Abstract: A factory-settable optical subassembly (10) used in an optical transceiver module includes an optoelectronic converter (20), a top can (30), and a positioning element (40). The optoelectronic converter includes a housing (24) having an opening (243) for passage of light and a lens (211) for focusing light. The top can has a first through hole (34) and a coaxial second through hole (35) in communication with each other. The positioning element has a third through hole (41) and can be moved linearly to a desired position within the second through hole, where it is permanently fixed. An optical ferrule (50) can then be inserted through the first through hole and into the second through hole until it abuts the positioning element. An end of the optical ferrule is thereby located at a focal position for a selected wavelength of light emanated from the optoelectronic converter, given the characteristics of the lens.

Abstract: A small form factor transceiver module includes a cage (1) and a transceiver (2). The cage has a top wall (11), and two sidewalls (12) and a rear wall (13) integrally formed with the top wall. The transceiver received in the cage has a printed circuit board (3) and at least one optical-electric diode electrically connected to the printed circuit board. The sidewalls have two bottom boards (121), each with a flange (120). A plurality of pins (123, 125, 133) is integrally formed with and extends from the bottom boards, the sidewalls and the rear wall.

Abstract: An optical connector assembly (2) has two optical connectors (3) and a combiner (5). Each optical connector has a connector body (30) with an angled latching arm (4) formed on the connector body. The latching arm has a fixed end (41) on the connector body and a free distal end. A groove (430) is defined on the distal end. The combiner has a combiner body (6) holding the optical connectors and a cantilevered trigger arm (7). The trigger arm has a fixed end on the combiner body and a free distal end. A rod (72) is formed on the distal end of the trigger arm, and is received in the grooves of the optical connectors.

Abstract: An optical fiber converter is adapted to interconnect a first and a second optical connector together, each connector being of a different type. The optical fiber converter has a ferrule subassembly (3), a sleeve (5), a spring (4), a plug housing (2) and a receptacle housing (6). The ferrule subassembly has a first ferrule (32) having a first central hole, a second ferrule (33) having a second central hole, and a ferrule holder (34) holding the first and second ferrules together. An optical fiber (31) is retained in the first and second central holes, which are coaxially aligned. The sleeve coaxially retains the second ferrule and engages with the second optical connector. The plug housing retains the ferrule holder and is adapted to engage with the first optical connector. The receptacle housing engages with the plug housing, and is adapted to engage with the second optical connector.

Abstract: A duplex fiber optic connector device includes a first connector housing (200) for receiving a first optical fiber plug, and having a first latch member (400) unitarily molded therewith; and a second connector housing (300) for receiving a second optical fiber plug, and having a second latch member (500) unitarily molded therewith. The first latch member comprises four retention members (410, 420) each having an opening (412). The second latch member comprises four hooked members (510, 520) each having a protrusion (512). The protrusions are received in the openings such that the first latch member is in loose engagement with the second latch member. The first connector housing is thus held in a side-by-side relationship with the second connector housing with a slight relative movement, or float, allowed.

Abstract: A dual band microstrip antenna (1) made by a method of the present invention includes a dielectric substrate (11), a ground plane layer (10) attached to a bottom surface (111) of the substrate, a first and second conductive patches (21, 22) separately elevated above and parallel to a top surface (110) of the substrate, a first and second conductive posts (23, 24) electrically connecting the first and second conductive patches respectively with the ground plane layer and a first and second coaxial feeder cables (25, 26). A method for making the dual band microstrip antenna includes adjusting the height of the first and second conductive posts to achieve a good performance of the dual band microstrip antenna.

Abstract: A dual band microstrip antenna (1) has a dielectric substrate (11), a ground plane (10) attached to a bottom surface (111) of the substrate, a first and second radiating patches (21, 22), a first and second conductive posts (23, 24), and a first and second feeder cables (25, 26). The conductive posts each separately elevate a corresponding radiating patch an appropriate height above and parallel to a top surface (110) of the substrate, and electrically connect each radiating patch to the ground plane. Feeder inner conductors (250, 260) are soldered to their respective radiating patches and feeder outer conductors (251, 261) are soldered to the ground plane. Impedance matching is achieved by selecting an appropriate distance between the solder positions of the posts and inner conductors on each radiating patch.

Abstract: A multi-fiber ferrule (5) includes a ceramic body (10) and a housing (20) for combining with the ceramic body. The ceramic body has a rectangular portion (101) and two opposing latches (102) extending therefrom. A plurality of through holes (103) and a pair of guide pin channels (105) are defined through the rectangular portion between the two opposing latches. The housing defines a cavity (201), a passageway (204) communicating with the cavity, and a pair of guide pin channels (205) corresponding to the guide pin channels of the ceramic body. A plurality of V-grooves 203 for mounting fibers is formed in a floor of the cavity. The plurality of V-grooves each aligns with a corresponding through hole.

