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1986 IEEE MTT-S International Microwave Symposium Digest最新文献

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Uniaxial and Biaxial Substrate Effects on Uniform Finlines and Finline Step Discontinuities 单轴和双轴基底对均匀鳍线和鳍线阶跃不连续的影响
1986 IEEE MTT-S International Microwave Symposium Digest Pub Date : 1986-06-02 DOI: 10.1109/MWSYM.1986.1132109
H. Yang, N. Alexopoulos
{"title":"Uniaxial and Biaxial Substrate Effects on Uniform Finlines and Finline Step Discontinuities","authors":"H. Yang, N. Alexopoulos","doi":"10.1109/MWSYM.1986.1132109","DOIUrl":"https://doi.org/10.1109/MWSYM.1986.1132109","url":null,"abstract":"Substrate materials exhibit inherent anisotropy which affects the dispersive characteristics of uniform finlines and finline discontinuities with increasing frequency. An accurate model is presented which accounts for uniaxial or biaxial anisotropy. The error involved in neglecting such substrate properties is discussed. In addition, the effect of anisotropy on the step discontinuity is analyzed and a comparison of the accuracy of the transverse resonance method and the mode matching technique is provided.","PeriodicalId":109161,"journal":{"name":"1986 IEEE MTT-S International Microwave Symposium Digest","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122967016","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
Isolators in Finline Technique 鳍线技术中的隔离器
1986 IEEE MTT-S International Microwave Symposium Digest Pub Date : 1986-06-02 DOI: 10.1109/MWSYM.1986.1132297
C. Schieblich, U. Goebel
{"title":"Isolators in Finline Technique","authors":"C. Schieblich, U. Goebel","doi":"10.1109/MWSYM.1986.1132297","DOIUrl":"https://doi.org/10.1109/MWSYM.1986.1132297","url":null,"abstract":"A novel configuration for finline isolators is presented. The magnetic bias field is perpendicular to the broad wall of the ferrite slab, combining resonance-t ype with field-displacement operation. 40% bandwidth in X-band with an insertion loss of 1 dB was obtained, an extension to higher frequencies is straightforward.","PeriodicalId":109161,"journal":{"name":"1986 IEEE MTT-S International Microwave Symposium Digest","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128331870","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
A Low Phase Noise MMIC/Hybrid 3.0W Amplifier at X-Band x波段低相位噪声MMIC/混合3.0W放大器
1986 IEEE MTT-S International Microwave Symposium Digest Pub Date : 1986-06-02 DOI: 10.1109/MWSYM.1986.1132220
T. Dao, S. Huettner, A. Platzker
{"title":"A Low Phase Noise MMIC/Hybrid 3.0W Amplifier at X-Band","authors":"T. Dao, S. Huettner, A. Platzker","doi":"10.1109/MWSYM.1986.1132220","DOIUrl":"https://doi.org/10.1109/MWSYM.1986.1132220","url":null,"abstract":"A power amplifier characterized by low phase modulation of the signal is important for Doppler radar systems in signal detection. Phase noise performance of -145 dBc/Hz measured at 10 kHz away from the earner has been achieved with a MMIC/ hybrid FET 3.0W X-Band amplifier. A comparison with other power amplifiers such as IMPATTs, TWTs, and magnetrons shows that the MMIC/hybrid power amplifier has a lower phase noise level. It was found experimentally that the non-linearity operation of an amplifier and the instabilities of DC regulators are the primary sources of phase noise corruption. Circuit descriptions, performances and discussion of the phase noise behavior of individual stages and of the integrated amplifier module are presented.","PeriodicalId":109161,"journal":{"name":"1986 IEEE MTT-S International Microwave Symposium Digest","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128756493","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
Three Dimensional Finite - Element Formulation for Finline Discontinuity Problems 鳍线不连续问题的三维有限元公式
1986 IEEE MTT-S International Microwave Symposium Digest Pub Date : 1986-06-02 DOI: 10.1109/MWSYM.1986.1132309
O. Picon, V. Hanna, J. Citerne
