A SATELLITE RECEIVING FRONT-END FOR
... technology, the LNA is built using air lines that have much higher characteristic impedances and even lumped components. Suitable line impedances enable very low-loss impedance transformations resulting in a very low overall noise figure of less than 0.4dB when using a CFY65 HEMT in the first stage. ...
... technology, the LNA is built using air lines that have much higher characteristic impedances and even lumped components. Suitable line impedances enable very low-loss impedance transformations resulting in a very low overall noise figure of less than 0.4dB when using a CFY65 HEMT in the first stage. ...
Four-Coil Wireless Power Transfer Using Resonant Inductive Coupling
... Table 5.1: Fixed self- and mutual inductances in design-validation experiments .............62 Table5.2:Variable mutual inductances vs. source-to-load spacing D23 …………….……..63 Table 5.3:Reflected resistance and reactance from coil 4 into coil 3,and inductance and resistance measured at the terminals ...
... Table 5.1: Fixed self- and mutual inductances in design-validation experiments .............62 Table5.2:Variable mutual inductances vs. source-to-load spacing D23 …………….……..63 Table 5.3:Reflected resistance and reactance from coil 4 into coil 3,and inductance and resistance measured at the terminals ...
Heat Tracing for the Refrigeration Industry
... of applications from frost protection to high temperature industrial installations. This leaflet outlines applications in the freezer industry where THERMON trace heating cables can be utilised. These cables together with a complete range of components have been specifically designed for low tempera ...
... of applications from frost protection to high temperature industrial installations. This leaflet outlines applications in the freezer industry where THERMON trace heating cables can be utilised. These cables together with a complete range of components have been specifically designed for low tempera ...
2 The ignition system on the MZ202
... not considered to be a problem. The level of radio interference is subjective, and different people will have different views of what good, bad or terrible radio interference means. When trying to reduce the level of interference some form of quantification (measurement) of the level of interference ...
... not considered to be a problem. The level of radio interference is subjective, and different people will have different views of what good, bad or terrible radio interference means. When trying to reduce the level of interference some form of quantification (measurement) of the level of interference ...
TD class note 4
... A longer span means a smaller number of towers but the towers are taller and more costly. The higher the operating voltage ,the greater shoud be the span to reduce the high cost of insulators. The insulators constitute the weaker part of transmission line and reduction in the number of towers per Km ...
... A longer span means a smaller number of towers but the towers are taller and more costly. The higher the operating voltage ,the greater shoud be the span to reduce the high cost of insulators. The insulators constitute the weaker part of transmission line and reduction in the number of towers per Km ...
V.A PJM Design and Application of Overhead Transmission Lines
... electric transmission facilities. 1.1.1. Transmission lines, for the purpose of this document, are those with an operating voltage of 69kV or greater. 1.1.2. The term “TO” in this document refers to the Transmission Owner, the party that will own and be responsible for the maintenance of the subject ...
... electric transmission facilities. 1.1.1. Transmission lines, for the purpose of this document, are those with an operating voltage of 69kV or greater. 1.1.2. The term “TO” in this document refers to the Transmission Owner, the party that will own and be responsible for the maintenance of the subject ...
Principles of Electronic Communication Systems
... If a parallel-wire transmission line is left open, the electric and magnetic fields escape from the end of the line and radiate into space. This radiation is inefficient and unsuitable for reliable transmission or reception. The radiation from a transmission line can be greatly improved by bending t ...
... If a parallel-wire transmission line is left open, the electric and magnetic fields escape from the end of the line and radiate into space. This radiation is inefficient and unsuitable for reliable transmission or reception. The radiation from a transmission line can be greatly improved by bending t ...
2014 Influence of Discrete Inductance Curves on The Simulation of a Round Rotor Generator Using Coupled Circuit Method
... of using the analytical expressions in the timestepping simulation is that the simulation time revealed to much higher than the interpolation method. To benefit from the anti-aliasing effect without having the burden of the analytical expressions in the time-stepping simulation, it is possible to re ...
