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Accurate simulation of the frequency response of millimetre-wave sige amplifiers 毫米波放大器频率响应的精确仿真
2014 1st Australian Microwave Symposium (AMS) Pub Date : 2014-06-26 DOI: 10.1109/AUSMS.2014.7017360
Leigh E. Milner, L. Hall, M. Parker
{"title":"Accurate simulation of the frequency response of millimetre-wave sige amplifiers","authors":"Leigh E. Milner, L. Hall, M. Parker","doi":"10.1109/AUSMS.2014.7017360","DOIUrl":"https://doi.org/10.1109/AUSMS.2014.7017360","url":null,"abstract":"A method of accurately simulating the frequency response of a millimeter-wave SiGe amplifier is presented. Electromagnetic (EM) simulation is applied to the cascode sub-circuit in preference to parasitic extraction resulting in improved agreement between simulated and measured performance. Including resistors and capacitors in the EM simulation allows coupling and resonance effects to be captured which improves the simulation accuracy. Close agreement is obtained between the measured and simulated results for a 30 to 40 GHz two-stage transformer coupled amplifier fabricated using IHP's 0.25μm SG25H1 process.","PeriodicalId":108280,"journal":{"name":"2014 1st Australian Microwave Symposium (AMS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127447853","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
Thermal modelling of multifinger GaAs/GaN FETs using SPICE 基于SPICE的多指GaAs/GaN场效应管热建模
2014 1st Australian Microwave Symposium (AMS) Pub Date : 2014-06-26 DOI: 10.1109/AUSMS.2014.7017339
J. Tarazi, A. Parker, B. Schwitter, S. Mahon
{"title":"Thermal modelling of multifinger GaAs/GaN FETs using SPICE","authors":"J. Tarazi, A. Parker, B. Schwitter, S. Mahon","doi":"10.1109/AUSMS.2014.7017339","DOIUrl":"https://doi.org/10.1109/AUSMS.2014.7017339","url":null,"abstract":"A simple thermal model is presented to estimate the junction temperature in multi-finger GaAs and GaN high electron mobility transistors (HEMTs). The model is implemented in SPICE by treating heat flow as analogous to the flow of electric current. The model enables a comprehensive study of different layout possibilities for devices. Results from 3D Finite Element Model (FEM) simulation and from Gate Metal Resistance Thermometry (GMRT) are compared with the model.","PeriodicalId":108280,"journal":{"name":"2014 1st Australian Microwave Symposium (AMS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127994107","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
Development of an experimental weather radar 研制一种试验性气象雷达
2014 1st Australian Microwave Symposium (AMS) Pub Date : 2014-06-26 DOI: 10.1109/AUSMS.2014.7017346
W. Al-Ashwal, M. Viola, D. Gray
{"title":"Development of an experimental weather radar","authors":"W. Al-Ashwal, M. Viola, D. Gray","doi":"10.1109/AUSMS.2014.7017346","DOIUrl":"https://doi.org/10.1109/AUSMS.2014.7017346","url":null,"abstract":"In this paper we describe the development of a novel X-band weather radar system that is fully polarimetric on a pulse by pulse basis and can be configured to operate at four different frequencies with two independent channels. The radar can be easily modified to operate at other frequency bands.","PeriodicalId":108280,"journal":{"name":"2014 1st Australian Microwave Symposium (AMS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126384866","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
Compact single-layer in-phase power divider employing microstrip to slotline transitions 紧凑的单层单相功率分配器，采用微带到槽线的转换
2014 1st Australian Microwave Symposium (AMS) Pub Date : 2014-06-26 DOI: 10.1109/AUSMS.2014.7017342
U. T. Ahmed, A. Abbosh
{"title":"Compact single-layer in-phase power divider employing microstrip to slotline transitions","authors":"U. T. Ahmed, A. Abbosh","doi":"10.1109/AUSMS.2014.7017342","DOIUrl":"https://doi.org/10.1109/AUSMS.2014.7017342","url":null,"abstract":"The design of an ultra-wideband in-phase power divider for head imaging is presented. The proposed divider employs broadside coupling via a single layer microstrip/slot configuration. It has a compact size with an overall dimension of 30 mm × 30 mm. The proposed design is suitable for single layer integration as both the input and the output ports are located at the same layer. A resistor is also used to enhance the isolation between the output ports of the device. The simulated results of the proposed divider show equal power division with less than 0.5 dB additional insertion loss, more than 15 dB isolation and more than 10 dB return loss over the band 2.5- 4.5 GHz.","PeriodicalId":108280,"journal":{"name":"2014 1st Australian Microwave Symposium (AMS)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128796613","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
First- and second-order meshless radial point interpolation methods in electromagnetics 电磁学中一阶和二阶无网格径向点插值方法
2014 1st Australian Microwave Symposium (AMS) Pub Date : 2014-06-26 DOI: 10.1109/AUSMS.2014.7017341
Z. Shaterian, T. Kaufmann, C. Fumeaux
{"title":"First- and second-order meshless radial point interpolation methods in electromagnetics","authors":"Z. Shaterian, T. Kaufmann, C. Fumeaux","doi":"10.1109/AUSMS.2014.7017341","DOIUrl":"https://doi.org/10.1109/AUSMS.2014.7017341","url":null,"abstract":"This paper compares two different approaches for the time-domain meshless Radial Point Interpolation Method (RPIM) in electromagnetic simulations. These two algorithms are classified based on the order of partial differential equations which are needed for solving EM problems. Then the advantages and issues related to those two types of formulations are discussed.","PeriodicalId":108280,"journal":{"name":"2014 1st Australian Microwave Symposium (AMS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121616011","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
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