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Design study of a thermocouple power sensor as a monolithic fin-line

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.
Type
Conference Contribution
Type of thesis
Series
Citation
Jones, M.H. & Scott, J. (2011). Design study of a thermocouple power sensor as a monolithic fin-line. Paper presented at the 77th ARFTG Microwave Measurement Conference. Baltimore, Maryland; June 10 2011.
Date
2011
Publisher
Degree
Supervisors
Rights
© 2011 The authors.