lumped element

lumped element

[′ləmpt ′el·ə·mənt]
(electromagnetism)
A section of a transmission line designed so that electric or magnetic energy is concentrated in it at specified frequencies, and inductance or capacitance may therefore be regarded as concentrated in it, rather than distributed over the length of the line.
References in periodicals archive ?
For the implementation of impedance matching for LNAs, we usually adopt two basic approaches, namely lumped element and transmission line.
In [5], a simple lumped element model for the mushroom like EBG structures was proposed.
The equivalent lumped element circuit model is presented and mathematical equations for scattering parameters have been derived.
Designers and layout engineers often try to estimate layout parasitics with approximate lumped element models.
The focus is on solving common filter problems with lumped element and distributed filters, and chapters accomplish this through diagrams, charts, mathematical expressions, and discussions of everything from Ikeno transforms to piezoelectric devices.
Using the above set of equations, the lumped element values for the finite high impedance surface were obtained as CHIS = 3.0793 pF, [l.sub.1] = 0.2351 nH, [l.sub.2] = 0.0684 nH.
They cover physical and mathematical fundamentals, the lumped element modeling method, mathematical model order reduction, modeling entire systems, and software implementations.
Figure 2 shows the models of rectangular waveguides with the capacitive window or the inductive window inside and the equivalent lumped element circuits.
Filter inductances [L.sub.1] and [L.sub.2] can be described with lumped element model shown in Fig.
California-based CMT makes lumped element, cavity, combline and waveguide filters for various applications.
Microwave Filters include bandpass filters and duplexers, lumped element filters, cavity filters, waveguide filters, tubular filters, base station products and resonators.
The discontinuities of the connector-cable area are modeled using sections of the ideal transmission lines; however, lumped element topologies can be selected as well.