How to build the simplest FM transmitter
... A: Every transmitter using the minimum parts like this has to have harmonic signals and "spurious". So you may sometimes not receive the authentic signal. Leave your radio receiver far at least three meters from the transmitter. Don't attach any cable to the antenna terminal. Then turn the trimcap s ...
... A: Every transmitter using the minimum parts like this has to have harmonic signals and "spurious". So you may sometimes not receive the authentic signal. Leave your radio receiver far at least three meters from the transmitter. Don't attach any cable to the antenna terminal. Then turn the trimcap s ...
High speed RFID/NFC at the frequency of 13.56 MHz
... Here A2 describes the area of the second coil, while L1 and L2 describe the inductance of the two coils. The distance between readercoil and transponder-coil also determines the coupling factor. Figure 1 depicts additionally that due the connection between first and second coil a change of the impe ...
... Here A2 describes the area of the second coil, while L1 and L2 describe the inductance of the two coils. The distance between readercoil and transponder-coil also determines the coupling factor. Figure 1 depicts additionally that due the connection between first and second coil a change of the impe ...
Resonant Coupling Analysis for a Two-Coil Wireless
... configuration is preferred. On the other hand, if the source resistance RG is lower than the coil impedance ω0 L, then IT series will have a larger magnitude than IT parallel and using series configuration is more efficient for WPT. Note that the assumption of a high-Q transmitter coil was invoked i ...
... configuration is preferred. On the other hand, if the source resistance RG is lower than the coil impedance ω0 L, then IT series will have a larger magnitude than IT parallel and using series configuration is more efficient for WPT. Note that the assumption of a high-Q transmitter coil was invoked i ...
A Guide to the Design of Laminate PCBs at Microwave
... Wilkinson divider being one of the most common. For broadband quadrature splitters the Lange coupler offers good performance but the required track widths and spacings mean that these are not practical using lamintate PCB processing (they also require cross-overs to link fingers, which add a degree ...
... Wilkinson divider being one of the most common. For broadband quadrature splitters the Lange coupler offers good performance but the required track widths and spacings mean that these are not practical using lamintate PCB processing (they also require cross-overs to link fingers, which add a degree ...
A simple algorithm for solving the cable equation in
... ganglion cells (Koch et al., 1982). Another way of analyzing extended neuronal structures is to segment the structure into small, lumped compartments, assumed to be electrically homogeneous, and to calculate the potential within each compartment (Rall, 1964; Perkel et al., 1981). This method suffers ...
... ganglion cells (Koch et al., 1982). Another way of analyzing extended neuronal structures is to segment the structure into small, lumped compartments, assumed to be electrically homogeneous, and to calculate the potential within each compartment (Rall, 1964; Perkel et al., 1981). This method suffers ...
REGULATORY GUIDE
... adverse localized environmental conditions, such as high temperature, high radiation, high humidity or moisture, wetting (i.e., an operating environment in which a cable is exposed to moisture or high humidity for extended periods of time, or submersion (i.e., an operating environment in which a cab ...
... adverse localized environmental conditions, such as high temperature, high radiation, high humidity or moisture, wetting (i.e., an operating environment in which a cable is exposed to moisture or high humidity for extended periods of time, or submersion (i.e., an operating environment in which a cab ...
Definition of the module stray inductance Ls
... Due to the changing current a voltage drop of Lσ * dioff/dt occurs across the stray inductance Lσ. It is overlayed to the DC link voltage VCC and seen as a voltage spike across the turningoff IGBT1. Permissible limits for turn-off current di/dt and overvoltage can be deduced from the RBSOA diagram o ...
... Due to the changing current a voltage drop of Lσ * dioff/dt occurs across the stray inductance Lσ. It is overlayed to the DC link voltage VCC and seen as a voltage spike across the turningoff IGBT1. Permissible limits for turn-off current di/dt and overvoltage can be deduced from the RBSOA diagram o ...
Question B1
... (b) (ii) Luminance: The luminance of the light emitted from a lamp in a given direction is the intensity in that direction divided by the surface area of the source projected in the direction of light emission. Thus we have: ...
... (b) (ii) Luminance: The luminance of the light emitted from a lamp in a given direction is the intensity in that direction divided by the surface area of the source projected in the direction of light emission. Thus we have: ...
Effect of Current Injection Cable on Lightning Surge
... Transient characteristic of a current injection cable, which is used for a surge measurement, is investigated in this paper. Measurements are carried out in order to confirm the accuracy of a numerical simulation by means of a circuit analysis program, Electromagnetic Transients Program (EMTP). The ...
... Transient characteristic of a current injection cable, which is used for a surge measurement, is investigated in this paper. Measurements are carried out in order to confirm the accuracy of a numerical simulation by means of a circuit analysis program, Electromagnetic Transients Program (EMTP). The ...
