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HIGH-PERMITTIVITY CERAMIC (DK36) FOR R F APPLICATIONS

Dielectric ceramics with high permittivity (?r>10) and low dielectric loss (tan?<10?3) have a number of applications in microwave devices. The process technology for realizing DK36 ceramics with dielectric constant er 36-39 has been established. This is similar to imported ceramics like TE36, MDR36, SB350 and 8300 and useful for microwave filters, oscillators etc. The process technology adopted is advanced solid state ceramic route. The ceramics can be fired to full density below 1350°C. DK36 ceramics can find use in devices like filters, oscillators, diplexers, patch antennas etc. The nominal properties of DK36 ceramic are given below.

Bulk density (g/cc)

4.35 – 4.55

Coeff. of thermal expansion (10-6/K)

8.8 – 9.2

Dielectric constant (er)

36 – 38

Unloaded Quality factor (Qu @ 4 GHz)

6,000 – 8,000

Loss factor (tand, 10-4) @ 4 GHz

1.25 – 1.5

Temp. coeff. of frequency (tf, ppm/K)

2 – 7

 

DK36 ceramics can find use as resonators in filters, oscillators etc. and substrates for patch antennas.

VSSC is willing to offer the technology of DK36 to eligible interested parties who are in the field of manufacturing similar items

Interested entrepreneurs are requested to contact the address given below with all relevant particulars regarding their line of current activity, infrastructure available, market assessment of the product, financial arrangements made, turn over and sales of their products for the past years and a copy of their latest annual report.

For further details, please contact: 

Smt U Sreerekha

Technology Transfer & Industrial Co-Ordination division (TT&IC)

Vikram Sarabhai Space Centre,

Thiruvananthapuram-695 022

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Ph: 0471-2564081, Fax: 0471-2564134


 

    Site last updated: Tuesday 12 December 2017
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