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Model 3148B

Log Periodic

Dipole Array Antenna

User Manual

Содержание 3148B

Страница 1: ...Model 3148B Log Periodic Dipole Array Antenna User Manual ...

Страница 2: ...S Lindgren L P does not convey any license under its patent rights or the rights of others Copyright 1999 2008 by ETS Lindgren L P All Rights Reserved No part of this document may be copied by any means without written permission from ETS Lindgren L P Trademarks used in this document The ETS Lindgren logo is a trademark of ETS Lindgren L P Revision Record MANUAL 3148 Part 399239 Rev D Revision Des...

Страница 3: ...ifications 13 Electrical Specifications 13 Physical Specifications 13 4 0 Mounting Instructions 15 Using Included Mounting Adapters 15 Using the Stinger Mount 18 Additional Mounting Options 19 5 0 Application 23 Emissions and Immunity 23 Operation 24 6 0 Typical Data 27 Antenna Factor 27 Gain 28 VSWR 29 Half Power Beamwidth 30 7 0 Typical Radiation Patterns 31 400 MHz 31 500 MHz 32 600 MHz 32 700 ...

Страница 4: ...iv 1100 MHz 35 1200 MHz 35 1300 MHz 36 1400 MHz 36 1500 MHz 37 1600 MHz 37 1700 MHz 38 1800 MHz 38 1900 MHz 39 2000 MHz 39 Appendix A Warranty 41 ...

Страница 5: ...tions could result in minor personal injury and or property damage Included text gives proper procedures Warning Denotes a hazard Failure to follow instructions could result in SEVERE personal injury and or property damage Included text gives proper procedures See the ETS Lindgren Product Information Bulletin for safety regulatory and other product marking information ...

Страница 6: ...vi This page intentionally left blank ...

Страница 7: ...irement and has better than 20 dB cross polarization rejection below 1000 MHz The constant gain of the antenna yields an antenna factor which varies linearly with frequency as shown in Typical Data on page 27 The variation is smooth therefore accurate interpolation of performance between specified frequency points is simple The Model 3148B is constructed of lightweight corrosion resistant aluminum...

Страница 8: ...in This tripod can support up to an 11 8 kg 26 0 lb load Model 7 TR Constructed of PVC and fiberglass components providing increased stability for physically large antennas The unique design allows for quick assembly disassembly and convenient storage Allows several different configurations including options for manual or pneumatic polarization Quick height adjustment and locking wheels provide ea...

Страница 9: ...uct Information Bulletin included with your shipment for the following Warranty information Safety regulatory and other product marking information Steps to receive your shipment Steps to return a component for service ETS Lindgren calibration service ETS Lindgren contact information ...

Страница 10: ...10 Introduction This page intentionally left blank ...

Страница 11: ...See the Product Information Bulletin included with your shipment for information on ETS Lindgren calibration services Replacement and Optional Parts Following are the part numbers for ordering replacement or optional parts for the Model 3148B Log Periodic Dipole Array Part Description Part Number Antenna Element 375 14 4 inches 105567 1 Antenna Element 375 16 4 inches 105567 2 Antenna Element 250 ...

Страница 12: ...ement 187 1 6 inches 105569 4 Antenna Element 187 1 86 inches 105569 5 Antenna Element 187 2 16 inches 105569 6 Antenna Element 187 2 50 inches 105569 7 Antenna Element 187 2 89 inches 105569 8 Antenna Element 187 3 32 inches 105569 9 Polarizing Mounting Adapter 100989 Thread Insert 105861B For additional optional mounting hardware see Additional Mounting Options on page 19 Service Procedures For ...

Страница 13: ...um Continuous Power 1 kW Peak Power 1 3 kW Impedance 50 Ω Symmetry 0 5 dB Cross Polarization Rejection Better than 20 dB below 1000 MHz Connector Type N female Physical Specifications Height without bracket assembly 6 667 cm 2 625 in Width at widest point 85 09 cm 33 50 in Length including stinger 86 677 cm 34 125 in Weight 2 0 kg 4 5 lb ...

Страница 14: ...14 Specifications This page intentionally left blank ...

Страница 15: ...dic Dipole Array ships with these mounting adapters 100989 Polarizing Mounting Adapter with 7 8 14 thread receptacle 105861B 1 4 20 Thread Insert To use these adapters to mount the Model 3148B to a tripod or tower 1 Located on the bottom of the polarizing adapter is a 7 8 14 thread receptacle if you need to convert to a 1 4 20 receptacle insert the 1 4 20 thread insert into the polarizing adapter ...

