Anyway, your "expert" on YT is stupidly wrong.
You forget working at 2.4GHz.Everything is critical at RF.
Typical GND connection of a stub or grounded components should be as follows.
View attachment 146339
- but you have an unconnected FET source pin.
Generally I'm curious how the LNA dimensioning has been derived.
The Eagle airlines would disappear if the traces are routing the connections correctly. Something is apparently wrong.
I thought the unconnected source pin would be fine, because I am using the other source pin; aren't the two source pins connected internally?
To get rid of the airwires, you have to connect the center of the pad to the centerline of the trace. You can do this by placing a very thin line inside the dimensions of your microstrip line that connects the center of the pad to the centerline of the trace.
would this do any significant change in the actual circuit?
To get even close to your design requirements with this board, you're going to have to connect both sources to the proper termination.
You forget working at 2.4GHz.Everything is critical at RF.
Typical GND connection of a stub or grounded components should be as follows.
View attachment 146339
does the size of the strip matter (will it effect the characteristic impedance) when connecting the unconnected source pin to the other source pin? if I used a smaller strip to connect, would you think it would significantly change the performance of the LNA?
I have a specific width (to keep Zo = 50), a certain length (1/10 wavelength)
You misunderstood the rule. The rule is for the line between 50 ohm circuit parts. You have have a lumped circuits with many SMD, that's a different topic than connecting 50 Ohm circuit blocks.
-Silkscreen and solder-maks is not necessary.But immersion gold plating may improve the performance.
I left out silkscreen and soldermask for the manufacture, do you think this is a good idea?
I did include the immersion gold though for the surface finish. Is HASL not as effective or something?
I also ask if she can leave out silkscreen too, then she says, "but usually silkscreen is needed for assembly, so we can know where to solder the components."
how bout solderpaste?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?