DescriptionThe AH-8055 is a broadband, linearly polarized High-Gain Horn Antenna, operating with very high efficiency over the frequency range of 800 MHz to 5 GHz. The frequency range can be extended up to 6.5 GHz with some sacrifice in efficiency.

ConstructionThe AH-8055 is designed to be extremely durable, making it an ideal choice for daily use in laboratory environments, both indoors and outdoors, and even under continuous exposure to extreme weather conditions. The antenna is constructed using high grade aluminum with a corrosion resistant conductive coating.

Com-Power Corporation 19121 El Toro Rd., Silverado, California 92676 (949) 459-9600 www.com-power.com

ApplicationThe AH-8055 is intended primarily for use as a transmitting antenna for establishing radiated RF fields for product immunity tests. Its high isotropic gain produces high field strengths with relatively low input power. It is capable of handling continuous power levels up to 450 Watts, yielding field strengths as high as 1,670 V/m @ 1 meter. A graph showing typical field strength values vs frequency, based on the isotropic gain and 450 Watts input power is given on the following page.The antenna can also be use as a receiving antenna for electromagnetic interference (EMI) testing; however, its focused beamwidth at higher frequencies makes it less than ideal when the antenna height is scanned up to 4 or 6 meters, without changing the angle of the antenna. Notwithstanding the above applications, the AH-8055 can also be used for chamber characterizations or comparisons, shielding effectiveness tests of large enclosures or chambers, field monitoring, site surveys, or other general purposes.

MountingDue to size and weight of the AH-8055, care should be taken to ensure it is properly supported. The antenna has two 1/4-inch x 20 mounting holes, for vertical and horizontal mounting, respectively. Com-Power’s AT-220 Tripod is the recommended support for the AH-8055.

Features • Frequency Range

800 MHz to 5 GHz (useable up to 6.5 GHz)

• High Isotropic Gain >10 dBi (800 MHz) increasing to >20 dBi (3 to 5 GHz)

• Transmit & Receive Capabilities

• Individual Calibration Included

• Three-year Standard Warranty

CalibrationEach antenna is individually calibrated per ANSI C63.5 or SAE ARP958 with NIST traceability. The calibration data and certificate is provided. Recognized ISO 17025 accredited calibration is available upon request.

High-Gain Horn AntennaAH-8055

(W)18” (45.7 cm)

(H)17.2” (43.7 cm)

(D)27.2”

(69.1 cm)

Rev. D05.17

Com-Power Corporation 19121 El Toro Rd., Silverado, California 92676 (949) 459-9600 www.com-power.com

Specifications

All specifications are subject to change without notice. All values are typical, unless specified.

Field Strength with 450W Input Power

Product Name High-Gain Horn Antenna

Frequency Range 800 MHz to 5 GHz (useable up to 6.5 GHz)

Polarization Linear

Nominal Impedance 50Ω

Power Handling (CW) 450 Watts (continuous)

Connector N-type (female)

Antenna Factor 13.8 to 24.2 (average: 19.7) [dB(m-1)]

Isotropic Gain 10.6 to 23.1 (average: 18.8) dBi

VSWR 1.17 to 2.88 (average: 1.69) :1

Return Loss 6.3 to 22 (average: 13) dB

Radiated Field Strength see graph below

Specifications FCC, CISPR, EN, ETSI, FAA, MIL-STD-461, SAE, etc.

Dimensions (H x W x D) 17.2” x 18” x 27.2” [43.6 x 45.6 x 69 cm]

Weight 20.5 lbs. [9.3 kg]

PAM-103A Preamplifier (1 MHz to 1 GHz)

AT-220 Antenna Tripod

Also Available:AH-826 Horn Antenna (18-26.5 GHz)

AHA-118A Active Horn Antenna (1-18 GHz)AL-100, ALC-100, ALP-100 Log Periodic Antennas

Accessories availablefrom Com-Power:

SPA-800 Spectrum Analyzer

10

100

1,000

10,000

0.5 1.5 2.5 3.5 4.5 5.5 6.5Frequency (GHz)

Field

Str

engt

h (V

/m)

Ant. Input (W) * 30 * [numeric] Gain

Test Distance (m)Field Strength (V/m) =

1 meter

3 meters

Forward Power Levels

0.01

0.1

1

10

100

1000

0.5 1.5 2.5 3.5 4.5 5.5 6.5

Frequency (GHz)

Forw

ard

Pow

er (W

atts

)

150 V/m @ 1m

200 V/m @ 1m

3 V/m @ 3m

10 V/m @ 3m

Field Strength (V/m)2 * Test Distance (m)2

30 * [numeric] Isotropic Antenna GainFwd. Power (Watts) =

VSWR/Return

1

2

3

4

5

6

7

0.5 1.5 2.5 3.5 4.5 5.5 6.5Frequency (GHz)

VSW

R (x

:1)

-5

0

5

10

15

20

25

Return Loss (dB)

Impedance/Phase

0

50

100

150

200

250

300

0.5 1.5 2.5 3.5 4.5 5.5 6.5Frequency (GHz)

Impe

danc

e (Ω

)

-225

-175

-125

-75

-25

25

75

Phase (degrees)

Antenna Factors / Isotropic Gain

10

20

30

40

50

60

70

0.5 1.5 2.5 3.5 4.5 5.5 6.5

Frequency (GHz)

Ante

nna F

acto

r [dB

(m-1

)]

-30

-20

-10

0

10

20

30

Isotropic Gain (dBi)

-3 dB [Half-Power] Beamwidth

0

10

20

30

40

50

60

0.5 1.5 2.5 3.5 4.5 5.5 6.5

Frequency (GHz)

-3 d

B Be

amw

idth

(deg

rees

)

H-Plane

E-Plane

High-Gain Horn AntennaAH-8055

Rev. D05.17