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Sorry, I should have been more clear. Not a fixed butler matrix but a
device with solid state, programmable, phase shifters, 0 - 360 degrees.
It's a way to create multiple phy channels and affect and vary the off
diagonal elements of a MIMO H-matrix using conducted parts.
We tried adding in an external butler matrix in the past, but could not notice
any useful difference. Possibly
we didn't have the right use case.
Typically we are competitive on price for full testing solutions, but you can
get stand-alone attenuators
cheaper from specialized vendors. Happy
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The four part attenuator part would be more interesting to me if it also
had a solid state phase shifters. This allows for testing 2x2 MIMO testing
per affecting the spatial stream eigen vectors/values.
Bob
PS. The price per port isn't competitive. Probably a good idea to
Hello,
I am interested to hear wish lists for network testing features. We make test
equipment, supporting lots
of wifi stations and a distributed architecture, with built-in udp, tcp, ipv6,
http, ... protocols,
and open to creating/improving some of our automated tests.
I know Dave has some
Hi
I agree on Sebastian’s points on DOCSIS being able to offer this 100/100
service, as well as what the most recent version of what DOCSIS can do..
In terms of DOCSIS 3.1 it supports “High Split” upstream where signals operate
up to 204MHz (from current limits of 42MHz, 65MHz or 85MHz). This
