Part III Table of Contents

Section

Preface

LIST OF ILLUSTRATIONS

Abstract

I.

INTRODUCTION

II.

STRUCTURE MODELING GUIDELINES

1. Wire Modeling
2. Surface Modeling
3. Modeling Structures Over Ground

III.

PROGRAM INPUT

1. Comment Cards (CM,CE)
2. Structure Geometry Input
   • Wire Arc Specification(GA)
   • End Geometry Input (GE)
   • Read NGF File (GF)
   • Helix - Spiral Specification (GH)
   • Coordinate Transformation (GM)
   • Generate Cylindrical Structure(GR)
   • Scale Structure Dimensions (GS)
   • Wire Specification (GW)
   • Reflection in Coordinate Planes (GX)
   • Surface Patch (SP)
   • Multiple Patch Surface (SM)
   • Examples of Structure Geometry Data
3. Program Control Cards
   • Maximum coupling Calculation (CP)
   • Extended Thin-Wire Kernel (EK)
   • End of Run (EN)
   • Excitation (EX)
   • Frequency (FR)
   • Additional Ground Parameters(GD)
   • Ground Parameters (GN)
   • Interaction Approximation Range (KH)
   • Loading (LD)
   • Near Fields (NE,NH)
   • Networks (NT)
   • Next Structure (NX)
   • Print Control for Charge on Wires (PQ)
   • Print Control for Current on Wires (PT)
   • Radiation Pattern(RP)
   • Transmission Line (TL)
   • Write NGF File (WG)
   • Execute (XQ)
4. SOMNEC Input for Sommerfeld/Norton Ground Method
5. TheNumerical Green's Function Option

IV

NEC OUTPUT

• Examples 1 through 4
  • Example 1Model,Results
  • Example 2Model,Results
  • Example 3Model,Results
  • Example 4Model,Results
• Example 5, Log-Periodic Antenna
  • Model,Results
• Example 6, Cylinder with Attached Wires
  • Model,Results
• Example 7 and Example 8, Scattering by a Wire and Aircraft
  • Model,Results
• Example 9, Scattering by a Sphere
• Example 10, Monopole on Radial Wire Ground Screen

V.

EXECUTION TIME

VI.

Differences between NEC-2, NEC-1, AND AMP2

VII.

FILE STORAGE REQUIREMENTS

VIII.

ERROR MESSAGE

REFERENCES

Contributors to the web edition.

---