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US 9,806,039 B2Granted
Amplifier
AssigneeMitsubishi Electric Corporation
InventorsNaoki Kosaka, Hiroaki Maehara, Ko Kanaya, Miyo Miyashita, Kazuya Yamamoto
Life of this patent
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Abstract
In the present invention, in addition to arranging a plurality of amplifying elements in a staggered manner, signal path lengths from an input-side divider to gate pads of the plurality of amplifying elements are equalized, and signal path lengths from drain pads of the plurality of amplifying elements to an output-side combiner are equalized.
Claims5
An amplifier comprising:
- a package;
- an input-side divider provided in the package;
- an output-side combiner provided in the package;
- a plurality of first amplifying elements provided along the input-side divider in the package, the plurality of first amplifying elements comprising a first gate pad and a first drain pad;
- a plurality of second amplifying elements provided along the output-side combiner in the package, the plurality of second amplifying elements comprising a second gate pad and a second drain pad and having the same shapes as the first amplifying element;
- an intermediate substrate provided between the plurality of first amplifying elements and the plurality of second amplifying elements, the intermediate substrate having a first pattern and a second pattern formed therein;
- an input wire connecting the input-side divider and the first gate pad;
- a first connecting wire connecting the input-side divider and the first pattern;
- a second connecting wire connecting the first pattern and the second gate pad;
- an output wire connecting the second drain pad and the output-side combiner;
- a third connecting wire connecting the first drain pad and the second pattern;
- and
- a fourth connecting wire connecting the second pattern and the output-side combiner,
- wherein the plurality of first amplifying elements and the plurality of second amplifying elements are provided in a staggered manner,
- a length of the input wire is equal to a sum of a length of the first connecting wire, a length of the second connecting wire, and a length between a point on the first pattern at which the first connecting wire is fixed and a point on the first pattern at which the second connecting wire is fixed, and
- a length of the output wire is equal to a sum of a length of the third connecting wire, a length of the fourth connecting wire, and a length between a point on the second pattern at which the third connecting wire is fixed and a point on the second pattern at which the fourth connecting wire is fixed.
13 more elements
An amplifier comprising:
- a package;
- an input-side divider provided in the package;
- an output-side combiner provided in the package;
- a plurality of first amplifying elements provided along the input-side divider in the package, the plurality of first amplifying elements comprising a first gate pad and a first drain pad;
- a plurality of second amplifying elements provided along the output-side combiner in the package, the plurality of second amplifying elements comprising a second gate pad and a second drain pad and having the same shapes as the first amplifying elements;
- a first input wire connecting the input-side divider and the first gate pad;
- a second input wire connecting the input-side divider and the second gate pad;
- a first output wire connecting the first drain pad and the output-side combiner;
- and
- a second output wire connecting the second drain pad and the output-side combiner,
- wherein the plurality of first amplifying elements and the plurality of second amplifying elements are provided in a staggered manner,
- the first input wire has the same length as the second input wire,
- the first output wire has the same length as the second output wire, and
- each of the input-side divider and the output-side combiner is any one of a gold-plated alumina substrate having a thickness of any one of 0.2 mm, 0.254 mm, 0.635 mm, and 1 mm and a gold-plated high-permittivity substrate having a thickness of any one of 0.18 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.38 mm, and 0.4 mm and having a relative permittivity of any one of 38, 89, and 150.
11 more elements
Dependencies are inferred from the claim text.