{"title":"Three Dimensional Finite - Element Formulation for Finline Discontinuity Problems","authors":"O. Picon, V. Hanna, J. Citerne","doi":"10.1109/MWSYM.1986.1132309","DOIUrl":"https://doi.org/10.1109/MWSYM.1986.1132309","url":null,"abstract":"A three dimensional finite - element formulation is proposed for finding directly the electric or magnetic field at a given frequency of excitation inside a general multiaxial finline discontinuity. It is shown that this formulation can be used to find the scattering parameters of a general finline bend discontinuity problem. Results are presented for a case study of a finline step discontinuity problem.","PeriodicalId":109161,"journal":{"name":"1986 IEEE MTT-S International Microwave Symposium Digest","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129456237","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
Analysis and Measurements of Nonradiative Dielectric Waveguide Bends 非辐射介质波导弯曲的分析与测量
1986 IEEE MTT-S International Microwave Symposium Digest Pub Date : 1986-06-02 DOI: 10.1109/MWSYM.1986.1132124
T. Yoneyama, H. Tamaki, S. Nishida
{"title":"Analysis and Measurements of Nonradiative Dielectric Waveguide Bends","authors":"T. Yoneyama, H. Tamaki, S. Nishida","doi":"10.1109/MWSYM.1986.1132124","DOIUrl":"https://doi.org/10.1109/MWSYM.1986.1132124","url":null,"abstract":"The coupling theory is applied to analyze bending loss characteristics of the nonradiative dielectric waveguide. As an application of the theory, a low loss 180° bend with a curvature radius of 5 mm was fabricated and successfully tested at 50 GHz. The measured bending loss never exceeded 0.3 dB.","PeriodicalId":109161,"journal":{"name":"1986 IEEE MTT-S International Microwave Symposium Digest","volume":"12 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120917820","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: 36
Broadband Dielectric Waveguide 3-dB Couplers Using Asymmetrical Coupled Lines 采用不对称耦合线的宽带介质波导3db耦合器
1986 IEEE MTT-S International Microwave Symposium Digest Pub Date : 1986-06-02 DOI: 10.1109/MWSYM.1986.1132130
P. Ikalainen, G. Matthaei, M. M. Monte
{"title":"Broadband Dielectric Waveguide 3-dB Couplers Using Asymmetrical Coupled Lines","authors":"P. Ikalainen, G. Matthaei, M. M. Monte","doi":"10.1109/MWSYM.1986.1132130","DOIUrl":"https://doi.org/10.1109/MWSYM.1986.1132130","url":null,"abstract":"It is shown how wideband 3-dB couplers can be designed by appropriately taking advantage of the dispersion and the frequency dependence of the coupling per unit length between two dielectric waveguides with asymmetrical cross sections. Theoretical methods for computing frequency responses of dielectric waveguide couplers composed of asymmetrical coupled guides are discussed. Experimental verifications of theoretical results are presented.","PeriodicalId":109161,"journal":{"name":"1986 IEEE MTT-S International Microwave Symposium Digest","volume":"160 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114096134","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
Microwave Device Modelling Using Efficient l/sub 1/ Optimization: A Novel Approach 基于高效l/sub /优化的微波器件建模新方法
1986 IEEE MTT-S International Microwave Symposium Digest Pub Date : 1986-06-02 DOI: 10.1109/MWSYM.1986.1132229
J. Bandler, S. Chen, S. Daijavad
{"title":"Microwave Device Modelling Using Efficient l/sub 1/ Optimization: A Novel Approach","authors":"J. Bandler, S. Chen, S. Daijavad","doi":"10.1109/MWSYM.1986.1132229","DOIUrl":"https://doi.org/10.1109/MWSYM.1986.1132229","url":null,"abstract":"A powerful modelling technique which exploits the unique properties of the l/sub 1/ norm is presented. Self-consistent models for passive and active devices are achieved by an approach that automatically checks the validity of model parameters obtained from optimization. Practical use of an efficient l/sub 1/ algorithm in complicated problems for which gradient evaluation may not be feasible, is discussed, Examples in modelling of multi-coupled cavity filters and GaAs FET's are presented.","PeriodicalId":109161,"journal":{"name":"1986 IEEE MTT-S International Microwave Symposium Digest","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116198951","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
