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The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology最新文献

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Design of a narrow-band dual-mode circular waveguide filter 窄带双模圆波导滤波器的设计
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238211
Wei-Hong Han, Qingyuan Wang, Yong Chen, Yicheng Tan
{"title":"Design of a narrow-band dual-mode circular waveguide filter","authors":"Wei-Hong Han, Qingyuan Wang, Yong Chen, Yicheng Tan","doi":"10.1109/MMWCST.2012.6238211","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238211","url":null,"abstract":"A compact narrow-bard dual-mode filter using circular waveguide is introduced in this paper. Good performances with transmission zeros is achieved. And the coupling between the adjacent resonators is convenient to tune with screws.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127140429","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
A compact millimeter-wave dual-mode UWB microstrip BPF 一种紧凑型毫米波双模超宽带微带BPF
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238202
Haoying Chen, Jianhua Deng, Chao Wang, Yong Qiu
{"title":"A compact millimeter-wave dual-mode UWB microstrip BPF","authors":"Haoying Chen, Jianhua Deng, Chao Wang, Yong Qiu","doi":"10.1109/MMWCST.2012.6238202","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238202","url":null,"abstract":"A compact millimeter-wave dual-mode ultra wide-band microstrip bandpass filter is presented in this paper. This kind of filter uses hairpin resonator as its basic unit, and the input/output coupling structure can introduce transmission zeros at the both sides of the passband due to source/load (S/L) coupling. Short-circuited stub is loaded at the center of the hairpin resonator to form dual-mode resonator, which results in that a two order filter can produce four transmission poles in its wide passband. Simulation result shows good agreement with the coupling matrix synthesis result.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127473957","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 novel predistorter model for digital predistortion of RF power amplifiers 一种新的射频功率放大器数字预失真预失真器模型
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238114
X. Guo, Long Jin, Wei Tang, H. Chen
{"title":"A novel predistorter model for digital predistortion of RF power amplifiers","authors":"X. Guo, Long Jin, Wei Tang, H. Chen","doi":"10.1109/MMWCST.2012.6238114","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238114","url":null,"abstract":"Power amplifiers (PAs) are inherently nonlinear devices and are used in virtually all kinds of communication systems. Whereas, digital predistortion (DPD) is one of the cost-effective ways to improve the linearization performance of PAs. In this paper, a novel perdistorter model, which is used in digital predistortion of RF power amplifiers and based on the sum of sin function, is proposed. In the first stage, the new model is simulated in the MATLAB, then it is implemented by FPGA after accomplishing it's feasibility verification. Finally, the model is applied into the digital predistortion system and validated it's factual performance. The results show that the new predisdorter model can achieve better ACPR(Adjacent Channel Power Ratio) of the PAs' output signal when compared with the conventional polynomial predistorter model.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"308 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124385472","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
GaN HEMT large-signal model research GaN HEMT大信号模型研究
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238194
Liu Dan, Wang Liang, Chen Xiaojuan
{"title":"GaN HEMT large-signal model research","authors":"Liu Dan, Wang Liang, Chen Xiaojuan","doi":"10.1109/MMWCST.2012.6238194","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238194","url":null,"abstract":"This paper gives an AlGaN/GaN HEMT large-signal model for large-scaled device. It's the first time to add sub-threshold current based on [1], and introduces self-heating effect under high Vds large Ids in the device. AlGaN/GaN HEMT semi-empirical DC model is optimized. I-V curves are fitted well. An AlGaN/GaN HEMT large-signal model is developed. A comparison of simulation results with experiments data is made, and good agreements of (output power) and Gain at the bias of Vgs = -2V, Vds = -25V have been obtained at operational frequency of 5.4 GHz. Accurate model is offered for GaN HEMTs MIC and MMIC design, and it enhanced the practicability of GaN HEMTs' large-signal model.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"301 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115615403","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
A track association algorithm for airborne radar and IR sensor 机载雷达与红外传感器航迹关联算法
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238128
Zeyang Wang, Wei Zhang, Ke Zhang, Qingjin Zeng
{"title":"A track association algorithm for airborne radar and IR sensor","authors":"Zeyang Wang, Wei Zhang, Ke Zhang, Qingjin Zeng","doi":"10.1109/MMWCST.2012.6238128","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238128","url":null,"abstract":"The achievement of multi-sensor data fusion is based on the same target, so under the multi-target environment, the characteristics of multi-target need to be distinguished in a certain way, particularly in heterogeneous sensors data fusion. Fortunately, track association provides a method to solve this problem. In this paper, based on the airborne radar and IR sensor, a track association algorithm for heterogeneous sensor is proposed. At first, the discriminant function for track association is given through the research of fuzzy comprehensive theory. Then, the decision criterion, which includes azimuth and elevation, is used to track association. Finally, the simulation results show the effectiveness and practicality of this algorithm.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117296699","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
Design of a 10GHz bandwidth variable gain amplifier using a GaAs HBT technology 采用GaAs HBT技术设计10GHz带宽可变增益放大器
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238134
