Jul 28, 2021 #1 Y yefj Advanced Member level 4 Joined Sep 12, 2019 Messages 1,212 Helped 1 Reputation 2 Reaction score 3 Trophy points 38 Activity points 7,269 Hello,I have built a circular waveguide as shown bellow,I got a mode photos as shown bellow. but they look very different from the modes in the photo from pozar book. please help me with a way to recognize the mode by its shape? Attachments 1627498611617.png 123.1 KB · Views: 101 1627499909226.png 180.4 KB · Views: 109 1627502287027.png 167.7 KB · Views: 102 Last edited: Jul 28, 2021
Hello,I have built a circular waveguide as shown bellow,I got a mode photos as shown bellow. but they look very different from the modes in the photo from pozar book. please help me with a way to recognize the mode by its shape?
Jul 29, 2021 #2 P PlanarMetamaterials Advanced Member level 4 Joined Jun 13, 2012 Messages 1,457 Helped 404 Reputation 812 Reaction score 383 Trophy points 1,363 Location Edmonton, Canada Activity points 9,834 Your 1(1) mode looks like the fundamental TE11 mode. My guess is that the 1(4) mode is the TE21. Upvote 0 Downvote
Jul 29, 2021 #3 Y yefj Advanced Member level 4 Joined Sep 12, 2019 Messages 1,212 Helped 1 Reputation 2 Reaction score 3 Trophy points 38 Activity points 7,269 Could you please say by what intuition you interpreted these modes? Thanks. Upvote 0 Downvote
Jul 29, 2021 #4 Y yefj Advanced Member level 4 Joined Sep 12, 2019 Messages 1,212 Helped 1 Reputation 2 Reaction score 3 Trophy points 38 Activity points 7,269 Hello i have recognized TE01 mode from the book. but again i cant see the logic in the plot to say "aha this a TE01" Upvote 0 Downvote
Hello i have recognized TE01 mode from the book. but again i cant see the logic in the plot to say "aha this a TE01"
Jul 30, 2021 #5 P PlanarMetamaterials Advanced Member level 4 Joined Jun 13, 2012 Messages 1,457 Helped 404 Reputation 812 Reaction score 383 Trophy points 1,363 Location Edmonton, Canada Activity points 9,834 The first index is the number of field maxima around the azimuth. The second is the number of maximum in the radial direction. Upvote 0 Downvote
The first index is the number of field maxima around the azimuth. The second is the number of maximum in the radial direction.
Jul 30, 2021 #6 Y yefj Advanced Member level 4 Joined Sep 12, 2019 Messages 1,212 Helped 1 Reputation 2 Reaction score 3 Trophy points 38 Activity points 7,269 Hello,Could youplease say on the plot where is the azimuth and where is the radial? Thanks. Upvote 0 Downvote
Jul 30, 2021 #7 P PlanarMetamaterials Advanced Member level 4 Joined Jun 13, 2012 Messages 1,457 Helped 404 Reputation 812 Reaction score 383 Trophy points 1,363 Location Edmonton, Canada Activity points 9,834 Polar coordinate system - Wikipedia en.wikipedia.org Upvote 0 Downvote