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They are totally different jobs. RF engineer is focus on RF, such as electromagnetic, antenna,microstrip.but for RFIC, micro-electronics is necessary.CMOS,transistor,Si,exp.
So, if transfer to RFIC, you should know those knowledge above. ADS,empire,hfss are just tools.
how to calculate sar
Dear all
In using hfss, I find HFSS-->Field-->SAR Setting. But I dont know how to calculate SAR using HFSS. I have some question about it.
1. is it realizable to caculate SAR in HFSS? For example, gsm900/1800/1900 handheld phone, How long will it take to finish calculation...
I have a question about monopole antenna. If Ground plane(GP) is "mirror" like what you describe. Why ground plane dont exist under monopole antenna? monopole antenna has only one feed point,without ground point. and it must have clearance area under antenna.
Could you explain it. Thank you...
Thank you,guys:)
The more important I want to know, how much current will cost when using wlan IC(54Mbits,maxim power output)?
I saw one cellpones integrating GSM and wifi. When using wifi, it add 500mA. 500mA! Is it normal?
"All you need to complete the capacitor is an external conductor - a probe lead, chassis, or any other conductor completes the structure."
Sir, I am a little puzzled about what you say above.
Here I correct the phenomena I see on network anlyzer.
In range about 2GHz, when press my finger on...
hi, friends
Here I have problems for your help.
I want to creat substrate model of my PCB board in ADS.
As you see in attached files, signal lines is on the layer2. The ground is layer6.
On layer1,3,4,5, there is no singal lines and ground. Here I want to simulate this
kind of PCB exactly...
Thanks for all of you. Somebody else say that finger just like capacitance in AC. So I test my finger using network Analyzer. It's about 30pf in 1GHz. Is it because "dermis and bloodstream" ?
In Layout, signal is transmited from the left A & B(red in picture). And it is difference signal(I/Q) of vco. The output point of signal is C in the right(red in picture).
The distance between two components nearby is about 0.1mm.
The components style is 0402.
Capacitance is about ***...
Re: HFSS ERROR! Help!
"excite with a current", what does it mean? Does it mean that I should define the excitation port as lumped port or current source?
Thanks a lot!!!!
Meet error during "Analysis"
Port refinement, process abc3d : There are no boundaries to define "WavePort1" correctly. This may be due to incorrect material definitions for those objects that make up the port surface. Please verify the material assignments and properties.
I am puzzled about...
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