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Hi everybody...
I want to know if with a 4285A LCR meter from Agilent is possible to measure a 10microF MLCC capacitor and if possible what's the accuracy I could get?
Thanks in adv..
antenna resonance measurement
Hi all,
I'm in trouble with a problem on antenna measure of resonance and gain.
It's since a long time I'm trying to resolve my doubt but it's still present.
I'm dealing with antennas for GSM, WLAN applications. Small Printed antennas on PCB or also ceramic chip...
Hi,
I'm trying to design a passband filter working in 869MHz centre frequency with a slope that assures 15 dB min. attenuation at 50MHz away from centre frequency.
With a circuit simulator I designed a 3rd order Chebychev filter which could solve my problems. In particular I've made the filter...
how to measure antenna rl?
Thanks Jallem for your reply...but here the problem is not the design of the antenna...it's just an example...it could be a generic small antenna...the problem is the setup for a correct measurement....do you have any suggestions about it?
Thanks...
good antenna rl
Hi guys,
I'm searching for someone that can once and for all give me the right way to measure antenna RL and gain. Now...I'm not interested in the method...I know it but the correct setup. I mean..when I want to measure RL of a small antenna, take as an example a little folded...
One question...what's the best way to simulate the presence of a display on a PCB? Like a conductive surface or a dieletric body or what? when I have to include it in a model near an antenna (it's relevant on antenna performance) i don't know how to model it?what material assign to it?
Thanks to...
Hi,
I've an interesting question. Could anyone tell me if, when simulating antennas on HFSS, you have obtained Gain values that are reliable if compared with measured ones?
I've done a lot of different models of antennas in HFSS and also the same models with Ie3d. I've obtained similar results...
Hi, I've a problem with Ansoft Designer...
I've simulated the structure in attachment but instead of the expected capacitive behaviour it returns a S11 >1. Why?What's wrong?
Could anyone help me?
Thanks in adv.
Hi...
I've a problem in using Ansoft Designer.
I've a planar structure like a metallic patch feeded by a strip.
Now if I simulate this structure as a Planar EM model I note a capacitive behaviour as I expect. But now I would like to insert a lumped inductor component at the middle of the strip...
Hi,
I've a big problem!I'm simulating in HFSS a planar IFA antenna on FR4 substrate and I've to feed it by means of a Grounded CPW. Firstly I've used a deembedded waveport configured in the right manner and I've obtained good results but now I need to use a lumped port to feed the antenna...
Hi,
I've done a model in HFSS for an inverted planar F antenna for 868 MHz on a FR4 substrate of 100x85 mm^2 and a ground plane 100x65 mm^2.
I've fed the antenna with a microstrip line designed for 50 Ohm impedance.
I've also used as radiation boundary a vacuum sphere of radius 270 mm, more than...
Hi,
I've a problem related to HFSS results.
I've simulated a planar antenna as in the pictures in the attached file.
I've made a simulation with lumped port then I've substituted the lumped port with the wave port and I've deembedded till I've obtained the corrispondence with the position of the...
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