Abstract: A radiating element is provided for applying electromagnetic energy to a cavity. The radiating element includes a feeding section and a grounding section, wherein the feeding section and the grounding section extend substantially within a first plane. The radiating element also includes a radiating section in electrical communication with the feeding section and the grounding section, wherein the radiating section includes at least one bend between the feeding section and a distal end of the radiating section, the at least one bend extending in a second plane different from the first plane.

Abstract: A radiating element for applying electromagnetic energy to a cavity. The radiating element comprises a feeding section and a grounding section, wherein the feeding section and the grounding section extend substantially within a first plane. The radiating element also includes a radiating section in electrical communication with the feeding section and the grounding section, wherein the radiating section includes at least one bend between the feeding section and a distal end of the radiating section, the at least one bend extending in a second plane different from the first plane.

Abstract: An apparatus for applying RF energy to an object in a cavity is disclosed. The apparatus may include a plurality of pairs of radiating ports, and a plurality of electrically conductive elements. Each pair of radiating ports may include two radiating ports configured to emit RF radiation into the cavity coherently with each other; and each electrically conductive element may be positioned between two radiating ports constituting a pair of radiating ports. The electrically conductive elements may be arranged such that RF radiation emitted by the plurality of pairs of radiating ports concentrates closer to the center of the cavity than that in the absence of the electrically conductive elements.