ARA Active Receive Antenna

The Active Receive Antenna (ARA01) is a compact dipole receive antenna for RF and EMC emissions testing with an antenna factor comparable to a conventional wideband passive antenna such as the Bilog™.

The small size makes the ARA01 particularly suitable for use in anechoic chambers; however it can also be used on an Open Area Test Site (OATS) or at on-site locations.

The ARA01 features two sets of interchangeable Dipole Antenna Elements (DAE). The standard set (DAE01) is optimized for 200 MHz to 1 GHz, with usable sensitivity down to 30 MHz. For improved sensitivity between 30 MHz to 300 MHz, the optional DAE02 set is available.

Key Features

• Stable
• Bilog™ equivalent antenna factor
• 30 MHz to 1 GHz range
• Compact and portable
• Low cost

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Features/Applications

Features

Stable

• Repeatable measurements

Bilog™ equivalent antenna factor

• Please see Output Measurements Graphs

30 MHz to 1 GHz range

• Most commonly used EMC measurement range

Compact and Portable

• Measurements in confined spaces
• Measurements where equipment must be hand carried
• Field testing

Low cost

• Affordable measurement systems

Applications

• Radiated emissions measurements in a confined area
• Low cost alternative to passive wideband antenna
• Portable measurement systems

Specifications

Frequency Range

• 30 MHz to 1 GHz (200 MHz to 1 GHz optimum) using DAE01 antenna elements
• 30 MHz to 300 MHz (optimum) using DAE02 antenna elements

Output connector

• 50 Ω BNC jack

Dynamic range

• 90 dB

1dB compression

• 15.4 dBm / 35.5 mW / 1.33 V (in a 50 Ω system)

Antenna factor

• See Output Measurements tab

Temperature stability

• <1 dB, at an ambient temperature of  5 °C to 45 °C

Time stability

• Typically <1 dB over a 12 month period

Dimensions

• 34 mm × 34 mm × 150 mm (168 mm including connector) excluding dipole elements

Weight

• 0.39 kg (including battery)

Power supply

• Single 9 V battery (PP3 or equivalent)

Operating time

• 6.5 hours typical with alkaline cells

Indicators

• Power on, low battery

Kits

Standard Order Kits

ARA01KIT01 – Standard ARA01 active receive antenna kit with pair of 200 MHz to 1 GHz antennas

Parts included

• ARA01 Active receive antenna
• 2 × DAE01 – 100 mm long antenna elements
• CAL08 – antenna factors, 30 MHz to1 GHz
• Alkaline battery
• Case

Accessories

DAE01  – 200 MHz to 1 GHz (optimum) set of 100 mm long antenna elements

DAE02  – 30 MHz to 300 MHz (optimum) set of 270 mm long antenna elements

 

Manufacturer's Calibrations

CAL08 –  Antenna factor

• 30 MHz to 1 GHz, derived from a calibrated standard

Typical Output Measurement Graphs