In Reply to: RE: Nope. posted by Duke on September 11, 2007 at 01:08:18:
"A transmission line enclosure with the line closed off at the end (instead of open) is really just a well-braced sealed box."
Quite right. If there is no vent there is no transmission. Likewise, if the vent is restrictive it's not a TL. A TL is by definition non-resonant except at the quarter-wavelength frequency, with stuffing employed in sufficient density to suppress any other resonant peaks arising in the line. If the size of the vent is restrictive, creating a resonant peak below the quarter-wavelength resonance, it's a reflex box, albeit a very long one.
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Follow Ups
- Yep. - Bill Fitzmaurice 06:55:20 09/11/07 (3)
- So what would you call a Zu Druid? (no jokes, please) - Maxamillion 09:34:45 09/11/07 (2)
- RE: So what would you call a Zu Druid? (no jokes, please) - Bill Fitzmaurice 13:49:45 09/11/07 (0)
- RE: So what would you call a Zu Druid? (no jokes, please) - freddyi 10:05:42 09/11/07 (0)