نتایج جستجو برای: lumped element integrated feed network

تعداد نتایج: 1160657  

2005
Ian W.H. Parry

Gasoline taxes are widely perceived as the most efficient instrument for reducing gasoline consumption because they exploit all behavioral responses for reducing fuel use, including reduced driving and improved fuel economy. At present, however, higher fuel taxes are viewed as a political nonstarter. Pay-as-you-drive (PAYD) auto insurance, which involves replacing existing lump-sum premiums wit...

Journal: :IEEE Trans. VLSI Syst. 1997
S. Wünsche C. Clauss Peter Schwarz Frank Winkler

The paper presents a methodology for simulating the static and dynamic performance of integrated circuits in the presence of electro-thermal interactions on the integrated circuit die. The technique is based on the coupling of a finite element method (FEM) program with a circuit simulator. In difference to other known simulator couplings a time step algorithm is used. Its implementation into si...

Journal: :Micromachines 2015
Florian Thoma Frank Goldschmidtböing Peter Woias

This paper presents a novel dosing concept for drug delivery based on a peristaltic piezo-electrically actuated micro membrane pump. The design of the silicon micropump itself is straight-forward, using two piezoelectrically actuated membrane valves as inlet and outlet, and a pump chamber with a piezoelectrically actuated pump membrane in-between. To achieve a precise dosing, this micropump is ...

2007
Metin Şengül

Synthesis algorithm for mixed lumped and distributed element networks is presented. The algorithm is based on transfer scattering matrix factorization The mixed structure is composed of ladder lumped-elements connected with commensurate transmission lines (Unit elements, UEs). Reflection function expression in twovariable is utilized in the algorithm. First, the type of the element that will be...

2010
Michael Matthew Elsbury Zoya Popović Paul D. Dresselhaus Negar Ehsan Erez Falkenstein Milan Lukić Joseph Mruk

This thesis addresses integrated circuit component, packaging, and microwave design for both AC and DC Josephson voltage standard (JVS) systems. The components developed in this work combine techniques from both the distributed and lumped-element microwave design in the frequency range 0–40 GHz. The National Institute of Standards and Technology (NIST) JVS systems rely on 10 000 to 300 000 micr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

Journal: :Graphical Models 2010
Suriya Natsupakpong Murat Cenk Cavusoglu

Lumped element models, also known as, mass-spring-damper models, are widely used to simulate deformable objects because of their simplicity and computational efficiency. However, the parameters of lumped element models are typically determined in an ad hoc fashion through trial-and-error, as these models are not directly based on continuum mechanics of deformable objects. In this paper, an alte...

1999
Zoya Popović

Antennas integrated with active circuitry are usually referred to as active antenna arrays. The integration can be done at different levels, depending on the goal and application. For example, a low-noise amplifier (LNA) is often integrated directly with the antenna for reduced loss and therefore decreased noise figure. Another example is the integration of power amplifiers with antenna arrays ...

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