Transmission-line transformer and amplifier unit having the same
AssigneeNEC Electronics Corporation
InventorTakekatsu UEKI
Life of this patent
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Abstract
A transmission-line transformer which includes a core composed of a magnetic substance, and a transmission line, wherein the core includes a body having the transmission line wound therearound, and a movable unit which can move relative to the body in keeping contact therewith, wherein the transmission-line transformer is provided on a substrate, at least a portion of the movable unit (a head, for example) is located on the opposite side of the substrate, while placing the body in between, and the movable unit is moved relative to the body, by an operation effected to at least the portion (the head, for example).
Claims11
A transmission-line transformer comprising:
- a core composed of a magnetic substance;
- and
- a transmission line;
- said core comprising:
- a body having said transmission line wound therearound;
- and,
- a movable unit which can move relative to said body in keeping contact therewith,
- wherein said transmission-line transformer is provided on a substrate,
- at least a portion of said movable unit is located on the opposite side of said substrate, while placing the body in between, and
- said movable unit is moved relative to said body, by an operation effected to at least said portion.
A transmission-line transformer comprising:
- a core composed of a magnetic substance;
- and
- a transmission line;
- said core comprising:
- a body having said transmission line wound therearound;
- and,
- a movable unit which can move relative to said body in keeping contact therewith,
- wherein said movable unit is disposed in a guide way which is formed in said body, so as to be movable along said guide way by a push operation.
A transmission-line transformer comprising:
- a core composed of a magnetic substance;
- and
- a transmission line;
- said core comprising:
- a body having said transmission line wound therearound;
- and,
- a movable unit which can move relative to said body in keeping contact therewith,
- wherein said transmission-line transformer is provided on a substrate, and
- said movable unit is provided at a position accessible for a moving operation from the side opposite to said substrate with reference to the transmission-line transformer.
An amplifier unit comprising:
- a transmission-line transformer;
- and
- a wide-band amplifier connected to said transmission-line transformer;
- said transmission-line transformer comprising:
- a core composed of a magnetic substance;
- and
- a transmission line;
- said core comprising:
- a body having said transmission line wound therearound;
- and,
- a movable unit which can move relative to said body in keeping contact therewith,
- wherein said transmission-line transformer is provided on a substrate,
- at least a portion of said movable unit is located on the opposite side of said substrate, while placing the body in between, and
- said movable unit is moved relative to said body, by an operation effected to at least said portion.
Dependencies are inferred from the claim text.