Theory z, however, advocates a combination of all best attributes of theory y and modern japanese management principles, which place a large amount of freedom and trust with workers, and assumes that workers have a strong loyalty and interest in teamworking and the. The z parameters are also called opencircuit impedance parameters since they are obtained as a ratio of voltage and current and the parameters are obtained by opencircuiting port 2 i 2 0 or port1 i 1 0. If the linear network only contains passive elements, it is reciprocal. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
Y, h, and abcd parameters as well as between s and t parameters. William ouchi developed theory z after making a comparative study of japanese and american management practices. I am trying to convert sparameters obtained from cst simulator into yparameters using the formulas as shown in the picture shared. Is there an equivalent matrix for transmission line.
Follow these steps, while converting one set of two port network parameters into the other set of two port network parameters. Determine the z and y parameters for the circuit in fig. Two terminals constitute a port if the currents applied to them satisfy the essential requirement known as the port condition. Values i used for s11, s12, s21, s22 are as shown in picture. Theory z suggests that large complex organisations are human systems and their effectiveness depends on the quality of humanism used. Find the z and y parameters in resistive network duration. Z 22 is the output impedance when input is opencircuited. First let us apply current source of i 1 at input port keeping the output port short circuited as shown below. Network theory lab ee223f lab manual iii sem ece page 7 experiment no. Ouchi was born and educated in america, but was of japanese descent.
A two port network can be characterised by by four external variables. These parameters are used to describe the electrical behavior of linear electrical networks. Z 21 is the forward transfer impedance when output is opencircuit. Ieee transactions on microwave theory and techniques 422. Conversion between two port parameters gate study material in pdf in the previous article we have seen about two port parameters for standard networks. Long sha ft, rod, beam, column, sp otwelding, bol 23d oth er x y z all dimension s are c om mas s point ele ment, c on. The construction has a natural interpretation in terms of compacti. Mar 06, 2019 h parameters are useful in describing the inputoutput characteristics of circuits where it is hard to measure z or y parameters such as a transistor.
Therefore most people must be motivated by forcedbribed with the threat of punishment or a reward to produce effort and work towards organizational objectives. Network theory lab ee223f lab manual iii sem ece page 8 2 when ip is open circuited i. It is better to work with z parameters and then convert to y parameters. Here, input and output voltages are expressed in terms of input and output currents. Admittance parameters or yparameters are properties used in many areas of electrical. Multiport conversions between s, z, y, h, abcd, and t parameters. Gabriel abend northwestern university theory is one of the most important words in the lexicon of contemporary sociology. Conversion from zparameters to yparameters is much simpler, as the yparameter matrix is just the inverse of the. The yparameters are also called shortcircuit admittance parameters. Application of theory x and y in classroom management by. They are also used to describe the smallsignal response of nonlinear networks.
To calculate and verify z parameters of twoport network. Get an answer for compare the theory x, theory y, and theory z assumptions of human relations. What are the applications of z and y parameters in two. So, in this case z parameters are the desired parameters and y parameters are the given parameters. Abcd parameters of transmission line electrical concepts.
The definiti ons of the waves a1 and b 1 are inc 01 1 00 0 refl 1 1 0 0 incident voltage wave port1 2 reflected. Job security the japanese theory z approach believes that people are a far too valuable resource to be lost when the economy has a. Owing to the duality between the z and y parameter characterizations, we shall not give a detailed discussion of z parameters. Theory xy douglas mcgregor and theory z william ouichi. Multiport conversions between s, z, y, h, abcd, and t. In this article we will see the conversion from one twoport parameter to the other twoport parameters.
Z 21 and z 12 are also referred as transfer impedance. Z and y parameters signal processing electrical engineering. The relationship between mcgregors xy theory management. Motivation, theory x and y, classroom, management manager and organisation introduction douglas mcgregor, an american social psychologist, proposed his famous theory x and y in his book the human side of enterprise in 1960. The constants y 11, y 12, y 21, and y 22 are called the admittance or y parameters of the twoport network.
A pair of terminals at which a signal voltage or current may enter. Mcgregors xy theory is a natural rule for managing people. For unsymmetrical network we have the linear parameters are. Mcgregors ideas suggest that there are two fundamental approaches to managing people. When z12z21, the twoport circuit is called a reciprocal circuit. The remaining twodimensions, the area input data and assigned tothe respectiveelements practical exa mple.
Z 0 is in general an arbitrary reference impedance, but usually the characteristic impedance of a line e. Theory x management style generally get poor results compare with managers use theory y, which produces better performance and results, and allows people to grow and develop. There exist six different ways to describe the relationships between these va. A twoport network a kind of fourterminal network or quadripole is an electrical network or device with two pairs of terminals to connect to external circuits. Just as douglas macgregors theory x and y were based on management assumptions about people, so too is ouichis theory z approach. Here, we have to represent z parameters in terms of y parameters. In this case we use the letter 0 2f 3 for the irrelevant parameters and the nonzero values 1 for the parameters that are set in the language.
