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Recent content by abees81

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    file sharing between two laptops with two different SSIDs

    Greetings I have the following scenario: Laptop [A] connected to Access Point [A] with SSID [A]. Laptop [B] connected to Access Point [B] with SSID [B]. Access Point [A] and Access Point [B] are connected by a normal Ethernet switch. now is it possible for the two laptops to share files...
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    CST and HFSS optimisation : variable limitation

    hi oh1,,, I hope you had an answer to your question, because i am having the same problem. CST MWS (2009) [transient solver] for some reason would not permits you to specify less than 3 samples for optimization of a single variable!!! regards
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    Power dissipated in RF Generator internal impedance

    Dear All,,, I have a question regarding the basics of transmission lines... If there is an RF source with rms voltage of (Vg) and an internal resistance (Rs) connected to a quarter wave transmission line terminated by an open circuit. Now since the RF source would see a short circuit at its...
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    Multiple plane waves Antenna Factor

    Dear all,,, I was woundering how to measure the total electric field strength from different simultaneous sources at a certain point. what I know is that the antenna factor is useful only if there is an incident plane wave from one direction. what if there were more than one plane wave? how...
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    Common mode interference

    HI guys. I have a question about common mode interference. If there are two closely spaced parallel wires like (twin lead) and one of them is connected to ground. Is this a balanced or an unbalanced transmission line? and is it susceptible to RF common mode interference? Thanks
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    Inductance from 2D/3D results in CST MWS

    hi guys,,, I am trying to visualize the inductance of an antenna using CST MWS 2009. I suppose that the inductance is the ability of the structure to store magnetic field. So I used Magnetic Energy Density field monitor, but am not sure if it adequately represents the inductance! Is there any...
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    Polarization of a dipole antenna - Ludwig 3 polarization

    Re: Ludwig 3 polarization I would be grateful if at least someone tell me the difference between (Az/El) and (Ludwig 3) definitions is there any picture which illustrates the vector orientation of ludwig 3 definition? thanks.
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    Polarization of a dipole antenna - Ludwig 3 polarization

    Dear all,,, I am using CST MWS to simulate the polarization of a dipole antenna. The dipole is alligned with the y' axis and the main beam along the z' axis. The dipole length is (lambda/2). When I switch to Ludwig 3 system and select the (abs) component, I get exactly the doughnut shape...
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    Interference of Circular Polarization in DBS satellites

    Hi everyone. I know that vertical and horizantal polarizations are orthogonal in space. what I dont understand is how can RHCP and LHCP be orthogonal in space. If two waves RHCP and LHCP are existing in the same position, then I assume that their vector components will interfere and may cause...
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    CST MWS far field source for UWB antenna

    Pushhead, I really appreciate your help... I attached the structure of a dipole excited by far field source. What I expect is that the current induced in the dipole is usually the derivative or integral of the incident Field. so what am looking for is the port signal of the dipole. thanx...
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    CST MWS far field source for UWB antenna

    thanks pushhead for the suggestions 1- i've used plane wave source, but there is a restriction of placing it adjecent to one side of the structure box, which is not a flexable solution 2- creating two seperate antennas and placing them apart creates one structure with millions of mesh cells...
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    battery and connection to earth

    thanks flatulent for the valuable information.
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    battery and connection to earth

    hi everyone. well i got into an argument with my colleague regarding a basic principle of electrical conduction. the debate was about what would happen if a negative terminal of a battery is connected to the earth (potential zero) and the positive one to a load say bulb. the negative terminal...
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    CST MWS far field source for UWB antenna

    Thanks Pushhead The idea is just to take a look at the induced current of UWB antenna and its relation to the excitation field. The signal contains huge BW of 7.5 GHz so if I use the Integral Solver, it means that i have to take so many frequency samples, which i guess will take forever to...
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    CST MWS far field source for UWB antenna

    I've put 3 snapshots of cst mws screen showing steps i made to create far field source but it seem not working with transient solver. i would be grateful if someone could take a look at them, and give me a hint. thanks
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