Abstract: An antenna radiator assembly (201) and radio communications assembly (200) comprising a circuit board (210) supporting electrical conductors (225). A ground plane (140) is supported by the circuit board (210) and a symmetrical antenna radiator element (107) is coupled to a feed point (130). When viewed in plan view, a first surface area of the symmetrical antenna radiator element (107) overlaps part of the ground plane (140). There is a ground connector (131) inductively coupling the symmetrical antenna radiator element to the ground plane (141). There are two identical parasitic ground coupling plates (142,143) that when viewed in the plan view overlap respective secondary surface areas of the symmetrical antenna radiator element (107). Switching circuitry (160) provides selectively coupling the two identical parasitic ground coupling plates (142,143) to the ground plane (140).

Abstract: An antenna radiator assembly (201) and radio communications assembly (200) comprising a circuit board (210) supporting electrical conductors (225), one of the electrical conductors (225) being coupled to a feed point (130), and the circuit board (210) having a ground plane (140) formed from at least one conductive sheet. There is a tuning plate (132), a parasitic tuning line (150), a switching unit (160) selectively electrically coupling the tuning plate (132) to the tuning line (150).

Abstract: A circuit assembly (1) and electronic device (30) having a printed circuit board (2), with conductive runners (3) and a ground plane (4). There is electronic circuitry (5) mounted to the circuit board (2) and electrically coupled to the runners (3). The circuit assembly (1) also has a Liquid Crystal Display (6) electrically coupled to the electronic circuitry (5), and a monopole element (7) is mounted on a surface of the Liquid Crystal Display (6) by a dielectric mount (10) that is proximal to an edge (11) of the printed circuit board (2).

Abstract: A radio communications device (100) having an antenna radiator assembly (19) has radio frequency communications circuitry (2), a ground plane (40), a radio frequency radiator element (7) and connectors each physically contacting the radio frequency radiator element (7) at contact points. A feed point (30) formed by one of the connectors couples the radio frequency radiator element (7) to the radio frequency communications circuitry (2). Grounds links (32, 36a, 36b, 36c) formed the connectors selectively couple the radio frequency radiator element (7) to the ground plane (40) via a switching unit (22). When operating in a specific frequency band during a transmit mode, the switching unit (22) selects one the connectors to provide a transmit frequency sub-band, and when operating in the specific frequency band during a receive mode, the switching unit selects another of the connectors to provide a receive frequency sub-band.

Abstract: A circuit assembly (1) and electronic device (30) having a printed circuit board (2), with conductive runners (3) and a ground plane (4). There is electronic circuitry (5) mounted to the circuit board (2) and electrically coupled to the runners (3). The circuit assembly (1) also has a Liquid Crystal Display (6) electrically coupled to the electronic circuitry (5), and a monopole element (7) is mounted on a surface of the Liquid Crystal Display (6) by a dielectric mount (10) that is proximal to an edge (11) of the printed circuit board (2).

Abstract: A portable radio telephone (1) with improved antenna radiation efficiency. The radio telephone (1) has an antenna (5) asymmetrical about a feedpoint (9). A two part housing (3, 4) partially encloses the antenna (5) and an electrically conductive surface provides a reflector (10) for antenna (5), the reflector (10) having a length that is at least half a wavelength of an intended lowest operating frequency of the radio telephone (1).