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Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573)最新文献

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Development and characterization of embedded thin-film capacitors for mixed signal applications on fully organic system-on-package technology 全有机系统级封装技术中混合信号应用嵌入式薄膜电容器的开发与表征
Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573) Pub Date : 2002-11-07 DOI: 10.1109/RAWCON.2002.1030152
J. M. Hobbs, S. Dalmia, V. Sundaram, L. Wan, Woopoung Kim, George E. White, Madhavan Swaminathan, Rao Tummala
{"title":"Development and characterization of embedded thin-film capacitors for mixed signal applications on fully organic system-on-package technology","authors":"J. M. Hobbs, S. Dalmia, V. Sundaram, L. Wan, Woopoung Kim, George E. White, Madhavan Swaminathan, Rao Tummala","doi":"10.1109/RAWCON.2002.1030152","DOIUrl":"https://doi.org/10.1109/RAWCON.2002.1030152","url":null,"abstract":"As part of the system on package (SOP) concept being developed at the Packaging Research Center (PRC), Georgia Institute of Technology, a test vehicle to demonstrate the suppression of simultaneous switching noise (SSN) using embedded decoupling capacitors with polymer-ceramic composites as the dielectric was implemented. Similarly, the test vehicle was used for the characterization of the dielectric to demonstrate its feasibility in RF applications. One of the key factors for the integration of future systems is the incorporation of functionality into the substrate by using low cost, low temperature (<150/spl deg/C) sequential build-up processes. In order for embedded decoupling capacitors to be effective in mixed signal systems, the material properties of the dielectric must be well characterized. For the decoupling and RF capacitor, the capacitance and the self-resonant frequency values are critical properties. Also, the impact and importance of varying dielectric thickness on a large area was studied. The capacitors developed and characterized here compare well to some commercially available surface mount components; furthermore, this work represents the first demonstration of a single embedded capacitor technology for both low to mid-frequency decoupling and RF applications on a large area fully organic substrate. This study will have significant impact on high-end mixed signal systems.","PeriodicalId":132092,"journal":{"name":"Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123955565","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
The feasibility of a variable output matching circuit in a high-power SSPA 大功率SSPA可变输出匹配电路的可行性
Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573) Pub Date : 2002-11-07 DOI: 10.1109/RAWCON.2002.1030149
A.C. Cotler, E. R. Brown
{"title":"The feasibility of a variable output matching circuit in a high-power SSPA","authors":"A.C. Cotler, E. R. Brown","doi":"10.1109/RAWCON.2002.1030149","DOIUrl":"https://doi.org/10.1109/RAWCON.2002.1030149","url":null,"abstract":"This paper analyzes a new technique for matching the output impedance of a 100-W-class solid-state power amplifier (SSPA) to a load using a variable transformer circuit consisting of switchable series-inductor and shunt-capacitor banks. A large-signal time-domain tool (Saber/spl reg/) is adapted to model the matching circuit and shows that the power-added efficiency can be made much more level with respect to input and output power than in a fixed matching circuit. For example, in a class-AB LD-MOSFET-based SSPA designed for 60% PAE at /spl sim/110 W output, the variable matching circuit allows for /spl sim/50% PAE down to about 20 W output, compared to about 25% PAE from a fixed matching circuit.","PeriodicalId":132092,"journal":{"name":"Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129288489","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 novel low loss microwave multiplexer design based on directional filters 一种基于方向滤波器的新型低损耗微波复用器设计
Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573) Pub Date : 2002-11-07 DOI: 10.1109/RAWCON.2002.1030166
V. Neubauer, M. Mayer, G. Magerl
{"title":"A novel low loss microwave multiplexer design based on directional filters","authors":"V. Neubauer, M. Mayer, G. Magerl","doi":"10.1109/RAWCON.2002.1030166","DOIUrl":"https://doi.org/10.1109/RAWCON.2002.1030166","url":null,"abstract":"A novel design method for directional filters is presented which reduces transmission loss and insertion loss. The theoretical background of directional filters is given, the frequency characteristics and transmission loss are discussed and parameters responsible for the requirements of a low loss application are worked out. A 50 /spl Omega/ multiplexer was built to act as a bandpass filter bank to separate the fundamental, second and third harmonic frequencies at the input and at the output of a digital audio broadcast (DAB) power amplifier. Finally, measurement results are compared with simulations and the improvements with respect to multiplexers previously presented are pointed out.","PeriodicalId":132092,"journal":{"name":"Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117167017","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: 13
