Design and fabrication of the E-field probe for the measurement of the electromagnetic fields in 5G frequency band
Subject Areas : ICTReza Bahri 1 , Mahdi Fasanghari 2 , Ahmadreza Eskandari 3 , Vahid Yazdanian 4
1 - ICT Research Institute
2 - ICT Research Institute
3 - East Tehran Branch, Islamic Azad University
4 - ICT Research Institute
Keywords: Electric probe, 5G, power detector, dynamic range,
Abstract :
In this paper, a device for measuring the electric fields intensity in the environment is designed and presented in the 5G frequency band, including the frequency range of 3400 ~ 3600 MHz. This device, called the 5G electric probe, is realized by three orthogonal antennas, in connection to filter circuits and power detectors. The proposed antenna is a strip monopole antenna, and these orthogonal antennas can receive the electric fields in all directions uniformly and isotropically. The proposed filter is a coupled-line microstrip filter that has the ability to remove out-of-band signals. The proposed power detector is able to operate linearly over a wide dynamic range and convert the fields received from the antenna and filter sections to suitable DC voltages for digital processing. Finally, the designed 5G electric probe is fabricated and tested. The measurements confirm the proper operation of the probe in terms of dynamic range, accuracy, sensitivity, and the linearity and isotropicity of the received electric fields.
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