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Thanks for you reply. I am now sure if the replies in that forum are from analog device's supporting team or not.
But if the s2p file is describing the performance in the eval board, does that mean it is impossible to redesign a matching circuit for the board with difference substrate?
Should...
Thanks for your reply! According to the gerber files and reference pcb layout, they are using cpwg instead of microstrip lines. I have measured the length of the TLs in the gerber file, they are exactly 0.2" and 0.1".
For the substrate parameters, I set the parameters according to the datasheet...
Hi all,
I am new to this field. I am now drawing a PCB for a power amplifier (HMC408). Although analog device has provided the reference schematic and PCB layout, external matching circuit is required for this IC, and the matching circuit in the reference design is designated for RO4350 and...
Thanks for your advice. I will resolder the SMA connector to see if I can obtain a better result. So do you think the deviation between simulatio result of layout and schematic is also because of the uncertainty of dielectric constant of FR4? I am worry that that's because I didn't setup the...
Thanks for your reply. I understand that FR-4 is only suitable for low frequency applications, but there is budget limiation for this device so I have no choice.
Hi all,
I am recently designing a 5.8GHz wilkinson power divider. FR4 will be used in this design and the thickness of the substrate is 0.8mm. Here is the schematic of the power divider:
The resonant frequency is at 5.8GHz for S11 after fine tunning some parameters. However, with the same...
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