Accurate equivalent circuit model for millimetre-wave UTC photodiodes

Optics Express
Michele NatrellaAlwyn J Seeds

Abstract

We present a comprehensive study of uni-travelling carrier photodiode impedance and frequency photo-response supported by measurements up to 110 GHz. The results of this investigation provide valuable new information for the optimisation of the coupling efficiency between UTC-PDs and THz antennas. We show that the measured impedance cannot be explained employing the standard junction-capacitance/series-resistance concept and propose a new model for the observed effects, which exhibits good agreement with the experimental data. The achieved knowledge of the photodiode impedance will allow the absolute level of power emitted by antenna integrated UTCs to be predicted and ultimately maximised.

References

Jul 1, 2010·Optics Express·Efthymios RouvalisAlwyn J Seeds
Apr 20, 2012·Optics Express·E RouvalisA J Seeds
Oct 10, 2013·Optics Express·Alwyn J SeedsCyril C Renaud

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Related Concepts

Related Feeds

Cell Imaging in CNS

Here is the latest research on cell imaging and imaging modalities, including light-sheet microscopy, in the central nervous system.