Com-Power AC-220 CombiLog Antenna, 20 MHz to 2 GHz

Key Features At A Glance

• Wide frequency range: 20 MHz to 2 GHz as receive antenna for emissions; 80 MHz to 2 GHz as transmit antenna for immunity
• Linearly polarized hybrid antenna combining log periodic and biconical element designs in a single structure
• Power handling of 500 Watts continuous CW for radiated immunity test applications
• Individual calibration per ANSI C63.5 with NIST traceability included; ISO 17025 accredited calibration available upon request
• N-type female connector with 50 ohm nominal impedance
• Hinge-equipped mounting assembly with 1/4-inch x 20 mounting hole for quick polarization changes on tripod or mast
• Three-year standard warranty

The Com-Power AC-220 CombiLog is a broadband, linearly polarized hybrid antenna covering 20 MHz to 2 GHz as a receiving antenna and 80 MHz to 2 GHz as a transmitting antenna. The hybrid design combines log periodic elements with low-frequency bow-tie elements on the same feed structure, with common-mode chokes installed to reduce common-mode currents on the outer conductor of the coaxial feed line. By combining log periodic and biconical antenna geometries into a single assembly, the AC-220 covers a frequency range that would otherwise require four separate conventional antennas.

The AC-220 is suitable for use as an EMI test antenna for qualification-level regulatory compliance measurements including FCC, CE, RTCA DO-160, FDA, and SAE testing across the 20 MHz to 2 GHz range. As a transmitting antenna driven by an RF power amplifier, the AC-220 establishes the calibrated radiated RF fields used for product immunity testing from 80 MHz to 2 GHz. Beyond emissions and immunity work, the antenna also supports test site comparisons, shielding effectiveness testing of large enclosures, field monitoring, and site surveys.

Product Core & Specifications

Specification	Value
Product Name	CombiLog Antenna
Frequency Range (Receive - Emissions)	20 MHz to 2 GHz
Frequency Range (Transmit - Immunity)	80 MHz to 2 GHz
Polarization	Linear
Nominal Impedance	50Ω
Power Handling (CW)	500 Watts (continuous)
Connector	N-type (female)
Antenna Factor	6.2 to 27.7 (average: 16.9) [dB(m-1)]
Isotropic Gain	-18.5 to 9.2 (average: 3.0) dBi
VSWR	1.06 to 3.93 (average: 1.78) :1
Return Loss	4.5 to 29.8 (average: 12.5) dB
Specifications	FCC, CISPR, EN, ETSI, etc.
Dimensions (H x W x D)	50" x 27.6" x 38" [127 x 70.1 x 96.5 cm]
Weight	10.5 lbs. [4.8 kg]
Warranty	Three-year Standard Warranty
Calibration	Individually calibrated per ANSI C63.5 with NIST traceability

Important: 500 Watts continuous CW power handling. Maximum input power must not be exceeded during immunity testing.Important: Each antenna is individually calibrated per ANSI C63.5 with NIST traceability. The calibration data and certificate is provided. Recognized ISO 17025 accredited calibration is also available upon request.Important: The mounting assembly is equipped with a standard 1/4-inch x 20 mounting hole, which allows it to be affixed to a tripod or antenna mast. Com-Power's AT-812 Tripod and AM-400 Antenna Mast are the recommended supports for this antenna (sold separately).Recommended supports: pair the AC-220 with the Com-Power AT-812 Tripod or AM-400 Antenna Mast for stable mounting and rapid polarization changes during emissions and immunity testing.

Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.