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Can we use 0603 or 0402 resistor pad at ku band ?

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zeshan102

zeshan102

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Ku band att pad

can we use 0603 or 0402 resistor pad at ku band ?

regards
 

Re: Ku band att pad

Hi

I think what's you need ...simulate this pad using one of free field solvers
(Sonet for ex) and see is the pad parasitic good or not good for your application.

Regards
 

Re: Ku band att pad

Hi,

If you can't neglect parasitic element of chip,
ceramic side of chip resistor should be mounted to surface side.
(resist side of chip is mounted on substrate side)

This mount method is reduced parasitic element of chip resistor.

good luck.
 

Re: Ku band att pad

micro_mory said:
Hi,

If you can't neglect parasitic element of chip,
ceramic side of chip resistor should be mounted to surface side.
(resist side of chip is mounted on substrate side)

This mount method is reduced parasitic element of chip resistor.

good luck.
Click to expand...
correct, but not enough.
Resistor with the pad NOT WRAPPED should be used to reduce parasitic.
Also, 0603 is "very large" at Ku band, smaller dimensions and thin film type are better.
 

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