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2008 38th European Microwave Conference最新文献

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A Novel Via-less Vertical Integration Method for MEMS Scanned Phased Array Modules 一种新的MEMS扫描相控阵模块无过孔垂直集成方法
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751396
R. Al-Dahleh, R. Mansour
{"title":"A Novel Via-less Vertical Integration Method for MEMS Scanned Phased Array Modules","authors":"R. Al-Dahleh, R. Mansour","doi":"10.1109/EUMC.2008.4751396","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751396","url":null,"abstract":"A highly integrated electronically scanned phased array (ESPA) module using an innovative integration approach with MEMS processing technologies is presented. X-band monolithic 3-bit MEMS phase shifters, Wilkinson power dividers and via-less capacitive interconnects are integrated on a double-sided wafer to produce the prototype module. In order to fully integrate these components, finite ground coplanar (FGC) waveguide MEMS components are employed for the very first time without the use of interconnect vias or complex multi-layer processing. The 0.37 in2-integrated module has a bandwidth of 11% and is an enabling building block of integrated sub-system arrays for lightweight large space-based phased arrays.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134267924","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: 7
Multi-band Rejection DGS with Improved Slow-wave Effect 改进慢波效应的多波段抑制DGS
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751712
Duk‐Jae Woo, J. Lee, T.K. Lee
{"title":"Multi-band Rejection DGS with Improved Slow-wave Effect","authors":"Duk‐Jae Woo, J. Lee, T.K. Lee","doi":"10.1109/EUMC.2008.4751712","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751712","url":null,"abstract":"New techniques to suppress multiple frequency bands with a single defected ground structure(DGS) unit are developed. The proposed stacked spiral DGS, in which the spiral-shaped defects with different size are aligned in the transverse direction to the guiding direction of the coplanar waveguide (CPW), provides multiple resonance frequencies. Also, a composite spiral-rectangular DGS is proposed to provide two resonance frequencies with the same characteristic of the cascaded spiral-and dumbbell-shaped DGS units. The slow-wave effects for the proposed DGSs are greater than that of conventional spiral-or dumbbell-shaped DGS. The proposed DGSs are successfully designed and fabricated and the measured results are in a very good agreement with the simulated results.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131566724","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: 9
A Novel System for Real-time Measurement of the Electrical Properties of a Cavity Resonator 一种新型的腔谐振器电性能实时测量系统
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751388
T. Hermann, G. Olbrich, P. Russer
{"title":"A Novel System for Real-time Measurement of the Electrical Properties of a Cavity Resonator","authors":"T. Hermann, G. Olbrich, P. Russer","doi":"10.1109/EUMC.2008.4751388","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751388","url":null,"abstract":"In this paper, we present a novel ultra-fast system for continuously monitoring the electrical parameters of a microwave cavity resonator, which can be used to assess the complex dielectric constant of a time-variant material sample within the resonator. The resonator is excited near a selected resonance mode by a digitally generated multisine signal. A receiver system using a Fast Fourier Transform (FFT), with a frequency bin spacing matched to that of the multisine signal, evaluates the resonator response for a number of frequency points in parallel. Using standard numerical curve fitting methods, the resonance frequency, resonance transmission gain and quality factor of the resonator are computed from the sampled frequency response. The complex dielectric constant of a material sample in the resonator can be calculated using these electrical parameters.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131761387","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
Low Cost Embedded Duplexer Implementation for WiMAX Front-end Module with Multi-layer Organic Substrate 基于多层有机基板的WiMAX前端模块的低成本嵌入式双工实现
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751379
Kyungo Kim, T. Kim, H. Kim, D. Lee, Sung Yi
