EM-ISight system

EM-ISight Automated Near-Field Scanner

EM-ISight has evolved into a fully automated near-field analysis solution, supporting every phase of the electronic development cycle - from design and validation to testing and certification.

By precisely mapping the decoupled near-field of electronic devices, EM-ISight enables users to pinpoint the root causes of electromagnetic issues with speed and accuracy. Its modular architecture — enhanced by powerful tools like the FFA and USA — expands diagnostic capabilities to address both emission and susceptibility challenges.

Backed by our team’s deep expertise in automation and measurement, EM-ISight delivers a dependable and scalable solution to support your engineering workflows with confidence.

Features:

6-axis robot arm in 3 sizes
Touch detection function
360-degree probe rotation
E- and H- field vector probes
RF-ISight data processing software
Vision system
Compatibility with Spectrum Analyzer, Vector Network Analyzer, Oscilloscope, Signal Generator, Tesla meter, Digital multimeter

“We collaborated with APREL to refine our design validation process, addressing persistent delays in the approval stage for new products. Through consultation with their team, we assessed our laboratory procedures and integrated the EM-ISight into our product development stages. This created a unified platform for sharing results across design teams, enabling us to focus more on innovation and refinement.

By leveraging comprehensive data, we expedited decision-making, reduced costs, and developed customized reports that could be shared with customers more effectively."

Chief scientific officer computing systems design

SYSTEM ELEMENTS AND CONFIGURATIONS

PDF DATASHEET

The integration of a high-resolution vision system streamlines test setup procedures while significantly enhancing the repeatability and reliability of measurement results.
The 10.7-megapixel camera is attached to the robot arm and set to detect the location of a device in the working area providing the system with coordinate data. This information is needed to achieve quick and reliable positioning of a probe during a scan.
With active autofocus function and adjustable picture quality options, the scan time is reduced, and a human-error factor is significantly minimized.

Features:

10.7 MP CCD camera
Low distortion lens with focal length of 7.2 mm
Auto focus of Device Under Test
Automatic import of images to EM-ISight software
Adjustable brightness/contrast/saturation
Auto calibration function utilizes calibration plate

PC Requirements:

Intel core i7-4770HQ CPU@ 2.20GHz
16 GB RAM
Three USB v3.0 ports
Monitor to support 1600x900
- Optional Graphic Card

Robot Type	VP-Standard Reach	VS-Extended Reach	VM-Long Reach
View Height in Z (mm)	300	500	600
Field of view X (mm)	268	447	536
Field of View Y (mm)	192	320	384
Spatial resolution (mm/pixel)	0.069 x 0.069	0.115 x 0.115	0.138 x 0.139

PDF DATASHEET

6GHz scanning system features passive low-Q near-field probes designed to operate across wide bandwidth without interaction with a device. Because the scanning surface is located in the highly reactive region of a source of electromagnetic emission, it is critical to avoid any probe-device interference during the measurement.
Anisotropic nature of the near field with inconsistent wave impedance is addressed through the 360-degree rotation function.
For the microwave frequencies a precise spatial mapping of de-coupled electric and magnetic field distributions is typically achieved at the distance of 0.5 mm for PCBs and at 10 μm for integrated circuits.
There is an option for frequency range extension up to 8 GHz.

System Components:

6-axis robot arm
System controller running WinPro
Workstation
Boundary detection unit (BDU)
Vector probes
- magnetic 2mm-loop Hxy and Hz
- electric Exy and Ez
- SMA connector
6GHz microstrip line
Low noise amplifier (LNA)
Device positioner
RF cables
Vision system

Applications:

Integrated circuits/package, PCB fixtures, memory modules, LCD screens, mobile devices, medical microchips, automotive and avionics cockpit dashboards, streaming devices, printed antenna modules, Wi-Fi and 5G devices…

Set of 6GHz probes

6GHz microstrip line

PDF DATASHEET

Developed by APREL Inc. for T-Coil testing of wireless communication devices (WCD) per ANSI C63.19 2019 standards

Full suite of accessories for certification testing

Backward compatibility with ANSI C63.19 2011 edition

Near-field functionality supports frequencies from 9kHz to 6GHz

Automated tests assess frequency response, quality, and provide detailed test reports

Accessories:

TMFS Magnetic Dipole
Hxy and Hz magnetic-field probes
Audio Data Acquisition Unit (DAQ) (10KHz)
Audio analysis tools

Optional Accessories:

Low noise amplifiers
Extended frequency audio probes
Near-field vector E- and H- probes (support decoupled field measurements)
Additional software features for various frequency ranges and backward compatibility
Helmholtz coil

Probe Type	Frequency	Connector	Application
H-Field XY	100Hz - 20kHz	BNC or SMA	Hearing Aid Compatibility Audio Development Headphone Audio Quality
H-Field Z	100Hz - 20kHz	BNC or SMA	Hearing Aid Compatibility Audio Development Headphone Audio Quality
H-Field XY Vector	100Hz - 200MHz	SMA	Qi Charge Circuits DC/DC Convertors Power Circuits Frequency Oscillators and Induction Circuits Batteries and Connectors
E-Field Vector	200kHz - 200MHz	SMA	Qi Charge Circuits DC/DC Convertors Power Circuits Frequency Oscillators and Induction Circuits Batteries and Connectors

TESLA Module for mT field assessment of permanent magnetic fields and Qi evaluation:

Tesla meter
Hall effect probe

PDF DATASHEET

20 GHz scanning system delivers an exceptionally flat and stable frequency response across the entire 100 MHz to 20 GHz range. This all-in-one setup empowers engineers with robust, high-resolution spatial analysis—streamlining broadband design validation with unmatched precision and efficiency.

