FreeLists / si-list / [SI-LIST] Patch antenna

["neilmallik" <neilmallik@xxxxxxxxxxx>]

Hi all,

With regard to my previous message, I need to design a microstrip 
patch antenna with broadband characteristics in the 5 - 6 GHz range, 
i.e. IEEE802.11a range.

So far, I have had responses saying that it is not a good idea 
feeding the antenna using a quarter wave matching, since this 
provides a narrow bandwidth.

I was wondering if anybody had any ideas on patterns, designs and 
dimensions that could be used for the IEEE802.11a range. The patch 
could not be larger than 5cm x 5cm, and the permittivity and 
substrate height can be any suitable values.

In addition, I am currently working on a bowtie antenna. Any 
suggestions on the dimensions would be good.

Finally, I am aware of the rectangular patch formulae for determining 
the length and width of a patch. Are there formulae for all types of 
patterns (bowtie, triangular, rhombic etc.,)

Thanks in advance.

Neil.

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