ETS-Lindgren's 3126 Series of Precision Reference Sleeve Dipoles are true omnidirectional antennas, having an electric dipole pattern approaching that of a half-wave resonant dipole,​ with typical gains between 1.5 and 2.0 dB. The sleeve dipole design allows the antenna to be end-fed to avoid cable and feedpoint interactions that interfere with the performance of the antenna. Integral quarter wave chokes and/o​​r ferrite loading (depending on frequency range) also help to reduce cable interaction. This design also provides exceptional symmetry (typically better than +/- 0.1 dB (0.2 dB peak-to-null) to meet or exceed CTIA criteria for ripple test antennas.

All 3126 Series Dipoles are designed with a VSWR less than 1.2:1 in at least a +/- 10 MHz band around the labeled center frequency. Gain values and +/- 0.1 dB symmetry certification are provided for a 200 MHz to 300 MHz band (depending on model) centered about the labeled frequency.  This dipole has a typical VSWR <3:1 across this entire band, and may be used for precision range calibrations across the entire band provided appropriate padding (~ 10 dB) is used to minimize possible standing wave effects on cables. The dipoles have a nominal 50 Ω impedance, a maximum continuous transmit power of one watt, and are equipped with a female SMA connector.

The dipoles are calibrated using an A2LA accredited process with a typical measurement uncertainty on the order of +/- 0.2 dB. Gain, VSWR, max. ripple, and measurement uncertainty values are provided with each calibration.

Key Product Information


Specifications Select a tab below for more information



All Models
Impedance (Nominal): 50Ω
Maximum Continuous Power: 1W
VSWR: <3:1 Typical
Connectors: SMA Female
Pattern Type: Omnidirectional
Polarization: Linear
Frequency: corresponds with hyphenated model number

Model
Frequency
3126-450​​450 MHz
​3126-550550 MHz​
3126-700​700 MHz
​3126-722
​722 MHz
​3126-750
​750 MHz
​3126-790​790 MHz
3126-800​​800 MHz
​3126-836
​836 MHz
​3126-850
​850 MHz
3126-860
​860 MHz
​3126-870
​870 MHz
​3126-880
​880 MHz
​3126-900
​900 MHz
​3126-920920 MHz
​3126-950
​950 MHz
​3126-1050
​1050 MHz
​3126-1225
​1225 MHz
​3126-1300
​1300 MHz
​3126-1325
​1325 MHz
​3126-1400
​1400 MHz
​3126-1475
​1475 MHz
​3126-15501550 MHz
​3126-1575
​1575 MHz
​3126-1625
​1625 MHz
​3126-17001700 MHz
3126-1732
​1732 MHz
​3126-1775
​1775 MHz
​3126-1790
​1790 MHz
​3126-1795
1795 MHz​
​3126-1800
1800 MHz
3126-1842
​1842 MHz
​3126-1845
​1845 MHz
​3126-1850
​1850 MHz
​3126-1880
​1880 MHz
​3126-1900
​1900 MHz
​3126-1920
​1920 MHz
​3126-1925
​1925 MHz
​3126-2000
​2000 MHz
​3126-20452045 MHz
​3126-2075
​2075 MHz
​3126-2100
​2100 MHz
​3126-2140
​2140 MHz
​3126-2145
2145 MHz
​3126-2150
​2150 MHz
​3126-2225
​2225 MHz
​3126-2300
​2300 MHz
​3126-2375
​2375 MHz
​3126-2400
​2400 MHz
​3126-2450
​2450 MHz
​3126-2500
​2500 MHz
​3126-2525
​2525 MHz
​3126-26002600 MHz
​3126-2650
​2650 MHz
​3126-2700
​2700 MHz
​3126-2840
​2840 MHz
​3126-2900
​2900 MHz
​3126-36003600 MHz
​3126-5500
​5500 MHz

Model
Diameter ADiameter B
Diameter C
3126-450​ 1.9 cm (0.75 in)
​2.69 cm (1.06 in)
​45.54 cm (17.93 in)
​3126-550
1.9 cm (0.75 in)​2.69 cm (1.06 in)
​45.54 cm (17.93 in)
3126-700​ ​1.9 cm (0.75 in)
​2.69 cm (1.06 in)
​39.17 cm (15.42 in)
3126-800​ ​1.9 cm (0.75 in)
​2.69 cm (1.06 in)
​26.47 cm (10.42 in)
​3126-920
​1.9 cm (0.75 in)
​2.69 cm (1.06 in)
​25.20 cm (9.92 in)
​3126-1225
​1.9 cm (0.75 in)
​2.69 cm (1.06 in)
​23.93 cm (9.42 in)
​3126-1550
​1.9 cm (0.75 in)
​1.9 cm (0.75 in)
​22.58 cm (8.89 in)
​3126-1700
​1.9 cm (0.75 in)
​1.9 cm (0.75 in)
​21.39 cm (8.42 in)
​3126-1800
​1.9 cm (0.75 in)
​1.9 cm (0.75 in)
​20.75 cm (8.17 in)
​3126-2045
​1.9 cm (0.75 in)
​1.9 cm (0.75 in)
​20.12 cm (7.92 in)
​3126-2145
​1.9 cm (0.75 in)
​1.9 cm (0.75 in)
​20.12 cm (7.92 in)
​3126-2450
​1.9 cm (0.75 in)
​1.9 cm (0.75 in)
​19.79 cm (7.79 in)
​3126-2600
1.9 cm (0.75 in)
​1.9 cm (0.75 in)
​19.79 cm (7.79 in)
​3126-3600
​1.9 cm (0.75 in)
​7.62 cm (3.00 in)
​21.11 cm (8.31 in)
​3126-5500
1.9 cm (0.75 in)​7.62 cm (3.00 in)
​21.11 cm (8.31 in)

  • Sleeve Dipole Antenna
  • A2LA Accredited Precision Calibration and Symmetry Certification Including Signed Certification of Calibration
  • Manual


Key Features


  • Meets CTIA +/- 0.1 dB Symmetry Requirement 
  • Precision Gain for Range Calibration 
  • Range of Frequencies to Cover Wireless Device Bands

Literature and Videos


Date Last Updated: Thursday, September 20, 2018
L o a d i n g

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