{"title":"Low Cost Embedded Duplexer Implementation for WiMAX Front-end Module with Multi-layer Organic Substrate","authors":"Kyungo Kim, T. Kim, H. Kim, D. Lee, Sung Yi","doi":"10.1109/EUMC.2008.4751379","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751379","url":null,"abstract":"In this paper, low cost and highly compact band pass filters and duplexers are investigated for Dual-band WiMAX FEM (front-end module) with multi-layered organic package substrate. This dual band FEM includes a 2,5 GHz power amplifier die with switch and should have tiny PKG form factor for small mobile applications. In addition to module size limitation, FEM requires higher gain and stringent attenuation specification for achieving better sensitivity. To implement low cost and highly compact FEM, an effective solution is to embed passive components inside PCB. The embedded BPFs and duplexer were designed on 8 layer organic substrates for finding out efficient structure and verifying FEM specifications. This components design implemented by using ADS and HFSS The dual-band FEM with embedded passive components incorporates duplexer including 2 GHz, 5 GHz BPFs. BPFs and duplexer have size of 1.65 times 1.8 times 0.12 mm, 1.32 times 1.2 times 0.12 mm, 2 times 2 times 0.6 mm respectively. Integrated dual-band BPFs show an insertion loss of Lt-1.8dB in path band and 22~40dB attenuation performance in rejection band. The measured results of BPFs and duplexer show good electrical performance with low insertion loss, high attenuation. Embedded passive Packaging technology has many advantages such as improving packaging efficiency and better electrical performances for low cost and highly compact RF SOP (system on package) applications.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132733329","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
A Practical Method to Characterize Interconnect in a Fully Loaded System, and its Application to DDR3 Channel 全负载系统互连特性的实用方法及其在DDR3信道中的应用
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751450
E. Mintarno, S. Ji
{"title":"A Practical Method to Characterize Interconnect in a Fully Loaded System, and its Application to DDR3 Channel","authors":"E. Mintarno, S. Ji","doi":"10.1109/EUMC.2008.4751450","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751450","url":null,"abstract":"In this paper we formulate and apply a practical method to characterize DDR3 interconnect in a fully loaded system where two-port measurements are not feasible, in most cases due to design topology. To overcome these limitations, we present a technique that allows two-port s-parameters extraction from three VNA or TDR one-port measurements. The method is shown to be highly accurate up to 20 GHz, thus suitable for multi-gigabit signaling system. Additionally, this paper presents time-domain differentiation technique to obtain precise frequency response of a measured TDR waveform, both magnitude and phase. The reflection coefficient can then be used to obtain two-port s-parameters from three TDR measurements. Measurement-simulation correlation of memory channel s-parameters was described and worst-case eye diagrams were computed. This paper is presented in the context of ever-growing requirement for memory channel bandwidth.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117143729","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
Electromagnetic Scattering from a Photonically Controlled Semiconductor Plasma Grating Embedded in an Insulator Slab 嵌入绝缘体板的光子控制半导体等离子体光栅的电磁散射
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751656
K. Nishimura
{"title":"Electromagnetic Scattering from a Photonically Controlled Semiconductor Plasma Grating Embedded in an Insulator Slab","authors":"K. Nishimura","doi":"10.1109/EUMC.2008.4751656","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751656","url":null,"abstract":"This paper presents scattering characteristics of a TE electromagnetic plane wave by a photonically controlled semiconductor plasma strip grating embedded in a insulator slab at millimeter wave frequencies. The characteristics are analyzed by using the moment method and estimated numerically at millimeter wave frequency bands. It is theoretically explained how the resonance anomaly and the frequency scanning characteristic are controlled by changing the plasma density.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115149854","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
Implementation of an LTCC Quad-band Module for WLAN and WiMAX Applications 用于WLAN和WiMAX应用的LTCC四频带模块的实现
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751527
Dong Ho Kim, Dongsu Kim, Jongin Ryu, J. C. Kim, Chong-Dae Park, I. Song
