Abstract: A dual polarization log-periodic antenna apparatus includes a log-periodic antenna and a conical reflector. The conical reflector is arranged below the log-periodic antenna. The log-periodic antenna is configured to transmit a plurality of radio waves. The conical reflector is configured to reflect the radio waves transmitted by the log-periodic antenna.

Abstract: An antenna board alignment method includes following steps: A microprocessor finds a central positioning point on an antenna board to locate a positioning rectangle. The microprocessor finds four inner positioning points on the positioning rectangle to locate the antenna board. The microprocessor finds a plurality of outer positioning points at a plurality of edge locations on the antenna board to locate at least one edge of the antenna board.

Abstract: A radio frequency connector includes an outer shell, a connector and a waterproof gasket. The outer shell is provided with partition walls opposite to each other and convex structures protruding toward the partition walls. The first side of the connector is provided with a plurality of plug terminals. The waterproof gasket is disposed surrounding all the plug terminals. When the connector is accommodated in the outer shell, the plug terminal is received corresponding to the through hole of the partition wall. The convex structures abut the second side opposite to the first side to push the connector toward the partition wall for reducing the distance between the first side and the partition wall. Thus, the waterproof gasket can be tightly sandwiched between the first side and the partition wall to enhance the waterproof effect.

Abstract: A telecommunication box connector with a protective outer shield includes a connector main body and a protective outer shield covering onto the connector main body. The connector main body includes a first external connecting portion. The protective outer shield includes a shield member, a second connecting portion protruding out of the shield member and an inner connecting portion formed inside the shield member. The protective outer shield is connected to the first outer connecting portion via the inner connecting portion in order to cover and protect the connector main body. The protective outer shield is installed onto an installation portion of a telecommunication box via the second outer connecting portion. Consequently, it is able to cover and protect the connector main body from damages due to cold weather while maintaining the overall weight with a slight increase only.

Abstract: A stable lifting structure of a lifting desk contains: a first tube and a second tube movably fitted with the first tube so as to form a movable desk leg. The first tube includes a base, and the second tube includes a limitation sleeve. A movable cylinder is accommodated in the movable desk leg so that a body of the movable cylinder is locked on the first tube, and a column of the movable cylinder is connected on the second tube and is driven to expend or retract by an abutting plate and a pull cable. The first tube includes a slidable sleeve, and an inner diameter of the slidable sleeve corresponds to an outer diameter of the second tube. The slidable sleeve includes multiple recesses, a roll peg is accommodated in each recess, and each roll peg partially exposes outside the second tube via each recess.

Abstract: A coaxial frequency-separating connector of the present invention applies a first conducting element to receive a multi-frequency signal from a multi-frequency transmission element, and applies a multi-frequency dividing circuit to divide the multi-frequency signal to a plurality of different frequency signals such that the different frequency signals are respectively transmitted to the first coaxial cable and the second coaxial cable of a second conducting element. Furthermore, a first frequency contacting end to which a first RF element is connected and a second frequency contacting end to which a second RF element is connected are respectively connected on one end of the first coaxial cable and one end of the second coaxial cable. Accordingly, two RF elements with two different frequency bands can use only one coaxial frequency-separating connector to connect to a transmission element.

Abstract: A coaxial connector of the present invention applies a first conducting element to receive a multi-frequency signal from a multi-frequency transmission element, and applies a multi-frequency dividing circuit to divide the multi-frequency signal to a plurality of different frequency signals such that the different frequency signals are respectively transmitted to the first coaxial cable and the second coaxial cable of a second conducting element. Furthermore, a first frequency contacting end to which a first RF element is connected and a second frequency contacting end to which a second RF element is connected are respectively connected on one end of the first coaxial cable and one end of the second coaxial cable. Accordingly, two RF elements with two different frequency bands can use only one coaxial connector to connect to a transmission element.

Abstract: An outdoor external lightning arrestor includes a transmission line, a signal suppression circuit, insulation housing, a ground member, and a metal housing. The signal suppression circuit includes a circuit board thereon. A first connector, a second connector, and at least one protector are electrically connected to the circuit board. The first connector is electrically connected to the transmission line. The insulation housing is assembled to the circuit board and ground member, and the first resilient plate at one side of the ground member is in electrical contact with the second connector. The insulation housing is installed inside the metal housing, so that the second resilient plate at the other side of the ground member is in electrical contact with the metal housing.

Abstract: A substrate has a front face and a back face. A first antenna and a second antenna are arranged on the front face in interlaced manner such that a first signal feeding point of the first antenna and a second signal feeding point of the second antenna are arranged on the same face or the same location. A ground face is arranged on the back face of the substrate and opposite to the first antenna and the second antenna. A cross-connect element is fixed on the ground face and electrically connected to the second antenna. The first antenna and the second antenna become a dual polarization array antenna structure for providing multi-band operation when receiving or transmitting a signal flowing through a first metal wire or a second metal wire at a length of a half of a wavelength of the signal.