High Dynamic Range Video Detector 高动态范围视频探测器
1986 IEEE MTT-S International Microwave Symposium Digest Pub Date : 1986-06-02 DOI: 10.1109/MWSYM.1986.1132175
R. W. Shillady
{"title":"High Dynamic Range Video Detector","authors":"R. W. Shillady","doi":"10.1109/MWSYM.1986.1132175","DOIUrl":"https://doi.org/10.1109/MWSYM.1986.1132175","url":null,"abstract":"A design technique yielding high dynamic range video, detectors is described. Increased power handling capability is gained by combining multiple detector diodes utilizing a distributed element design approach for the impedance matching structure. Bandwidth ratios greater than 10:1 with upper passband extremes to 40GHz are realizable. VSWR of less than, 2:1 has been realized covering the entire dynamic range of the detector which extends to in excess of +10dBm incident power level. The video detector is comprised of an artificial transmission line wherein the shunt capacitive elements are spaced semiconductor detector diodes and the interconnecting bonds form the series elements.","PeriodicalId":109161,"journal":{"name":"1986 IEEE MTT-S International Microwave Symposium Digest","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122004515","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 New N. FETS Oscillator-Combiner Using Tubular Dielectric Resonators 一种新型管状介电腔fet振荡合成器
1986 IEEE MTT-S International Microwave Symposium Digest Pub Date : 1986-06-02 DOI: 10.1109/MWSYM.1986.1132256
J.P. Joer, R. Quéré, J. Obregon
{"title":"A New N. FETS Oscillator-Combiner Using Tubular Dielectric Resonators","authors":"J.P. Joer, R. Quéré, J. Obregon","doi":"10.1109/MWSYM.1986.1132256","DOIUrl":"https://doi.org/10.1109/MWSYM.1986.1132256","url":null,"abstract":"A new oscillator-combiner using two tubular dieIectrlc resonators, coupled to N transistors, M presented. An equivalent \"TE\" representation having N branches is introduced allowing to derive easily the oscillation-condition . Experimental results obtained with three transistors have given an oscillator with 225 mW output power at 11 GHz without spurious modes. A combiner efficiency of 75% has been measured resulting in an overall oscillator efficiency of 15%.","PeriodicalId":109161,"journal":{"name":"1986 IEEE MTT-S International Microwave Symposium Digest","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121467591","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
Millimeter-Wave QPSK Modulator in Fin Line 鳍线毫米波QPSK调制器
1986 IEEE MTT-S International Microwave Symposium Digest Pub Date : 1986-06-02 DOI: 10.1109/MWSYM.1986.1132157
G. Gajda, C. J. Verver
{"title":"Millimeter-Wave QPSK Modulator in Fin Line","authors":"G. Gajda, C. J. Verver","doi":"10.1109/MWSYM.1986.1132157","DOIUrl":"https://doi.org/10.1109/MWSYM.1986.1132157","url":null,"abstract":"A PIN diode QPSK modulator in unilateral fin line is described for use at millimeter-wave frequencies. A parallel configuration, consisting of two 180-deqree bi-phase modulators and quadrature and in-phase hybrids, is used in order to accommodate pre-filtered data. All circuitry was implemented using unilateral fin line printed on a single side of the substrate. No stringent dimensional tolerances for either the circuit or the housing were required. Experimental results gave an overall insertion loss of 6.5 dB, and maximum phase error of 5 degrees at the design frequency (28.4 GHz). This approach for implementing a QPSK modulator lends itself to low-cost manufacturing.","PeriodicalId":109161,"journal":{"name":"1986 IEEE MTT-S International Microwave Symposium Digest","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121734684","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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