3115 - ETS-Lindgren Antennas

3115 Spec Sheet

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Technical Specifications

Double Ridged Guide Antenna 750 MHz - 18 GH

Extra Specifications
New, Uniform Gain, Individually Calibrated, Two Year MFG Warranty, Low VSWR, Power Handling Capability - 500 W,

Product Description

ETS-Lindgren 3115

Double-Ridged Guide Antenna 

Ultra Broadband

The Model 3115 Double-Ridged Guide Antenna sweeps from 750 MHz to 18 GHz without stopping for band breaks, making it ideal for automated testing. It has the widest usable frequency range of any antenna in its class, with no performance degradation from high order modes.

Power Input

The Model 3115 Double-Ridged Guide Antenna uses a Type N precision connector and accepts up to 500 watts of continuous input power. The antenna's high gain and low VSWR over its operating frequency translates into efficient amplifier use and higher field strengths.


An antenna constructed to maximize structural integrity is better able to maintain its electrical properties. The benefits are better measurement repeatability, lower uncertainty values and longer calibration validity.

Constructed of powder coated aluminum plate, the 3115 Double-Ridged Guide Antenna will provide years of trouble-free indoor and outdoor service. This antenna is small and portable with a length of 24.4 cm (9.6 in). This antenna includes a 1/4" x 20 tripod mount.

Standard Configuration

  • Antenna
  • Mounting Bracket drilled accepts an ETS-Lindgren or other tripod mount with standard 1/4 in x 20 threads.
  • Individually calibrated at 1 m per SAE ARP 958. Actual factors and a signed Certificate of Calibration Conformance provided.


  • ETS-Lindgren Tripod. Several nonmetallic, non-reflective tripods for use at EMC test sites.

Electrical Specifications

Frequency Minimum750 MHz 
Frequency Maximum18 GHz 
ConnectorsType N (f) 
Impedance (Nominal)50 Ω 
Maximum Continuous Power500 W 
Pattern Typedirectional 

Physical Specifications

Height15.9 cm   (6.26 inches) 
Length27.9 cm   (10.98 inches) 
Weight1.8 kg   ( 3.97 lb ) 
Width24.4 cm   (9.61 inches) 


Expanded Uncertainty Values for Antenna Factors: SAE, ARP 958 1M1-18 GHz+/- 0.3 dB