{"title":"Microstrip Array Antenna","authors":"A. Derneryd","doi":"10.1109/EUMA.1976.332297","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332297","url":null,"abstract":"An equivalent network for rectangular shaped microstrip radiating elements is derived. In order to simplify the problem the radiating elements are considered as two slots separated by a transmission line of low characteristic impedance. The slots are characterized by their equivalent admittances. The radiation conductance is derived and found to be proportional to the width for wide strips and to the square of the width for narrower strips. The equivalent susceptance, due to end effects, is represented by a capacitor. The narrow bandwidth of the microstrip radiating elements is due to the high impedance ratio between the slot and the strip. Finally, the network model is used to design a dual polarized planar array.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133047571","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}
{"title":"Optimum Design of Corrugated Feeds for Low Cross-Polar Radiation","authors":"P. Clarricoats, A. Olver, C. Parini","doi":"10.1109/EUMA.1976.332263","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332263","url":null,"abstract":"The paper describes the prediction and measurement of the cross-polar radiation from corrugated feeds. The influence of the flange, periodicity of the corrugations and corrugation depth is identified and design recommendations are made. Satisfactory agreement between experimental measurements and theoretical predictions are demonstrated for feeds which are suitable for use at the prime focus or secondary focus of a reflector antenna.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127922965","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}
{"title":"Thick Film MIC Components in the Range 10 - 20 GHz","authors":"D. Rickard","doi":"10.1109/EUMA.1976.332361","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332361","url":null,"abstract":"The capability of potentially low cost thick film micros trip is extended in frequency range, augmenting previous work restricted to below 12 GHz. Line characteristics are presented and compared with thin film results. Thick film Q-factors approach 80% of thin film values and medium definition circuits are possible. Test circuits designed and tested include band-pass filters, couplers and resistive components, emphasis being on simple fully printed configurations providing wideband performance.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133223274","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}
{"title":"Theoretical and Experimental Attenuation of the Open Ring Line","authors":"C. Fray, A. Papiernik","doi":"10.1109/EUMA.1976.332365","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332365","url":null,"abstract":"The dispersion curve and attenuation constant of the open ring line operating in the fundamental dipolar mode is discussed and this line is shown to be a low loss structure. Measurements on a line consisting of equally spaced rings of an aluminium-alloy held by a metallic rod agree with theory. The attenuation is less than 5 dB/km below 1.8 GHz. Possible applications include railway obstacle detection and telecommunications.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"26 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131242266","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}
{"title":"The Reflective ASW Multi Strip Array a Frequency Sensitive Device for Filter and Channel Bank","authors":"M. Feldmann, J. Hénaff","doi":"10.1109/EUMA.1976.332279","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332279","url":null,"abstract":"A frequency sensitive ASW structure is presented, operating by reflection of acoustic surface waves. Such a structure is of interest for frequency filters and filter banks. The response can be computed by scattering matrices leading to a good agreement with experimental results. Different configurations like fan shape electrodes can be used. In this paper, a 5-channels filter bank with a relatively good frequency separation between adjacent channels is presented. The relevant parameters like insertion loss, rejection, number of channels will be discussed and the other possible applications are described. This device meets the requirements of a frequency division multiplex.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131398697","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}
{"title":"A New Calibration Technique for Automated Broadband Microwave Measurements","authors":"H. Cronson, L. Susman","doi":"10.1109/EUMA.1976.332274","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332274","url":null,"abstract":"This paper presents new results in the area of precision microwave measurements using \"six-port techniques\". These techniques allow one to compute the complex ratio of two signals using power measurements alone. After proper calibration of the six-port network, the output of 4 simple square law diode detectors completely determines the ratio of the scattering variables at the 2 remaining ports. A unified calibration procedure is presented which has the vitue of being conceptually simple and appropriate to both vector voltmeter and reflectometer applications. Finally, an automated microwave system designed to measure the scattering parameters of a two-port network over the 2 GHz to 18 GHz band will be described in the presentation.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115705616","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}
{"title":"\"Plane Mesas\": A New Technology for High Power Stacked Varactors","authors":"A. Chapard","doi":"10.1109/EUMA.1976.332358","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332358","url":null,"abstract":"\"Plane mesa\" is the name for a new technology which yelds definite advantages when compared to traditional mesa structure, for straight forward stacking of chips, or for upside down mounting in order to reduce thermal resistances and (or) the series inductance. An example of practical application is presented in the field of stacked varactors for a doubler between 4 and 8 GHz. A single device in the standard F 27 d package delivery at 8 GHz - 15 Watts of peak power with a 50 % efficiency.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124583672","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}
{"title":"RF Power Solid State Amplifiers for Microwave Radio","authors":"A. Faotto","doi":"10.1109/EUMA.1976.332310","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332310","url":null,"abstract":"In this paper solid state microwave power amplifiers, which have been developed by GTE Telecomunicazioni for radio link equipments, are described. The main advantages of these \"division multiplication\" amplifier systems are considered, with reference to both the high overall efficiency and output power. Particular attention is paid to the performance improvements obtained by using broadband thin film frequency multipliers and transistorized microwave dividers.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"259 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114058743","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}
{"title":"A Millimeter-Wave Thermograph for Human Breast and Spine Scans","authors":"J. Edrich","doi":"10.1109/EUMA.1976.332261","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332261","url":null,"abstract":"Millimeter-wave thermographs for remote, noninvasive temperature sensing of the human body are described. Their penetration depth ranges from 0.1 mm to 1 cm thus overcoming the depth limitations of conventional infrared thermographs by several orders of magnitude. Potentially useful applications of this new method include clinical studies of the injured human spine and early detection of subcutaneous tumors such as breast cancer. Design details of an optimized, beam- or load switched thermograph for 69.5 GHz are presented which is presently undergoing clinical tests. It exhibits a temperature resolution of 0.25 °c for an integration time of 1 sec.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116734535","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}
{"title":"Low Loss Implanted Waveguides in Fused Silica","authors":"D. Moutonnet","doi":"10.1109/EUMA.1976.332327","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332327","url":null,"abstract":"With prism film coupler, we have studied the major contribution of nuclear process in index change and the influence of ion species, for low-loss waveguides.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129097263","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}