Patent ID: 11867643
Assignee: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A planar-type plasma diagnosis apparatus comprising:
a transmission antenna configured to apply a frequency-variable microwave to plasma;
a reception antenna configured to receive the microwave from the plasma; and
a body part configured to encompass the transmission antenna and the reception antenna so that the transmission antenna and the reception antenna are insulated from each other,
wherein,
each of an upper surface of the transmission antenna configured to apply the microwave and an upper surface of the reception antenna configured to receive the microwave has a planar shape,
the upper surface of the transmission antenna and the upper surface of the reception antenna are horizontally adjacent to each other to face each other, and
in each of the upper surface of the transmission antenna and the upper surface of the reception antenna, a length from one end to the other end in an opposite direction is smaller than a length from one end to the other end in a direction perpendicular to the opposite direction.