Gigahertz transverse electromagnetic (gtem) cell for measuring insertion loss and insertion loss measurement method using the gtem cell
AssigneeElectronics and Telecommunications Research Institute
InventorsJung Hwan HWANG, JONG HWA KWON
Life of this patent
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Abstract
Provided is a gigahertz transverse electromagnetic (GTEM) cell for measuring an insertion loss and an insertion loss measurement method using the GTEM cell. The GTEM cell may include an output port configured to measure an insertion loss of a test object occurring when an electromagnetic field having specific intensity is applied to the test object, and may measure the insertion loss of the test object from the GTEM cell based on a change in the intensity of the electromagnetic field measured using the output port.
Claims20
A gigahertz transverse electromagnetic (GTEM) cell comprising:
- an outer conductor configured in a spherical shape;
- an input port through which an electrical signal is input;
- an inner conductor in which current flows in response to the electrical signal input through the input port in the outer conductor;
- a load resistance in which the current flowing in the inner conductor is terminated;
- an electromagnetic wave absorber provided to be adjacent to one surface of the load resistance and configured to absorb an electromagnetic wave formed by the current;
- and
- an output port configured as a coaxial transmission line and provided on a top surface of the outer conductor,
- wherein a plurality of output ports are present and an electrical signal for measuring intensity of an electric field in the GTEM cell is output through the output port.
A gigahertz transverse electromagnetic (GTEM) cell comprising:
- an outer conductor configured in a spherical shape;
- an input port through which an electrical signal is input;
- an inner conductor in which current flows in response to the electrical signal input through the input port in the outer conductor;
- a load resistance in which the current flowing in the inner conductor is terminated;
- an electromagnetic wave absorber provided to be adjacent to one surface of the load resistance and configured to absorb an electromagnetic wave formed by the current;
- and
- an output port configured as a coaxial transmission line and provided on a top surface of the outer conductor,
- wherein the output port is connected to a microstrip line and an electrical signal for measuring intensity of an electric field in the GTEM cell is output through the output port.
An insertion loss measurement method performed at a gigahertz transverse electromagnetic (GTEM) cell, the method comprising:
- measuring an attenuation amount by a conductivity of the GTEM cell in a state in which a test object is not placed on a test area, using a network analyzer connected to the GTEM cell;
- and
- measuring an insertion loss of the test object based on an attenuation amount by a conductivity of the GTEM cell in a state in which the test object is placed on the test area, using the network analyzer.
Dependencies are inferred from the claim text.