Lei Zhou, Danyu Wu, Jin Wu, Zhi Jin, Xinyu Liu
{"title":"Design of a 10GHz bandwidth variable gain amplifier using a GaAs HBT technology","authors":"Lei Zhou, Danyu Wu, Jin Wu, Zhi Jin, Xinyu Liu","doi":"10.1109/MMWCST.2012.6238134","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238134","url":null,"abstract":"This paper reports a fully differential variable gain amplifier (VGA) using GaAs heterojunction bipolar transistors (HBTs). Gilbert cells with transimpedance loads are applied to achieve wide bandwidth. According to the single-ended measurements, the 3-dB bandwidth is 10.5GHz at a maximum gain of 22dB. A gain-bandwidth product of 132GHz is achieved. The circuit consists of two cascaded variable gain stages to offer a high dynamic range. The experiment results show the dynamic range is larger than 28dB. The chip consumes 368mV at a supply voltage of -5.2V. Design considerations and experimental results are presented in this paper.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"181 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131641301","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
Phase compensation for space-fed planar microstrip reflect-array 空间馈电平面微带反射阵列的相位补偿
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238201
Haoran Zhang, D. Zhao, Hua Li, Bing-Zhong Wang
{"title":"Phase compensation for space-fed planar microstrip reflect-array","authors":"Haoran Zhang, D. Zhao, Hua Li, Bing-Zhong Wang","doi":"10.1109/MMWCST.2012.6238201","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238201","url":null,"abstract":"REFLECT-ARRAY is commonly referred to as an array whose reflector is a plane. Similar to parabolic antenna, the reflect-array is typically fed by a horn. Based on the far-field (FF) model, i.e., spherical wave model, the feed horn is assumed to have a fixed phase center so that designers can employ it as the phase reference to estimate the phase of the feed wave incident on the reflect elements and compensate for reflect-array. However, in some configurations, the reflect-array is fed in the Fresnel zone. In such cases, the FF model becomes inappropriate. The paper presents a new method to calculate the compensation phase for reflect-elements. This method utilizes the phase of the incoming wave on the reflector units as the reference to calculate the compensation phase. An array that is feed by a close horn is designed with the proposed method. The numerical results in comparison with the conventional phase center method show that the proposed method performs better.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126555674","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
Temperature compensation of cavity resonators 腔谐振器的温度补偿
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238111
Yihao Ren, Qingyuan Wang, Yicheng Tan, Guojian Wu
{"title":"Temperature compensation of cavity resonators","authors":"Yihao Ren, Qingyuan Wang, Yicheng Tan, Guojian Wu","doi":"10.1109/MMWCST.2012.6238111","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238111","url":null,"abstract":"A new structure (patent pending) is introduced to stabilize the frequency drift over temperature variations. The resonator is accurately modeled and calculated, satisfactory temperature compensation is obtained. The computed resonant frequency drift over 100°C temperature range is less than 10KHz.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123345124","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
An analysis of anti-TDOA positioning capability for MIMO radar MIMO雷达抗tdoa定位能力分析
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238157
Shaowei Yang, Zishu He, Hongming Liu, Jun Li, T. Cheng
{"title":"An analysis of anti-TDOA positioning capability for MIMO radar","authors":"Shaowei Yang, Zishu He, Hongming Liu, Jun Li, T. Cheng","doi":"10.1109/MMWCST.2012.6238157","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238157","url":null,"abstract":"The advantages of MIMO radar with orthogonal signals in anti-TDOA (Time Difference of Arrival) are discussed. First the cross-correlation between signals received by two receivers in different directions relative to MIMO radar is analyzed. It shows that the cross-correlation changes with the angle difference in certain value of which the two signals are even completely uncorrelated. Then a detailed analysis of angle-range coupling is presented based on uniform linear transmit array (ULTA) when Stepped Frequency Division Linear Frequency Modulation (SFDLFM) signals are used. The angle-range coupling will ultimately lead to the positioning deviation, thus contributing to the radar RF stealth.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116175831","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 dual-band bandpass filter with novel resonators arrangement 一种具有新型谐振器布置的双带带通滤波器
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238132
Hongzhi Xu, Wei Tang
{"title":"A dual-band bandpass filter with novel resonators arrangement","authors":"Hongzhi Xu, Wei Tang","doi":"10.1109/MMWCST.2012.6238132","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238132","url":null,"abstract":"In this paper, by using novel arrangements of two microstrip resonators, a dual-band bandpass filter is presented. By placing a couple of open-circuited stubs to the corner points of a hexangular loop resonator, the resonator structures have been formed. By means of moving gaps between the open-circuited stubs to obtain a perturbation effect, two mode frequencies and transmission zero points emerged. By using two resonators, this filter has two different passbands. Although there are two resonators, only have one feed-line. This means the two resonators share the same feed-lines. By arrange one resonator into the other, designed dual-band bandpass microstrip filters have a compact size of 12mm × 10.39mm surface area and such a configuration has been satisfied a compact structure. Several figures are demonstrated to show the simulation results.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"394 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115962234","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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