Title :
Design study of a thermocouple power sensor as a monolithic fin-line
Author :
Jones, Mark H. ; Scott, Jonathan
Abstract :
Making traceable power measurements above 110 GHz using current measurement technologies is challenging. We investigate a design of power sensor consisting of a thermocouple-based integrated circuit (IC) mounted as a finline component in WR-6 waveguide. The design is original in that it contains an antenna, terminating resistor and thermocouples on-chip. We detail the design and report results from simulations and measurements made on a two-port 16:1 scale model. Our design of scale model provides both insertion and reflection loss measurements. Electromagnetic simulation and easily-calibrated model measurements confirm that the short antenna fins feasible on a monolithic microwave integrated circuit (MMIC) can achieve acceptable specifications. The design proves to be relatively insensitive to the value of the terminating resistance or the size of the antenna fins.
Keywords :
MMIC; microwave antennas; power measurement; temperature sensors; thermistors; thermocouples; WR-6 waveguide; antenna fin; current measurement technology; easily-calibrated model measurement; electromagnetic simulation; frequency 110 GHz; monolithic fin-line; monolithic microwave integrated circuit; power measurement; reflection loss measurement; thermocouple on-chip; thermocouple power sensor design; thermocouple-based integrated circuit; two-port scale model; Electrical resistance measurement; Electromagnetic waveguides; Integrated circuit modeling; Loss measurement; Resistors; Semiconductor device measurement;
Conference_Titel :
Microwave Measurement Conference (ARFTG), 2011 77th ARFTG
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-61284-959-1
Electronic_ISBN :
978-1-61284-960-7
DOI :
10.1109/ARFTG77.2011.6034554
