^^%

^ESASSrf 14th

ANNUAL

T • H

OHIOSKIEUNIVERSITY

Meeting and Symposium

ANTENNAMEASUREMENT

TECHNIQUES ASSOCIATION

Columbus, Ohio October 19-23, 1992

Togo

ElectroScience Laboratory • Dept. of Electrical EngineeringThe Ohio State University UB/TIB Hannover 89

113 879 822

Table of Contents

The AMTA Hi

AMTA 1992 Officers iv

Corporate Vendors v

Future Meetings & Hosts vi

Distinguished Achievement Award vii

SESSION I: ANTENNA MEASUREMENTS 1-1

Time Domain Characterization of UWB Antennas 1-3

J.S. Gwynne & J,D. Young, Ohio State University, Columbus, Ohio

Measurement Distance Effects on Sum and Difference Patterns 1-9

R.C. Hansen, R.C. Hansen, Inc., Tarzana, CA

Measurements with a Superconducting Array Antenna 1-15

J.P. Kenney, L.D. Poles, k J.S. Herd, Rome Laboratory, Hanscom AFB, MA

Measurement Techniques for Active Antenna Systems Using Broadband

Waveforms 1-18

J.S. DeRosa, Rome Laboratory, RL/ERPE, Griffiss AFB, NY

Inverse Displaced Phase Center Antenna for Aircraft Motion

Emulation 1-24

H.M. Aumann, J. Ward, k F.G. Willwerth,

MIT, Lincoln Laboratory, Lexington, MA

Measurements for the Verification of Antenna Temperature Calculations

for Reflector Antennas 1-30

K.M. Lambert, Analex Corp., Brook Park, OH k

R.C. Rudduck, Ohio State University, Columbus, OH

Calibration of Mismatch Errors in Antenna Gain Measurements 1-35

J. McLaughlin, R. Shoulders, Hewlett-Packard Company, Santa Rosa, CA

ix

Log Periodic Antenna as Standard Gain Antenna 1-41

J.R. Tighe, S. Bradley, Synthesizers Ltd, Riverside, CA, k

J. Granados, New Mexico State Univ., Las Cruces, New Mexico

SESSION II: RCS MEASUREMENTS AND METHODS - I 2-1

A Full RCS Calibration Technique Using a Dihedral Corner Reflector 2-3

J.-R. Gau k W.D. Burnside, Ohio State University, Columbus, Ohio

Measurements and Comparisons of RCS under Planar and CylindricalIllumination 2-9

C.R. Birtcher, CA. Balanis, Arizona State Univ., Tempe, Arizona, k

V.J. Vokurka, Eindhoven Univ., The Netherlands

60-GHz Dynamic RCS Doppler Measurements of Projectiles 2-15

T.T. Webster, System Planning Corp., Arlington, VA

Measured and Computed RCS of Generic Aircraft-Like Targets 2-19

S.R. Mishra, C.L. Larose, David Florida Lab., Canada k

C.W. Trueman, S.J. Kubina, Concordia Univ., Canada

RCS Measurements of Canonical Objects on an Ogival Ground Plane 2-25

W. Nagy k G. Fliss, Environmental Research Institute of Michigan, Ann Arbor, MI

SESSION III: RCS MEASUREMENTS AND METHODS - II 3-1

Vibration Induced Distortion on RCS Measurements 3-3

C. Shenefelt, Science Applications International Corp, Arlington, VA

Applicability of Maximum Entropy Methods to RCS Analysis 3-9

A. Bati, D. Mensa, K. Vaccaro, Naval Air Warfare Center, Pt. Mugu, CA

A Comparative Study of MUSIC and ESPRIT Methods in ScatteringAnalysis 3-10

M.M. Giray, Royal Military College, Canada, k

S.R. Mishra, David Florida Laboratory, Canada

Reconstruction of Far-Field RCS from the RCS Measured in Near Field..3-16

S. Shammas, S. Shochat, S. Hendler, k H.Wineberg,Israel Aircraft Industries, Israel

x

SESSION IV: COMPACT RANGES -I 4-1

