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Transistor Modeling and Simulation
Published in Abdullah Eroglu, Introduction to RF Power Amplifier Design and Simulation, 2018
Network parameters are analyzed and studied using two-port networks in Ref. [1]. The two-port network shown in Figure 3.1 is described by a set of four independent parameters, which can be related to voltage and current at any port of the network. As a result, the two-port network can be treated as a black box modeled by the relationships between the four variables. There exist six different ways to describe the relationships between these variables, depending on which two of the four variables are given, whereas the other two can always be derived. All voltages and currents are complex variables and represented by phasors containing both magnitude and phase. Two-port networks are characterized by using two-port network parameters such as Z-impedance, Y-admittance, h-hybrid, and ABCD. High-frequency networks are characterized by S-parameters. They are usually expressed in matrix notation, and they establish relations between the following parameters: input voltage V1, output voltage V2, input current I1, and output current I2.
T and Π and Two-Port Networks
Published in Richard C. Dorf, Ronald J. Tallarida, Pocket Book of Electrical Engineering Formulas, 2018
Richard C. Dorf, Ronald J. Tallarida
A two-port network is a circuit with two pairs of terminals (ports) at which excitation can be applied or response measured. (One terminal may be common to input and output). The general two-port is shown in Figure 17.2. The impedance parameters of a two-port network are expressed as V1=Z11I1+Z12I2V2=Z21I1+Z22I2
Network Parameters in RF Circuit Design
Published in Abdullah Eroglu, RF Circuit Design Techniques for MF-UHF Applications, 2017
The analysis of network parameters can be explained using two-port networks. The two-port network shown in Figure 1.1 is described by a set of four independent parameters, which can be related to voltage and current at any port of the network. As a result, two-port network can be treated as a black box modeled by the relationships between the four variables. There exist six different ways to describe the relationships between these variables depending on which two of the four variables are given, while the other two can always be derived. All voltages and currents are complex variables and are represented by phasors containing both magnitude and phase. Two-port networks are characterized using two-port network parameters such as Z-impedance, Y-admittance, h-hybrid, and ABCD. They are usually expressed in matrix notation and they establish relations between the following parameters: input voltage V1, output voltage V2, input current I1 and output current I2. High-frequency networks are characterized by S parameters.
Characterization of an Inter-digitated Sensor for Non-invasive Blood-glucose Sensing
Published in IETE Journal of Research, 2023
At microwave frequencies, the two-port network is characterized in terms of S-parameters: and . and are also known as input and output-reflection-coefficient, respectively, whereas and are reverse and forward-transmission-coefficient, respectively.