Radio wave absorber, electromagnetic field measurement system and radiated immunity system
AssigneeFuji Xerox Co., Ltd.
InventorsMasayuki HIRATA, Hiroshi Andou
Life of this patent
Estimating the term…
Abstract
A radio wave absorber for use in an electromagnetic field probe that measures an electromagnetic field by means of an antenna section provided therewith, the radio wave absorber including: a first end section; a second end section that is located at a position opposite the first end section; and an intermediate section that is located between the first and second end sections, the intermediate section having outer dimension and thickness that increase in accordance with a distance from the first end section toward the second end section.
Claims12
An electromagnetic field measurement system comprising:
- an electromagnetic field probe having an antenna section that measures an electromagnetic field, and a radio wave reflector extending from the antenna section;
- a radio wave absorber that is mounted to the radio wave reflector of the electromagnetic field probe and has a portion having outer dimension and thickness that increase in accordance with an increase in a distance from the antenna section of the electromagnetic field probe;
- and
- a probe retaining member that retains the electromagnetic field probe.
An electromagnetic field measurement system, comprising:
- an electromagnetic field probe having an antenna section that measures an electromagnetic field, a retaining member that retains the antenna section, and a box section that receives an input of result of measurement performed by the antenna section;
- a radio wave absorber that surrounds a circumference of the retaining member of the electromagnetic field probe and a circumference of the box section;
- and
- a cable that extends from the box section of the electromagnetic field probe,
- wherein the radio wave absorber has a proximal end section provided close to the antenna section of the electromagnetic field probe and a distal end section provided remote from the antenna section,
- wherein a cross-sectional area of the radio wave absorber increases in accordance with a distance from the proximal end section toward the distal end section;
- and
- wherein the cross-sectional area is configured to be maximum at an intermediate position between the proximal end section and the distal end section or at the position of the distal end section.
Dependencies are inferred from the claim text.