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Need help, Im looking for high dielectric ceramic material

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kocha

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maruwa m24

Hello all

Im looking for high ε low tanδ ceramic substrates ,
for antenna size reduction.

The parameter of the substrate sould be
ε>40 with dissipation factor lower then 0.002.

thanks in advance

Kocha
 

Re: Need help, Im looking for high dielectric ceramic materi

It seems that there is no commercial ceramic substrate with so high dielectric constant. The commercial ceramic substrate which is often used is Alumina with the dielectric constant of 9.8.
 

Re: Need help, Im looking for high dielectric ceramic materi

Dear burton

here are some links for high ε ceramic material:

http://www.heraeus-th.com/wch2/tfd/e_th_Techinfo.nsf/46A1A92B8A54B565C1256EF600242F7F/$FILE/CT707_CT765.pdf

**broken link removed**

But thus company dont have any material with low dissipation factor.

Regard

kocha
 
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    sunyi

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ceramic substrate we used are 9.2 ,27 or 65
 

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    kocha

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Re: Need help, Im looking for high dielectric ceramic materi

peak said:
ceramic substrate we used are 9.2 ,27 or 65
Click to expand...

Dear Peak

Do you have a clue what is the dielectric loss (dissipation factor/tan delta) of the material.

I found a material at maruwa M24
the εr is 24 and the Q factor is 200000 what is the tan delta ?

thanks in advance

kocha
 

Re: Need help, Im looking for high dielectric ceramic materi

Many thin/thick film fabs offer high-K materials with low loss tangents. See page 6:

**broken link removed**
 

    K

    kocha

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Re: Need help, Im looking for high dielectric ceramic materi

madengr said:
Many thin/thick film fabs offer high-K materials with low loss tangents. See page 6:

**broken link removed**
Click to expand...

Thanks madengr

you help a lot

KOCHA
 

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