Abstract: A segmented radio antenna that uses electrically conductive quick connect/disconnect devices between segments to accomplish a conversion from efficiency on one band to efficiency on another band AND/OR to convert quickly and easy between center-fed and end-fed (or a variety of feed-point configurations). The innovative use of flexible wire segments and connectors reduces the overall weight and cost of the antenna when compared to the use of traps or telescoping antennas.

Abstract: A wireless terminal is described, which is formed from a module (20) comprising a substrate, RF components (32, 33), an antenna (25), notably of the PIFA type, and a linkage part (30) for linking the antenna to the substrate. The RF components are placed in the vicinity of the linkage part or even on the linkage part without degrading the operation of the antenna. By placing the RF components on this link, an area is made available for circuitry on the substrate.

Abstract: An antenna is disclosed to efficiently ionize the atmosphere for the purpose of reducing the aerosol counts, and therefore the number of poluted particles in suspension in the atmosphere, by deposition to ground. The antenna includes peripheral nodes and a central node. Each of the peripheral nodes is connected to adjacent peripheral nodes through peripheral spokes. The peripheral nodes are also connected to the central node through radial spokes. Electric power is applied to the peripheral spokes and the radial spokes causing the antenna to charge the atmosphere through the emission of ions. The antenna minimizes an attenuation factor that reduces ionization efficiency and reduces the land requirements for its installation.

Abstract: A three-dimensional antenna includes a substrate, a radiator, a second radiator, a signal feeding element, and a grounding element. The radiator is installed on the substrate. The radiator includes a first child radiator and a second child radiator. The first child radiator has a first end and a second end. The second child radiator has a first end and a second end, wherein the second end of the second child radiator is coupled to the second end of the first child radiator. The second radiator is coupled to the radiator. The signal feeding element is coupled to the first end of the first child radiator. The grounding element is coupled between the substrate and the first end of the second child radiator. The first child radiator and the second child radiator form an inverted V-shape installed on the substrate.

Abstract: A variable antenna apparatus for a mobile terminal. The variable antenna apparatus includes a radiation component that is rotatably coupled with the mobile terminal, a feeding component that is adjacent to a first end part of the radiation component and electrically connected to a radio frequency board of the mobile terminal. A grounding component is adjacent to the first end part of the radiation component and selectively connected to a ground of the radio frequency board as the radiation component is rotated. The antenna apparatus is accommodated in a terminal so that it is possible to conveniently carry the terminal, and the antenna is rotatably protruded from the terminal during a telephone call, such that appropriate antenna gain is achieved.

Abstract: A broadband H.F. directional sky-wave antenna system comprises a plurality f interconnected, vertical, zig-zag, antenna sections of predetermined increasing height. A counterpoise is utilized to balance the antenna. Power is coupled to the shortest zig-zag section via an impedance matching transformer. A resistance is used to terminate the antenna in its characteristic impedance.

Abstract: A termination for a VHF inverted-V half-rhombic antenna is described, consisting of a transformer terminated into a length of high attenuation coaxial cable acting as a power dissipation line.

Abstract: A terminated, end-fed inverted V antenna provides continuous coverage over the 1.8 to 30 MHz frequency range. A special matching transformer is an integral part of the antenna system.