Element that oscillates or detects terahertz waves
AssigneeCanon Kabushiki Kaisha
InventorYasushi Koyama
Life of this patent
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Abstract
An element which oscillates or detects terahertz waves includes a resonance unit including a differential negative resistance element, a first conductor, a second conductor, and a dielectric body, a bias circuit configured to supply a bias voltage to the differential negative resistance element, and a line configured to connect the resonance unit and the bias circuit to each other. The differential negative resistance element and the dielectric body are disposed between the first and second conductors. The line is a low impedance line in a frequency fLC of resonance caused by inductance of the line and capacitance of the resonance unit using an absolute value of a differential negative resistance of the differential negative resistance element as a reference.
Claims15
An element which oscillates or detects terahertz waves, the element comprising:
- a resonance unit including a differential negative resistance element, a first conductor, a second conductor, and a first dielectric body;
- a bias circuit configured to supply a bias voltage to the differential negative resistance element, the bias circuit including a resistance and capacitance, each of the resistance and the capacitance being electrically connected in parallel with the differential negative resistance element;
- and
- a line configured to electrically connect the resonance unit and the bias circuit to each other,
- wherein the differential negative resistance element and the first dielectric body are disposed between the first and second conductors,
- the line includes a third conductor, a fourth conductor, a second dielectric body disposed between the third and fourth conductors, and a fifth conductor which electrically connects the first and third conductors to each other,
- a thickness of the second dielectric body is smaller than a thickness of the first dielectric body, and
- a width of the third conductor is smaller than a width of the first conductor.
An element which oscillates or detects terahertz waves, the element comprising:
- a resonance unit including a differential negative resistance element, a first conductor, a second conductor, and a first dielectric body;
- a bias circuit configured to supply a bias voltage to the differential negative resistance element, the bias circuit including a resistance and capacitance, each of the resistance and the capacitance being electrically connected in parallel with the differential negative resistance element;
- and
- a line configured to electrically connect the resonance unit and the bias circuit to each other,
- wherein the differential negative resistance element and the first dielectric body are disposed between the first and second conductors,
- the line includes a third conductor, a fourth conductor, a second dielectric body disposed between the third and fourth conductors, and a fifth conductor which electrically connects the first and third conductors to each other,
- a thickness of the second dielectric body is smaller than a thickness of the first dielectric body, and
- the thickness of the second dielectric body is equal to or larger than 0.001 μm and equal to or smaller than 1μm.
An element which oscillates or detects terahertz waves, the element comprising:
- a resonance unit including a differential negative resistance element, a first conductor, a second conductor, and a first dielectric body;
- a bias circuit configured to supply a bias voltage to the differential negative resistance element, the bias circuit including a resistance and capacitance, each of the resistance and the capacitance being electrically connected in parallel with the differential negative resistance element;
- and
- a line configured to electrically connect the resonance unit and the bias circuit to each other,
- wherein the differential negative resistance element and the first dielectric body are disposed between the first and second conductors,
- the line includes a third conductor, a fourth conductor, a second dielectric body disposed between the third and fourth conductors, and a fifth conductor which electrically connects the first and third conductors to each other,
- a thickness of the second dielectric body is smaller than a thickness of the first dielectric body, and
- the line is a low impedance line in a frequency of resonance caused by inductance of the line and capacitance of the resonance unit using an absolute value of a differential negative resistance of the differential negative resistance element as a reference.
Dependencies are inferred from the claim text.