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- FET Terahertz detector with large bandwidth and large dynamic range hal link

Auteur(s): Knap W., Le Bars Philippe, Sahyoun Walaa, Coquillat D., Teppe F., Nouvel P., Thome L., Plagellat-penarier A., Blin S.

Brevet: #GB2516884B, (2017)


Ref HAL: hal-01923999_v1
Exporter : BibTex | endNote
Résumé:

An electromagnetic wave detector comprises a field effect transistor, an antenna 601 connected to a first end of a gate 608 of the field effect transistor for receiving incident electromagnetic waves, and a biasing connection pad 605 connected to a second end of the gate 608 for applying a bias voltage to the transistor. The antenna may have a first part 601b connected to the first end of the gate 608 and a second part 601a connected to a source 602 of the transistor. The detector may further comprise a virtual ground element 607 connected to the second end of the gate 608. A control module may control the bias voltage applied on the biasing connection pad 605 according to the electromagnetic power received by the detector. The transistor may be a high electron mobility transistor (HEMT).