Patent ID: 7681434
Filing Date: 2010-03-23
Classification: G01N

Abstract:
1. A sensing device which uses an electromagnetic wave having a frequency in a frequency region of 30 GHz or more and 30 THz or less, comprising: a dielectric substrate; a generation portion provided on the dielectric substrate for generating the electromagnetic wave; a first propagating portion provided on the dielectric substrate, wherein the first propagating portion is in contact with the generation portion for propagating the electromagnetic wave generated at the generation portion in a first direction; a second propagating portion provided on the dielectric substrate, wherein the second propagating portion is in contact with the generation portion for propagating the electromagnetic wave generated at the generation portion in a second direction different from the first direction; a first detection portion provided on the dielectric substrate for detecting the electromagnetic wave propagated through the first propagating portion; and a second detection portion provided on the dielectric substrate for detecting the electromagnetic wave propagated through the second propagating portion.