... of using the analytical expressions in the timestepping simulation is that the simulation time revealed to much higher than the interpolation method. To benefit from the anti-aliasing effect without having the burden of the analytical expressions in the time-stepping simulation, it is possible to re ...
Tutorial overview of inductively coupled RFID Systems
... RF interface, antenna tuning capacitor, RF-to-DC rectifier system, digital control and EEPROM memory, and data modulation circuits. The smart label tag is passive, i.e. it does not require any internal power supply or battery energy source. The necessary power required to energise and activate the t ...
... RF interface, antenna tuning capacitor, RF-to-DC rectifier system, digital control and EEPROM memory, and data modulation circuits. The smart label tag is passive, i.e. it does not require any internal power supply or battery energy source. The necessary power required to energise and activate the t ...
EP² Ignition Manual - Power Arc Ignitions
... more voltage required to fire the plug, and the narrower the plug gap should be. RPM: The higher the rpm's the less time the coil has to charge to break over voltage or complete saturation. A narrower spark plug gap will help high rpm stability. Multi-Spark: To maintain a good secondary spark within ...
... more voltage required to fire the plug, and the narrower the plug gap should be. RPM: The higher the rpm's the less time the coil has to charge to break over voltage or complete saturation. A narrower spark plug gap will help high rpm stability. Multi-Spark: To maintain a good secondary spark within ...
Choosing the Right Cable
... ground potential than is required by the NEC. Belden’s research has shown that the common mode noise released is inversely proportional to the amount of copper at ground potential, and the amount of surface area in the ground potential copper. Cable designs vary from those which have 1 or less full ...
... ground potential than is required by the NEC. Belden’s research has shown that the common mode noise released is inversely proportional to the amount of copper at ground potential, and the amount of surface area in the ground potential copper. Cable designs vary from those which have 1 or less full ...
16120MST.94
... Where 2 or more branch circuits or control wires of same color pass through or terminate in same accessible location (panelboard, junction box, outlet box, gutter, pullbox, etc.), mark each appropriately to distinguish from others of same color. If wires are branch circuit conductors, mark with the ...
... Where 2 or more branch circuits or control wires of same color pass through or terminate in same accessible location (panelboard, junction box, outlet box, gutter, pullbox, etc.), mark each appropriately to distinguish from others of same color. If wires are branch circuit conductors, mark with the ...
Amplifier Built-in Type Laser sensor EX-L200 Series
... ●● Take care that the sensor is not directly exposed to fluorescent lamp from a rapid-starter lamp, a high frequency lighting device or sunlight etc., as it may affect the sensing performance. ●● In case of mounting the fixed-focus reflective type, the sensing may be influenced from reflective objec ...
... ●● Take care that the sensor is not directly exposed to fluorescent lamp from a rapid-starter lamp, a high frequency lighting device or sunlight etc., as it may affect the sensing performance. ●● In case of mounting the fixed-focus reflective type, the sensing may be influenced from reflective objec ...
Trans. Lines
... The cable dielectric may break down as a result of high-value standing waves of voltage (voltage nodes). The existence of reflections (and rereflections) increases the power loss in the form of I2R heating, especially at the high-value standing waves of current (current nodes) Noise problems a ...
... The cable dielectric may break down as a result of high-value standing waves of voltage (voltage nodes). The existence of reflections (and rereflections) increases the power loss in the form of I2R heating, especially at the high-value standing waves of current (current nodes) Noise problems a ...
Wire Antennas For Limited Space
... instead spills to the area immediately surrounding the conductors • Leakage flux causes very little radiation, but it will cause heating in a lossy medium! – Like a ferrite core ...
... instead spills to the area immediately surrounding the conductors • Leakage flux causes very little radiation, but it will cause heating in a lossy medium! – Like a ferrite core ...
Wireless Communications and Networks
... For power to get to an antenna it must be connected to a transmission line. To prevent standing waves from occurring within the line and for maximum power transfer, the resistance of the transmission line must be equal to the resistance of the antenna. The antenna resistance is termed radiation resi ...
