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If that's not a typo (did you mean 800 to 890?) you aren't going toFor my project I search this component: a RF cicrulator with this band from
80 MHz to 890 MHz.
"Pazzeo" <matteo.silvestrin@virgilio.it> wrote:
For my project I search this component: a RF cicrulator with this band
from
80 MHz to 890 MHz.
If that's not a typo (did you mean 800 to 890?) you aren't going to
find a circulator with greater than 10:1 bandwidth. 2:1 maybe, but
not 11:1
What kind of power do you need?
OK, but that's a very wideband device, and most devices like that areNo I'm secure infact the band of my signal goes from 80 MHz to 890 Mhz.
I don't think that such a device _can_ exist, as a circulator is basedDo you think that this component isn't in trade?
Well, you could use a bunch of bandpass filters and combiners to driveWhat do I use for substitute the circulator ??
Sure, variable airline. Kinda physically large, so you might end upI resolve my problem , i have replace the circulator. But now I have a new
problem. I must introduce a variable continous delay time about 2-6 ns. Is
there a solution?
BTW: What did you replace the circulator with?I resolve my problem , i have replace the circulator.
"Pazzeo" <matteo.silvestrin@virgilio.it> wrote:
I resolve my problem , i have replace the circulator. But now I have a new
problem. I must introduce a variable continous delay time about 2-6 ns. Is
there a solution?
Sure, variable airline. Kinda physically large, so you might end up
stacking more than one of them, but no biggie.
"Pazzeo" <matteo.silvestrin@virgilio.it> wrote:
I resolve my problem , i have replace the circulator.
BTW: What did you replace the circulator with?
An airline is a physically rigid (metal) piece of coax with goodBut I don't understand
How do you connect a power combiner to a phase shifter to get an RFI have used a power combinator with a phase shifter !!
"Pazzeo" <matteo.silvestrin@virgilio.it> wrote:
But I don't understand
An airline is a physically rigid (metal) piece of coax with good
dimensional tolerances and an air dielectric that's usually used as an
impedance reference (in TDR systems and such).
A variable airline is one that has sliding inner and outer contacts
(like a trombone) that allow you to physically lengthen and shorten
the device without changing it's impedance.
"Pazzeo" <matteo.silvestrin@virgilio.it> wrote:
I have used a power combinator with a phase shifter !!
How do you connect a power combiner to a phase shifter to get an RF
circulator with a bandwidth of more than 10:1?
Is this a homework assignment?
Because you keep asking more questions and ignoring queries about whatNo it is not a homework assegnement...Why??
"Pazzeo" <matteo.silvestrin@virgilio.it> wrote:
No it is not a homework assegnement...Why??
Because you keep asking more questions and ignoring queries about what
you're trying to do, how you 'solved' the original problem, and what
kind of device this might be used in.
No big deal, but half-duplex conversations bore me quickly...
Hmm, sorry, I'm just not getting it. Maybe try some of the amateurI substituted a circulator with a power
combiner. The power combiner have 2 port in and 1 out. For my project in the
income of one port I insert a phase shifter, so my simulation work fine.
But now I don't realize the circuit because now I have the problem of
variable delay.
"Pazzeo" <matteo.silvestrin@virgilio.it> wrote:
I substituted a circulator with a power
combiner. The power combiner have 2 port in and 1 out. For my project in
the
income of one port I insert a phase shifter, so my simulation work fine.
But now I don't realize the circuit because now I have the problem of
variable delay.
Hmm, sorry, I'm just not getting it. Maybe try some of the amateur
radio newsgroups, lots of really clever folks there...