A shaping technique for the radiator of an active patch antenna is described, and shown experimentally to reduce harmonic radiation, the result is increased conversion efficiency. The perturbation of resonant mode frequencies in a deformed rectangular patch radiator is discussed as a possible basis for systematic design.","PeriodicalId":354225,"journal":{"name":"ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123901132","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
Stability analysis of a TWT against the reflected signals using a large-signal model 用大信号模型分析行波管对反射信号的稳定性
ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364) Pub Date : 2000-09-14 DOI: 10.1109/ICMMT.2000.895625
V. Srivastava, S. Joshi, R. Carter
{"title":"Stability analysis of a TWT against the reflected signals using a large-signal model","authors":"V. Srivastava, S. Joshi, R. Carter","doi":"10.1109/ICMMT.2000.895625","DOIUrl":"https://doi.org/10.1109/ICMMT.2000.895625","url":null,"abstract":"A large signal model is used to analyze the stability of a high gain helix TWT against the reflected signals caused by mismatches at its input and output terminations. The stability of a section of the tube in the presence of the reflected signals is determined by making a number of passes through the section for a very low drive power. A section is considered stable if the output power converges after 4 passes. If the output power goes on increasing or does not converge then the section is defined as unstable. Results are presented for a 60 W helix TWT which is designed both in a two-section and in a three-section configuration for a small-signal gain of more than 60 dB. It is shown that the two-section TWT can be made stable with 10 dB return loss at the input and output terminations, only if the tip loss profile at the sever can be designed to have a return loss of more than 30 dB. For the three-section tube, the return loss at the sever does not need to be greater than 20 dB for stable output performance.","PeriodicalId":354225,"journal":{"name":"ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125594385","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
MMIC modeling technique and its application MMIC建模技术及其应用
ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364) Pub Date : 2000-09-14 DOI: 10.1109/ICMMT.2000.895596
Xiaojian Chen, Xuejun Chen, Yuanfei Cen, Yong-sheng Dai, Junxian Wan, Hui Li
{"title":"MMIC modeling technique and its application","authors":"Xiaojian Chen, Xuejun Chen, Yuanfei Cen, Yong-sheng Dai, Junxian Wan, Hui Li","doi":"10.1109/ICMMT.2000.895596","DOIUrl":"https://doi.org/10.1109/ICMMT.2000.895596","url":null,"abstract":"The technique of MMIC modeling at Nanjing Electronic Devices Institute (NEDI) is presented. The layout design of the modeling FET (PHEMT), microwave probing calibration, model extraction and statistics/verification are introduced and discussed. By using the established models, several MMICs such as power amplifiers, LNAs, mixers, switches and phase shifters were successfully developed, covering applications in transmission, reception and controlled circuit with frequencies up to the 20 GHz range.","PeriodicalId":354225,"journal":{"name":"ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128048327","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
3-4 GHz bandpass filters using dielectric-filled stepped impedance resonators 使用介电填充阶跃阻抗谐振器的3-4 GHz带通滤波器
ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364) Pub Date : 2000-09-14 DOI: 10.1109/ICMMT.2000.895633
Zhao Hua-De, Li Xing-hua, Wang Rong
{"title":"3-4 GHz bandpass filters using dielectric-filled stepped impedance resonators","authors":"Zhao Hua-De, Li Xing-hua, Wang Rong","doi":"10.1109/ICMMT.2000.895633","DOIUrl":"https://doi.org/10.1109/ICMMT.2000.895633","url":null,"abstract":"The authors describe the principle of the /spl lambda//sub g//2 dielectric-filled stepped impedance resonator and the design formulae are derived. The filters of the 3-4 GHz band using /spl lambda//sub g//2 dielectric-filled stepped impedance resonators provide low insertion loss (3.5 dB) small passband ripple (/spl plusmn/0.5), high stop-band (27 dB), small size, light weight and high stability.","PeriodicalId":354225,"journal":{"name":"ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128066474","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
A simple model of designing CPW-fed slot antenna 一种简单的cpw馈电槽天线设计模型
ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364) Pub Date : 2000-09-14 DOI: 10.1109/ICMMT.2000.895701
Jen-Fen Huang
{"title":"A simple model of designing CPW-fed slot antenna","authors":"Jen-Fen Huang","doi":"10.1109/ICMMT.2000.895701","DOIUrl":"https://doi.org/10.1109/ICMMT.2000.895701","url":null,"abstract":"In the past, there is no strictly theoretical method to estimate the dimensions of a coplanar waveguide-fed slot antenna. This paper adopts two-port circuit transmission line theory to obtain optimal dimensions of a one port slot antenna at a given frequency. Then the short-end extension length of slot antenna is estimated to correct the initial estimated length from transmission theory. Full wave spectral domain approach is used to discuss the radiation field pattern with varied dimensions of slot antenna.","PeriodicalId":354225,"journal":{"name":"ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127065436","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: 2
