Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
I'm using HFSS Designer to simulate S parameters. Yes, voltage gain is below 1, but current gain should be high, so power gain for me should be more than 1, (S21 > 0 dB). I'm wrong ? Otherwise why we call it an amplifier ?
Hello,
I'm playing with J310 in source follower and i would like to know why S21 response of a such amplifier is negative, whereas in theory the power gain should be high ? Biasing is composed of two resistors, gate resistor of 1 MOhm and source resistor of 200 Ohm. Source and load impedances...
Hi,
I'm wondering how to simulate a circuit at different frequencies with different amplitudes, for example at 1MHz with 1V, at 2MHz with 3V source etc. Since there are a lot of frequencies i can't change amplitude and frequency of a single tone voltage source manually. I need some kind of...
Urms and Irms are calculated at the power source, as well as U_SRC and I_SRC on 3rd figure (but max values). No, it isn't a good matching circuit, the equivalent impedance of all circuit is about \[Zin=48.85+j32.15\]. But it's ok, i want just understand the values given by ADS and (especially)...
Hi guys,
Can some one explain me how is it possible to get these voltages and currents on this circuit ? If P=1kW, f=2MHz
And/or these amplitudes of voltage/current at the power supply in ADS:
It doesn't match my calculus, because i find \[U_{rms}=264.5V\] and \[I_{rms}=4.52A(-33.3^{\circ})\]
I have an AM emitter connected to an antenna, at constant power of 1kW
So, the maximum power (1kW) is delivered to both, output impedance and the load, so each of them consumpt only a half, and only 500W are delivered to the load (10A*50 ohms=500W). Is it always the case or manufacturers of...
If you take an NRZ encoding and you want to send '101' , '1' state will be shorter with high frequencies. Higher the frequency shorter is 'on' states, so less energy is needed. On the other side , high frequencies suffer from higher transmission losses that needed (depends on distance) to be...
2SunnySkyguy
I finally understood the link between two voltage/current distributions (standing wave distribution and time distribution). But i would like to know how NEC calculates standing current at any location, i find it interresting. I thought about this formula to determine impedance at a...
2SunnySkyguy
Yes i know that
2volker@muehlhaus
Ok , is there any way to find this impedance at other locations ?
For example is there any logical explication for the value of current at 15th segment of this monopole ? (how NEC calculated it)
By the way, at the resonance, phase seems to be...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
