Frequency Selective Surface

How to use openEMS. Discussion on examples, tutorials etc

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gopugnair11
Posts: 7
Joined: Sat 13 Jun 2020, 16:14

Frequency Selective Surface

Post by gopugnair11 » Wed 21 Oct 2020, 06:29

I need to design a Frequency Selective Surface. How should I get the tetrahedral shape of metal patch? Should I proceed with AddPolygon? The proposed structure is attached here.
Screenshot 2020-10-21 095847.jpg
Screenshot 2020-10-21 095847.jpg (29.18 KiB) Viewed 1299 times
How should I resonate the FSS at 3.5GHz and 4.9GHz so that it acts as a transmitter at 3.5 and reflector at 4.9?
Last edited by gopugnair11 on Tue 10 Nov 2020, 15:11, edited 1 time in total.

thorsten
Posts: 1430
Joined: Mon 27 Jun 2011, 12:26

Re: Frequency Selective Surface

Post by thorsten » Wed 21 Oct 2020, 08:20

Yes this looks very much like a polygon...

br
Thorsten

gopugnair11
Posts: 7
Joined: Sat 13 Jun 2020, 16:14

Re: Frequency Selective Surface

Post by gopugnair11 » Wed 21 Oct 2020, 11:05

thank u

gopugnair11
Posts: 7
Joined: Sat 13 Jun 2020, 16:14

Re: Frequency Selective Surface

Post by gopugnair11 » Wed 21 Oct 2020, 11:32

Here a square patch is printed on a substrate. At two corners a circular disc is made and two feed lines are provided which is partially sandwiched between ground and patch. Two feed lines are connected with these two disks through the plated-through holes .How the feed should be given? Can I use MSL feeding? Only length and width of feed given.
LBE.jpg
LBE.jpg (22.48 KiB) Viewed 1294 times

thorsten
Posts: 1430
Joined: Mon 27 Jun 2011, 12:26

Re: Frequency Selective Surface

Post by thorsten » Thu 22 Oct 2020, 20:14

Yes you can tries MSL lines, or go simpler (but more manual) and use lumped ports at the end...

br
Thorsten

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