This is very nice, and playing with the java app means I can finally visualize circular polarization.
On Thu, Feb 19, 2015 at 7:41 AM, Hardy, Tim <tha...@comsearch.com> wrote: > This describes it fairly well > > http://www.thebdr.net/articles/ops/xmtr/RF-pol.pdf > > > > Sent from my iPad > > On Feb 18, 2015, at 10:30 PM, Adam Moffett <dmmoff...@gmail.com> wrote: > > 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> 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 > Sent: Wednesday, February 18, 2015 4:10 PM > To: 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> 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 > Sent: Wednesday, February 18, 2015 3:35 PM > To: 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> 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 > Skype: danieldwhite > Social:�LinkedIn > � > *************************************************************************** > � > From:�Af [mailto:af-boun...@afmug.com]�On Behalf Of�Josh Luthman > Sent:�Wednesday, February 18, 2015 1:55 PM > To:�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 > Direct:�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> 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? > > � > > � > >
