5G and RF Safety Introduc duction Kevin Ramdas, Ph.D. TelecomTRAIN - - PowerPoint PPT Presentation

5G and RF Safety

Introduc duction

2

TelecomTRAIN Director Humber College Professor

Kevin Ramdas, Ph.D.

RF RF Ener nergy gy in t ter erms of

• f r

radiation

1 2 3

• 1. Higher frequencies
• 2. More base stations
• 3. Beamforming

Wha hat i t is 5G 5G?

Regu egulation

Setting up a Compliance Program: Best Practices

Purpose: To provide important steps to help you establish your RF Safety Awareness program for your organization, which over time, will help you develop a more robust program.

Step 1 – Make it a priority Step 2 - Responsibility Step 3 - Improvement

Step 1 – Make it a priority

Make safety and health your top priority – An employee who feels supported and safe is an engaged employee.

• Be proactive
• Lead by example
• DO NOT rely on service providers
• Establish and exercise a robust program

Step 2: Responsibility

A wireless service provider (WSP) has an overall responsibility to comply with regulatory bodies in maintaining a safe and secure environment. But relying solely on the service provider should not be your responsibility.

• Fully understand RF and it effects.
• Provide training: Set the frequency of your training

(annually or biannually, project base).

• Provide proper PPE to your employees.
• Enforce regulatory bodies’ regulations.
• ALWAYS keep emergency contacts handy.

Step 3: Improvement

There is ALWAYS room for improvement

• Stay informed with technology.
• Keep track of your portfolio and/or inventory.
• Review and update your program accordingly.
• Keep the public informed.

Feel free to contact me: kevin.ramdas@telecomtrain.ca OR https://www.linkedin.com/in/kevinramdas/

10

Thank you!

COMPANY PROPRIETARY

5G and the new challenge!

COMPANY PROPRIETARY

Summary 1- Company overview 2- Introduction to 5 G challenges 3- EMF measurement in the Telecommunication industry

COMPANY PROPRIETARY

23 years

(since 1997)

About Wavecontrol: highlights +60 countries

+3000

Delivered instruments

5 continents ISO 17025

accredited calibration lab

ISO 9001

certified company

Continuous

R+D

+5000

ILAC accredited calibrations

COMPANY PROPRIETARY

17025 Accredited Calibrations

• LabCal Wavecontrol: ISO 17025 Accredited Calibration Laboratory for probes.
• All equipment delivered with accredited calibration
• ILAC calibration accepted Worldwide

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5G Challenges

• Frequency range: 5G will be present in several

new frequency bands:

✓Sub-6GHz (for example 3.5GHz) ✓mm Waves (28, 39 … GHz)

• Wavecontrol has already increased its probe

frequency range up to 60 GHz so it can cover all the next 5G frequency band allocation.

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5G Challenges

• EMF exposure depends even more on

the traffic due to beam sweeping.

• No standardized methods is defined to measure

the EMF exposure. Several methods are under considerations​:

✓Force the antenna under 100% traffic inside the desired beam with a user equipment (UE) ✓Determine or extrapolate the maximum exposure with fast RMS detection.

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EMF measurement in the Telecommunication industry

Following : IEC 62232, ITU-T K.61, etc.

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EMF measurement in the Telecommunication industry

• Properties of EMF in Telecoms Industry
• Field regions (near-field and far-field)
• In near-field, both E and H should be measured
• In far-field, only one is measured. The other can be evaluated

using the formula.

• Measured value can be in field intensity (E/H) or power density

(S) units.

Requirements of Measurement instrument

• Isotropic measurement (preferred)
• Broadband (easier and cheaper) or Narrowband
• Minimum sensitivity = 1 V/m
• Isotropy = < 2 dB, Linearity = less than ± 1/1.5 dB
• Frequency response:
• 900 MHz – 3 GHz = ± 1.5 dB
• Below 900 MHz or Above 3 GHz = ± 3 dB

E/H = Z0 = 377 Ohms (i.e. Impedance of free space)

Standards – IEC 62232 and ITU-T K.61

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Measurement Procedures and Conditions

• Compile all the relevant information of the

measuring site:

• Sources of EMF around site and their characteristics

(frequency, intensity, the type and orientation of the antenna, degree of inclination. etc) for proper positioning (see figure).

• Possible perturbation or interference with

measurement

• Preassessment to locate sensitive areas with maximum

exposure levels (Hotspots).

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Averaging:

• If required, Spatial average should be done at the height of possible human

presence (1.5m , vary between 0 to 2 m)

• Time averaged according to standard used.
• 6 mins, 30 mins or as stated otherwise.

Measurement Procedures and Conditions

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SMP2 – RF Human Exposure Assessment

• Move the SMP2 around and look for the maximum value.
• Place the SMP2 on a tripod at the correct height.
• Press the LOG button. The SMP2 will start measuring for

the measurement time set.

• Find your measurement in MENU -> MEASUREMENT LOG.

Measurement Procedures and Conditions

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PC Software: SMP2 Reader

• Remote control and Measurement
• Using F.O. connection
• Display
• SMP2 parameters
• Real time measurements
• Google map location (if GPS was ON)
• Measurements visualization
• Graph format
• Table format
• Import data from SMP2 meter
• Automatic report generator

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• Automatic generated report with info:
• Logo (customizable)
• Used SMP2 + Probe information
• Last automatic screenshot (if activated)
• Measurements settings , date and time
• Results
• Measurements in graph and table format
• Location (if GPS was activated)

PC Software: SMP2 Reader

COMPANY PROPRIETARY

Thank you

HEADQUARTERS Wavecontrol S.L. Carrer de Pallars 65-71 08018 Barcelona (SPAIN)

• Tel. [+34] 933 208 055

USA OFFICE Wavecontrol, Inc Overlook Corporate Center 150 Clove Road, 11th Floor Little Falls, NJ 07424-2138 (USA)

www.wavecontrol.com info@wavecontrol.com