Antenna testing | KAPTEOS

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measurement, mesure, champ electrique, electric field, résaux d'antennes, antenna arrays, antennas, sources impulsionnelles, diagramme de rayonnement, densité de puissance, power density measurement,ultra wide band pulse sources, radiation pattern

Antenna testing

Since ultra compact and interference-free electric-field probes allow vector measurement, KAPTEOS solution meets the needs of power density measurement and, more broadly, of antenna testing.

KAPTEOS has conducted many studies and manufactured numerous systems on behalf of its clients: characterization of ultra wide band pulse sources for the defense sector, measurement and mapping of the power density emitted by antennas for the telecommunications sector, characterization of the radiation pattern of unitary antennas or antenna arrays.

They use KAPTEOS technology for their R&D

List of publications

"Minimally invasive optical sensors for microwave-electric-field exposure measurements"

Journal of Optical Microsystems

FEMTO-ST Institute, Besançon (FR)

2021

"20 GHz antenna radiation pattern obtained from near field mapping with electro-optic probe on a single plane"

Antennas and Wireless Propagation Letters

IMEP-LAHC, Le Bourget-du-Lac (FR)

2020

Case studies

Frequency-domain pulse measurement

by L. DUVILLARET/G. GABORIT

(AN24-FDPM-09)

Measuring gated-CW pulses in the frequency domain is not straightforward especially when considering weak signals. Using a spectrum analyzer as demodulator, the envelope of the pulses can be carried out. However, the recommended setup requires a signal generator with a trigger output which is usually not a native feature. To overcome that issue, a low frequency generator is added. With a robust model of the spectrum analyzer behavior, accurate measurements of peak signal amplitude only 1 dB above noise floor is achievable.

Electromagnetic interference issue for antenna testing

by L. DUVILLARET

(AN23-EMI-01)

When dealing with RF experiments, ElectroMagnetic Interference (EMI) constitutes a classical issue that limits the measurement accuracy when it doesn’t prevent making measurement. Identifying the source of EMI remains a challenge and solving EMI issue is generally time-consuming and costly...

Electric field probe calibration

by L. DUVILLARET

(AN21-EFPC-04)

Electric (E) field probes need to be calibrated in order to get absolute E-field strength values. Contrary to other sensors (temperature, pressure...), the sensitivity of E-field probes depend on the medium in which the probe is placed. An E-field probe calibrated in air gives a wrong result when used inside water or inside any other liquid...

Use of eoCal™ HF6

by L. DUVILLARET

(AN21-eoCal-01)

Electric (E) field probes need to be calibrated in order to get absolute E-field strength values. Their calibration in air is straightforward for frequencies up to 6 GHz thanks to adiabatic TEM cell...

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