Appendix A Example of a Solenoid Design.pdf

Radio Frequency Circuit Design. W. Alan Davis, Krishna Agarwal
Copyright  2001 John Wiley & Sons, Inc.
Print ISBN 0-471-35052-4 Electronic ISBN 0-471-20068-9
APPENDIX A
Example of a Solenoid Design
The design of a solenoid inductor was described in Chapter 2. An example
for a 100 nH solenoid design at 200 MHz is shown below using the program
SOLENOID where the bold type indicates user inputs. After initial values for
the solenoid are given, the form length and number of integral turns are modi-
fied, but the form diameter remains unchanged. The interwire capacitance, C, the
self-resonant frequency, Fres, and the Q are calculated.
Frequency in Hz for Q calculation =
Geometry -> Inductance, type <G>
Inductance -> n, the number of turns, type <L>
L
Desired inductance, L (H), initial form Length,
Form Diameter - inches, Initial value f