摘要:
The antenna assembly includes first and second adjacent antenna elements each having a tapered or conical antenna body with a base and an apex opposite the base. An elongated or cylindrical antenna body extends from the base of the conical antenna body, and includes a plurality of adjacent elongated or cylindrical antenna body portions, and a respective dielectric member separating adjacent cylindrical antenna body portions. Each of the first and second adjacent antenna elements are aligned along a common longitudinal axis with respective apexes in opposing relation to define a dipole antenna. Increased radiation pattern bandwidth and satisfactory pattern on the horizon may be achieved in such a biconical-type antenna.
摘要:
The antenna assembly includes first and second adjacent antenna elements each having a tapered or conical antenna body with a base and an apex opposite the base. An elongated or cylindrical antenna body extends from the base of the conical antenna body, and includes a plurality of adjacent elongated or cylindrical antenna body portions, and a respective dielectric member separating adjacent cylindrical antenna body portions. Each of the first and second adjacent antenna elements are aligned along a common longitudinal axis with respective apexes in opposing relation to define a dipole antenna. Increased radiation pattern bandwidth and satisfactory pattern on the horizon may be achieved in such a biconical-type antenna.
摘要:
An antenna assembly may include first and second adjacent antenna elements each including a conical antenna body having a base and an apex opposite the base. The antenna assembly may also include a cylindrical antenna body extending from the base of the conical antenna body, and a choke assembly including a choke shaft having a proximal end coupled to the conical antenna body and a distal end opposite the proximal end. The choke assembly may include at least one choke member carried by the distal end of the choke shaft in longitudinally spaced relation from an opposing end of the cylindrical antenna body to define at least one choke slot. Each of the first and second conical antenna bodies may be aligned along a common longitudinal axis with respective apexes in opposing relation to define a symmetrical biconical dipole antenna.
摘要:
An antenna assembly may include first and second adjacent antenna elements each including a conical antenna body having a base and an apex opposite the base. The antenna assembly may also include a cylindrical antenna body extending from the base of the conical antenna body, and a choke assembly including a choke shaft having a proximal end coupled to the conical antenna body and a distal end opposite the proximal end. The choke assembly may include at least one choke member carried by the distal end of the choke shaft in longitudinally spaced relation from an opposing end of the cylindrical antenna body to define at least one choke slot. Each of the first and second conical antenna bodies may be aligned along a common longitudinal axis with respective apexes in opposing relation to define a symmetrical biconical dipole antenna.
摘要:
The invention is a flame-retardant fabric which includes a network of interconnected yarns. At least some of the yarns comprise fiberglass fibers. At least 30 weight percent, and preferably substantially all of the fiberglass fibers in the fabric are coated with a polymer composition comprising a fiberglass binding agent. The fabric of the present invention is used as a covering in furniture, such as a flame-retardant sock to surround the core of a mattress. The invention is also a method of producing a flame-retardant fabric. A fabric of interconnected yarns is provided. At least some of the yarns comprise fiberglass fiber. Those fiberglass fibers are coated with a coating composition comprising a polymer and a fiberglass bonding agent.
摘要:
An end wrap comprising a substrate containing hair-waving chemicals. Also disclosed is a method for waving hair comprising applying end wraps having hair-waving chemicals to hair sections, activating the end wraps and dissolving the end wraps. A kit for use in the method is included.