Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
154 words
Directional rotating antenna for use in a microwave heating cavity comprising: a. a probe antenna extending through an aperture in a surface of said cavity for receiving microwave energy in a waveguide and coupling it into said cavity, said probe antenna being substantially perpendicular to said surface; b. a transmission line conductor connected to said probe antenna within said cavity, said transmission line conductor being adjacent and substantially parallel to said surface; c. first and second conductor legs respectively connected to the ends of said transmission line conductor, said legs extending inwardly to said cavity away from said surface; d. first and second antennas respectively connected to the inwardly extending ends of said first and second conductor legs, said first and second antennas being substantially parallel to said surface; and e. means to axially rotate said probe antenna whereby said first and second antennas radiate microwave energy in said cavity with uniform energy distribution.
Claim 2
Dependent Claim
154 words
Directional rotating antenna for use in a microwave heating cavity comprising: a. a probe antenna extending through an aperture in a surface of said cavity for receiving microwave energy in a waveguide and coupling it into said cavity, said probe antenna being substantially perpendicular to said surface; b. a transmission line conductor connected to said probe antenna within said cavity, said transmission line conductor being adjacent and substantially parallel to said surface; c. first and second conductor legs respectively connected to the ends of said transmission line conductor, said legs extending inwardly to said cavity away from said surface; d. first and second antennas respectively connected to the inwardly extending ends of said first and second conductor legs, said first and second antennas being substantially parallel to said surface; and e. means to axially rotate said probe antenna whereby said first and second antennas radiate microwave energy in said cavity with uniform energy distribution.
Claim 3
Dependent Claim
52 words
The directional rotating antenna of claim 1 wherein said transmission line conductor comprises first and second transmission lines of one-eighth and three-eighths wavelengths respectively, said first and second conductor legs comprise quarter-wavelength vertical support conductors, and said first and second antennas comprise half-wavelength antenna elements positioned at right angles to each other.
Claim 4
Dependent Claim
26 words
The directional rotating antenna of claim 1 wherein said first and second antennas comprise half-wavelength antenna elements and are spaced approximately one-quarter wavelength from said surface.
Claim 5
Dependent Claim
17 words
The directional rotating antenna of claim 3 wherein said first antenna is orthogonal to said second antenna.
Claim 6
Dependent Claim
162 words
A microwave oven for heating product with uniform energy distribution, comprising: a. a microwave oven cavity having an aperture in the floor and an access opening in the front; b. a door for enclosing said access opening; c. a magnetron; d. a waveguide positioned below said floor for coupling microwave energy from said magnetron to said aperture; e. a directional antenna including a probe antenna axially supported through said aperture for receiving microwave energy in said waveguide and coupling it through said aperture to said directional antenna, said directional antenna comprising a transmission line conductor slightly spaced and substantially parallel to a portion of said floor surrounding said aperture, conductor legs extending from the ends of said transmission line conductor inwardly away from said floor, and radiating elements connected to said legs wherein said radiating elements are spaced approximately one-quarter wavelength from said floor portion and substantially parallel thereto; and f. means for axially rotating said directional antenna about said probe antenna.
Claim 7
Dependent Claim
162 words
A microwave oven for heating product with uniform energy distribution, comprising: a. a microwave oven cavity having an aperture in the floor and an access opening in the front; b. a door for enclosing said access opening; c. a magnetron; d. a waveguide positioned below said floor for coupling microwave energy from said magnetron to said aperture; e. a directional antenna including a probe antenna axially supported through said aperture for receiving microwave energy in said waveguide and coupling it through said aperture to said directional antenna, said directional antenna comprising a transmission line conductor slightly spaced and substantially parallel to a portion of said floor surrounding said aperture, conductor legs extending from the ends of said transmission line conductor inwardly away from said floor, and radiating elements connected to said legs wherein said radiating elements are spaced approximately one-quarter wavelength from said floor portion and substantially parallel thereto; and f. means for axially rotating said directional antenna about said probe antenna.
Claim 8
Dependent Claim
33 words
The microwave oven of claim 5 wherein there are two of said conductor legs and the difference in the distancces from said probe antenna to said respective two conductor legs is one-quarter wavelength.
Claim 9
Dependent Claim
18 words
The microwave oven of claim 6 wherein there are two radiating elements that are perpendicular to each other.