Jul 23, 2017 40 for the network given below, what would be the value of z 22, if the estimated zparameters are z 11 30 and z 12 z 21 10. To calculate and verify y parameters of twoport network. We can determine the values of the parameters of a particular two port network by making shortcircuited output port and input port alternatively as follows. Since admittance is the ratio of circuit current and voltage, therefore this admittance matrix gives the relationship between the input and output current and voltage of the network. Theory z william ouchi during the 1970s, when japanesestyle management was all the rage, william ouchi, took the theory x, theory y concept one step further. Conversions between s, z, y, h, abcd, and t parameters which. Voltage regulation voltage regulation is defined as the change in the magnitude of the voltage between the sending and receiving ends of the transmission line. Z 11 and z 22 are also referred as driving point impedance. When twoport networks are connected a in series, their impedance parameters add.
What are the applications of z and y parameters in two port. But, we use impedance z, admittance y, or reflection. Scribd is the worlds largest social reading and publishing site. The zparameters are also called opencircuit impedance parameters since they are obtained as a ratio of voltage and current and the parameters are obtained by opencircuiting port 2 i 2 0 or port1 i 1 0. Fleishman uses fleishmans thirdorder polynomial transformation and polynomial uses headricks fifthorder transformation. The efficiency of transmission lines efficiency of the transmission lines is defined as the ratio of the input power to the output. The definition and the method of measuring each of the four z parameters are given in fig. Now, let us discuss about some of the two port parameter conversions. Admittance parameters or y parameters electrical4u.
Here all four parameters,, and represent impedance. Hence, the z parameters are also called as opencircuit impedance parameters. Admittance parameters or y parameters the elements of an admittance matrix or y matrix are properties used in many areas of electrical engineering, such as power, electronics, and telecommunications. For better understanding, let us take the circuit below, let us put a voltage source v 1 at input, now, let us connect one voltage source v 2. They are impedance parameters z, admittance parameters y, transmission. Yet, their ubiquity notwithstanding, it is quite unclear what sociologists mean by the words theory, theoretical, and theorize. In the theory of errorcorrecting codes, see 15, one assigns to a code c. A twoport network is reciprocal if y 12 y 21, z 12 z 21, h 12 h21. Z 12 is the reverse transfer impedance when input is opencircuited. Z parameters problem 1 two port network circuit theory.
However, we often use devices with 2, 3, 4, or even more portsmultiple transmission lines can be attached to them. Admittance parameters or yparameters the elements of an admittance matrix or ymatrix are properties used in many areas of electrical engineering, such as power, electronics, and telecommunications. Here, y 11, y 12, y 21 and y 22 are admittance parameter. Conversions between s, z, y, h, abcd, and t parameters. Theory xy douglas mcgregor and theory z william ouichi theory x an authoritarian style of management the average worker dislikes work. Theory of noise measurement application note 5c042 page 1 of 3 introduction noise is a natural phenomenon that affects most. Now, let us discuss about these two port network parameters one by one. Conversions between s, z, y, h, abcd, and t parameters which are. Write the equations of a two port network in terms of desired parameters. H parameters encapsulate all the important linear characteristics of the circuit, so they are very useful for simulation purposes.
Short circuit admittance parameters y parameters these parameters are obtained by expressing currents at two ports in terms of voltages at two ports. We know that, the following matrix equation of two port network regarding z parameters as. Y parameters are known asshort circuit admittance parameters because in both the cases, oneport is short i. Jan 06, 2019 here, y 11, y 12, y 21 and y 22 are admittance parameter. Theory and applications, exercise 19 if the current it through a resistor r decays exponentially with a time constant t, what is the ratio of the power dissipated in the resistor at time t t to its value at t 0.
Impedance parameters or zparameters are properties used in electrical engineering. A twoport network can be described by zparameters as. C4 appendixc two portnetworkparameters owing to the duality between the z and yparameter characterizations, we shall not give a detailed discussion of z parameters. The z parameters of the two port network has been calculated and verified. Power supply, bread board, five resistances, connecting leads. Now, we will calculate the value of sending end voltage and current in terms of receiving end voltage and current. Z parameters are also known as opencircuit impedance parameters as they are calculated under open circuit conditions.
Conversion between two port parameters gate study material. Pdf conversions between s, z, y, h, abcd, and t parameters. Conversion from yparameters to zparameters is much simpler, as the zparameter matrix is just the inverse of. Evidence for ftheory cumrun vafa lyman laboratory of physics, harvard university cambridge, ma 028, usa we construct compact examples of dmanifolds for type iib strings. When z11z22, the twoport circuit is said to be symmetrical.
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