New Structure for High-Sensitivity Coaxial Thermal Power Sensor in the Frequency Range from DC–50 GHz
Year: 2025
Type: conference-paper
Abstract: This paper presents the design and development of a new thermal microwave power sensor for a frequency range spanning from DC to 50 GHz. The purpose of this new design is to propose a high-sensitivity thermoelectric power sensor suitable for microcalorimeter application that is a primary method of microwave power calibration. The core structure of the power sensor comprises a Grounded Coplanar Waveguide (GCPW) transmission line, two load resistors, a thermopile, and output pads for DC measurements. The optimized power sensor demonstrates promising simulation performance, with a return loss better than 20 dB across the frequency range and an efficiency exceeding 80%. At 50 GHz, the sensitivity of the power sensor reaches well over 0.240 mV/mW.
Source: EPJ Web of Conferences
Authors: Doudou Ba, Jean-Marie Lerat
Institution: Laboratoire National de Métrologie et d'Essais
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4409208911