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Inductor
Design and Analysis
 Inductor
Mathcad Software
1. Circuit Sage's inductor analysis/synthesis tool: lfind.mcd.
2. Download
Mathcad Explorer Free, A free viewier for Mathcad versions 8 and
lower. You can edit, but not save.
3. Mathcad
Tutorial, a good tutorial by Sidney Young and Theresa Julia Zielinski.
4. Valery Ochkov's Book on Mathcad
usage.
5. Information on Mathcad from Mathsoft.
6. Mathcad
routine for calculating on chip spiral inductance by Tom
Weldon's group at UNCC. (tpwspiral.mcd)
7. DEA-CCAT: Finite-element
software in Mathcad.
Inductor
Analysis Tools
1. ASITIC,
Ali Niknejad's free planar structure analysis tool. Great for planar inductors,
capacitors, and substrate coupling analysis.
2. SMIrC
online inductance calculator, a good first pass inductance
calculator
3. Spiral model extraction
(old version) in Excel from
See Guan Huei. Extracts
lumped model from S-parameters. (New version : Excel Smith chart,
SPICE outputs, and transformer-based model)
4. AppCAD, A free
tool, which has a spiral inductor designer, matching, and
transmission line analysis.
5. Jim Hawking's online toriod
calculator.
6. Spiral Inductor Simulation Program
or SISP, a planar EM simulator, like ASITIC, but for Windows.
I think it is around $500-$1k. (Now
Helic)
7. Kansas State's spiral
inductor simulator.
8. FastHenry 3D
inductance simulator. Free. Great for package modeling.
9. GBPPR's air
coil calculator.
10. UMR's online inductance
calculator.
11. UW-Madison's inductance
calculation software. Free.
12. OEA's spiral
inductor design tool.
13.
Inductwise, a
free very fast passive circuit simulator.
14. QuickHenry,
A free inductance/resistance extraction tool.
 Electromagnetic Simulation Software
1. Ansoft
has a set of tools for various types of signal integrity and electromagnetic
problems, including 3D simulation. Ansoft's EM simulators , $42,000
for HFSS.
3. IE3D
from Zeland Software is an integral equation solution for electromagnetic
simulation of circuit and antenna structures.
4. EMSight
is a Microsoft Windows-based Method-of-Moments 3D electromagnetic simulator for
circuit interconnect problems.
5. EMA3D
is a 3D FD-TD electromagnetic simulator for radiation and scattering problems.
6. Agilent/EESof
offers Momentum,
a planar electromagnetic simulator, and HFSS, a three-dimensional
electromagnetic simulation tool. EEsof's EM Simulators ,
7. LINMIC+/N is a mostly
electromagnetics-based Microwave and RF IC Design Suite from AC Microwave.
8. xfdtd from Remcom
is a 3D FD-TD electromagnetic simulator for radiation and scattering problems.
9. Sonnet EM is a
planar electromagnetic simulation tool. great for transmission lines, and it's
free. Sonnet EM simulator,
10. ToyBoxFDTD
is an open source (GPL) 3D FD-TD electromagnetic simulator with PEC boundary
conditions.
11. Radar FDTD
An enhanced version of ToyFDTD with PML boundary conditions.
12. Integrated EM Simulation Software,
software for EM simulation.
13. QuickField, EM/Thermal/Stress
Simulator.
13. Zeland's Fidelity
is a 3-D full wave electromagnetic simulation program for circuit and antenna
applications.
14. OEA's EM
simulators ,
15. Eagleware's EMPOWER.
16. FEMLAB for Matlab:
Finite Element Method.
17. Apsim's
EM Simulators.
18. Faustcorp 's
MEFiSTo 2D(free) and 3D EM Simulators.
19. Applied Wave Research, Microwave Office
20. Arpeggio
, Full-wave EM simulator (free)
21. Ansys's
EM Software.
22. Aplac's FDTD EM Simulator.
23. IFS Pro,
from Interactive Products. A good SPICE output from the simulator.
24. Listing of EM
Software.
25. EM
Routines and Codes, A good collection of RF software
26. UMR's listing of EM
software. A thorough listing. Their other pages are also good.
27. Nice listing of free EM software
on NASA website.
28. WIPL-D,
by Kolundzija et. al., $399.
29. Westbay
Tools, $470.
30. EMPLAN,
A planar EM analysis tool by Kinayman and Aksun, $659.
 Tutorials and Information on
Inductors
1. NEC
Research Index: Lots of papers on inductors.
Extremely good.
2. Magnetics Designer Transformer, Inductor and Choke Design Software
3. How
an inductor works. A low-level physics-based discussion of
inductors.
4. Inductance nags, tools lag in 0.13-micron ICs,
An EE Times article on the difficult task of inductance extraction
from a layout.
5. Self Inductance,
Simple inductance expressions for 19 common structures.
6. Steve Long's article on discrete RF
inductor design.
7. Patrick Yue's
webpage with some information on inductors paper with S.
Wong.
8. A JSSC Paper by IBM on silicon
spiral inductors.
9. Integrated
VCOs paper by TAMU.
10. ESSCIRC paper on on-chip
spiral modeling.
11. Marc Thompson's simplified inductor
calculations.
12. Ali Niknejad's paper on on-chip spiral
modeling.
13. Air-coil
inductance calculations.
14. A good article on inductance
calculation and modeling.
15. Nice MATLAB
code for finding mutual and self inductance of arbitrary
loops.
16. Hyungsuk Kim's good presentation on inductance
extraction and other WISC inductance
publications.
17. Modeling
skin effect in inductors by Ken Kundert.
18. A few simple inductor
equations by rfcafe.
19. Ali Niknejad's papers on inductor
design.
20. Inductance Estimators
, A good survey of
some inductance simulation tools with cost and accuracy
information.
21. ESSCIRC
Website: Many good papers on inductor design. Very useful.
22. MIT's
Electromagnetics class and
Advanced Electromagnetics class and
Electromagnetics Applications class and
Electricity and Magnetism class.
 Websites
with Information on
Inductors
1. General EE
website with some inductor links
Books
on Inductors and Electromagnetics
1. Lumped-Element
RF Circuit Design, Inder Bahl. $100, 1580533094, Artech.
2. Grover, Frederick W. Inductance Calculations (Working
Formulas and Tables), The Instrumentation, Systems, and Automation Society; 1982, ISBN: 0876645570. Highly referenced, but I've heard it is out of
print.
3. Design and Simulation of Inductors, Niknejad, $110, 0792379861, Kluwer
4. Electromagnetics for Engineers, Paul, $108, 0471271802,
Wiley.
5. Numerical Techniques in Electromagnetics, Sadiku, $110, CRC Press, 0849313953
6. Electromagnetics for Engineers, Steven E. Schwarz, 019511597X, Oxford
7. Microwave Circuit Modeling Using Electromagnetic Field
Simulation. Swanson, $125, 1580533086, Artech.
8. Integrated Passive Component Technology, Ulrich et al, $90,
0471244317, Wiley.
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