Страница 16: ...e mounting bracket on the antenna 4 Slide the mounting bracket onto the polarizing adapter with the polarizing adapter placed between the shoulders of the mounting bracket 5 Thread the mounting knob through the mounting bracket then through the polarizing adapter and finally through the hex nut 6 Tighten the mounting knob to secure the antenna ...

Страница 17: ...Mounting Instructions 17 Shown mounted onto a 4 TR ...

Страница 18: ...na directly to an ETS Lindgren 7 TR Tripod Positioner or mast Additional hardware is required to use the stinger to mount the Model 3148B to a mast For information on ordering optional mounting hardware contact the ETS Lindgren Sales Department Do not use the stinger to mount the Model 3148B onto a 4 TR tripod ...

Страница 19: ...nal Mounting Options 4 TR MOUNTING OPTIONS Following are additional options for mounting the Model 3148B onto an ETS Lindgren 4 TR tripod Contact the ETS Lindgren Sales Department for information on ordering optional mounting hardware ...

Страница 20: ...R Tripod Positioner Contact the ETS Lindgren Sales Department for information on ordering optional mounting hardware Mast refers to 2070 Series 2075 and 2175 Antenna Towers 7 TR refers to 109042 106328 and 108197 booms 109042 boom Straight boom for general antenna mounting on a 7 TR 106328 boom Offset boom for general antenna mounting on a 7 TR with pneumatic or manual polarization 108197 boom Cen...

Страница 21: ...NTING OPTIONS Following are additional options for mounting the Model 3148B onto a 2x2 boom Contact the ETS Lindgren Sales Department for information on ordering optional mounting hardware 2x2 boom refers to a typical 2 inch by 2 inch boom ...

Страница 22: ...22 Mounting Instructions This page intentionally left blank ...

Страница 23: ...Application 23 5 0 Application Emissions and Immunity The antenna label on the Model 3148B Log Periodic Dipole Array marks the centerline and tip of the antenna indicating where to perform measurements ...

Страница 24: ... taken to ensure that no part of the dipole elements is in contact with the tripod or tower particularly in vertically polarized tests Where possible run the feed cable straight at least one meter or more back from the Model 3148B before dropping vertically For emissions measurements electric field strength in db V m is obtained from E dBV m V dBV AF dB1 m α dB V the receiver or spectrum analyzer ...

Страница 25: ...plane is illuminated according to the 0 6 dB uniform field specifications It is usually necessary to place RF absorbing material between the EUT and antenna to suppress ground plane reflection to ensure the field uniformly or to conduct the immunity test in a fully lined anechoic room In general closer distances require less power to create a given field strength ...

Страница 26: ...26 Application This page intentionally left blank ...

Страница 27: ...Typical Data 27 6 0 Typical Data Antenna Factor ...

Страница 28: ...28 Typical Data Gain ...

Страница 29: ...Typical Data 29 VSWR ...

Страница 30: ...30 Typical Data Half Power Beamwidth ...

Страница 31: ...Typical Radiation Patterns 31 7 0 Typical Radiation Patterns 400 MHz ...

Страница 32: ...32 Typical Radiation Patterns 500 MHz 600 MHz ...

Страница 33: ...Typical Radiation Patterns 33 700 MHz 800 MHz ...

Страница 34: ...34 Typical Radiation Patterns 900 MHz 1000 MHz ...

Страница 35: ...Typical Radiation Patterns 35 1100 MHz 1200 MHz ...

Страница 36: ...36 Typical Radiation Patterns 1300 MHz 1400 MHz ...

Страница 37: ...Typical Radiation Patterns 37 1500 MHz 1600 MHz ...

Страница 38: ...38 Typical Radiation Patterns 1700 MHz 1800 MHz ...

Страница 39: ...Typical Radiation Patterns 39 1900 MHz 2000 MHz ...

Страница 40: ...40 Typical Radiation Patterns This page intentionally left blank ...

Страница 41: ...ETS Lindgren warranty for your Model 3148B Log Periodic Dipole Array DURATION OF WARRANTIES FOR MODEL 3148B All product warranties except the warranty of title and all remedies for warranty failures are limited to two years Product Warranted Duration of Warranty Period Model 3148B Log Periodic Dipole Array 2 Years ...

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