Abstract: An antenna fixing structure includes an antenna box and a fixing frame. The antenna box includes a casing with a first circumference defined by a first center and a first radius, and the casing has equidistant first connecting portions disposed along the first circumference. The fixing frame includes a carrying board with a second circumference defined by a second center and a second radius, and the carrying board has equidistant second connecting portions disposed along the second circumference, so that the first connecting portions and the second connecting portions can be rotably installed with respect to the first and second centers and coupled to each other. Therefore, the antenna box can be rotated to a predetermined position and then fixed to the fixing frame, and the antenna fixing structure has the effect of adjusting the direction, position or angle of an antenna.

Abstract: An antenna sheath includes a tubular member and a base unit. One end of the tubular member is formed with two lateral boards corresponding to each other, an opening is formed between the two lateral boards, each of the lateral boards is formed with a shaft hole, and the inner periphery of at least one of the two shaft holes is formed with at least one first convex tooth; the base unit is installed with a connector inserted in the opening and formed with two lateral surfaces corresponding to each other, the two lateral surfaces are respectively installed with a rotation shaft correspondingly pivoted in the shaft hole, the outer periphery of at least one of the two rotation shafts is formed with plural second convex teeth annularly arranged, and the first convex teeth is engaged between any two of the adjacent second convex teeth.

Abstract: In a quick-release fixing structure for an electronic equipment, the electronic equipment includes a plurality of holes and a snap slot, and the quick-release fixing structure includes a substrate, a turning element and a plurality of fixing elements. The substrate includes a plurality of grooves and a port, and each groove includes a first groove hole and a second groove hole interconnected to the first groove hole, and the second groove hole is greater than the first groove hole. The turning element is coupled to the substrate and includes a bump exposed from the port and snapped into the snap slot. Each fixing element is passed through each first groove hole and fixed to each hole. The turning element can be turned to push the electronic equipment to move each fixing element into each second groove hole, and separate the electronic equipment from the substrate.

Abstract: A coaxial connector includes a body, a female connector, and a detecting structure. The female connector has a pillar, and the pillar connects with the body. The detecting structure has a movable socket and a flexible conductor, wherein the movable socket is slidably sheathed on the pillar, and an interval space is formed between the movable socket and the pillar. The flexible conductor is located in the interval space, and has a detecting terminal. A part of the detecting terminal exposes to outside the movable socket, the movable socket pushes the flexible conductor toward the body in order to electrically connect the detecting terminal with the body. Hence, an RF (radio frequency) signal switching element on a mother board can be driven to switch between a build-in RF unit and an external RF unit.

Abstract: An integrated radio frequency connector installed in a main board includes a built-in radio frequency part, a connecting element and conductive wire. The connecting element is installed and electrically coupled to the built-in radio frequency part, and the connecting element has a conductive terminal protruded from the built-in radio frequency part, and an end of the conductive wire is electrically coupled to the conductive terminal, and the other end of the conductive wire is electrically coupled to the main board to achieve a modular design, so as to facilitate the assembling procedure.

Abstract: The present invention relates to a filter device, the filter device includes a housing provided with a through-hole; and a filter structure includes a signal line; a wave filter connected to the signal line, the size of the periphery of the wave filter smaller than the diameter of the through-hole; a connecter connected to one end of the signal line and connected electrically with the wave filter; wherein the filter structure is arranged from the outside of the housing through the through-hole correspondingly, so that the signal line and the wave filter are arranged at the inside of the housing and the connecter is fixed at the through-hole. Hence, the filter structure is locked and fixed optionally from the outside or from the inside of the housing to increase the convenience of the whole assembly.

Abstract: An integrated radio frequency connector installed in a main board includes a built-in radio frequency part, a connecting element and conductive wire. The connecting element is installed and electrically coupled to the built-in radio frequency part, and the connecting element has a conductive terminal protruded from the built-in radio frequency part, and an end of the conductive wire is electrically coupled to the conductive terminal, and the other end of the conductive wire is electrically coupled to the main board to achieve a modular design, so as to facilitate the assembling procedure.

Abstract: A coaxial connector includes a body, a female connector, and a detecting structure. The female connector has a pillar, and the pillar connects with the body. The detecting structure has a movable socket and a flexible conductor, wherein the movable socket is slidably sheathed on the pillar, and an interval space is formed between the movable socket and the pillar. The flexible conductor is located in the interval space, and has a detecting terminal. A part of the detecting terminal exposes to outside the movable socket, the movable socket pushes the flexible conductor toward the body in order to electrically connect the detecting terminal with the body. Hence, an RF (radio frequency) signal switching element on a mother board can be driven to switch between a build-in RF unit and an external RF unit.