[time-nuts] Transmission line question

[WB6BNQ]

Don,

If it were a perfect world and the two 100 Ohm loads were perfect (no
reactances), then you will have a complete transfer of power from the 50 Ohm
source divided equally into the two 100 Ohm loads without reflections.

Bill....WB6BNQ

Don Otknow wrote:

> Just for the record I meant pin as in the metal contact of a device, not a
> PIN diode. So I need the impedance the pin "see's" (that of the transmission
> line(s)) to be the same as the output impedance of the pin.
>
> Here's an extrapolation on the original question. If this is a high speed
> digital signal, with frequency elements ranging from say 133 MHz to 1GHz,
> then what I am really worried about, given the trace lengths (maybe 2 cm
> each way) is the high frequency components getting reflected or not sent
> down the line properly. If my source impedance from the the device is 50
> ohms, the lines are each 100 ohms, and the terminations at each end are 100
> ohms (probably AC terminated, but let's just say 100 ohms for simplicity),
> am I setting myself up for the best possible signal integrity?
>
> Here's a primitive diagram of the setup
>
>                                  100 ohm line      100 ohm line
> 100 ohm term. to gnd _________________________100 ohm termination to gnd
>                                                        |
>                                                        |
>                                                        | 50 ohm source
>                                                        |
>
> Donald
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