Please enlighten me....
Glad to see that for the most part this thread kept the discussion on
"polarization" rather than "polarity" these sound similar but they are
not synonymous.
Sent from my iPad
On Feb 18, 2015, at 6:13 PM, Chuck McCown <ch...@wbmfg.com
<mailto:ch...@wbmfg.com>> wrote:
Technically that is impossible to answer due to the infinite number
of waveguide modes.
However, the practical answer is that we always use a very simple
mode. And in that mode, the probe always comes out of the broad
wall, about a quarter wavelength from the end of a dead ended
waveguide. And that probe is the polarization.
You have to match the openings. The internal dimensions of the
waveguide and the hole in the radio must line up. In the event the
mechanical orientations are at right angles, you have to use a
section of flexible waveguide to make the twist.
*From:* Dan Petermann <mailto:d...@wyoming.com>
*Sent:* Wednesday, February 18, 2015 4:10 PM
*To:* af@afmug.com <mailto:af@afmug.com>
*Subject:* Re: [AFMUG] OT: Waveguide polarization
Hmm, now I am not so sure.
Is it the orientation of the waveguide that determines the polarity
or the orientation of the probe?
For example, waveguide exits the radio with wider dimension in a
left/right direction, and enters antenna in a up/down direction, did
the polarization of the signal rotate 90 degrees?
On Feb 18, 2015, at 3:56 PM, Chuck McCown <ch...@wbmfg.com
<mailto:ch...@wbmfg.com>> wrote:
If you ever need to question this again, it is opposite the major
dimension.
If you could see the little probe /antenna that feeds the waveguide,
you would see it sticking up out of the broad wall.
The polarization of that little probe is the polarization of the
waveguide. And it is parallel to the short walls.
*From:* Dan Petermann <mailto:d...@wyoming.com>
*Sent:* Wednesday, February 18, 2015 3:35 PM
*To:* af@afmug.com <mailto:af@afmug.com>
*Subject:* Re: [AFMUG] OT: Waveguide polarization
Great! Thanks to all who answered.
On Feb 18, 2015, at 3:19 PM, Daniel White <afmu...@gmail.com
<mailto:afmu...@gmail.com>> wrote:
Josh I hate to disagree with you here� but a waveguide is a
waveguide. Maybe your link is in the wrong polarization :-)
Top is correct.
***************************************************************************
Daniel White - Managing Director
SAF North America LLC
Cell: +1 (303) 746-3590
daniel.wh...@saftehnika.com <mailto:daniel.wh...@saftehnika.com>
Skype: danieldwhite
Social:LinkedIn <http://www.linkedin.com/in/danielwhite84>
__
***************************************************************************
*From:*Af [mailto:af-boun...@afmug.com]*On Behalf Of*Josh Luthman
*Sent:*Wednesday, February 18, 2015 1:55 PM
*To:*af@afmug.com <mailto:af@afmug.com>
*Subject:*Re: [AFMUG] OT: Waveguide polarization
On SAF CFIP Lumina it was opposite. Like your first image.
Josh Luthman
Office:937-552-2340 <tel:937-552-2340>
Direct:937-552-2343 <tel:937-552-2343>
1100 Wayne St
Suite 1337
Troy, OH 45373
On Wed, Feb 18, 2015 at 3:54 PM, Dan Petermann <d...@wyoming.com
<mailto:d...@wyoming.com>> wrote:
If you have a waveguide connection to an antenna, what
direction (up/down or left/right) does the wider portion of the
waveguide go?
___
| |
| | = H Pol?
| |
or
_______
| | = H Pol?