... For power to get to an antenna it must be connected to a transmission line. To prevent standing waves from occurring within the line and for maximum power transfer, the resistance of the transmission line must be equal to the resistance of the antenna. The antenna resistance is termed radiation resi ...
Telemetry Manual
... A special low-noise, high-voltage power supply powers the telemetry system and includes an interlock system that provides operational safety for the ship’s personnel. The power supply is usually connected to the tow cable via a deck cable, which is in turn connected to a slip ring mounted on the win ...
... A special low-noise, high-voltage power supply powers the telemetry system and includes an interlock system that provides operational safety for the ship’s personnel. The power supply is usually connected to the tow cable via a deck cable, which is in turn connected to a slip ring mounted on the win ...
TUNING TAPS TRANSDUCERS Begin by measuring the voltage
... X3 = Xe – Xs. X3 may be capacitive or inductive, depending upon whether we need to increase or decrease Xs to reach Xe. Add this series reactance to the transducer and measure the series impedance. (Note that the phase will not, in general, be zero.) Rs = (V/I) cos(pi*phase/180) Xs = (V/I) sin(pi*ph ...
... X3 = Xe – Xs. X3 may be capacitive or inductive, depending upon whether we need to increase or decrease Xs to reach Xe. Add this series reactance to the transducer and measure the series impedance. (Note that the phase will not, in general, be zero.) Rs = (V/I) cos(pi*phase/180) Xs = (V/I) sin(pi*ph ...
Antenna Basic Concepts
... effect. The speed of propagation in coaxial cable is slower than in air, so the wavelength in the cable is shorter. The velocity of propagation of electromagnetic waves in coax is usually given as a percentage of free space velocity, and is different for different types of coax. ...
... effect. The speed of propagation in coaxial cable is slower than in air, so the wavelength in the cable is shorter. The velocity of propagation of electromagnetic waves in coax is usually given as a percentage of free space velocity, and is different for different types of coax. ...
planning - The Physics Cafe
... not move the bulb while it is on, but if necessary move it by the base only. ...
... not move the bulb while it is on, but if necessary move it by the base only. ...
SCHRACK
... 3S Relay set: RT 1-pole CO contacts (1 form C), 16 A, red LED 4S Relay set: RT 2-pole CO contacts (2 form C), 8 A, red LED ...
... 3S Relay set: RT 1-pole CO contacts (1 form C), 16 A, red LED 4S Relay set: RT 2-pole CO contacts (2 form C), 8 A, red LED ...
Electromagnetic Induction - Goodheart
... A number of inductors are copper windings with air cores. Other materials are used inside the coil to reduce their size, make them more efficient, and cut their overall cost. Some of the newer inductors are built with powder ...
... A number of inductors are copper windings with air cores. Other materials are used inside the coil to reduce their size, make them more efficient, and cut their overall cost. Some of the newer inductors are built with powder ...
Loading coil
A loading coil or load coil is an inductor that is inserted into an electronic circuit to increase its inductance. A loading coil is not a transformer to provide coupling to another other circuit. The term originated in the 19th century for inductors used to prevent signal distortion in long-distance telegraph transmission cables. The term is also used for inductors in radio antennas, or between the antenna and its feedline, to make an electrically short antenna resonant at its operating frequency.Loading coils are historically also known as Pupin coils after Mihajlo Pupin, especially when used for the Heaviside condition and the process of inserting them is sometimes called pupinization.The concept of loading coils was discovered by Oliver Heaviside in studying the problem of slow signalling speed of the first transatlantic telegraph cable in the 1860s. He concluded additional inductance was required to prevent amplitude and time delay distortion of the transmitted signal. The mathematical condition for distortion-free transmission is known as the Heaviside condition. Previous telegraph lines were overland or shorter and hence had less delay, and the need for extra inductance was not as great. Submarine communications cables are particularly subject to the problem, but early 20th century installations using balanced pairs were often continuously loaded with iron wire or tape rather than discretely with loading coils, which avoided the sealing problem.