Evaluation of the Radiated Electric Field of a Tri-band Circularly Polarized Antenna Integrating a Ferrite Material using Infrared Thermography
Abstract This paper evaluates the radiated electric field (E-field) intensity of a tri-band circularly polarized antenna using infrared thermography (IRT). The radiated fields at each operational band are measured and compared with electromagnetic simulations. We demonstrate how IRT measurements’ fast, non-invasive nature enables rapid validation of the antenna’s operating modes. Additionally, the antenna performance is […]
Antenna Diagnostics using IR Thermography Planar Phaseless Near-Field Measurements (2025)
Abstract This paper presents the potential of infrared (IR) thermography as a complementary method for antenna diagnostics and characterization. Traditional antenna measurement techniques are based on probe-based near-field scanning, which requires phase information for accurate far-field reconstruction. IR thermography offers a nonintrusive, broadband alternative, capable of capturing near-field intensity data. However, the phase of the […]
Experimental validation of an X-Band active antenna for data downlink applications
Abstract Future space missions with high-resolution microwave and optical instruments will require more sophisticated data downlink antennas. Anywaves has defined a roadmap to make commercially available an X-band payload data transfer phased array antenna capable of electronic beam steering compatible with typical low Earth orbit small satellite requirements. A key aspect in the development of […]
Near-Field Visualization of Antennas’ Radiated Electric Field by Infrared Thermography as a Supplement Tool for RF Engineering Education
Abstract This paper presents the use of infrared thermography (IR) as a complementary teaching tool for RF engineering curricula. It enables the visualization of the radiated electric field intensity of various types of antennas, even just a few millimeters away from the source. We present some examples of the near-field visualization of the electric field […]
Near-Field Diagnosis of an X-band Telemetry Antenna using Infrared Thermography
Abstract This paper presents an example of antenna diagnosis using a measurement device based on infrared thermography. Infrared thermography measurements allow to obtain, in less than one minute, a high resolution near field mapping of the electric field radiated by the antenna under test. In this study, such measurements are performed on an X-band telemetry […]
Functional Test of a Communication System by Fast Visualization of the Very-Near-Field Radiation Using Infrared Thermography
Abstract This paper presents a functional test of a communication system based on infrared thermography measurements. This non-intrusive method allows to measure, in a few dozen seconds, the very-near-field radiated by the antennas integrated in the system under test. More particularly, the measurements are carried out on a Wi-Fi communication system operating in the 2.4 […]
Power Handling Test of a L-Band Antenna Using Infrared Thermography
Abstract This paper presents power handling tests performed on an antenna using infrared thermography. Infrared thermography measurement allows to quickly verify that the antenna radiation is not affected by the power increase. The tests are carried out on an L-band antenna for a maximum input power of 6.3 W at its frequency of interest of […]