Double Ridge Guide Horn Antenna SAS-574

  • Double Ridge Guide Horn Antenna Double Ridge Guide Horn Antenna
  • DRG Horn with preamplifier DRG Horn with preamplifier


High gain, low VSWR, and rugged design make this dual ridge horn antenna excellent for both immunity and emissions testing.


  • 18 GHz to 40 GHz
  • Individually Calibrated at 1 Meter Horizontal Polarity
  • Improved Precision machined, Rugged Construction
  • Three Year Warranty

CAGE Code: 54656
NSN: 5985-01-659-8423
Schedule B: 8529.10.9000

Product Details

The A.H. Systems' Double Ridge Guide Horn Antenna is a broadband antenna that offers excellent performance over the frequency range of 18 GHz to 40 GHz. High gain, low VSWR, and input handling capability up to 10 watts make this horn antenna an excellent general use performer.

The SAS-574 DRG Horn manufacturing process changed from dip brazing to 100% machining. This allows for a more accurate and repeatable antenna performance that is critical at the higher frequencies.

* Calibration data and certificate at 1 meter horizontal polarity included

Antenna Specifications

SAS-574 Double Ridge Guide Horn Antenna
Frequency Range: 18 GHz - 40 GHz
Antenna Factor: 40.3 to 41.1 dB/m
Gain: 15 to 21.2 dBi
Maximum Continuous Power: 10 Watts
Max Radiated Field: 100 V/M
Impedance: 50 ohm
VSWR: 1.2:1 (1.5:1 max)
Connector: 2.9mm female
Mounting Base: ¼ - 20 Thread, female
Physical Dimensions:
Length: 3.0 in. (7.6 cm)
Width: 1.18 in. (3 cm)
Height: 1.68 in. (4.2 cm)
Weight: 0.2 lbs. (0.09 kg)

Typical Antenna Data

SAS-574 Double Ridge Guide Horn Antenna

Additional Resources

SAS-574 Double Ridge Guide Horn Antenna

Product Datasheet

Operation Manual

E-Plane Beamwidth patterns

H-Plane Beamwidth Patterns

Field intensity calculation

Field intensity calculation (xls download)

Typical conversion formulas

Antenna Beamwidth Coverage Calculations

Shipping Information:
Carton size: 13" x 10" x 5"
Shipping Weight: 2 lbs.
* These are approximate dimensions and will vary depending on other items ordered.

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SAS-574 Double Ridge Guide Horn Antenna
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California Proposition 65

You may have heard that everything gives you cancer – if you live in California. The reason is that it is a California state law that requires businesses to provide reasonable warning about the use of any chemicals the state has decided could cause cancer, birth defects, or other reproductive harm. The list of chemicals and substances is extensive - currently totaling approximately 900.

For those consumers who live outside of California, you are not accustomed to seeing Prop 65 Warnings everywhere you go to shop, eat, buy groceries, fix your car, and are even posted at amusement parks.

A.H. Systems has been manufacturing antennas since 1974. We have no reported cases of our products causing harm or danger to anyone. We believe in the safety of our products and we meet all the applicable safety requirements. We are unable to test against the 900+ chemicals listed for Prop 65 and to 100% certainty, and therefore, in an abundance of caution, we have placed the warning on our products to be in compliance with this California regulation. You will also see the Prop 65 warning on products that you buy outside of California, because we are unable to determine our products’ final retail destination.

For any questions you may have about our products and California Prop 65, please contact us at