The Active Receive Antenna 01

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Other Instrumentation:

Comb Generator Emitters:
- CGE01, CGE02, CGE03
Comparison Noise Emitters:
- CNE III, CNE V, CNE V+
Harmonics & Flicker Generator
Cable Coupling Clamp

The Active Receive Antenna has been designed as a pre-compliance emissions antenna, with a performance comparable to a conventional wideband passive antenna such as the Bilog™. The small size makes it particularly suitable for use in anechoic chambers, however it can also be used on an Open Area Test Site (OATS).

The unit is powered from a single PP3 battery. A green LED indicates that the antenna is active, a red LED indicates that the battery is low and should be recharged or replaced. There is also an external DC option where the DC is supplied via the RF cable using the EDC01.

There are two sets of Dipole Antenna Elements (DAE) which can be used. The unit is supplied with one set as standard (DAE01). For higher sensitivity at the low frequencies DAE02 should be used.

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Stable performance: Repeatable measurements
Bilog™ equivalent performance: Accurate results
30MHz to 1GHz range: Most commonly used measurement range
Compact and Portable: Measurements in confined spaces; Measurements where equipment must be hand carried; Field testing
Battery powered: Mains power not required for measurements
Low cost: Affordable measurement systems

Applications

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

Specifications

Specifications
Frequency range	30MHz (200MHz optimum) to 1GHz using DAE01 100mm long antenna elements
Frequency range	30MHz to 300MHz (optimum) using DAE02 290mm long antenna elements
Output connector	50Ω BNC socket
Output VSWR	1.5:1
Dynamic range	90dB
1dB compression	15.4dBm ≡ 35.5mW ≡ 1.33V (in a 50Ω system)
Antenna factor	See graph below
Temperature stability	5°C to 45°C: <1 dB
Time stability	Typically <1 dB over a 12 month period
Dimensions	34mm × 34mm × 150mm (168mm including connector) excluding dipole elements
Weight	0.39kg (including battery)
Power supply	1 × 9V battery (PP3 or equivalent) or 9V-12V 70mA external power supply (not supplied)
Operating time	6.5 hours typical with alkaline cells
Indicators	Power on - green LED
Indicators	Battery low - red LED

Standard Order Kits

Part Number	Description	Parts Included
ARA01KIT01	Standard ARA01 active receive antenna kit with pair of 200MHz to 1GHz antennas	ARA01 Active receive antenna 2× DAE01 antenna elements CAL08 antenna factors Alkaline battery

Accessories

Accessory	Part Nº	Description
Antennas	DAE01	200MHz to 1GHz (optimum) 100mm long antenna elements
Antennas	DAE02	30MHz to 300MHz (optimum) 290mm long antenna elements
Tripod Adaptor	TRA01	Tripod adaptor with ARA01 mounting brackets

Output Measurement Results

Type	Order Nº	Description
Antenna Factor	CAL08	30MHz to 1GHz antenna factor derived from GTEM measurements against a known standard

Typical Output Measurement Results

Antenna Factor with DAE01 Antenna Elements

Antenna Factor with DAE02 Antenna Elements

Further details can be obtained from:

York EMC Services Ltd
University of York
Heslington
York
YO10 5DD

Tel: +44 (0) 1904 324440
Fax: +44 (0) 1904 324434
E-mail: enquiry@yorkemc.co.uk

Last checked: 2009-May-13

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