Rotary coupled transmission line cell
First Claim
1. A rotary coupled transmission cell comprising:
- an external conductor tube having a circular cross-section for shielding external electromagnetic waves;
a test object table for mounting a test object within said external conductor tube;
a pair of internal conductors disposed in a mutually confronting relationship and rotatably mounted for generating electromagnetic waves toward said test object table; and
a coaxial connector joining area installed on at least one end of said external conductor tube for supplying power to said pair of internal conductors so as to generate standard electromagnetic waves for measuring various electromagnetic waves.
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Accused Products
Abstract
A rotary coupled transmission line cell is disclosed which generates standard electromagnetic waves needed for measuring the electromagnetic wave susceptibility (EMS), for measuring the electromagnetic wave interference (EMI) and for correcting the probe. In the present invention, two internal conductors are used to have a 4-port structure, and therefore, the generation of the circulation transmission waves are inhibited during the generation of the standard waves having arbitrary impedances. Therefore, accurate standard waves can be generated, and adjustments of arbitrary polarizations and arbitrary irradiating directions are made possible. Further, when an odd mode power supply is carried out to the internal conductors, the standard electromagnetic waves having a uniformity as high as 3 times that of the conventional ones can be generated. Further, an inverted L shaped test object supporting plate is installed, so that the polarization can be carried out with a greater adjustment width.
13 Citations
6 Claims
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1. A rotary coupled transmission cell comprising:
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an external conductor tube having a circular cross-section for shielding external electromagnetic waves; a test object table for mounting a test object within said external conductor tube; a pair of internal conductors disposed in a mutually confronting relationship and rotatably mounted for generating electromagnetic waves toward said test object table; and a coaxial connector joining area installed on at least one end of said external conductor tube for supplying power to said pair of internal conductors so as to generate standard electromagnetic waves for measuring various electromagnetic waves. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification