نتایج جستجو برای: base band processor

تعداد نتایج: 430317  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده مهندسی برق و الکترونیک 1392

حلقه های قفل شده فاز تمام دیجیتال یکی از مباحث مهم در دنیای امروز الکترونیک هستند. حلقه قفل فازهای (pll ) که به وسیله روشهای آنالوگ طراحی می شدند نسبت به تغییرات دما و ولتاژ و پروسس حساس بودند. این امر موجب سختی طراحی و نیازمندی به طراحی مجدد در تکنولوژی های جدید می شود. این در حالی است که با استفاده از حلقه های قفل فاز تمام دیجیتال این مشکلات برطرف میشوند. حلقه های قفل فاز تمام دیجیتال (adpll...

Journal: :Optics express 2009
Feng Xiao Kamal Alameh Tongtak Lee

A new tunable fiber ring laser structure employing an Opto-VLSI processor and an erbium-doped fiber amplifier (EDFA) is reported. The Opto-VLSI processor is able to dynamically select and couple a waveband from the gain spectrum of the EDFA into a fiber ring, leading to a narrow-linewidth high-quality tunable laser output. Experimental results demonstrate a tunable fiber laser of linewidth 0.05...

2017
Hideyuki ToMosAKA Kentaro ANzAi

Short Cbmmunieation Proposed Two-molecule Intercalation between Neighboring Base Pairs of DNA Hideyuki ToMosAKA,t Kentaro ANzAi,* and Saburo OMATA Department oj'Biosystem Science, Graduate School ofScience and Tlechnology, fViigata UhiversitJ,, igarashi, Niigata, Niigata 950-21, Jopan 'Department ofC7iemistry, Rietilty ofSeienee, Seience Uhiversity of 7bkyo, Kdgurazaka, Shinjuku-ku, 7bkyo i62, ...

Journal: :IEEE Trans. Computers 1995
Christine Fricker

Memory interleaving considerably increases memory bandwidth in vector processor systems. The concurrent operation of the processors can produce memory bank connicts and hence alter the memory band-width. Total or steady state performance for vector operations in a memory system is studied. Many methods of resolving memory bank connicts are proposed and compared. Analytical results on the result...

1999
Tomohiro Hashimoto Yoong-Kee Choe Haruyuki Nakano Kimihiko Hirao

The multireference Møller-Plesset perturbation (MRMP) theory with complete active space self-consistent field (CASSCF) reference functions is applied to the study of the Q and B bands of free-base, magnesium, and zinc porphyrins and their derivatives. The Q band of free-base porphyrin is so weak because the transition is pseudoparity-forbidden because of the alternancy symmetry. The Q band in t...

2001
Youn Sub Noh Chul Soon Park

A personal communications service/wide-band code division multiple access (PCS/W-CDMA) dual-band monolithic microwave integrated circuit (MMIC) power amplifier with a single-chip MMIC and a single-path output matching network is demonstrated by adopting a newly proposed on-chip linearizer. The linearizer is composed of the base–emitter diode of an active bias transistor and a capacitor to provi...

Journal: :The Journal of Korean Institute of Electromagnetic Engineering and Science 2023

In this study, a power amplifier, which is an essential component, was implemented for RF system of 5G FR2 band base station. The design verified using NP15-00 0.15-μm-gate GaN-on-SiC HEMT process (Win Semiconductors, Taiwan) with high density and excellent frequency characteristics use in stations. manufactured amplifier integrated circuit measured the form balanced Lange coupler to improve in...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1393

in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...

Journal: :journal of advances in computer research 0

the ip lookup process is a key bottleneck in routing due to the increase in routing table size, increasing traıc and migration to ipv6 addresses. the ip address lookup involves computation of the longest prefix matching (lpm), which existing solutions such as bsd radix tries, scale poorly when traıc in the router increases or when employed for ipv6 address lookups. in this paper, we describe a ...

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