| Home |
| Search |
| Today's Posts |
|
#36
|
|||
|
|||
|
I have succeeded in using EZNEC to model a coil sans
reflected current. Eliminating the reflected current clearly shows the phase shift of the forward current through the coil. I modeled a 75m Texas Bugcatcher coil terminated in its characteristic impedance of 2745 ohms at its self-resonant frequency of 7.96 MHz which essentially eliminated the reflected current. The 90 degree phase shift at self-resonance is clearly visible. That EZNEC file can be downloaded from: http://www.qsl.net/w5dxp/coil505.EZ Switch from 7.96 MHz to 3.8 MHz and change the load from 2745 ohms to 1975 ohms. The phase shift through the coil on 75m is clearly ~38 degrees. I compiled the forward current magnitude and phase into an EXCEL file and generated the graphics for the self-resonant frequency of 7.96 MHz. That file can be downloaded from: http://www.w5dxp.com/coil505.xls -- 73, Cecil http://www.w5dxp.com |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| Gaussian antenna aunwin | Antenna | |||
| Gaussian equilibrium | Antenna | |||
| Gaussian law and time varying fields | Antenna | |||
| A gaussian style radiating antenna | Antenna | |||
| FA: ELGENCO 602A GAUSSIAN NOISE GENERATOR- Weird! @$10 | Equipment | |||