{"title":"Implementation of an LTCC Quad-band Module for WLAN and WiMAX Applications","authors":"Dong Ho Kim, Dongsu Kim, Jongin Ryu, J. C. Kim, Chong-Dae Park, I. Song","doi":"10.1109/EUMC.2008.4751527","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751527","url":null,"abstract":"In this paper, a compact quad-band module for Wireless Local Area Network (WLAN) and Worldwide Interoperability for Microwave Access (WiMAX) applications is realized by Low Temperature Co-fired Ceramic (LTCC) technology. The quad-band module is composed of four bandpass filters, and matching networks, which are fully embedded in the LTCC substrate, and two MMIC switches are attached on the substrate via bond wires. The fabricated quad-band module has 11 layers and it occupies less than 6.0 mm times 4.0 mm times 0.528 mm. In case of WLAN-band operation, the measured insertion losses are less than 3.8 dB in both 2 GHz and 5 GHz bands. In case of WiMAX-band operation, the insertion losses are less than 3.8 dB in both 3 GHz and 5 GHz bands. A return loss and rejection characteristics are good at all bands. The measured results of the implemented quad-band module are in pretty good agreement with the simulated results.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114633965","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
Pulse Operation of an Inverse Class-F GaN Power Amplifier 反f类GaN功率放大器的脉冲运算
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751669
H. Kim, G. Choi, Jinjoo Choi
{"title":"Pulse Operation of an Inverse Class-F GaN Power Amplifier","authors":"H. Kim, G. Choi, Jinjoo Choi","doi":"10.1109/EUMC.2008.4751669","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751669","url":null,"abstract":"This paper presents an inverse class-F power amplifier (PA) based on gallium nitride (GaN) high electron mobility transistor (HEMT) at 1 GHz. The implemented PA has a peak power-added-efficiency (PAE) of 74.1%, drain efficiency (DE) of 77.36%, and a gain of 13.76 dB at an output power of 39.58 dBm with a continuous wave operation at 28 volts. We have carried out the experiments with various pulsed operating conditions. A RF performance peak PAE of 74.28% with drain efficiency of 77.57% and a gain of 13.73 dB, at an output power of 39.66 dBm, was obtained at a pulse width of 100 mus with a duty of 10%. To evaluate the linearity of the inverse class-F amplifier, two-tone measurements have been tested. At a tone spacing of 100 kHz, the measured third-order intermodulation distortion (IMD3) was 13.2 dBc at peak PAE.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114718013","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
Modular modeling and optimization for large antenna arrays 大型天线阵列的模块化建模与优化
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751580
M. V. van Beurden, R. Dirks, A. Tijhuis
{"title":"Modular modeling and optimization for large antenna arrays","authors":"M. V. van Beurden, R. Dirks, A. Tijhuis","doi":"10.1109/EUMC.2008.4751580","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751580","url":null,"abstract":"In the next-generation phased-array systems, a closely packed system of RF functions and electronics is expected. This creates a need for both accurate and flexible design tools. We employ the generalized scattering matrix (GSM) formalism to arrive at a flexible tool with modest computational costs to enable a computer-aided design trajectory. We employ an integral equation technique to generate the scattering matrices and discuss some optimization strategies that seem appropriate for the type design problem that is obtained via the GSM formalism.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117050059","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
The Application of Macromodels to the Analysis of a Dielectric Resonator Antenna Excited by a Cavity Backed Slot 宏观模型在空腔槽激励介质谐振器天线分析中的应用
2008 38th European Microwave Conference Pub Date : 2008-10-01 DOI: 10.1109/EUMC.2008.4751503
A. Kucharski, P. Słobodzian
{"title":"The Application of Macromodels to the Analysis of a Dielectric Resonator Antenna Excited by a Cavity Backed Slot","authors":"A. Kucharski, P. Słobodzian","doi":"10.1109/EUMC.2008.4751503","DOIUrl":"https://doi.org/10.1109/EUMC.2008.4751503","url":null,"abstract":"The analysis of cavity backed, slot excited dielectric resonator antennas (DRA) is accelerated with the use of a macromodel within the framework of the IE-MoM formulation. The macromodel can be regarded as a projection of complete information about the DRA onto the slot in a wide frequency range, and thus it provides huge reduction in the total number of unknowns. Consequently, this enables a considerable decrease in computation time and makes it possible to curry out fast optimization of a feeding network structure enclosed in a cavity without the need for handling large systems of linear equations associated with the DRA.","PeriodicalId":308339,"journal":{"name":"2008 38th European Microwave Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116356258","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: 7
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