A Hologram Type of Compact Antenna Test Range 4-3

J. Tuovinen, Univ. of Massachusetts, Amherst, MA,A. Vasara, Helsinski Univ. of Technology, Finland, k

A. Raisanen, Univ. of Massachusetts, Amherst, MA

Characterizing Compact Range Performance for Space Communication

Antenna Applications 4-9

S. Brumley, Boeing Defense and Space Group, Philadelphia, PA

Estimation of RMS Surface Error in Compact Range Reflectors 4-15

I.J. Gupta, S.H. Suleiman, k W.D. Burnside,Ohio State University, Columbus, OH

Implementation Considerations for a Compact Range Array Feed 4-21

J.P. McKay, Y. Rahmat-Samii, k F.M. Espiau,

University of California at Los Angeles, Los Angeles, CA

SESSION V: COMPACT RANGES - II 5-1

Study of a Broadband Feed for a Large Compact Range (Defocussed) 5-3

J. Matis, McDonnell Douglas Technologies, Inc., San Diego, CA

The Semi Compact Range and Its Evolution as a Fast Near-Field

Technique for Millimeter-Wave Applications 5-7

K.S. Farhat, ERA Technology Ltd., UK,J.C. Bennett, A.J.T. Whitaker, Univ. of Sheffield, UK, k

N. Williams, ERA Technology Ltd., UK

Evaluating Compact Range Chamber Performance in CSIST 5-13

D.-C. Chang, R.-C. Liu, I.-J. Fu, k T.-Z. Chang,

Chung Shan Institute of Science and Technology, Taiwan, R.O.C.

Synthesis Method of a Compact Range Feeder from a Given Field

Distribution in the Quiet Zone 5-19

J.E. Caballero Herrero k C. Martin Pascual, TeDeCe, Madrid, Spain

xi

An Ultra-Wide Bandwidth Compact Range Feed Antenna 5-23

A.L. Sinopoli, W.D. Burnside, Ohio State University, Columbus, OH k

M.C. Gilreath, NASA, Hampton, VA

A Software Package for Imaging Compact Ranges Using Field

Probe Data 5-28

S.T. McBride k J.L. Bradberry, Georgia Tech Research Institute, Atlanta, GA

Small Compact Range Rolled Edge Reflector for Multi-Beam

Applications 5-34

Dr. M. Winebrand, Orbit Advanced Technologies, LTD, Israel

Recent Developments in Large Compact Range Design 5-39

J.D. Huff, J.H. Cook, Jr., k B.W. Smith, Scientific-Atlanta, Inc., Atlanta, GA

SESSION VI: IMAGING 6-1

A High Resolution Imaging Radar for Ground-Based DiagnosticApplications 6-3

D.J. Blejer, S.M. Scarborough, C.E. Frost, k H.R.Catalan,MIT Lincoln Lab., Lexington, MA

An Instrumentation Radar System for Use in Dynamic SignatureMeasurements 6-4

C.T. Nadovich, J.F. Aubin, k D.R. Frey, Flam k Russell, Inc. Horsham, PA

Dynamic Air-To-Air Imaging Measurement System 6-11

R. Harris, R. Redman, B. Freburger, METRATEK Inc. Falls Church, VA, k

J. Hollis, The Northrop Corp.

A Portable 3D SAR RCS Imaging System 6-17

G. Bruce Melson k D.R. Vanderpool, GE Aircraft Engines, Cincinnati, OH

ISAR Imaging of Aircraft-In-Flight Using a Ground-Based Radar 6-22

A. Jain k I. Patel, Hughes Aircraft Co., Los Angeles, CA

Super Resolution Radar Target Imaging of Realistic Targets 6-28

E.K. Walton, I.J. Gupta, M.W. Tu, k A. Moghaddar,Ohio State University, Columbus, OH

xii

High Resolution Radar Imagery Using Parametric Modeling and

Data Extrapolation 6-33

A. Moghaddar k I.J. Gupta, Ohio State University, Columbus, OH

Radar Cross Section Matching of Various Conic Base Closures UsingHigh Resolution ISAR Imagery 6-39

