Antenna means, a radio communication system and a method for manufacturing a radiating structure

An antenna means for transmitting and/or receiving RF signals, comprising:

• a conductive structure extending between first and second opposite edges, and a feed portion, the conductive structure is a radiating structure partially enclosing a volume, and the first and second edges are located at a first distance from each other forming an open radiating first slit, having at least one open end, the conductive structure having a second slit at a second distance from the first slit, and the second slit having at least one portion essentially parallel with the first slit, the second slit having two opposite sides between which a capacitance is arranged.

An antenna means for transmitting and/or receiving RF signals, comprising:

• a conductive structure extending between first and second opposite edges, and a feed portion, the conductive structure is a radiating structure partially enclosing a volume, and the first and second edges are located at a first distance from each other forming an open radiating first slit, having at least one open end, the radiating structure including a conductive layer carried by a dielectric substrate in which layer said first slit is arranged, thereby forming two portions of the conductive layer.

An antenna means for transmitting and/or receiving RF signals, comprising:

• a conductive structure extending between first and second opposite edges, and a feed portion, the conductive structure is a radiating structure partially enclosing a volume, and the first and second edges are located at a first distance from each other forming an open radiating first slit, having at least one open end, conductive portions being arranged on opposite surfaces of a dielectric substrate and where said slit being formed between adjacent edges on opposite surfaces of said conductive portions.

An antenna means for transmitting and/or receiving RF signals, comprising:

• a conductive structure extending between first and second opposite edges, and a feed portion, the conductive structure is a radiating structure partially enclosing a volume, and the first and second edges are located at a first distance from each other forming an open radiating first slit, having at least one open end, the radiating structure including a conductive layer carried by a dielectric substrate in which said layer, said first slit and a second slit are arranged.

An antenna means for transmitting and/or receiving RF signals, comprising:

• a conductive structure extending between first and second opposite edges, and a feed portion, the conductive structure is a radiating structure partially enclosing a volume, and the first and second edges are located at a first distance from each other forming an open radiating first slit, having at least one open end, at least two channels in the conductive layer being connected to at least one slit whereof a first channel being adapted for matching/tuning the antenna means for-a higher frequency band and whereof a second channel being adapted for matching/tuning the antenna means for a lower frequency band.

An antenna means for transmitting and/or receiving RF signals, comprising:

• a conductive structure extending between first and second opposite edges, and a feed portion, the conductive structure is a radiating structure partially enclosing a volume, and the first and second edges are located at a first distance from each other forming an open radiating first slit, having at least one open end, the radiating structure being divided into at least two constructional portions, a first portion including said dielectric substrate carrying at least one said conductive layer and exhibiting fifth and sixth edges, said first slit being located between the fifth and sixth edges, and a second portion exhibiting seventh and eighth edges, being conductively connected to the fifth and sixth edges, respectively.