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US 2019/0157735 A1Published application
Waveguide strip line transducer and power feed circuit
AssigneeMitsubishi Electric Corporation
InventorsMotomi WATANABE, Shinji ARAI, Tomohiro TAKAHASHI, Takeshi OSHIMA, Takeshi YUASA, Takuma NISHIMURA, Hidenori YUKAWA
Life of this patent
Estimating the term…
Abstract
A substrate is used as one tube wall of a hollow waveguide, the substrate including a strip line wired in an inner layer, a first ground surface formed on a front surface, and a second ground surface formed on a part of a back surface. As a result of such a configuration, a waveguide strip line transducer having the same dimension as the external dimension of the hollow waveguide can be obtained.
Claims12
1-15. (canceled)
A waveguide strip line transducer comprising:
- a substrate including a strip line wired in an inner layer of the substrate, a first ground surface formed on a front surface of the substrate, and a second ground surface formed on a part of a back surface of the substrate;
- a hollow waveguide having a rectangular cross-sectional shape formed by four tube walls, the substrate forming one tube wall of the four tube walls;
- a via hole having one end connected to the strip line, and another end arranged on a non-ground surface being a part of the back surface of the substrate on which the second ground surface is not formed;
- and
- a probe having one end connected to the another end of the via hole, and another end arranged at a position in a tube interior of the hollow waveguide,
- wherein one tube opening of two tube openings of the hollow waveguide is closed with a conductor,
- wherein a matching element adjusting an impedance of the probe is connected to the strip line, and
- wherein the matching element is connected to the strip line in a portion between a position where the via hole is provided and a position where the conductor by which the one tube opening is closed is provided.
5 more elements
A power feed circuit comprising:
- at least one first transducer group;
- a second transducer;
- and
- a synthesizing and distributing circuit;
- wherein each of the at least one first transducer group includes an arrangement of two or more of a plurality of waveguide strip line transducers, and each of the plurality of waveguide strip line transducers includes:
- a substrate including a strip line wired in an inner layer of the substrate, a first ground surface formed on a front surface of the substrate, and a second ground surface formed on a part of a back surface of the substrate;
- a hollow waveguide having a rectangular cross-sectional shape formed by four tube walls, the substrate forming one tube wall of the four tube walls;
- a via hole having one end connected to the strip line, and another end arranged on a non-ground surface being a part of the back surface of the substrate on which the second ground surface is not formed;
- and
- a probe having one end connected to said another end of the via hole, and another end arranged at a position in a tube interior of the hollow waveguide;
- wherein the second transducer includes one of the plurality of waveguide strip line transducers;
- and
- the synthesizing and distributing circuit connects the strip line of each of the plurality of waveguide strip line transducers included in the at least one first transducer group and the strip line of the waveguide strip line transducer included in the second transducer to each other,
- wherein M×N pieces of the plurality of waveguide strip line transducers are arranged in a two-dimensional plane by arranging M pieces of the at least one first transducer group each including the arrangement of N pieces of the plurality of waveguide strip line transducers, wherein M is an integer of 2 or more, and N is an integer of 2 or more, and
- among the M pieces of the at least one first transducer group, an n-th row waveguide strip line transducer included in the at least one first transducer group of m-th column, and an n-th row waveguide strip line transducer included in the at least one first transducer group of (m+1)-th column are connected to a same circularly polarized wave generator, wherein m is an integer of 1 or more and M−1 or less, and n is an integer of 1 or more and N or less.
12 more elements
A power feed circuit comprising:
- a waveguide strip line transducer;
- a transformer;
- and
- a circularly polarized wave generator input/output unit;
- wherein the waveguide strip line transducer comprises:
- a substrate including a strip line wired in an inner layer of the substrate, a first ground surface formed on a front surface of the substrate, and a second ground surface formed on a part of a back surface of the substrate;
- a hollow waveguide having a rectangular cross-sectional shape formed by four tube walls, the substrate forming one tube wall of the four tube walls;
- a via hole having one end connected to the strip line, and another end arranged on a non-ground surface being a part of the back surface of the substrate on which the second ground surface is not formed;
- and
- a probe having one end connected to said another end of the via hole, and another end arranged at a position in a tube interior of the hollow waveguide;
- wherein the transformer has one end connected to one end of the hollow waveguide in the waveguide strip line transducer;
- wherein the circularly polarized wave generator input/output unit has one end connected to another end of the transformer, and another end connected to one end of a circularly polarized wave generator, and
- wherein a tube diameter of the hollow waveguide is smaller than a tube diameter of the circularly polarized wave generator input/output unit.
10 more elements
Dependencies are inferred from the claim text.