D.W. Cooper, Sandia National Laboratories, Albuquerque, NMJ.C. Davis, Information Systems and Research, Inc. Fairfax, VA

Target Positioning Error Effects on RCS Magnitude and Phase

Responses in ISAR Data 6-44

G. Fliss, I. LaHaie, k W. Nagy, Environmental Research Institute

of Michigan, Ann Arbor, Michigan

SESSION VII: RANGE MULTIPATH AND PHASED

ARRAY TESTING - I 7-1

Anechoic Chamber Diagnostic Imaging 7-3

G. Hindman k D. Slater, Nearfield Systems, Carson, CA

Range Multipath Cancellation through Signal Processing 7-9

B. Himed, P.H. Stockman, k D.R. Miedaner,Advanced Technology, Inc., Syracuse, NY

Evaluating Near-Field Range Multi-Path 7-15

G.F. Masters, Nearfield Systems, Carson, CA

Improving Source Detection in Spherical Probing 7-16

D.N. Black, E.B. Joy, M.G. Guler, k R.E. Wilson,

Georgia Tech School of Electrical Engineering, Atlanta, GA

Generating Linear Probing Data from Spherical Probing Data 7-22

R.E. Wilson, D.N. Black, E.B. Joy, k M.G. Guler,

Georgia Tech School of Electrical Engineering, Atlanta, GA

SESSION VIII: RANGE MULTIPATH AND PHASED

ARRAY TESTING - II 8-1

Far-Field Spherical Microwave Holography 8-3

M.G. Guler, E.B. Joy, D.N. Black, k R.E. Wilson,

Georgia Institute of Technology, Atlanta, GA

xiii

Phased-Array Testing and Diagnostics Using Planar Near-Field

Scanning 8-8

K. MacReynolds, A.G. Repjar, D.P. Kremer, k N. Canales,

National Institute of Standards and Technology, Boulder, CO

Noise Increase in Phased Array Antenna 8-14

S. Ohmori k H. Wakana, Communications Research Lab., Tokyo

Application of Planar Near Field Measurement Techniques for LargePhased Array Testing 8-18

S. Christopher, M.S. Easwaran, S.S. Rao, A. Kaul, k K.M. Balakrishnan,Electronics k Radar Development Establishment, India

A Certification Plan for a Planar Near-Field Range Used for

High-Performance Phased-Array Testing 8-24

M.H. Francis, A.G. Repjar, k D.P. Kremer,National Institute of Standards and Technology, Boulder, CO

SESSION IX: INSTRUMENTATION 9-1

Stereo Optical Tracker for Compact Range Models 9-3

W.D. Sherman, T.L. Houk, J.M. Saint Clair, P.F. Sjoholm, k M.D. Voth,Boeing Defence k Space Group, Seattle, WA

Field Probe for the USAEPG Compact Range 9-9

0. David Asbell k J. Mark Hudgens,George Tech Research Institute, Atlanta, GA

Productivity Gains Using Multiple-Channel, Multiple-FrequencyMeasurement Techniques for Testing the E2C Antenna 9-13

J. Scherer, R. Magatagan, J. Miller, G. Amaral, Loral Randtron Systems, kJ. Swanstrom, Hewlett-Packard, Santa Rosa, CA

Instrumentation: More Speed! 9-19

S.R. Gibson, Crosspoint Associates, Santa Rosa, CA

The Last Traveling Wave Tube Amplifier 9-25

F.A. Miller, Quarterwave Corp., Rohnert Park, CA

xiv

SESSION X: NEAR FIELD — METHODS, FACILITIES, DESIGNAND INSTRUMENTATION - I 10-1

'

Near-Field to Far-Field Transformation Using an Equivalent MagneticCurrent Approach 10-3

P. Petre k T.K. Sarkar, Syracuse University, Syracuse, NY

Theoretical Comparison of Modal Expansion and Integral EquationMethods for Near-Field to Far-Field Transformation 10-8

