Introduction Simulation Methodology.
... Once the load line has been designed, it is time for large signal simulation. The input matching section is designed in a similar manner as the output section with the exception that since the return loss can be measured during simulation, it is much easier to either manually tune or automatically o ...
... Once the load line has been designed, it is time for large signal simulation. The input matching section is designed in a similar manner as the output section with the exception that since the return loss can be measured during simulation, it is much easier to either manually tune or automatically o ...
Chap_15_B
... Whenever a transmission line is not terminated with a matched load (ZL = Z0, portion of the incident energy will be reflected back. This usually causes two problems: 1) energy is wasted; 2) the reflected energy could upset/damage the transmitter. ...
... Whenever a transmission line is not terminated with a matched load (ZL = Z0, portion of the incident energy will be reflected back. This usually causes two problems: 1) energy is wasted; 2) the reflected energy could upset/damage the transmitter. ...
FINAL00sp
... c) What is the gain of this circuit from Vi to the drain of M2, assuming an ideal current source load? d) What is the low frequency impedance seen at the source of M2? For the following parts of the problem, assume that you want as large an output swing as possible, so you would like to bias the dra ...
... c) What is the gain of this circuit from Vi to the drain of M2, assuming an ideal current source load? d) What is the low frequency impedance seen at the source of M2? For the following parts of the problem, assume that you want as large an output swing as possible, so you would like to bias the dra ...
Reflection Coefficient Applications in Test Measurements
... has the same polarity. Thus VR and VI are equal in magnitude and of the same polarity so the resultant Rho is 1. If the cable impedance is lower than the input impedance the reflected signal is negative. In the case of a short circuit the impedance is infinitely low and the reflected signal equals t ...
... has the same polarity. Thus VR and VI are equal in magnitude and of the same polarity so the resultant Rho is 1. If the cable impedance is lower than the input impedance the reflected signal is negative. In the case of a short circuit the impedance is infinitely low and the reflected signal equals t ...
Experiment 1
... electrons caused by the material (resistance) AND other the properties of the component involved (reactance). Resistors have no reactance. So the impedance of a resistor is equal to its resistance only. Reactance varies with the frequency of the input. Resistance remains the same at all frequencies. ...
... electrons caused by the material (resistance) AND other the properties of the component involved (reactance). Resistors have no reactance. So the impedance of a resistor is equal to its resistance only. Reactance varies with the frequency of the input. Resistance remains the same at all frequencies. ...
Effects of Stray Capacitance to Ground in Three
... The first term in the expression (1), is the voltage loading effect due to the fact that the input impedance of the voltage amplifier is not ideal (infinite). This effect depends on Cg, which is included in Z12, equation (2). This effect can be neglected as it is relevant at high frequency, above, s ...
... The first term in the expression (1), is the voltage loading effect due to the fact that the input impedance of the voltage amplifier is not ideal (infinite). This effect depends on Cg, which is included in Z12, equation (2). This effect can be neglected as it is relevant at high frequency, above, s ...
TUNING TAPS TRANSDUCERS Begin by measuring the voltage
... To cancel the parallel reactance, Xp, add an equal reactance (Z2) of opposite sign in parallel with the network. If the series element added above was a coil, the parallel element will probably be a capacitor. The final impedance should be 50 ±5 Ω with a phase shift of <±10°. Note that Z1 is not use ...
... To cancel the parallel reactance, Xp, add an equal reactance (Z2) of opposite sign in parallel with the network. If the series element added above was a coil, the parallel element will probably be a capacitor. The final impedance should be 50 ±5 Ω with a phase shift of <±10°. Note that Z1 is not use ...
Nominal impedance
Nominal impedance in electrical engineering and audio engineering refers to the approximate designed impedance of an electrical circuit or device. The term is applied in a number of different fields, most often being encountered in respect of:The nominal value of the characteristic impedance of a cable or other form of transmission line.The nominal value of the input, output or image impedance of a port of a network, especially a network intended for use with a transmission line, such as filters, equalisers and amplifiers.The nominal value of the input impedance of a radio frequency antennaThe actual impedance may vary quite considerably from the nominal figure with changes in frequency. In the case of cables and other transmission lines, there is also variation along the length of the cable, if it is not properly terminated. It is usual practice to speak of nominal impedance as if it were a constant resistance, that is, it is invariant with frequency and has a zero reactive component, despite this often being far from the case. Depending on the field of application, nominal impedance is implicitly referring to a specific point on the frequency response of the circuit under consideration. This may be at low-frequency, mid-band or some other point and specific applications are discussed in the sections below.In most applications, there are a number of values of nominal impedance that are recognised as being standard. The nominal impedance of a component or circuit is often assigned one of these standard values, regardless of whether the measured impedance exactly corresponds to it. The item is assigned the nearest standard value.