2008 IEEE MTT-S International Microwave Symposium Digest最新文献_第4页

A tunable concurrent 6-to-18GHz phased-array system in CMOS CMOS中一种可调谐并发6- 18ghz相控阵系统

2008 IEEE MTT-S International Microwave Symposium Digest Pub Date : 2008-06-15 DOI: 10.1109/MWSYM.2008.4632925

Hua Wang, Sanggeun Jeon, Yu-jiu Wang, F. Bohn, A. Natarajan, A. Babakhani, A. Hajimiri

引用次数: 6

Modeling of losses in substrate integrated waveguide by Boundary Integral-Resonant Mode Expansion method 基于边界积分-谐振模式展开法的衬底集成波导损耗建模

2008 IEEE MTT-S International Microwave Symposium Digest Pub Date : 2008-06-15 DOI: 10.1109/MWSYM.2008.4633216

M. Bozzi, L. Perregrini, Ke Wu

引用次数: 27

Perfectly calibrated internal ports in EM analysis of planar circuits 平面电路电磁分析中完美校准的内部端口

2008 IEEE MTT-S International Microwave Symposium Digest Pub Date : 2008-06-15 DOI: 10.1109/MWSYM.2008.4633033

J. Rautio

引用次数: 56

A variable supply, (2.3-2.7)GHz linear power amplifier module for IEEE 802.16e and LTE applications using E-mode pHEMT technology 可变电源，(2.3-2.7)GHz线性功率放大器模块，用于IEEE 802.16e和LTE应用，采用E-mode pHEMT技术

2008 IEEE MTT-S International Microwave Symposium Digest Pub Date : 2008-06-15 DOI: 10.1109/MWSYM.2008.4632971

Y. Chow, C. K. Yong, Joan Lee, H.K. Lee, J. Rajendran, S. Khoo, M.L. Soo, C. Chan

引用次数: 1

A reconfigurable MEMS-less CMOS tuner for software defined radio 一种用于软件无线电的可重构MEMS-less CMOS调谐器

2008 IEEE MTT-S International Microwave Symposium Digest Pub Date : 2008-06-15 DOI: 10.1109/MWSYM.2008.4632948

L. Rabieirad, S. Mohammadi

引用次数: 6

Design of a simultaneous multi-band RF sub-sampling receiver 同时多波段射频分采样接收机的设计

2008 IEEE MTT-S International Microwave Symposium Digest Pub Date : 2008-06-15 DOI: 10.1109/MWSYM.2008.4633089

Nastaran Behjou, T. Larsen, Morten Hoegdal

引用次数: 7

Complexity reduced odd-order memory polynomial pre-distorter for 400-watt multi-carrier Doherty amplifier linearization 400瓦多载波Doherty放大器线性化中降低复杂度的奇阶记忆多项式预失真器

2008 IEEE MTT-S International Microwave Symposium Digest Pub Date : 2008-06-15 DOI: 10.1109/MWSYM.2008.4633192

N. Messaoudi, M. Fares, S. Boumaiza, J. Wood

{"title":"Complexity reduced odd-order memory polynomial pre-distorter for 400-watt multi-carrier Doherty amplifier linearization","authors":"N. Messaoudi, M. Fares, S. Boumaiza, J. Wood","doi":"10.1109/MWSYM.2008.4633192","DOIUrl":"https://doi.org/10.1109/MWSYM.2008.4633192","url":null,"abstract":"this paper expounds on the computation complexity reduction of memory polynomial (MP) digital predistorter (DPD) construction and implementation as needed to linearize power amplifiers (PA) when driven with multi-carrier signals. For that, the even-order terms in the MP branches were first removed. Then, the PA memory effects theory was used to further reduce the number of coefficients of the MP-DPD by decreasing the nonlinearity orders in the different branches individually. These two steps allowed for a reduction of the number of coefficients to almost one-third and the conditioning number by three orders of magnitude while maintaining the same linearization capability. This substantially alleviates the requirements on the digital signal processors and the time needed to construct and implement the MP-DPD in real environment. Experimental validation carried out using a 400Watt Doherty Power Amplifier (DPA), driven with 4-Carrier WCDMA signal, showed excellent linearization capability by achieving an ACPR of better than 50dBcwith a power efficiency of better than 42.4%.","PeriodicalId":273767,"journal":{"name":"2008 IEEE MTT-S International Microwave Symposium Digest","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124271666","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: 21

Ultra compact band pass filters implemented through complementary spiral resonators (CSRs) 通过互补螺旋谐振器(CSRs)实现的超紧凑带通滤波器

2008 IEEE MTT-S International Microwave Symposium Digest Pub Date : 2008-06-15 DOI: 10.1109/MWSYM.2008.4633253

M. Gil, J. Bonache, F. Martín

{"title":"Ultra compact band pass filters implemented through complementary spiral resonators (CSRs)","authors":"M. Gil, J. Bonache, F. Martín","doi":"10.1109/MWSYM.2008.4633253","DOIUrl":"https://doi.org/10.1109/MWSYM.2008.4633253","url":null,"abstract":"In this work, it is shown that complementary spiral resonators (CSRs) etched in the ground plane of a microstrip line are useful for the implementation of band pass filters with very small dimensions and wide stop bands. By combining the CSRs with two series capacitive gaps and inductive vias, two transmission zeros arise. By properly allocating such transmission zeros at both sides of the pass band of interest, the out-of band rejection and frequency selectivity of the filters can be controlled. A prototype device example is reported to illustrate the performance and size of these CSR-based filters. This is an order-three Chebyshev band pass filter centered at ƒo=1.1GHz with 10% fractional bandwidth. Measured in-band losses (optimum value) are IL=−4.42dB, in-band return losses are better than 9dB, and stop band rejection is better than 55dB up to 2.57GHz. Filter area is as small as 23.2 mm × 8.9 mm, that is 0.22 λ × 0.08 λ, where λ is the wavelength (at the central filter frequency) of a 50Ω microstrip line in the considered substrate. The key novel and advantageous aspect of the reported filters is their small size, which is related to the small electrical size of CSRs. Another advantage is frequency selectivity, which is due to the presence of a transmission zero at both edges of the pass band. The limitative aspect is their relatively small unloaded quality factor (Qu), this being attributed to the small dimensions of the considered resonators. These CSR-based devices can be of interest in those applications where size and frequency selectivity are the most severe requirements.","PeriodicalId":273767,"journal":{"name":"2008 IEEE MTT-S International Microwave Symposium Digest","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117027929","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

A monolithic, 1000 watt SPDT switch 单片1000瓦SPDT开关

2008 IEEE MTT-S International Microwave Symposium Digest Pub Date : 2008-06-15 DOI: 10.1109/MWSYM.2008.4633297

T. Boles, J. Brogle, A. Rozbicki

引用次数: 6

CRLH leaky-wave real-time spectrum analyzer (RTSA) with unrestricted time-frequency resolution 无限制时频分辨率的CRLH漏波实时频谱分析仪(RTSA)

2008 IEEE MTT-S International Microwave Symposium Digest Pub Date : 2008-06-15 DOI: 10.1109/MWSYM.2008.4632955

S. Gupta, C. Caloz, S. Abielmona

引用次数: 9