Abstract: An antenna for multi-broadband and multi-polarization communication, may include a plurality of radiators configured to jointly function as one or more dipoles, a first feed terminal for a first signal of a first polarization, and a second feed terminal for a second signal of a second polarization different from the first polarization. Each radiator may be configured to contribute to resonances at two or more nonoverlapping bands. In an embodiment, the antenna may further include a third feed terminal for a third signal of the first polarization, and a fourth feed terminal for a fourth signal of the second polarization.

Abstract: A fastener includes a main body having a number of spaced ridges formed on an outer periphery thereof. The ridges are arranged along a helix. At least one of the ridges has a retainer extending in a direction that is at an angle with an extending direction of the ridge. In another embodiment, a fastener includes a main body having a number of spaced ridges formed on an outer periphery thereof. Each ridge extends along a direction that is parallel to a longitudinal direction of the main body. At least one of the ridges has a retainer extending in a direction that is at an angle with an extending direction of the ridge.

Abstract: A decorative device for furniture includes a panel defining at least one opening and a backing laminated with the panel so that at least one portion of the backing can be observed through the at least one opening. A handle assembly for furniture includes a handle and a decorative device. The decorative device includes a panel on which the handle is mounted and a backing laminated with the panel. The panel defines at least one opening so that at least one portion of the backing can be observed through the at least one opening.

Abstract: A fastener comprises a main body having a number of spaced ridges formed on an outer periphery thereof. The ridges are arranged along a helix. At least one of the ridges has a retainer extending in a direction that is at an angle with an extending direction of the ridge. In another embodiment, a fastener comprises a main body having a number of spaced ridges formed on an outer periphery thereof. Each ridge extends along a direction that is parallel to a longitudinal direction of the main body. At least one of the ridges has a retainer extending in a direction that is at an angle with an extending direction of the ridge.

Abstract: A handle assembly includes a positioning member and a handle. The positioning member includes a rear surface mounted to furniture and a front surface having no functional projection thereon. The handle includes two ends pivotally connected to two lateral surfaces of the positioning member, respectively. In another embodiment of the invention, the handle assembly includes two positioning members and a handle. Each positioning member includes a rear surface mounted to furniture and a front surface having no functional projection thereon. The positioning members further include mutually facing inner sides. The handle includes two ends pivotally connected to the inner sides of the positioning members, respectively.