Linear FM/chirped radar receiver matched filter implementation 线性调频/啁啾雷达接收机匹配滤波器实现
ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364) Pub Date : 2000-09-14 DOI: 10.1109/ICMMT.2000.895782
Xin Wu, Yuan Wu, Weixian Liu, J. S. Fu
{"title":"Linear FM/chirped radar receiver matched filter implementation","authors":"Xin Wu, Yuan Wu, Weixian Liu, J. S. Fu","doi":"10.1109/ICMMT.2000.895782","DOIUrl":"https://doi.org/10.1109/ICMMT.2000.895782","url":null,"abstract":"The matched filter has been implemented on TI TMS320C6201 Evaluation Module (EVM) digital signal processing board as a part of a linear FM radar receiver. Both time and frequency domain techniques were applied for implementation. The optimal processing speed has been achieved by fully exploiting the capacities of the EVM's 8 independent functional units. Simulations have been carried out using Signal Processing Workbench (SPW) prior to implementation to verify the algorithms.","PeriodicalId":354225,"journal":{"name":"ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126410025","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
IF amplifier module for high-sweep speed LFMCW radar 用于高速LFMCW雷达的中频放大器模块
ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364) Pub Date : 2000-09-14 DOI: 10.1109/ICMMT.2000.895774
Liwan Liang, Yang Li, Weifeng Pang, Zhenhe Feng
{"title":"IF amplifier module for high-sweep speed LFMCW radar","authors":"Liwan Liang, Yang Li, Weifeng Pang, Zhenhe Feng","doi":"10.1109/ICMMT.2000.895774","DOIUrl":"https://doi.org/10.1109/ICMMT.2000.895774","url":null,"abstract":"A new IF module for linear frequency modulated continuous wave (LFMCW) radar is proposed in this paper, which is implemented with a low-cost and simple architecture and can be used for high sweep frequency. The scheme can improve system SNR and support implementation of a time-division switching antenna array (TDSAA). The performance of the scheme is analyzed and the experimental results are described in detail.","PeriodicalId":354225,"journal":{"name":"ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)","volume":"102 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120863694","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
Numerical method for EM cavity by operator theory 基于算子理论的电磁空腔数值计算方法
ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364) Pub Date : 2000-09-14 DOI: 10.1109/ICMMT.2000.895679
Z. Pengfei, Lin Yu, Xuming Tang, Z. Juan, Xu Cheng, Song Wenmiao
{"title":"Numerical method for EM cavity by operator theory","authors":"Z. Pengfei, Lin Yu, Xuming Tang, Z. Juan, Xu Cheng, Song Wenmiao","doi":"10.1109/ICMMT.2000.895679","DOIUrl":"https://doi.org/10.1109/ICMMT.2000.895679","url":null,"abstract":"The boundary value problems of electromagnetic fields have been extensively studied but can't be considered completely solved. In this paper a new method is suggested using modern electromagnetic theory. This theory is a macro electrodynamics theory based on the modern mathematics and physics not classical mathematics and physics.","PeriodicalId":354225,"journal":{"name":"ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127568447","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
Bias field/frequency characteristic of millimeter wave semiconductor resonators at 77/spl deg/K 毫米波半导体谐振器在77/声压度/K下的偏置场/频率特性
ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364) Pub Date : 2000-09-14 DOI: 10.1109/ICMMT.2000.895734
S. Sheikh
{"title":"Bias field/frequency characteristic of millimeter wave semiconductor resonators at 77/spl deg/K","authors":"S. Sheikh","doi":"10.1109/ICMMT.2000.895734","DOIUrl":"https://doi.org/10.1109/ICMMT.2000.895734","url":null,"abstract":"Axially magnetized planar gyroelectric resonators are characterized for both InSb and GaAs semiconductors at 77/spl deg/K. The calculations assume that these materials are represented by the tensor permittivity derived from the Drude model of cyclotron motion in a plasma. Modal information is presented in terms of bias field and signal frequency. Resonance and loss regions are identified. The dependency of the modal characteristics on changing material and geometrical properties of the resonator are illustrated. In order to measure the millimeter-wave properties of the magnetized semiconductor disk, a two port network is analyzed using the Green's function approach. This method is vital in calibrating the semiconductor material before designing magnetized semiconductor junction circulators for high-T/sub c/ superconductive circuits.","PeriodicalId":354225,"journal":{"name":"ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128413192","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
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