Abstract: A 24 GHz band-pass filter includes a step impedance resonator, a first U-shape feeding portion, a second U-shape feeding portion, short-circuit stubs and open-circuit stubs. The step impedance resonator includes a first main portion, a second main portion, and a connection portion for connecting the main portions to each other. The first main portion and the second main portion are electrically connected to a first signal input/output port and a second signal input/output port. The first U-shape feeding portion is electrically connected between the first main portion and the first signal input/output port. The second U-shape feeding portion is electrically connected between the second main portion and the second signal input/output port. The short-circuit stubs are electrically connected to coupling segments of the step impedance resonator. The open-circuit stubs are electrically connected to the first U-shape feeding portion and the second U-shape feeding portion.

Abstract: A multi-band filter includes a circuit board, a first resonator, a second resonator, and a coupling element configured to couple the first resonator with the second resonator. The coupling element includes a first coupling capacitor, a second coupling capacitor, a first short-circuited stub and a second short-circuited stub. The first coupling capacitor has two terminals electrically connected to the first portion of the first resonator and the first portion of the second resonator respectively. The second coupling capacitor has two terminals electrically connected to the second portion of the first resonator and the second portion of the second resonator respectively. The first short-circuited stub is electrically connected to the first coupling capacitor and a ground plane. The second short-circuited stub is electrically connected to the second coupling capacitor and a ground plane.

Abstract: An appressed antenna includes an antenna housing and a metal shell. The antenna housing comprising a housing and a planar antenna, where the planar antenna is bent with one part folded onto the inner surface of the housing and other part pressed onto the outer surface of the housing. The antenna housing is sleeve fitted to the metal shell with a gap between for the planar antenna to radiate. In this all-metal environment, the position of the antenna is close to the gap opening will increase radiation efficiency. By having at least a branch at the tail end of the appressed antenna, the appressed antenna can have a good return loss and antenna gain.

Abstract: A rose assembly for a door lock in which the rose assembly places the door lock in one of a locked state and an unlocked state. The rose assembly includes a rose moveable with respect to the door. The rose includes a first position, in which the door lock is locked, and a second position, in which the door lock is unlocked. The rose assembly includes a frame which surrounds the rose and in which the rose nests. Pivotal movement of the rose within the frame moves the door lock from the locked state to the unlocked state. The rose pivots at a door lever, and a pivot axis is offset from a centerline of the rose. A larger portion of the rose, defined by the pivot axis, unlocks the door when pressed and a smaller portion of the rose locks the door when pressed.

Abstract: A rose assembly for a door lock in which the rose assembly places the door lock in one of a locked state and an unlocked state. The rose assembly includes a rose moveable with respect to the door. The rose includes a first position, in which the door lock is locked, and a second position, in which the door lock is unlocked. The rose assembly includes a frame which surrounds the rose and in which the rose nests. Pivotal movement of the rose within the frame moves the door lock from the locked state to the unlocked state. The rose pivots at a door lever, and a pivot axis is offset from a centerline of the rose. A larger portion of the rose, defined by the pivot axis, unlocks the door when pressed and a smaller portion of the rose locks the door when pressed.