INTERMEDIATE TRANSITION BETWEEN AN ANTENNA AND A COPLANAR WAVEGUIDE TRANSMISSION LINE OF A SOLID STATE AMPLIFIER
First Claim
1. A microwave oven comprising:
- an enclosed cavity in which a food load may be placed;
an RF signal generator for generating RF signals having selected frequencies and phases;
a solid state amplifier comprising a coplanar waveguide transmission line, the solid state amplifier coupled to the RF signal generator for receiving and amplifying the RF signals;
an intermediate transition comprising;
a metal boundary having a first section and a second section having different dimensions than that of the first section;
a first dielectric disposed in the first section;
a second dielectric disposed in the second section; and
a center conductor extending from a first side of the metal boundary to a second side of the metal boundary through the first dielectric and the second dielectric, where a first end of the center conductor is connected to an output of the solid state amplifier; and
an antenna coupled to a second end of the center conductor for receiving the amplified RF signals and introducing electromagnetic radiation having frequencies and phases of the amplified RF signals into the enclosed cavity.
3 Assignments
0 Petitions
Accused Products
Abstract
A microwave oven having an enclosed cavity is provided including an RF signal generator; a solid state amplifier comprising a coplanar waveguide transmission line, the amplifier coupled to the RF signal generator for receiving and amplifying the RF signals generated thereby; an intermediate transition including: a metal boundary having a first section and a second section having different dimensions than that of the first section; a first dielectric disposed in the first section; a second dielectric disposed in the second section; and a center conductor extending from a first side of the substrate to a second side of the substrate through the first and second dielectrics, where a first end of the center conductor is connected to an output of the amplifier; and an antenna coupled to a second end of the center conductor for receiving the amplified RF signals and introducing electromagnetic radiation into the cavity.
2 Citations
20 Claims
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1. A microwave oven comprising:
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an enclosed cavity in which a food load may be placed; an RF signal generator for generating RF signals having selected frequencies and phases; a solid state amplifier comprising a coplanar waveguide transmission line, the solid state amplifier coupled to the RF signal generator for receiving and amplifying the RF signals; an intermediate transition comprising; a metal boundary having a first section and a second section having different dimensions than that of the first section; a first dielectric disposed in the first section; a second dielectric disposed in the second section; and a center conductor extending from a first side of the metal boundary to a second side of the metal boundary through the first dielectric and the second dielectric, where a first end of the center conductor is connected to an output of the solid state amplifier; and an antenna coupled to a second end of the center conductor for receiving the amplified RF signals and introducing electromagnetic radiation having frequencies and phases of the amplified RF signals into the enclosed cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An RF feed for a microwave oven having an enclosed cavity, the RF feed comprising:
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an intermediate transition comprising; a metal boundary having a first section and a second section having different dimensions than that of the first section; a first dielectric disposed in the first section; a second dielectric disposed in the second section; and a center conductor extending from a first side of the metal boundary to a second side of the metal boundary through the first dielectric and the second dielectric, where a first end of the center conductor is connected to an output of a solid state amplifier to receive amplified RF signals therefrom; and an antenna coupled to a second end of the center conductor for receiving the amplified RF signals and introducing electromagnetic radiation having frequencies and phases of the amplified RF signals into the enclosed cavity. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An RF feed for a microwave oven having an enclosed cavity, the RF feed comprising:
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an intermediate transition comprising; a metal boundary having a first section and a second section having different dimensions than that of the first section, wherein the first and second sections have different cross-sectional shapes and different lengths; a first dielectric disposed in the first section; a second dielectric disposed in the second section, wherein the first and second dielectrics have different dielectric properties; and a center conductor extending from a first side of the metal boundary to a second side of the metal boundary through the first dielectric and the second dielectric, where a first end of the center conductor is connected to an output of a solid state amplifier to receive amplified RF signals therefrom; and an antenna coupled to a second end of the center conductor for receiving the amplified RF signals and introducing electromagnetic radiation having frequencies and phases of the amplified RF signals into the enclosed cavity. - View Dependent Claims (18, 19, 20)
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Specification