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In HFSS, just use additional waveports. You select which ports to excite under HFSS->Fields->Edit Sources. The ones that are not excited will just absorb the mode. Furthermore, you can get all the relevant scattering parameters this way.
Basically yes, they are an epoxy coated combination of capacitor and ferrite beads (inductors) for supressing RF interference. To DC they usually appear as a short circuit. In the photo I would guess they block interference entering or leaving the board and the red discs are to absorb excess voltage spikes. Check with Murata, they are one of the
Advanced design may be built into the charger, but the batteries also need to be compatible since they obviously have to absorb a high charge rate. I once had a nimh battery pack made from AAA size, that came with a 'fast' charger that sent about 1A into them. As I remember charging stopped when they reached a certain voltage then started to drop.
Hi, first off all you need to understand the Radiation Boundary you use. The thing you want to simulate is the far field characteristics of your antenna in an infinitly large air box. As this cannot be designed you put the radiation boundary at the end of a finite airbox. This boundary is shall absorb all incoming waves but to work well it must be
Wonder what a dissipative short circuit is? An ideal short has zero ohms and thus can't dissipate power. A non-ideal antenna might have internal losses which can show with any load, also open circuit. We would need to analyze the antenna design details. An unloaded antenna without internal losses doesn't absorb any power from an electromagne
Typical glass transparency is in the area of 90 percent, assuming it's not a special formulation designed to absorb certain wavelengths.
I'd suggest 3rd ring (n+/dnw) : float/VDD 2nd ring (p+/pw) : 0 1st ring (n+/pw) : float/VDD A VDD connection of the n+ guard rings can raise the whole VDD net well above its normal voltage level - which can absorb a lot of energy during ESD breakdown - if not the VDD protection itself limits this voltage too much. In this latter case, float
The radiation gain is in fact the directivity which is calculated knowing that the power delivered to the antenna is totally absorb by the antenna. We compute also the radiation intensity (W/str) in one direction to the isotrope radiation intensity. The gain take into account the loss (dielectric and conductive) and the mismatch of the antenna. By
I am currently troubleshooting my circuit design board, and found out that some of my components are placed in the wrong manner and some of the traces were open , but upon setting every components at right position and reconnecting the traces, my circuit work but with not enough current, so still some of the components didn't function well. What ar
Without a load, high flyback Vce can easily kill the transistor. The snubber is only good to absorb the leakage inductance energy, not the full flyback energy. The other point is that the 1K base resistor value will put the transistor into linear operation with huge losses. I don't know which test is intended with this circuit, but it should con
I have to admit that due to the unusual way you arranged the components in the drawing on post #1, it became not too easy to clearly check the current flowing from mains to the LED, but in any case I would recommend thinking about implementing a soft-start before the LED by a RC net, as this component has an intrinsic inability to absorb spikes of
Epoxy seals can be hydroscopic or absorb molecules of H2O Each Mfg and part has a Class rating for these, In the old days plastic parts were never rated below 0'C , hence consumer spec is to prevent ice cracking wirebonds. This problem was cured by Sumitomo, I believe. LEDs use a different "water-clear" Epoxy which is more hydroscopic and low
A possible problem could be that the voltage overshoot caused by the transformer leakage inductance is exceeding Vds,max of 55V. An oscilloscope measurement can tell. The weak snubber is probably not sufficient to absorb the voltage spikes, a RCD snubber would be better suited.
I doubt any MLCC will absorb this load dump due to the high ESR and/or low voltage rating. However a 3kW TVS is more suitable for this
The problem with RS-485 in full duplex is cross-talk from CM coupling of signals. To get good performance a ground wire helps absorb stray CM noise and a good CM choke helps even more. Data wires should be balanced such as CAT5 or twisted pair with proper impedance terminator matched to cable impedance.
A ferrite bar in a nylon or fiberglass+ neoprene sleeve becomes the strong lossy RF absorber on the door seal or on both sides around the edge to attract and absorb the stray energy. Half wave choke provides best path for leakage to follow and get absorbed locally rather than radiate out the slot antenna. The Ferrite for microwave unlike (...)
So you showed that the problem is related to power supply. Without seeing power supply waveforms we can just guess, probably the 3 A supply isn't prepared for the current pulses of a GSM transceiver, or the voltage is beyond specified range. GSM modems usually need supply filter capacitors to absorb the current pulses, at least several 100 ?F.
short-molecule spirits are good in theory, but in reality they are bad dielectrics. they easily absorb water from the air. I don't know about higher spirits, but I believe they should repel water.
Your explanation is quite confusing. If you have a LC resonator, then you can "remove" the resonance by two possible ways: - tune the resonance frequency elsewhere, by using a varicap diode, - load your resonator so that it will no more have a resonance you can use a PIN diode or a switch with a resistor to absorb the resonance energy. You need
Adapting the gain of the RF and analog signal paths in order to absorb most of the input signal amplitude variation remains the most effective solution for optimizing the dynamic range of integrated receiver. This article may shed some light.