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Let's start all over on this.
1. You have a transmission line of Zo= 1 - j1 2. Zo* = 1 + j1 3 Short the end of the line 4. By the classic formula RC= (0 - (1 - j1))/(0 + (1 - j1)) = -(1 - j1)/(1 - j1) = -1 5. By Besser's formula RC = (0 - (1 + j1))/(0 + (1 - j1)) which is (-1 -j1)/(1 - j1) 6. The above is SQRT(2)/_-135 / SQRT(2) /_-45 = 1/_-90 7. Note that RC has angle -90, not 180. 8. Reflected voltage is now (V+) x (1/_-90). This is in quadrature with V+, not in opposition with. 9. This won't meet the boundary condition that ( V+) + (V-) = 0 10. You can use a different phase angle for Zo if you like, but the only Zo phase angle that will give you RC = 1/_180 is 0. Tam/WB2TT |
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