 PCB Squiggles
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Thomas W
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Thu Sept 19 2013, 09:01PM
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Registered Member #3324
Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
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I saw that one before, i really wish i could understand that frame of the video.......
How did they come up with that O.o
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Myke
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Fri Sept 20 2013, 08:58PM
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Registered Member #540
Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
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They are quarter wavelength radial stubs. 
It's probably some low pass filter.
People usually use some fancy E&M simulators to find how each of the components will behave on their substrate.
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johnf
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Fri Sept 20 2013, 09:24PM
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Registered Member #230
Joined: Tue Feb 21 2006, 08:01PM
Location: Gracefield lower Hutt
Posts: 284
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Its easy its a low pass filter the pyramidal sectors are capacitors and the thin interconnects are microstrip inductors. The filter requires a ground plane on the other side for it to operate
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