Why polyester is not mostly used as Substrate material in microstrip patch antenna?

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Nitin Kumar

FR4 is fire retardant, and rigid. It depends upon the application. If u r trying to make a wearable antenna you may choose polyester as substrate.

Shally Gujral

Thanks alot Nitin sir, I satisfied with your answer.

Regards

Shally

Kenedy Marconi

Dear Shally,

The Polyester is not commonly used at SHF frequencies. Depending on your application, I suggest using the attached substrates. Some of them work well on antenna designs up to 60 GHz or higher.

Best Regards!

Thanks Kenedy Marconi sir for sharing your ideas. I will check for these materials to design high frequency antennas.