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#1
August 25th 06, 03:37 PM
posted to rec.radio.amateur.antenna
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Mismatched Zo Connectors
The fundamental partial differential equations of transmission lines
are - - dv/dz = R + L*di/dz - di/dz = G + C*dv/dz where volts v and current i are incremental functions of distance and time, and z is incremental distance along line. Everything else follows. Similar equations can be written in terms of frequency. It is often easier to think in terms of Time and Distance rather than Frequency and Impedance. ---- Reg. |
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#2
August 26th 06, 05:41 AM
posted to rec.radio.amateur.antenna
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Error correction
A correction - insert dt instead of dz.
The fundamental partial differential equations of transmission lines are - - dv/dz = R + L*di/dt - di/dz = G + C*dv/dt where volts v and current i are incremental functions of distance and time, and z is incremental distance along line. Everything else follows. Similar equations can be written in terms of frequency. It is often easier to think in terms of Time and Distance rather than Frequency and Impedance. ---- Reg. |
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#3
August 26th 06, 04:17 PM
posted to rec.radio.amateur.antenna
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Error correction
Reg Edwards wrote:
A correction - insert dt instead of dz. Another correction is in order. The resistive term should be i(z) * R and the conductance term should be v(z) * G. The fundamental partial differential equations of transmission lines are - - dv/dz = R + L*di/dt - di/dz = G + C*dv/dt where volts v and current i are incremental functions of distance and time, and z is incremental distance along line. bart |
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#4
August 28th 06, 08:50 PM
posted to rec.radio.amateur.antenna
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Error correction
Bart Rowlett wrote:
Reg Edwards wrote: A correction - insert dt instead of dz. Another correction is in order. The resistive term should be i(z) * R and the conductance term should be v(z) * G. The fundamental partial differential equations of transmission lines are - - dv/dz = R + L*di/dt - di/dz = G + C*dv/dt where volts v and current i are incremental functions of distance and time, and z is incremental distance along line. bart Good to know you're still lurking around here, Bart! Glad somebody still keeps track of units. ;-) 73, ac6xg |
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#5
August 27th 06, 12:36 AM
posted to rec.radio.amateur.antenna
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Error correction
Reg Edwards wrote:
A correction - insert dt instead of dz. Another correction is in order. The resistive term should be i(z) * R and the conductance term should be v(z) * G. The fundamental partial differential equations of transmission lines are - - dv/dz = R + L*di/dt - di/dz = G + C*dv/dt where volts v and current i are incremental functions of distance and time, and z is incremental distance along line. bart |
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