P. Petre k T.K. Sarkar, Syracuse University, Syracuse, NY

A Practical Technique for Near Field Antenna Testing 10-13

H. Tobin, J. Simmers, k P. Franchi,USAF Rome Laboratory, Hanscom AFB, MA

Accurate Planar Near-Field Probe Correction Using Dual-Port

Circularly-Polarized Probes 10-17

J.R. Guerrieri, D.T. Tamura, k A.G. Repjar,National Institute of Standards and Technology, Boulder, CO

Principle of the Three-Cable Method for Compensation of Cable

Variations 10-26

D.W. Hess, Scientific-Atlanta, Inc., Atlanta, GA

An Implementation of the Three Cable Method 10-32

O.M. Caldwell, Scientific-Atlanta, Inc., Atlanta, GA

On the Design Aspects of Planar Near Field Measurement System 10-38

S. Christopher k S.S. Rao,Electronics k Radar Development Establishment, India

Design Considerations for a Planar Near-Field Scanner 10-44

J.H. Pape, J.D. Huff, &: A.L. Wilcox, Scientific-Atlanta, Inc., Atlanta, GA

SESSION XI: NEAR FIELD — METHODS, FACILITIES, DESIGN

AND INSTRUMENTATION - II 11-1

Implementation of a Small Planar Near-Field System 11-3

C.B. Brechin k R. Kaffezakis, Scientific-Atlanta, Inc., Atlanta, GA

xv

A Dual-Ported Probe for Planar Near-Field Measurements 11-9

W. Keith Dishman, D.W. Hess, k A. Renee Koster,

Scientific-Atlanta, Inc., Atlanta, GA

Validation Testing of the Planar Near-Field Range Facility

at SPAR Aerospace Limited 11-15

W. Keith Dishman k S.J. Manning, Scientific-Atlanta, Inc., Atlanta, GA

The UCLA Bi-Polar Near-Field Range: Processing Techniques and

Measurement Comparisons 11-21

L.I. Williams, R.G. Yaccarino, k Y. Rahmat-Samii,

University of California, Los Angeles, CA

Speed and Accuracy for Near-Field Scanning Measurements 11-27

D.W. Hess, D.R. Morehead, k S.J. Manning,

Scientific-Atlanta, Inc., Atlanta, GA

Frequency Multiplexed Near-Field Measurements 11-33

G. Hindman k D. Slater, Nearfield Systems, Carson, CA

SESSION XII: EUROPEAN SPACE AGENCY - I 12-1

Quasi Real Time Antenna Testing by Means of a 2D Modulated ScatteringArray in the Focal Plane of a Compact Range 12-3

Ph. Garreau, SATIMO, France,K.V. Klooster, ESA-ESTEC The Netherlands, k

J.Ch. Bolomey, SUPELEC, France

'i

Phase Aberrations in the Scanned Quiet Zone of a Front-Fed

Cassegrain Configuration 12-6

PL. Garcia Miiller k M. Marin, I.R.S.A., Madrid

Error Simulation, Estimation and Correction in Probe Corrected

Planar Near Field Antenna Measurements 12-11

A. Lopez, J.L. Besada, k J. Moline,

Polytechnic University of Madrid, Madrid, Spain

On the Measurement of Superstructure Integrated Antennas at VeryLow Frequencies 12-17

J.E. Caballero, M.J. Fernandez, M. Hernanz, k C. Martin,

TeDeCe, Madrid, Spain

xvi

Antenna Testing by Phaseless Near Zone Data: Experimental Results

in the Cylindrical Case 12-22

R. Pierri, 2nd University of Naples, Italy,G. D'Elia k T. Isernia, University of Naples, Italy,G. Leone, University of Salerno, Italy, kP. Langsford, GEO Marconi Research Center, Chelmsford, UK

