matching impedance

matching impedance

[′mach·iŋ im¦pēd·əns]
(electricity)
Impedance value that must be connected to the terminals of a signal-voltage source for proper matching.
References in periodicals archive ?
2], the probe-fed input matching impedance is 50 [ohm] to the slot patch antenna.
The pro-feed T-shape microstrip transmitted current distribution could be adjusted by the angle [theta] at the connection point which is pin coupled to the tuner for matching impedance.
o]/7 has been required to achieve good matching impedance and antenna's gain.
36 GHz with good matching impedance (S11 < -20dB) from 1.
For cellular infrastructure and WiMAX base station OEMs dependant on maximizing power and efficiency, RFMD's GaN transistors provide higher at-package matching impedance, higher power density and wider bandwidth performance when compared with silicon LDMOS devices," said Bill Pratt, Co-founder, Chief Technical Officer and Corporate Vice President for RFMD.
frequency is not the case for a matching impedance that varies over the device's bias point.
The result of the system simulation using matching impedance network measured data is shown in Figure 11.
As seen in the table, the measured results have good agreement with the extracted single-band matching impedances.
Matching impedances ensures maximum signal integrity by minimizing reflections.
This technique is not absolutely accurate because the linear gain S-parameters, detailed on the Web site, and the saturated gain S-parameters, obtained in the form of desired matching impedances, are different.
The important issue is that any value that is close to matching impedances will result in reduced reflections.
Chapter 4 discusses various methods of matching impedances.