(A) I(t)
... For the resistor: VR=IRR and VR and IR=I are in phase For the capacitor: Vc=IXc and Vc lags Ic=I by 900 For the inductor: VL=IXL and VL leads IL=I by 900 at any instant: VL+Vc+VR=V0sin(t), that is the total voltage Vtot is the vector addition of the three individual ...
... For the resistor: VR=IRR and VR and IR=I are in phase For the capacitor: Vc=IXc and Vc lags Ic=I by 900 For the inductor: VL=IXL and VL leads IL=I by 900 at any instant: VL+Vc+VR=V0sin(t), that is the total voltage Vtot is the vector addition of the three individual ...
A Frequency Agile Switched Delay Line Slow-wave BiCMOS Filter
... need for transceivers that can simultaneously handle multiple standards and frequency bands [3]. To this end, the ability to achieve frequency agile filtering needs to be developed for transceivers in the mm-wave band [3]. Passive filter designs [4] are preferred due to their stability, wide operati ...
... need for transceivers that can simultaneously handle multiple standards and frequency bands [3]. To this end, the ability to achieve frequency agile filtering needs to be developed for transceivers in the mm-wave band [3]. Passive filter designs [4] are preferred due to their stability, wide operati ...
KTa0.6Nb0.4O3 Ferroelectric Thin Film Behavior at Microwave
... under a 15-kV/cm electric field; this poor agility can be explained by the disordered microstructure of the films. On MgO substrate, the tuning factor is about 4% under the same conditions; it is higher than on alumina mainly because of a better film growth. However, this agility could have been elevat ...
... under a 15-kV/cm electric field; this poor agility can be explained by the disordered microstructure of the films. On MgO substrate, the tuning factor is about 4% under the same conditions; it is higher than on alumina mainly because of a better film growth. However, this agility could have been elevat ...
Graphene as a Strictly 2D Sheet or as a Film... Small but Finite Thickness Linköping University Post Print
... For the present task we need a geometry consisting of two regions and one interface, i|j. For planar structures there are two types of mode [10], transverse magnetic (TM) or p-polarized and transverse electric (TE) or spolarized. They have different amplitude reflection coefficients. At an interface ...
... For the present task we need a geometry consisting of two regions and one interface, i|j. For planar structures there are two types of mode [10], transverse magnetic (TM) or p-polarized and transverse electric (TE) or spolarized. They have different amplitude reflection coefficients. At an interface ...
Modulator structures for radio-on
... While it was derived for an inductively-coupled half-wave resonator, it can be shown this expression remains unchanged for other types of resonator configurations (for example, capacitively-coupled resonators or resonators employing higher order modes), provided that the critical coupling condition ...
... While it was derived for an inductively-coupled half-wave resonator, it can be shown this expression remains unchanged for other types of resonator configurations (for example, capacitively-coupled resonators or resonators employing higher order modes), provided that the critical coupling condition ...
CHARACTERISING ROOM TEMPERATURE THz METAL
... The approximation in (21) has been cited by Paul [7]. It is worth noting that [8] takes even more extreme approximations, by ignoring the imaginary part of the exponent within the approximation in (21) for a thickness much less than the wavelength; while ignoring this correction factor altogether wh ...
... The approximation in (21) has been cited by Paul [7]. It is worth noting that [8] takes even more extreme approximations, by ignoring the imaginary part of the exponent within the approximation in (21) for a thickness much less than the wavelength; while ignoring this correction factor altogether wh ...
... We have come a long way. Better metallic media have been invented (twistedpair and coaxial cables, for example). The use of optical fibers has increased the data rate incredibly. Free space (air, vacuum, and water) is used more efficiently, in part due to the technologies (such as modulation and multi ...
Simulation of Photonic Band Gaps in Metal
... [1,2,9-11]. Recently, considerable interest in metallic PBG structures [5-8,12-14] has been expressed. For analysis of metallic PBG cavities formed by single or multiple defects in the PBG structure, finite-element codes such as SUPERFISH [15] and HFSS [16] are ideally suited. For studies of wave pr ...
... [1,2,9-11]. Recently, considerable interest in metallic PBG structures [5-8,12-14] has been expressed. For analysis of metallic PBG cavities formed by single or multiple defects in the PBG structure, finite-element codes such as SUPERFISH [15] and HFSS [16] are ideally suited. For studies of wave pr ...
TT105 - 3759
... aluminum oxide which serves as the dielectric. These crystals have a higher resistance than the normal (wet) electrolyte solution, causing some parts of the oxide surface to have a series resistance. This series resistance does not cause increased leakage, since the insulating oxide is still intact. ...
... aluminum oxide which serves as the dielectric. These crystals have a higher resistance than the normal (wet) electrolyte solution, causing some parts of the oxide surface to have a series resistance. This series resistance does not cause increased leakage, since the insulating oxide is still intact. ...
Silicon Photonics 143
... In this section the use of silicon photonics applied to the light source is discussed. While a silicon laser is still out of reach, work is being done worldwide on silicon light emitters that emit both visible and infrared radiation. A silicon emitter is the missing piece for monolithic integration ...
... In this section the use of silicon photonics applied to the light source is discussed. While a silicon laser is still out of reach, work is being done worldwide on silicon light emitters that emit both visible and infrared radiation. A silicon emitter is the missing piece for monolithic integration ...
The Microstrip Ring Resonator for Characterising Microwave Materials
... The edge coupled microstrip ring resonator is commonly used to determine microwave substrate properties, in particular the dielectric constant and loss tangent. It is also well known that under certain circumstances, a microstrip ring circuit can act as a narrowband antenna. Normally radiation losse ...
... The edge coupled microstrip ring resonator is commonly used to determine microwave substrate properties, in particular the dielectric constant and loss tangent. It is also well known that under certain circumstances, a microstrip ring circuit can act as a narrowband antenna. Normally radiation losse ...
Introduction to Ultrasound
... device called a transducer. The transducer is placed directly on top of the skin, which has a gel applied to the surface. The sound waves that are sent by the transducer into the body and hit a boundary of organs Some of the sound waves get reflected back to the probe, while some travel on further u ...
... device called a transducer. The transducer is placed directly on top of the skin, which has a gel applied to the surface. The sound waves that are sent by the transducer into the body and hit a boundary of organs Some of the sound waves get reflected back to the probe, while some travel on further u ...
The modulation response of a semiconductor laser amplifier
... The results of Tauber et al. [13] show that the propagation losses for modulated currents applied to the contacts can be very large at microwave frequencies, i.e., in excess of 300 dB/cm for frequencies larger than 20 GHz. If this is the case, the modulation is to be considered rather as a “point so ...
... The results of Tauber et al. [13] show that the propagation losses for modulated currents applied to the contacts can be very large at microwave frequencies, i.e., in excess of 300 dB/cm for frequencies larger than 20 GHz. If this is the case, the modulation is to be considered rather as a “point so ...
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.