impedance matching


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impedance matching

n.
The use of electric circuits, transmission lines, and other devices to make the impedance of a load equal to the internal impedance of the source of power, thereby making possible the most efficient transfer of power.
References in periodicals archive ?
Among his topics are phased array antennas, wideband impedance matching of a V-dipole antenna, lumped-element impedance matched antennas, a circular waveguide antenna for a portable computer-based radar, a three-dimensional printed non-planar circular patch array antenna, and antenna and electromagnetic field measurements.
Efficiencies of 65 to 70 percent are typical and the solution exhibits excellent impedance matching over the frequency bands
Are suitable for power limiting, impedance matching and signal leveling inside RF test systems.
The main use of RF inductor is the impedance matching between the circuit.
Efficiently transmitting the output signal from an amplifier to the next stage requires impedance matching on the lines that connect the amplifiers, which, in turn, requires that the lines be of a uniform length.
Thus, the novelty of this work is the design of a dual-band UHF-RFID tag by means of an impedance matching network.
In [10,11], different cavities and apertures were studied for stable unidirectional radiation and wide impedance matching.
Stacked structures are usually used to broaden the axial-ratio (AR) bandwidth and horizontally strip feed technique in [5,6] is proposed to achieve good impedance matching.
1 shows few conventional LNA for input impedance matching.
The first products target antenna tuners and impedance matching devices in mobile devices and are expected to be available for sampling in early 2012.
It features 8 channels of ESD protection that meet + -15kV contact discharge, and + -20kV air discharge per the IEC61000-4-2 standard, while meeting 100 Ohm differential impedance matching requirements of the HDMI(TM) 1.
The contributors, who are a mix of academic and industry researchers, propose novel circuit solutions for multiple-input multiple-output radio transceivers, an algorithmic design methodology for simultaneous noise and input impedance matching in low-noise amplifiers, and a digital RF processor.