patch antenna width - RF Cafe Forums

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vamsi

Post subject: patch antenna width

Posted: Wed Feb 16, 2005 1:31 pm

I am desiging uhf patch antenna, I got little freedom about the width of antenna ( less then 2cm), I cant use more than that. I can change my lenth. Is there anyway i can design this antenna with limited freedom on width.

According to my knowledge if we decrease the width input resistance of antenna increases. can we use matching networks?, what type of networks we can use.

resonant frequency is 915 MHz.

thanks

Guest

Post subject:

Posted: Tue May 03, 2005 5:35 am

Hi , Dear vamsi,

you hadn't said anything about the high of your substrate. if you have any limitation on it?

three important parameters that effect to the input impedace of microstrip antennas, are the thickness of substrate , it's relative permittivity and width of strip.

if you have limitation on one of them, you can use two others to implement your design.

I hope , it'll be helpful

Posted 11/12/2012