Abstract: An optical connector assembly (2) has two optical connectors (3) and a combiner (5). Each optical connector has a connector body (30) with an angled latching arm (4) formed on the connector body. The latching arm has a fixed end (41) on the connector body and a free distal end. A groove (430) is defined on the distal end. The combiner has a combiner body (6) holding the optical connectors and a cantilevered trigger arm (7). The trigger arm has a fixed end on the combiner body and a free distal end. A rod (72) is formed on the distal end of the trigger arm, and is received in the grooves of the optical connectors.

Abstract: An optical fiber converter is adapted to interconnect a first and a second optical connector together, each connector being of a different type. The optical fiber converter has a ferrule subassembly (3), a sleeve (5), a spring (4), a plug housing (2) and a receptacle housing (6). The ferrule subassembly has a first ferrule (32) having a first central hole, a second ferrule (33) having a second central hole, and a ferrule holder (34) holding the first and second ferrules together. An optical fiber (31) is retained in the first and second central holes, which are coaxially aligned. The sleeve coaxially retains the second ferrule and engages with the second optical connector. The plug housing retains the ferrule holder and is adapted to engage with the first optical connector. The receptacle housing engages with the plug housing, and is adapted to engage with the second optical connector.

Abstract: A duplex fiber optic connector device includes a first connector housing (200) for receiving a first optical fiber plug, and having a first latch member (400) unitarily molded therewith; and a second connector housing (300) for receiving a second optical fiber plug, and having a second latch member (500) unitarily molded therewith. The first latch member comprises four retention members (410, 420) each having an opening (412). The second latch member comprises four hooked members (510, 520) each having a protrusion (512). The protrusions are received in the openings such that the first latch member is in loose engagement with the second latch member. The first connector housing is thus held in a side-by-side relationship with the second connector housing with a slight relative movement, or float, allowed.

Abstract: A duplex clip (3) for converting a pair of simplex optical fiber connectors (40) into a unitary structure that operates as a duplex optical fiber connector includes a first complementary part (30) and a second complementary part (30′). The first complementary part and the second complementary part have an identical structure. The first complementary part further includes a base (31), a side wall (32) and a compartment wall (33), wherein the side wall is perpendicularly disposed at the edge of the base, and the compartment wall is mounted at the center of the base. Keys (35) on one complementary part clip into slots (34, 36) on the opposite complementary part, engaging the first and second complementary parts together and firmly fixing the simplex optical fiber connectors therebetween.

Abstract: A multi-fiber ferrule (5) includes a ceramic body (10) and a housing (20) for combining with the ceramic body. The ceramic body has a rectangular portion (101) and two opposing latches (102) extending therefrom. A plurality of through holes (103) and a pair of guide pin channels (105) are defined through the rectangular portion between the two opposing latches. The housing defines a cavity (201), a passageway (204) communicating with the cavity, and a pair of guide pin channels (205) corresponding to the guide pin channels of the ceramic body. A plurality of V-grooves 203 for mounting fibers is formed in a floor of the cavity. The plurality of V-grooves each aligns with a corresponding through hole.

Abstract: A dual band microstrip antenna (1) has a dielectric substrate (11), a ground plane (10) attached to a bottom surface (111) of the substrate, a first and second radiating patches (21, 22), a first and second conductive posts (23, 24), and a first and second feeder cables (25, 26). The conductive posts each separately elevate a corresponding radiating patch an appropriate height above and parallel to a top surface (110) of the substrate, and electrically connect each radiating patch to the ground plane. Feeder inner conductors (250, 260) are soldered to their respective radiating patches and feeder outer conductors (251, 261) are soldered to the ground plane. Impedance matching is achieved by selecting an appropriate distance between the solder positions of the posts and inner conductors on each radiating patch.

Abstract: A dual band microstrip antenna (1) made by a method of the present invention includes a dielectric substrate (11), a ground plane layer (10) attached to a bottom surface (111) of the substrate, a first and second conductive patches (21, 22) separately elevated above and parallel to a top surface (110) of the substrate, a first and second conductive posts (23, 24) electrically connecting the first and second conductive patches respectively with the ground plane layer and a first and second coaxial feeder cables (25, 26). A method for making the dual band microstrip antenna includes adjusting the height of the first and second conductive posts to achieve a good performance of the dual band microstrip antenna.

Abstract: A duplex clip (3) for converting a pair of simplex optical fiber connectors (40) into a unitary structure that operates as a duplex optical fiber connector includes a first complementary part (30) and a second complementary part (30′). The first complementary part and the second complementary part have an identical structure. The first complementary part further includes a base (31), a side wall (32) and a compartment wall (33), wherein the side wall is perpendicularly disposed at the edge of the base, and the compartment wall is mounted at the center of the base. Keys (35) on one complementary part clip into slots (34, 36) on the opposite complementary part, engaging the first and second complementary parts together and firmly fixing the simplex optical fiber connectors therebetween.