capacitors
... Required is a fixing in bearings without clearance (tolerance) -bearings: ideal are precise ball-bearings, not sliding bearing ...
... Required is a fixing in bearings without clearance (tolerance) -bearings: ideal are precise ball-bearings, not sliding bearing ...
Title of Presentation - University of California, Santa Barbara
... Medium scales of integration (1000-10,000 transistors) Wiring requirements for mixed-signal ICs • Low common-lead ground-return inductance • Controlled characteristic impedance for CAD simulation • Low line-to-line coupling in densely packed ICs • Low eeff for time-delay sensitive circuits ...
... Medium scales of integration (1000-10,000 transistors) Wiring requirements for mixed-signal ICs • Low common-lead ground-return inductance • Controlled characteristic impedance for CAD simulation • Low line-to-line coupling in densely packed ICs • Low eeff for time-delay sensitive circuits ...
ISSCC 2007 / SESSION 30 / BUILDING BLOCKS FOR HIGH
... low frequencies. The input impedance seen from the gate of the transistor is equivalent to a negative resistor with a value of gm/w2CgsCS in series with 2 series capacitors, Cgs and CS. In addition, the frequency-increasing negative conductance is desirable because the losses of on-chip inductors ca ...
... low frequencies. The input impedance seen from the gate of the transistor is equivalent to a negative resistor with a value of gm/w2CgsCS in series with 2 series capacitors, Cgs and CS. In addition, the frequency-increasing negative conductance is desirable because the losses of on-chip inductors ca ...
Signal Degradation in Optical Fibers
... • Intrinsic absorption is very low compared to other forms of loss. • It is for this reason that fibres are made up of silica and optical communications systems work between ...
... • Intrinsic absorption is very low compared to other forms of loss. • It is for this reason that fibres are made up of silica and optical communications systems work between ...
On-chip optical interconnect for low-power
... waveguides, ∆ is relatively high and so due to this strong optical confinement, bend radii as small as a few µm may be realised. As can be seen from fig. 1.3b, the bending losses associated with a single mode strip waveguide are negligible if the radius of curvature is larger then 3µm. LY is the Y-c ...
... waveguides, ∆ is relatively high and so due to this strong optical confinement, bend radii as small as a few µm may be realised. As can be seen from fig. 1.3b, the bending losses associated with a single mode strip waveguide are negligible if the radius of curvature is larger then 3µm. LY is the Y-c ...
ch 11 notes
... • Waves are produced by something that vibrates, and they carry energy from one place to another. • Look at the sound wave and the water wave. ...
... • Waves are produced by something that vibrates, and they carry energy from one place to another. • Look at the sound wave and the water wave. ...
Chapter 3 Signal Degradation in Optical Fibers
... digital transmission is usually specified by the bandwidth distance product BW L in GHz.km. For multi-mode step index fiber this quantity is about 20 MHz.km, for graded index fiber is about 2.5 GHz.km & for single mode fibers are higher than 10 GHz.km. ...
... digital transmission is usually specified by the bandwidth distance product BW L in GHz.km. For multi-mode step index fiber this quantity is about 20 MHz.km, for graded index fiber is about 2.5 GHz.km & for single mode fibers are higher than 10 GHz.km. ...
Document
... When a bounded medium is vibrated by some external force, waves are set up in the medium. These waves are reflected back from the boundaries. The interaction of the waves and their reflections produce stationary waves in the medium. However, conditions at the boundary will determine the vibration at ...
... When a bounded medium is vibrated by some external force, waves are set up in the medium. These waves are reflected back from the boundaries. The interaction of the waves and their reflections produce stationary waves in the medium. However, conditions at the boundary will determine the vibration at ...
Pretest for Capacitors 1.) At the moment the switch closes on this
... 14.) A capacitor has capacitance C, charge Q, and potential difference with nothing between the plates. While still connected to a battery, a dielectric is inserted with a dielectric constant of 2. How will each change? a. Cnew = 2C, Q new = Q, ΔVnew = ΔV . b. Cnew = 2C, Q new = 2Q, ΔVnew = 2ΔV . c ...
... 14.) A capacitor has capacitance C, charge Q, and potential difference with nothing between the plates. While still connected to a battery, a dielectric is inserted with a dielectric constant of 2. How will each change? a. Cnew = 2C, Q new = Q, ΔVnew = ΔV . b. Cnew = 2C, Q new = 2Q, ΔVnew = 2ΔV . c ...
Basics of Measuring the Dielectric Properties of Materials
... making the permeability very close to the permeability of free space (µr = 1). All materials, on the other hand, have dielectric properties, so the focus of this discussion will mostly be on permittivity measurements. ...
... making the permeability very close to the permeability of free space (µr = 1). All materials, on the other hand, have dielectric properties, so the focus of this discussion will mostly be on permittivity measurements. ...
A Faraday Cage Exploration:
... These “extra” electrons repel each other because they are of the same sign. Thus, they try to get as far away from each other as they can. In order to do this, they arrange themselves on the outside surface of the conductor, which ultimately causes the electric field inside the conductor to be cance ...
... These “extra” electrons repel each other because they are of the same sign. Thus, they try to get as far away from each other as they can. In order to do this, they arrange themselves on the outside surface of the conductor, which ultimately causes the electric field inside the conductor to be cance ...
A New Zero-Field Paramagnetic Resonance Spectrometer
... have also attempted to make the match between the helix and the transmission lines as good as possible by using transformer type couplers similar to those described by Chen. ls Using this arrangement, we have been able to achieve VSWR's less than two over the frequency band of each helix. The helice ...
... have also attempted to make the match between the helix and the transmission lines as good as possible by using transformer type couplers similar to those described by Chen. ls Using this arrangement, we have been able to achieve VSWR's less than two over the frequency band of each helix. The helice ...
Waveguide (electromagnetism)
In electromagnetics and communications engineering, the term waveguide may refer to any linear structure that conveys electromagnetic waves between its endpoints. However, the original and most common meaning is a hollow metal pipe used to carry radio waves. This type of waveguide is used as a transmission line mostly at microwave frequencies, for such purposes as connecting microwave transmitters and receivers to their antennas, in equipment such as microwave ovens, radar sets, satellite communications, and microwave radio links.A dielectric waveguide employs a solid dielectric rod rather than a hollow pipe. An optical fibre is a dielectric guide designed to work at optical frequencies. Transmission lines such as microstrip, coplanar waveguide, stripline or coaxial cable may also be considered to be waveguides.The electromagnetic waves in a (metal-pipe) waveguide may be imagined as travelling down the guide in a zig-zag path, being repeatedly reflected between opposite walls of the guide. For the particular case of rectangular waveguide, it is possible to base an exact analysis on this view. Propagation in a dielectric waveguide may be viewed in the same way, with the waves confined to the dielectric by total internal reflection at its surface. Some structures, such as non-radiative dielectric waveguides and the Goubau line, use both metal walls and dielectric surfaces to confine the wave.