SESSION XIII: EUROPEAN SPACE AGENCY - II 13-1

Location of Environmental Scatterers on a Microwave Antenna

Test Range 13-3

A. Seville, G.G. Cook, J.C. Bennett, University of Sheffield, England, k

E.H. England, Defence Research Agency, West Sussex, England

Large-Bandwidth Diffraction Mesurements at 54 GHZ Using Both

Time-Domain Filtering And Frequency Smoothing 13-9

G.A.J, van Dooren, M.G.J.J. Klaassen, k M.H.A.J. Herben,

Eindhoven University of Technology, The Netherlands

Refurbishment of the TUD-ESA Spherical Near Field Antenna

Test Facility 13-15

J. Lemanczyk k J.E. Hansen, Technical University of Denmark, Denmark

The Commissioning of a Fast Planar Near-Field Facility 13-21

K.S. Farhat, N. Williams, ERA Technology Ltd.,UK, k

E.H. England, DRA (Maritime Division), UK

SESSION XIV: MEASUREMENT FACILITIES AND

INSTRUMENTATION - I 14-1

Anechoic Chamber Specifications: a Guide 14-3

J.A. Graham, Jr., Rantec Anechoic and Shielding Systems

A High Speed Fiber Optic Remote Receiver Link For Improved Antenna

Measurements 14-4

G.J. Matyas, ORBIT Advance Technologies, Inc. Horsham, PA

A Bistatic RCS Measurement Facility With Imaging Capability 14-5

R. Erickson &; O. Lunden, National Defence Research Establishment, Sweden

xvii

Conversion Of A Sonar Tank Facility To A Near-Field Scanner 14-10

J.E. Friedel, H. Luong, k R.E. Johnson, McClellan AFB, CA

Measurement of the TDRSS Satellite Deployable Reflector Antennas 14-18

G.M. Turner, Harris Corporation, Melbourne, FL

Planar and Spherical Near Field Range of C.A.S.A 14-23

J.L. Besada, J. Molina, A. Valero, L. de la Fuente,

Polytechnic University of Madrid, Spain, k

C.E. Montesano, A.Montesano, Construcciones Aeronauticas, Spain

SESSION XV: MEASUREMENT FACILITIES AND

INSTRUMENTATION - II 15-1

String Support System for RCS Measurements 15-3

L. Snover, Boeing Defense k Space Group, Seattle, WA

Dual Polarized Constant Beamwidth RCS Reflector Antenna 15-9

S. Hendler, Israel Aircraft Industries, Israel,G. Lazar, ECI Telecom Ltd., Petah-Tikva, Israel, k

S. Shammas, Israel Aircraft Industries, Israel

The HP 85330A Multi-Channel, Multi-Event System Controller for HighSpeed Antenna and RCS Measurement Systems 15-14

J. Michael Moorehead, Hewlett-Packard Co., Santa Rosa, CA

Application of the HP 85301A Antenna Measurement System to Receiver

Pattern Measurements 15-20

B. Newton, Thorn EMI Electronics, England, kN. Mott, Hewlett-Packard Company, Santa Rosa, CA

SESSION XVI: MATERIAL 16-1

Broadband RAM Plasma-Absorber System Theory and Experiment 16-3

R.J. Vidmar k D.G.Watters, SRI International, Menlo Park, CA

New Wedge and Pyramidal Absorber Designs 16-9

W.D. Burnside, R.C. Rudduck, k C.-F. Yang, Ohio State University, Columbus, OH

xviii

Equivalent Layer Modeling of Pyramid Absorbers for Field Computationin Anechoic Chambers 16-15

C. Bornkessel, University of Karlsruhe, FRG, kH. Uhlmann, University of Ilmenau, FRG

Measurement of Constitutive Parameters at Microwave Frequencies 16-21

T.P. Fontana, Westinghouse Electronic Systems Group, Minnentonka, Minnesota, k

E.A. Urbanik, Lockheed Sanders, Inc., Nashua, New Hampshire

Surface Resistivity Measurements Using a VHF Ohms Per SquareTest System 16-27

D.R. Jones, R.H. Campbell, k J.E. Lutz, Denmar, Inc. Carson City, NV

Resistivity Measurement Techniques Using a Portable Reflectometer 16-33

J. Lutz, D. Jones, k R. Campbell, Denmar, Inc. Carson City, NV

xix