Abstract: Disclosed is a photo diode. The photo diode includes: at least two branched waveguides configured to receive beating signals; absorbing layers disposed in vertical directions to the waveguides, and disposed while being spaced apart from distal ends of the waveguides by a predetermined interval; and one or more intermediate layers formed based on the distal ends of the waveguides and disposed with the absorbing layers at upper end of the one or more intermediate layers.

Abstract: Disclosed is a photo diode. The photo diode includes: at least two branched waveguides configured to receive beating signals; absorbing layers disposed in vertical directions to the waveguides, and disposed while being spaced apart from distal ends of the waveguides by a predetermined interval; and one or more intermediate layers formed based on the distal ends of the waveguides and disposed with the absorbing layers at upper end of the one or more intermediate layers.

Abstract: A method for deodorizing air in a cooking device including exhausting air containing odor-producing materials from a cooking chamber of the cooking device through a first opening, and selectively deodorizing air passing through the first opening by removing the odor-producing materials.

Abstract: A cooking apparatus which uses microwaves is provided such that the inside of the cooking apparatus may be formed more compactly than a conventional cooking apparatus. That is, the number of parts and the assembling process may be reduced by providing a convector (e.g., provided at a side of the cooking chamber) which circulates the inner air of the cooking chamber, and a microwave supplier provided at the convector to supply the microwaves into the cooking chamber through the convector.

Abstract: An optical lens for converting an incident beam with an irregular brightness into a uniform beam with a regular brightness includes an adjustable component configured to adjust a brightness distribution or magnitude distribution of a portion with a relatively high brightness in the incident beam. The optical lens includes a lens surface configured to refract the remaining portion in the incident beam except the portion with a relatively high brightness distribution to irradiate a target.

Abstract: A data transmission/reception apparatus in a data communication system includes a transmission/reception unit connected to a device within a board and configured to wirelessly transmit transmission data from the device within the board to another device placed in one of other boards outside the board or another device placed in the board and wirelessly receive reception data from the another device, wherein the transmission/reception unit transmits the transmission data and receives the reception data using millimeter wave bands.

Abstract: A cooking apparatus which uses microwaves is provided having a microwave supplier which supplies microwaves into the cooking chamber. More particularly, the microwave supplier may be provided proximate an upper side of the cooking chamber; and a microwave radiator may be provided inside of the cooking chamber to re-radiate the microwaves.

Abstract: Provided are a resonant element and resonator filter with a frequency tunable layer structure and a method of tuning a frequency of a resonator filter. A resonant element with a frequency-tunable layer structure includes a waveguide layer through which an electric wave is transmitted, a frequency adjustment layer positioned on at least one of an upper layer and a lower layer of the waveguide layer, and configured to change at least one of a height and a structure of the resonant element, and an outer layer positioned outwardly from the waveguide layer and the frequency adjustment layer, and constituting an external structure of the resonant element. Consequently, it is possible to reduce economic and temporal waste caused by remanufacturing a resonator filter because the frequency characteristics of the manufactured resonator filter do not coincide with designed frequency characteristics.

Abstract: A method for deodorizing air in a cooking device including exhausting air containing odor-producing materials from a cooking chamber of the cooking device through a first opening, and selectively deodorizing air passing through the first opening by removing the odor-producing materials.

Abstract: A cooking device includes an inner case, a cooking chamber within the inner case and an odor removal unit configured to generate a plasma discharge for removing odor-producing materials from the cooking chamber.

Abstract: A cooking device includes an inner case, a cooking chamber within the inner case and an odor removal unit configured to generate a plasma discharge for removing odor-producing materials from the cooking chamber.

Abstract: A cooking apparatus which uses microwaves is provided such that the inside of the cooking apparatus may be formed more compactly than a conventional cooking apparatus. That is, the number of parts and the assembling process may be reduced by providing a convector (e.g., provided at a side of the cooking chamber) which circulates the inner air of the cooking chamber, and a microwave supplier provided at the convector to supply the microwaves into the cooking chamber through the convector.

Abstract: A defrost vessel for a microwave oven includes a body having a certain space therein for receiving a refrigerating load, and an antenna connected to the body for oscillating a microwave into the space of the body. When microwave is supplied into a cavity of the microwave oven, the microwave is oscillated into the space of the body by the antenna and thus the microwave is deeply penetrated up to inside of the refrigerating load. Also, the microwave is secondly emitted into the space of the body from an edge of the slot, thereby completely defrosting the refrigerating load.

Abstract: A defrost vessel for a microwave oven includes a body having a certain space therein for receiving a refrigerating load, and an antenna connected to the body for oscillating a microwave into the space of the body. When microwave is supplied into a cavity of the microwave oven, the microwave is oscillated into the space of the body by the antenna and thus the microwave is deeply penetrated up to inside of the refrigerating load. Also, the microwave is secondly emitted into the space of the body from an edge of the slot, thereby completely defrosting the refrigerating load.

Abstract: A microwave oven, which has a circular polarized wave stirrer for uniformly heating food, is disclosed. The microwave oven includes a magnetron generating electromagnetic waves, a waveguide guiding the electromagnetic waves generated from the magnetron to a cavity, and a stirrer formed to an outlet of the waveguide, receiving electromagnetic waves from the magnetron, and generating two polarized waves having different electric field directions and phases.

Abstract: Microwave oven including a cavity for placing food therein, a magnetron for generating a microwave, a waveguide having at least two slots for guiding the microwave from the magnetron to an inside of the cavity, and a stirrer fan rotatably mounted on an inside of the cavity for varying an interfered state of the microwaves periodically, thereby heating the food more uniformly.