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i will use 2 discrete low pass filters 28MHz and 56 MHz but i need help with multiplexers or switches for the selection
a schematic with a low cost solution could help
Analog list has no Low pass at the range i need that is not obsolete
Low pass for direct conversion receiver to select 7/14/28/56/112 MHz channel BW that means 3.5/7/14/28/56 MHz low pass cut off freq
+ the 6518 had integrated vga
But the problem let's say is not the vga but the selective...
The coupling what you mean you can not see it? you want to visualize it?
...the effect of the coupling is calculated with momentum and the s parameters have been calculated with the coupling and it is accurate
ADRF 6518 is a low cost chip that offers a dual programmable baseband low pass filter with a great range of tunable gain
Unfortunately this chip is obsolete and the other components of the same company are not doing the same job (frequency tunability etc is not the same or they are expensive )...
I want to simulate with ads momentum a microstrip configuration top metal layer which will be connected somewhere else @ the rf pcb (40GHz) and is necessary to be interconnected to another layer throu an intermediate stripline layer...so if you have any suggestion or an example of something like...
Ok i agree with you!
The question means if someone have ever tried to realize and measure something with a high frequency resistor and has something to suggest
I design a wilkinson splitter @ 30 GHz with momentum!
I found from vishay some "high frequency" resistors up to 40 GHz. They give an electrical model and i use it for co simulation.!
I see some degradation! (the resistor is not 100 Ohm (real part ) after 20 GHz
Is there something to suggest!
I...
I am thinking to use this splitter from macom MAPD-010638-C2WSOT (5-1600MHz)
Can anyone predict the performance of this component down to dc and explain what will happen?
I am interested down to 50khz (not dc)..
I was thinking that ADS could be a good start (I have seen many papers and thesis using that for IC)
So you suggest to use cadence
Is it an expencive software? Does it have free generic pdks?
ADS does not give free generic pdks?
Thanks
so more info bout the free generic... i want to learn more about rfic simulation and learn about the layout! i do no want to make a final chip for commercila purpose...just want to learn. Is there a way?
I just want to find a way to learn not to dstirbute any company's pdk.. a free one not...
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