Abstract: A method for producing internal antenna components for small radio devices. A radiator is supported by a flat-topped protrusion formed in a plastic blank—e.g., by pressing with a hot tool. The length of the protrusion sets the height of the planar antenna. The radiator and its conductors are formed by removing material from a conducting film attached to the top of the protrusion. A feed and a shorting conductor are formed as extensions of the radiator. Contacts are attached to the feed and the shorting conductor to connect the antenna component to the radio device. Elongated gaps made in the plastic blank around the edges of the protrusion can facilitate loosening of the component. A plurality of antenna components can be formed on a uniform plastic blank and placed in a common package. The method results in low manufacturing costs and quick production time.

Abstract: Method for producing radiator components for internal antennas in small-sized radio devices. The basis is for instance a tape-like plastic blank (301) wound on a coil former (RL1). In order to support a radiator a flat-topped protrusion (311) is formed into the plastic blank, for instance by pressing with a hot tool. The height of the protrusion is the designed height of the planar antenna. The actual radiator (RPN) with its conductors is formed by removing material from a conducting film to be attached to the top of the boss. A feeding conductor and a shorting conductor are formed as extensions of the radiator, and they are located on a surface of the protrusion. A contact is attached both to the feeding conductor and to the shorting conductor in order to later connect the antenna component to a radio device. Elongated gaps can be made in the plane of the plastic blank around the edges of the protrusion in order to facilitate loosening of the component.