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Active Receive Antennas
     

 

EMC Test Design   Eurofins York Logo

 

     
Active Receive Antennas

 

Active Receive Antenna 

Model: ARA01

30MHz - 1GHz

 

Active Receive Antenna

 

Data

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.

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.

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.

The Active Receive Antenna has been designed as a compact emissions antenna. 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).

 
Specifications
Frequency Range 30MHz (200MHz optimum) to 1GHz using DAE01 100mm long antenna elements
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 with EDC01
Operating Time 6.5 hours typical with alkaline cells
Indicators Power on - green LED
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
ARA01KIT02 Enhanced ARA01 active receive antenna kit with pair of 200MHz to 1GHz and pair of 30MHz to 300MHz antennas and external power adaptor ARA01 Active receive antenna Pair of DAE01 antenna elements Pair of DAE02 antenna elements EDC01 External power adaptor CAL08 antenna factors Alkaline battery

Accessories

Accessory Part Nunber

Description

Antennas DAE01 200MHz to 1GHz (optimum) 100mm long antenna elements
DAE02 30MHz to 300MHz (optimum) 290mm long antenna elements
External power supply adaptor EDC01 External power adaptor - injects ARA supply onto coax cable
Tripod Adaptor TRA01 Tripod adaptor with ARA01 mounting brackets

 

Typical Output Measurement Results

Antenna Directional Sensitivity

Antenna Factor with DAE01 Antenna Elements

 Antenna Factor with DAE02 Antenna Elements

 Antenna Factors

 

Active Broadband Isotropic Antenna (30 MHz to 6.0 GHz)

 

EMC Test Design

 

Omnifield Antenna®

 

30 MHz to 6 GHz

 

Active Receive Antenna OFA-G 

 

A unique broadband active E- field isotropic (omni-directional) antenna for RF spectrum monitoring

 

Wide dynamic field range 1 mV/m - 60 V/m

 

 

Data 

 


 

 

Active Receive Antenna with Laptop

  

 Spectrum Analyzer

 

 

But Online

 

Omnifield Antenna®  Model: OFA-G

 

Antenna Sensor: Isotropic 3-Axis.

Frequency range: 30 MHz - 6 GHz.

Dynamic range:  1 mV/m - 60 V/m)

Dimensions of the Antenna:
Antenna Unit (LxD) 9.0" x 2.25".
Power Unit: (LxWxD) 3.75" x 2.25" x 1.25"

Rechargeable battery operation time: 10 hours.

Warranty and Calibration Period - 1 year.

Calibration certificate, traceable to UK NPL, with
measured linearity, antenna factors (AF) and rotational isotropicity.

 

Standard Antenna Set Includes:

 

Antenna unit OFA-G.
Power unit PU-5G.
Custom 5 ft. ferrite beaded RF cable.
AC/DC universal plug-in charger.
Table tripod with mounting clip.
Users Manual with documentation.
Rugged foam padded storage case.

 

Accessories

Extendable 5 ft. tripod.

Custom length RF cables.

Extended maintenance contract.

 

Omnifield Antenna® consists of three parts: antenna head, handle and power unit. Antenna head and handle comprise a single module while power unit is detachable from the handle to allow convenient storage in the supplied rugged plastic case. For normal operation handle must be connected to the power unit to provide power to the antenna head.  Antenna head has 3 antennas positioned normal to each other.

 

Signals from each antenna are combined and amplified to allow utput signal of Omnifield Antenna® to be proportional to the absolute value of the field regardless of the field direction.  Power unit contains the rechargeable battery and connectors for the antenna and output cable. Ferrite beads, located on this cable, decouple the antenna from spectrum  analyzer and reduce the effects of this analyzer on measured field. This cable also allows operator to have freedom to place the antenna in right position either on non-metal table tripod (supplied with every system) or onto optional 5 feet adjustable tripod.

Spectrum analyzers with options compatible with Omnifield Antenna™

Manufacturer

Models

Options

Comments

HP

8590E-8595E

HP 85712B

EMC personality card

HP

8596E

HP 85712D

EMC personality card

Agilent

N9340B

-

PC software for field strength measurements is standard.

Aeroflex

2399C

 

Option 13

 

PC software.

R&S

FSH3, FSH6

 

PC software is standard.



Selective Field Analyzer

 SFA-G

SFA-G Spectrum Analyzer


Data

 

Selective Field Analyzer SFA-G

Active broadband isotropic antenna combined with portable USB powered spectrum analyzer. OFA-G antenna has frequency response independent of antenna or electric field orientation. It offers broad dynamic range for the variety of RF regulatory, safety, EMC, wireless and telecommunications applications. Spectrum analyzer SA-S/J displays the frequencies and field strength of selected signals, allowing all results to be viewed and stored on PC.



Spectrum Analyzer
 SA-S/J

S: 1Hz - 4.2GHz
J: 100KHz - 12.4GHz

SA-S Picture

Data

Includes a High Dynamic Range Measuring Receiver

0.25 dB relative accuracy

0 dBm to -125 dBm, 150 KHz to 1 GHz

0 dBm to -115 dBm, 1 GHz to 4.4 GHz

Adjustable digital audio filters

Accurate AM and FM measurements.

Powerful suite of software for real time signal processing for Windows is included.

 

 

Specification of USB Spectrum Analyzers

We offer two models of USB spectrum analyzers:

SA-S: 1 Hz – 4.4 GHz and

SA-J: 100 KHz – 12.4 GHz.

Dynamic range: -151 to +10 dBm.

BW: 0.1 Hz-250 KHz.

Dimensions: 7″x3″x1″.

Power: Powered by USB port.

Warranty and Calibration Period:  1 year.


Last Updated: April 26, 2018
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