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2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals最新文献

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Duplexer application for a band-pass filter with open stub using parallel coupled-line 双工器应用于使用平行耦合线的开存根带通滤波器
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027218
T. Jung, K. Yoon, Dong-Ki Lee, H. Nam, Hyunwook Lee, Jae-Yeong Lee, Kyo-Soon Choi, M. Lim, Jong‐Chul Lee
{"title":"Duplexer application for a band-pass filter with open stub using parallel coupled-line","authors":"T. Jung, K. Yoon, Dong-Ki Lee, H. Nam, Hyunwook Lee, Jae-Yeong Lee, Kyo-Soon Choi, M. Lim, Jong‐Chul Lee","doi":"10.1109/IMWS2.2011.6027218","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027218","url":null,"abstract":"In this paper, a duplexer using the open stub band-pass filter(BPF) with parallel coupled line is presented. The suggested duplexer is composed of distributed elements and planar substrate and it has characteristic of excellent isolation. The operating frequencies of the duplexer are respectively 5.8 GHz and 4.8 GHz at the RX and TX for C-band wireless communication systems. Also, the deviation frequency is 40 MHz and the bandwidth of filter is 10 %. The experimental results for insertion losses of filters are less than 2 dB at RX and TX, while the return losses are better than 15 dB.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127187513","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
User cooperation-assisted multi-cell MIMO networks 用户协作辅助多小区MIMO网络
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027189
W. Shin, N. Lee, Jong-Bu Lim, Changyong Shin, Kyunghun Jang, Yoon-Chae Cheong
{"title":"User cooperation-assisted multi-cell MIMO networks","authors":"W. Shin, N. Lee, Jong-Bu Lim, Changyong Shin, Kyunghun Jang, Yoon-Chae Cheong","doi":"10.1109/IMWS2.2011.6027189","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027189","url":null,"abstract":"We explore the interplay between interference, cooperation, and feedback in multi-cell networks. Specifically, this paper focuses on G-cell multiple-input multiple-output Gaussian interfering broadcast channels (MIMO-IFBC) with K cooperating users on the cell-boundary of each base station. It corresponds to a downlink scenario for cellular networks with G base stations, and K users equipped with Wi-Fi interfaces enabling to cooperate among users on a peer-to-peer basis. In this scenario, we propose a novel interference alignment technique exploiting user cooperation. Our proposed algorithm obtains the total degrees of freedom (DoF) of GK to be achieved by transmitting one stream to each user from its corresponding BS, when each BS and cell-edge user has M = K + (G − 1)dalign transmit antennas and N = ⌊(M(G − 1)(K − dalign) + 1)/K⌋ receive antennas as a minimum antenna configuration, respectively, where ∀dalign ∈ {1,2,…K}. Furthermore, the algorithm requires only a small amount of channel feedback information with the aid of the user cooperation channels. The simulations demonstrate that not only are the analytical results valid, but the achievable DoF of our proposed algorithm also outperforms those of conventional techniques.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130171886","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
Design of a new elliptic function filter using a double spiral resonator with zero order characteristic 利用零阶特性的双螺旋谐振器设计新的椭圆函数滤波器
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027182
Kyo-Soon Choi, K. Yoon, H. Nam, Hyunwook Lee, Dong-Ki Lee, Jae-Yeong Lee, Meng Lee, T. Jung, Jong‐Chul Lee
{"title":"Design of a new elliptic function filter using a double spiral resonator with zero order characteristic","authors":"Kyo-Soon Choi, K. Yoon, H. Nam, Hyunwook Lee, Dong-Ki Lee, Jae-Yeong Lee, Meng Lee, T. Jung, Jong‐Chul Lee","doi":"10.1109/IMWS2.2011.6027182","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027182","url":null,"abstract":"In this paper, a new design of the advanced elliptic function RF/microwave filter is presented. This filter is designed with compact size using novel miniaturized resonators. This new type of filter includes zero order characteristic with double spiral resonator. The resonator shows sharp cut-off frequency response and possibility of size reduction. The elliptic function filter with only a pair of attenuation poles (i.e., Transmission Zeros) at finite frequencies shows much improved skirt characteristic selectively. The proposed filter has the bandwidth of 5 % and the center frequency of 9.2 GHz.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133085128","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
A direct down - Converted band pass delta sigma receiver with frequency translating and RF DAC 带频率转换和射频DAC的直接下转换带通δ σ接收机
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027170
S. Kang, D. Kang, H. Song, H. Choi, S. Ryu, C. Park
{"title":"A direct down - Converted band pass delta sigma receiver with frequency translating and RF DAC","authors":"S. Kang, D. Kang, H. Song, H. Choi, S. Ryu, C. Park","doi":"10.1109/IMWS2.2011.6027170","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027170","url":null,"abstract":"A direct down converted BP delta sigma receiver with frequency translating and a RF sin FIR DAC is proposed. it can directly process RF signal as defined in the digital domain while relieving sub block requirements and increasing SNR.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129847095","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 12mW 5GHz wideband low-noise amplifier in 0.13µm CMOS using noise cancellation 采用噪声消除技术的0.13µm CMOS 12mW 5GHz宽带低噪声放大器
