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Related Manuals for ETS-Lindgren 3148
Summary of Contents for ETS-Lindgren 3148
- Page 1 Model 3148 & 93148 Log-Periodic Dipole Array Antenna MANUAL © EMC TEST SYSTEMS, L.P. – SEPTEMBER 2002 REV C – PN 399239...
- Page 2 MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA EMC Test Systems, L.P. reserves the right to make changes to any products herein to improve functioning, design, or for any other reason. Nothing contained herein shall constitute EMC Test Systems, L.P. assuming any liability whatsoever arising out of the application or use of any product or circuit described herein.
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Page 3: Table Of Contents
MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA Table of Contents INTRODUCTION..........................1 STANDARD CONFIGURATION ......................2 OPTIONS ............................... 2 MOUNTING INSTRUCTIONS......................3 ..........................3 NTENNA UPPORTS EMISSIONS AND IMMUNITY ......................4 APPLICATION............................5 TYPICAL DATA............................ 7 SPECIFICATIONS ..........................10 ............................10 LECTRICAL ............................ - Page 4 MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA © EMC TEST SYSTEMS, L.P. – SEPTEMBER 2002 REV C – PN 399239...
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Page 5: Introduction
VSWR characteristics are obtained throughout the operating frequency range (See Model 3148 VSWR data in the “Typical Data” section of this manual). The precise design of the feed and positioning of the elements on the boom yield optimum phase relationship. -
Page 6: Standard Configuration
Standard Configuration MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA STANDARD CONFIGURATION • Antenna • Manual • Individually calibrated at 1m per SAE ARP 958 and 3 and 10 m per ANSI C63.5. Actual antenna factors and a signed Certificate of Calibration Conformance included. -
Page 7: Mounting Instructions
This can be accomplished by threading the mounting knob or threaded connector into the adaptor. To mount the 3148 antenna, slide the adapter between the shoulders of the mounting bracket on the antenna. One side of the mounting bracket is fitted with a hex nut that in conjunction with ©... -
Page 8: Emissions And Immunity
Emissions and Immunity MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA the knob provided will secure the assembly together. Thread the knob through the mounting bracket and adapter so that the knob threads through the hex nut last. Carefully tighten the knob to secure the antenna in place. -
Page 9: Application
(immunity) or receiver (emissions). Both horizontal and vertical polarization are easily accomplished when the Model 3148 is mounted on a tower or tripod. Contact with any metallic or non-metallic structure can capacitively load the antenna which may cause inconsistent results. Therefore, care must be taken to ensure that no part of the dipole elements are in contact with the tripod or tower, particularly in vertically-polarized tests. - Page 10 MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA Actual transmitted field strength should be verified using an ETS-Lindgren Model HI-6005 Electric Field Probe or equivalent. For IEC/EN 31000-4-3 type testing, the antenna tip can be placed at any distance between 1 and 3 meters from the EUT as long as the front face plane is illuminated according to the –0, +6 dB...
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Page 11: Typical Data
MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA Typical Data TYPICAL DATA © EMC TEST SYSTEMS, L.P. – SEPTEMBER 2002 REV C – PN 399239... - Page 12 Typical Data MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA © EMC TEST SYSTEMS, L.P. – SEPTEMBER 2002 REV C – PN 399239...
- Page 13 MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA Typical Data © EMC TEST SYSTEMS, L.P. – SEPTEMBER 2002 REV C – PN 399239...
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Page 14: Specifications
Specifications MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA SPECIFICATIONS ELECTRICAL Frequency Range 200 MHz – 2 GHz VSWR Ratio 1.2:1 average 2.0:1 maximum Maximum Continuous Power 1 kW Peak Power 1.3 kW Input Impedance (Nominal) 50 ohms Symmetry +/- 0.5 dB... -
Page 15: Warranty
MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA Warranty WARRANTY EMC Test Systems, L.P., hereinafter referred to as the Seller, warrants that standard EMCO products are free from defect in materials and workmanship for a period of two (2) years from date of shipment. Standard EMCO Products include the following:...
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