A THz Receiver with Novel Features and Functionality

Sensors (Basel). 2018 Nov 6;18(11):3793. doi: 10.3390/s18113793.


The presented THz receiver is based on an antenna coupled titanium micro-bolometer. A new geometrical design improves the robustness and extends the lifetime of the sensor. A study of sensor lifetime using different biasing currents is presented. The lifetime was verified by several tests and over 1000 operating hours. A new micro-bolometer sensitivity measurement algorithm is presented in the paper and measurement results using the proposed algorithm are shown. The new algorithm was developed to be suitable for ATM production testing. In the paper, a novel feature called "sensitivity boosting" is described, together with its influence on sensitivity and lifetime.

Keywords: THz micro-bolometer; micro-bolometer lifetime; sensitivity boosting.