Adaptive predistortion linearization of RF power amplifiers using lookup tables generated from subsampled data 基于次采样数据生成查找表的射频功率放大器自适应预失真线性化
Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573) Pub Date : 2002-11-07 DOI: 10.1109/RAWCON.2002.1030160
Youngcheol Park, W. Woo, R. Raich, J. Stevenson Kenney, G.T. Zhou
{"title":"Adaptive predistortion linearization of RF power amplifiers using lookup tables generated from subsampled data","authors":"Youngcheol Park, W. Woo, R. Raich, J. Stevenson Kenney, G.T. Zhou","doi":"10.1109/RAWCON.2002.1030160","DOIUrl":"https://doi.org/10.1109/RAWCON.2002.1030160","url":null,"abstract":"This paper discusses a new architecture for adaptive predistortion linearization of power amplifiers, whereby subsampled data (i.e. lower than Nyquist rate) from the input and output baseband waveforms is used to construct a lookup table. The technique utilizes a sampling downconverter that accurately captures a waveform sample in a narrow aperture before digitization. Because aliasing effects are the same for both input and output waveforms, information may be obtained regarding the amplitude and phase distortion characteristics of the power amplifier. The concept is validated using a test bed consisting of two sampling downconverters and a dual channel receiver. Results achieved indicate that 10-12 dB of adjacent channel power ratio (ACPR) improvement may be obtain using sampling rates as low as 33% of the Nyquist rate of the baseband output signal bandwidth.","PeriodicalId":132092,"journal":{"name":"Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115768582","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 2.4GHz sub-1 dB CMOS low noise amplifier with on-chip interstage inductor and parallel intrinsic capacitor 一种带有片上级间电感和并联本品电容的2.4GHz以下1db CMOS低噪声放大器
Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573) Pub Date : 2002-11-07 DOI: 10.1109/RAWCON.2002.1030143
J. Long, N. Badr, R. Weber
{"title":"A 2.4GHz sub-1 dB CMOS low noise amplifier with on-chip interstage inductor and parallel intrinsic capacitor","authors":"J. Long, N. Badr, R. Weber","doi":"10.1109/RAWCON.2002.1030143","DOIUrl":"https://doi.org/10.1109/RAWCON.2002.1030143","url":null,"abstract":"This paper presents the design of low noise amplifier with on-chip inductors integrated in a TSMC 0.18 /spl mu/m CMOS process for 2.4 GHz wireless applications. An additional capacitance in parallel with the gate capacitance of the amplifying transistor is used to optimize the noise performance with low power dissipation. An interstage inductor between the common source stage and the common gate stage is used to increase power gain. It requires only a 1.2 V supply. At 2.4 GHz and P/sub DC/ = 2.4 mW, this LNA features: noise figure = 0.76 dB with input return loss = -22.4 dB and power gain = 12.9 dB. This LNA presents the best-simulated noise figure and power dissipation performance reported for 2.4 GHz CMOS LNA.","PeriodicalId":132092,"journal":{"name":"Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114444276","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
Analysis of FDSS ultra-wideband six-port receiver FDSS超宽带六口接收机分析
Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573) Pub Date : 2002-11-07 DOI: 10.1109/RAWCON.2002.1030124
Xinyu Xu, S. Tatu, E. Moldovan, R. Bosisio, K. Wu
{"title":"Analysis of FDSS ultra-wideband six-port receiver","authors":"Xinyu Xu, S. Tatu, E. Moldovan, R. Bosisio, K. Wu","doi":"10.1109/RAWCON.2002.1030124","DOIUrl":"https://doi.org/10.1109/RAWCON.2002.1030124","url":null,"abstract":"The ultra wideband (UWB) radio system is an emerging wireless radio technology. It can transmit digital data over a wide spectrum of frequency band with very low power. This paper presents an analysis of UWB technology on a direct millimeter wave six-port receiver, to be designed as an application-specific integrated receiver using the frequency diversity spread spectrum (FDSS) technique. With wideband six-port circuits and other analog circuits, the proposed receiver provides a simple means to obtain a multi-chip module (MCM) for QPSK communications. Simulation results of BER and noise performance of the UWB six-port based receiver are shown and discussed.","PeriodicalId":132092,"journal":{"name":"Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121635742","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
OFDM-WLAN receiver performance improvement using digital compensation techniques 利用数字补偿技术改进OFDM-WLAN接收机性能
Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573) Pub Date : 2002-11-07 DOI: 10.1109/RAWCON.2002.1030130
W. Eberle, J. Tubbax, B. Come, S. Donnay, H. de Man, G. Gielen
{"title":"OFDM-WLAN receiver performance improvement using digital compensation techniques","authors":"W. Eberle, J. Tubbax, B. Come, S. Donnay, H. de Man, G. Gielen","doi":"10.1109/RAWCON.2002.1030130","DOIUrl":"https://doi.org/10.1109/RAWCON.2002.1030130","url":null,"abstract":"Zero-IF receiver architectures are preferred over superheterodyne solutions since their better integration capabilities result in cost advantages. However, zero-IF receivers present a set of analog non-idealities to the system designer. Among those, DC offsets, I/Q mismatch, phase noise, and limited dynamic range are the most challenging ones. For each or these imperfections, we propose digital compensation techniques that can either improve receiver performance considerably or allow a relaxation of the analog front-end specifications. Simulation results are presented for IEEE 802.11a-compliant receiver specifications.","PeriodicalId":132092,"journal":{"name":"Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122493976","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: 20
Non-linear spectral analysis of direct conversion wireless receivers 直接转换无线接收机的非线性频谱分析
Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573) Pub Date : 2002-11-07 DOI: 10.1109/RAWCON.2002.1030112
A. Bevilacqua, F. Svelto
{"title":"Non-linear spectral analysis of direct conversion wireless receivers","authors":"A. Bevilacqua, F. Svelto","doi":"10.1109/RAWCON.2002.1030112","DOIUrl":"https://doi.org/10.1109/RAWCON.2002.1030112","url":null,"abstract":"We exploit spectral analysis to investigate the impact of non-linearities on the performance of wireless receivers, with particular reference to the direct conversion architecture. Actual interferer spectra and interferer magnitude fluctuations are methodically taken into account by modeling signals as Gaussian stochastic processes. Input-referred second-order and third-order intermodulation powers are found to be, respectively, 7.8 dB and 1.25 dB higher than predicted by the classic sinusoidal analysis. Time domain simulations carried out using the Universal Mobile Telecommunications System (UMTS) standard as test vehicle show excellent agreement with the developed analysis, which proves to be capable of accurate bit error rate (BER) predictions.","PeriodicalId":132092,"journal":{"name":"Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122209188","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
Tunable high-Q dielectric loaded resonator and filter 可调谐高q介电负载谐振器和滤波器
Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573) Pub Date : 2002-11-07 DOI: 10.1109/RAWCON.2002.1030164
Chi Wang, W.D. Blair
{"title":"Tunable high-Q dielectric loaded resonator and filter","authors":"Chi Wang, W.D. Blair","doi":"10.1109/RAWCON.2002.1030164","DOIUrl":"https://doi.org/10.1109/RAWCON.2002.1030164","url":null,"abstract":"A novel type of tunable high Q dielectric loaded resonator and its application to filters and multiplexers are presented. The tunable dielectric loaded resonator has high unloaded Q, wide tuning range, and high temperature stability by using the ring shape DR and dielectric tuning element. The tuning properties of the resonator, such as tuning range, spurious mode, unloaded Q, and effect on couplings are investigated. Several PCS band filters and multiplexers for CDMA base station applications were designed and tested. Excellent measured frequency responses were obtained.","PeriodicalId":132092,"journal":{"name":"Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116448797","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
Power amplifiers for 60 GHz WLAN applications 用于60 GHz WLAN应用的功率放大器
Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573) Pub Date : 2002-11-07 DOI: 10.1109/RAWCON.2002.1030163
M. Varonen, M. Karkkainen, J. Riska, P. Kangaslahti, V. Porra
{"title":"Power amplifiers for 60 GHz WLAN applications","authors":"M. Varonen, M. Karkkainen, J. Riska, P. Kangaslahti, V. Porra","doi":"10.1109/RAWCON.2002.1030163","DOIUrl":"https://doi.org/10.1109/RAWCON.2002.1030163","url":null,"abstract":"This paper presents MMIC power amplifiers for 60 GHz broadband radio applications. These amplifiers have been fabricated using a commercially available 0.15 /spl mu/m GaAs pseudomorphic HEMT technology. The output compression point of the prototype three stage single ended amplifier was +15 dBm and the small signal gain, 12 dB. The improved version achieved 15.5 dB linear gain and +14 dBm compression point using 3 V supply voltage.","PeriodicalId":132092,"journal":{"name":"Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129655093","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
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