High Efficiency Multimode C-Band Feeds

Discussions about low-noise blocks, waveguides, horns and other components used at the prime focus of your reflector dish.
elko
TVRO Guru
TVRO Guru
Articles: 0
Posts: 213
Joined: Sat Aug 30, 2014 11:02 pm

Re: High Efficiency Multimode C-Band Feeds

Post by elko » Thu Sep 15, 2016 8:52 pm

Wow! Thanks for the info tek2000. I'll have to review the properties of circular waveguides some more before I can comment, but this is the first time I have seen someone make the connection between the fields in the focal plane and those supported by guides and it makes perfect sense!

I studied the Birkhill scalar some more and it looks like he varied the dimensions of the chokes too. The Chaparral rings all have the same depth. The more I look into this stuff, the more it looks to me like a black art!

Foxcreek
TVRO Guru
TVRO Guru
Articles: 0
Posts: 233
Joined: Mon Dec 15, 2014 11:15 am
Been thanked: 1 time

Re: High Efficiency Multimode C-Band Feeds

Post by Foxcreek » Thu Sep 15, 2016 11:18 pm

elko.

By all means please give us a report on Mr. Birkhills response to
your inquiry.

Thanks in advance......... this is like talking to GOD !

foxcreek :cool2

elko
TVRO Guru
TVRO Guru
Articles: 0
Posts: 213
Joined: Sat Aug 30, 2014 11:02 pm

Re: High Efficiency Multimode C-Band Feeds

Post by elko » Fri Sep 16, 2016 6:26 pm

Foxcreek wrote:elko.

By all means please give us a report on Mr. Birkhills response to
your inquiry.

Thanks in advance......... this is like talking to GOD !

foxcreek :cool2
He has not replied yet. :verysad

Foxcreek
TVRO Guru
TVRO Guru
Articles: 0
Posts: 233
Joined: Mon Dec 15, 2014 11:15 am
Been thanked: 1 time

Re: High Efficiency Multimode C-Band Feeds

Post by Foxcreek » Sat Sep 17, 2016 1:12 pm

elko,

Another way to contact Steven J. Birkill is via the Radio Society Of Great Britain.

( RSGB ) http://www.rsgb.org


foxcreek :cool2

elko
TVRO Guru
TVRO Guru
Articles: 0
Posts: 213
Joined: Sat Aug 30, 2014 11:02 pm

Re: High Efficiency Multimode C-Band Feeds

Post by elko » Sun Sep 18, 2016 9:03 pm

I checked RSGB but Steve's contact info isn't listed anywhere. I also checked RWT (Steve's company) but that place looks abandoned. I think it is safe to say that Steve is MIA!

Post Reply

Return to “Feed Systems”