Optional multi-span application allows for users to define narrow band width within a brad frequency spectrum.

The 360-degree probe rotation function enables users to explore quasi-static wave fronts and dynamic phase fronts for both electric and magnetic fields in the reactive zone of a device.
Spatial resolution of 0.01 mm enables comprehensive visualization of field distributions with high precision, to help engineers and designers enhance the process of device structural optimization.
Option for frequency range extension up to 26 GHz.

System Components:

6-axis robot arm
System controller running WinPro
Workstation
Boundary detection unit (BDU)
Vector probes
- magnetic field 2mm-loop Hxy and Hz
- electric field Exy and Ez
- connector 2.92mm
20GHz microstrip line
6GHz low noise amplifier (LNA)
- optional 26 GHz LNA
Device positioner
Set of RF cables
- optional phase-matching cables for phase-magnitude measurements
Vision system

Applications:

Integrated circuits and PCB fixtures, memory modules, 5G mobile devices, high-speed switches (Gigabit & beyond), phase array antennas, streaming devices, printed antenna modules

Set of 20GHz probes

20GHz microstrip line

PDF DATASHEET

40GHz scanning system enables engineers to address EMI, RF, microwave, IC, PCB problems for most complex high-speed electronic systems.

Optional multi-span application allows for users to define narrow bandwidth within a broad frequency spectrum.

Measurement results transformed into the real and imaginary parts of complex vectors and exported into XML format, compatible with a simulation software (Ansys), provides a unique solution for advanced analysis.

Our advanced active phase test methodology revolutionizes near-field measurements—unlocking vivid visualization and deeper understanding of complex, dynamic electromagnetic interference. This breakthrough enables high-performance analysis down to the intricacies of multi-layer microchip architectures.

Optional frequency range extension up to 44 GHz.

System Components:

6-axis robot arm
System controller running WinPro
Workstation
Boundary detection unit (BDU)
Vector probes
- magnetic field 2mm-loop Hxy and Hz
- electric field Exy and Ez
- K-type connector 2.92mm
40GHz microstrip line
6GHz low noise amplifier (LNA)
- optional 44 GHz LNA
Device positioner
Set of RF cables
- optional phase-matching cables for phase-magnitude measurements
Vision system

Applications:

Integrated circuits and PCB fixtures, memory modules, 5G-connected devices, high-speed switches (Gigabit & beyond), phase array antennas, streaming devices, printed antenna modules, internet-of-things (IoT) products.

Set of 40GHz probes

40GHz microstrip line

PDF DATASHEET

70GHz scanning system equips engineers with circuit- and system-level visibility to pinpoint and isolate electromagnetic interference across an ultra-wide frequency range. Ideal for early-stage prototyping, it accelerates development cycles and ensures cleaner, more reliable designs from the start.

The 360-degree probe rotation feature delivers precise vector distribution plot for enhanced noise and crosstalk analysis of high-speed designs to optimize signal and power integrity.

Our methodology makes it possible to perform a comprehensive assessment of phase-array antennas operating at frequencies up to 70 GHz transmitting/receiving an ultra wide-bandwidth (up to 2 GHz) modulated signal.

Volumetric scan enables engineers to verify the efficiency of the beam-forming processes for phase-array antennas.

Spatially-averaged power density function provides a solution for 5G devices.

System Components:

6-axis robot arm
System controller running WinPro
Workstation
Boundary detection unit (BDU)
Vector probes
- magnetic field 2mm-loop Hxy and Hz
- electric field Exy and Ez
- connector 1.87mm
70GHz microstrip line
Device positioner
Set of phase-matching cables (1.87mm connectors) for phase-magnitude measurements
Vision system

Applications:

Phase-array systems, 5G-connected devices, WiGig technology, gigabit point-to-point radio links, streaming devices, printed antenna modules, high-frequency wireless communication devices, internet-of-things (IoT) products.

Set of 70GHz probes

70GHz microstrip line

70GHz-Hxy probe with microstrip line.png

PDF DATASHEET

APREL continues to innovate, providing cutting-edge solutions for measurements of mm-wave electromagnetic field emissions with outstanding precision and repeatability.

The high-performance 110GHz scanning system delivers a guaranteed accuracy in comprehensive assessment of high-frequency devices which differentiates EM-ISight from other systems of this class.

With 10-micron resolution step and 360-degree probe rotation function it addresses the most critical near-field measurement challenges like anisotropy of de-coupled electric and magnetic waves with the high reactive component.

The system is capable to deliver repeatable results at the level of 70 micron in Z over a high-frequency emission source.

System Components:

6-axis robot arm
System controller running WinPro
Workstation
Boundary detection unit (BDU)
Vector probes
- magnetic field 2mm-loop Hxy and Hz
- electric field Exy and Ez
- connector 1mm
110GHz microstrip line
Device positioner
Set of phase-matching cables (1mm connectors)
Vision system

Applications:

Devices operating at mm-wave range, phase-array systems, 5G-connected devices, gigabit point-to-point radio links, streaming devices, printed antenna modules, high-frequency wireless communication devices, internet-of-things (IoT) products

Set of 110GHz probes

110GHz microstrip line