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027203
H. Kim, Jiyoung Tak, Jinju Lee, Jihye Shin, Jung-Won Han, Sung Min Park
{"title":"A 12mW 5GHz wideband low-noise amplifier in 0.13µm CMOS using noise cancellation","authors":"H. Kim, Jiyoung Tak, Jinju Lee, Jihye Shin, Jung-Won Han, Sung Min Park","doi":"10.1109/IMWS2.2011.6027203","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027203","url":null,"abstract":"This paper presents a wideband low-noise amplifier (LNA) exploiting noise cancellation technique, which operates at 800MHz–5.7GHz for low-power multi-standard applications. Implemented in a 0.13µm CMOS technology, the measured results of the LNA demonstrate the maximum gain of 11.7dB in the frequency range of 811MHz∼5.7GHz, the noise figure of 2.58∼5.11dB within the bandwidth, the input-referred third order intercept point (IIP3) of 1.6dBm at 2.4GHz, and the power consumption of 12mW from a single 1.2V supply. The chip occupies the total area of 0.7×0.9mm2.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133062112","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
MIMO/multi-channel RF transceiver for Cognitive Radio system 用于认知无线电系统的MIMO/多通道射频收发器
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027195
Jinhyung Oh, Sang-Wu Kim, B. Jeong
{"title":"MIMO/multi-channel RF transceiver for Cognitive Radio system","authors":"Jinhyung Oh, Sang-Wu Kim, B. Jeong","doi":"10.1109/IMWS2.2011.6027195","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027195","url":null,"abstract":"Cognitive Radio (CR) technology is one of the favorable technology to efficiently deploy the underutilized frequency spectrum. Currently, the Federal Communications Commission (FCC) allowed TV white space (TVWS) which should protect the licensed user communication to utilize for data communication. The first actual deployment of communication system operating on TVWS is implemented in our group. However, it operates in SISO and single-channel procedure. So, we will develop a second version test-bed operating various modes such as SIMO, 2×2 MIMO and multi-channel communications. From these diverse operation methods, we expect that data rate is enhanced. In this paper, we will introduce a CR RF transceiver which is equipped in our second version of test-bed based on ECMA-392 international standard.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133605501","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
A DDS and PLL-based X-band FMCW radar system 基于DDS和锁相环的x波段FMCW雷达系统
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-08-25 DOI: 10.1109/IMWS2.2011.6027213
Yun-Taek Im, Jee-Hoon Lee, Seong‐Ook Park
{"title":"A DDS and PLL-based X-band FMCW radar system","authors":"Yun-Taek Im, Jee-Hoon Lee, Seong‐Ook Park","doi":"10.1109/IMWS2.2011.6027213","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027213","url":null,"abstract":"A DDS and PLL-based FMCW range meter system is described. The DDS is used as a reference clock of a linearly frequency modulated signal source, and the PLL is controlled by it. The bandwidth and the sweep time of the FMCW radar system are 150 MHz, and 270 us. Zero-padding and spectral centroid processing techniques are used to measure a target range, and the range resolution is less than 0.25 m.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129714438","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: 16
Study on the feedback error quantification in adaptive modulation over fading channels 衰落信道中自适应调制反馈误差量化研究
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-08-01 DOI: 10.1109/IMWS2.2011.6027198
Seyeong Choi, Joonhyuk Kang
{"title":"Study on the feedback error quantification in adaptive modulation over fading channels","authors":"Seyeong Choi, Joonhyuk Kang","doi":"10.1109/IMWS2.2011.6027198","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027198","url":null,"abstract":"In this work, we consider imperfectness of feedback channels in the adaptive transmission scheme which was previously studied with an assumption of error-free feedback channels. New methods of mapping the modulation index into the feedback channel symbols and quantifying feedback error over fading channels are proposed. The presented method and results are expected to offer valuable tools for the system designer to efficiently implement adaptive diversity schemes to compensate for the performance degradation due to feedback error.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"27 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114104074","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 X-band FMCW short range radar x波段FMCW近程雷达设计
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-08-01 DOI: 10.1109/IMWS2.2011.6027214
Dong-Hun Shin, Seong‐Ook Park
{"title":"Design of X-band FMCW short range radar","authors":"Dong-Hun Shin, Seong‐Ook Park","doi":"10.1109/IMWS2.2011.6027214","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027214","url":null,"abstract":"This paper researches on a X-band FMCW short range radar. It has 160us sweep time and 600MHz bandwidth. The gain variable amplifier is used to remove the internal noise and compensate the path-loss. Range resolution is 25cm and measurement data has less than 17cm error.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"239 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132301744","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
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