Manual
... This apparatus allows students to easily create an electrical DC current by turning a hand crank. The two leads on the back of the apparatus allows for devices such as lamps or small motors to be attached to the apparatus. The back of the apparatus has brushes designed to collect direct current (DC) ...
... This apparatus allows students to easily create an electrical DC current by turning a hand crank. The two leads on the back of the apparatus allows for devices such as lamps or small motors to be attached to the apparatus. The back of the apparatus has brushes designed to collect direct current (DC) ...
instructions max® 4310
... MAX® 4310 is designed to provide maximum protection for audio/video equipment with external signal connections such as cable TV, rooftop antenna and DBS satellite systems. ...
... MAX® 4310 is designed to provide maximum protection for audio/video equipment with external signal connections such as cable TV, rooftop antenna and DBS satellite systems. ...
Keysight Technologies Techniques for Advanced Cable Testing
... and systems require measuring the performance in both the frequency domain and time domain. Frequency domain measurements are typically used to verify the RF performance over the specified frequency range of interest. Time domain and distance domain measurements are typically used to physically loca ...
... and systems require measuring the performance in both the frequency domain and time domain. Frequency domain measurements are typically used to verify the RF performance over the specified frequency range of interest. Time domain and distance domain measurements are typically used to physically loca ...
1 .8 Differentiating EMC ferrite ↔ inductor
... Fig. 1.38: Different winding structures Coupling capacitance You can picture the coupling capacitance between the two windings as plate capacitor between the two windings. From this it follows that you can reduce this capacitance either by increasing the distance or reducing the surface. Both direc ...
... Fig. 1.38: Different winding structures Coupling capacitance You can picture the coupling capacitance between the two windings as plate capacitor between the two windings. From this it follows that you can reduce this capacitance either by increasing the distance or reducing the surface. Both direc ...
Wireless course Part 3 – Radio Antenna Theory v1
... and any matching unit. Most antennas are made of copper or aluminum, while most mobile antennas are made of stainless steel. A feed-line consists of two conductors that carry the signal to and from the radio and to and from the antenna. A matching unit can be an antenna tuner, a series matching sect ...
... and any matching unit. Most antennas are made of copper or aluminum, while most mobile antennas are made of stainless steel. A feed-line consists of two conductors that carry the signal to and from the radio and to and from the antenna. A matching unit can be an antenna tuner, a series matching sect ...
Armature Core
... The coil sides AB and CD now represent by A and B as shown in Fig.2.9. Imagine the coil to be rotating in clock-wise direction. When the coil sides A and B are at position 1, the plane of the coil is at right angles to line of flux, the flux linked with the coil is maximum but rate of change of flux ...
... The coil sides AB and CD now represent by A and B as shown in Fig.2.9. Imagine the coil to be rotating in clock-wise direction. When the coil sides A and B are at position 1, the plane of the coil is at right angles to line of flux, the flux linked with the coil is maximum but rate of change of flux ...
MWS Fixture Cable (FC)
... MWS, Modular Wiring Systems, provide low cost installation of branch circuit wiring for lighting and power. Using modular components that plug together, MWS can be installed in a fraction of the time of hardwiring. Plus, MWS offers the advantage of relocating fixtures and outlets in future renovatio ...
... MWS, Modular Wiring Systems, provide low cost installation of branch circuit wiring for lighting and power. Using modular components that plug together, MWS can be installed in a fraction of the time of hardwiring. Plus, MWS offers the advantage of relocating fixtures and outlets in future renovatio ...
Quality factor of components and approximate analysis of high
... The quality factor QL of a coil varies with the operating frequency ω and remains unchanged irrespective of the location of the coil in the circuit. Higher QL implies a better quality coil in the sense that the energy loss in the component is smaller. Infinite QL represents an idealized loss-less in ...
... The quality factor QL of a coil varies with the operating frequency ω and remains unchanged irrespective of the location of the coil in the circuit. Higher QL implies a better quality coil in the sense that the energy loss in the component is smaller. Infinite QL represents an idealized loss-less in ...
Basic Wire Antennas
... • When the feed line leaves the dipole, it should run perpendicular to the dipole for at least 1/4 wavelength • Avoid running the dipole parallel to long conducting objects such as aluminum gutters. The antenna can couple to the other metal and be detuned • When erecting a dipole as an inverted-V, r ...
... • When the feed line leaves the dipole, it should run perpendicular to the dipole for at least 1/4 wavelength • Avoid running the dipole parallel to long conducting objects such as aluminum gutters. The antenna can couple to the other metal and be detuned • When erecting a dipole as an inverted-V, r ...
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.