Abstract: An antenna is disclosed. The antenna includes a coupling portion, a ground connection portion corresponding to the coupling portion, and a radiation body. The a radiation body further includes a first antenna portion extending from a first end of the coupling portion in a direction, a second antenna portion extending from the first end in a direction opposite to that of the first antenna portion, and a third antenna portion extending from an end of the ground connection portion in a direction surrounding the first antenna portion, wherein two gaps are provided for separating the third antenna portion from the first antenna portion and the second antenna portion respectively.

Abstract: An antenna is disclosed. The antenna includes a coupling portion, a ground connection portion corresponding to the coupling portion, and a radiation body. The a radiation body further includes a first antenna portion extending from a first end of the coupling portion in a direction, a second antenna portion extending from the first end in a direction opposite to that of the first antenna portion, and a third antenna portion extending from an end of the ground connection portion in a direction surrounding the first antenna portion, wherein two gaps are provided for separating the third antenna portion from the first antenna portion and the second antenna portion respectively.

Abstract: An antenna radiator assembly (200) and radio communications assembly (1) 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 resonator (132) comprising a tuning plate (310) operatively coupled to a tuning line (320), the tuning plate (310) being formed from part of the conductive sheet. An antenna radiator element (107) is spaced from said circuit board (210) and coupled to the feed point (130), and when viewed in plan view there is an overlapping area where an overlapping surface area of the antenna radiator element overlaps an overlapping surface area of the circuit board thereby forming a sandwiched dielectric region therebetween.

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).

Abstract: A communications device with a quarter wave antenna (11) is provided with a quarter wavelength choke that is formed by a conductive coating (14) applied to the inner wall of the housing (12) to the communications device. The conductive coating (14) is electrically coupled as a ground to antenna (11) via the ground to a printed circuit board (13) and a conductive surface to a dividing wall (18) acting as a suspended base by which to support the circuit board (13). The conductive coating (14) is extended from the antenna base over a length equal to a quarter wavelength.

Abstract: A wide beamwidth antenna system (100) having a number of monopole antenna elements (102-108) disposed on at least one surface (111,113) of a single, flexible dielectric substrate (101), a number of antenna feed members (110-116), disposed on the first surface (111) of the dielectric substrate (101), each antenna feed member (110-116) being respectively coupled to one of the monopole antenna elements (102-108), a system feed member (118), disposed on the first surface (111) of the dielectric substrate (101), a first power splitter (120), disposed on the first surface (111) of the dielectric substrate (101) and coupled between the system feed member (118) and the first one of the monopole antennae (102) and a first phase shifter (130), disposed on the first surface (111) of the dielectric substrate (101) and coupled between the first (102) and the second (104) monopole antennae. A ground plane (140) is disposed on a portion of the second surface (113) of the dielectric substrate (101).