40 GHz Double Ridge Guide Horn Antenna

Model: SAS-574

18 GHz - 40 GHz

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

Features

Seamless operation from 18 GHz to 40 GHz, covering key K and Ka-band applications.
Individually Calibrated at 1 Meter Horizontal Polarity
Optimized for maximum signal efficiency with a typical VSWR of 1.2:1, minimizing reflection and measurement uncertainty.
Improved Precision machined, Rugged Construction
Three Year Warranty

Datasheet Manual

Availability currently in stock

The availability information was last updated on 10-Jul-26. This availability is subject to prior sale.

High-Precision Performance for K and Ka-Band Testing

The A.H. Systems SAS-574 is a high-performance, broadband double ridge guide horn antenna engineered for the demanding 18 GHz to 40 GHz frequency range. Whether you are performing electromagnetic interference (EMI) emissions testing or radiated immunity measurements, the SAS-574 delivers the high gain and low VSWR required for accurate, repeatable results.

Now manufactured using a 100% precision machining process (transitioned from traditional dip brazing), this antenna offers enhanced structural integrity and superior electrical consistency—critical factors when operating at millimeter-wave frequencies.

* Calibration data and certificate at 1 meter horizontal polarity included

Talk to an A.H. Systems antenna specialist today to find out how an attached battery powered preamplifier option will improve your testing capabilities.

Included parts:

SAS-574 Antenna
bracket for mounting with 1/4-20 threads
Antenna Calibration Manual

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.

Specifications

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)

The information provided below is for general informational purposes only and should not be relied upon for any specific purpose.

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