Abstract: A multi-band, shared-aperture, circularly polarized phased array antenna relating to the field of antenna technology is disclosed. Specifically, two multi-band, shared-aperture, circularly polarized phased array antenna designs are disclosed. By integrating multiple circularly polarized endfire antennas with different operation bands into one aperture, a shared-aperture antenna array is achieved. The bandwidth and crossband port isolation of this antenna are enhanced, and the antenna also has the properties of miniaturization, feasibility, and ease of connection with circuits.

Abstract: A slot array antenna including a smooth curved surface and planar feed structures which are respectively disposed at two ends of the smooth curved surface and are tangent to the smooth curved surface. The smooth curved surface includes at least two arcs mutually connected by smooth transition. The at least two arcs each includes an upper copper metal layer, a lower copper metal layer, and a dielectric substrate layer between the upper and lower copper metal layers. The upper copper metal layer includes radiating slots, and the adjacent radiating slots in a linear array have opposite offsets along the center line of the slot array antenna. The dielectric substrate layer includes metallic vias symmetrically arranged on both sides of the central line of the antenna to form a substrate integrated waveguide.

Abstract: A shared-aperture antenna includes a first copper metal layer; a second copper metal layer; and a dielectric substrate layer sandwiched between the first copper metal layer and the second copper metal layer. The dielectric substrate layer includes a plurality of metallized vias. The first copper metal layer is in communication with the second copper metal layer via the plurality of metallized vias. The plurality of metallized vias includes first metallized vias forming an inner circular ring and second metallized vias forming an outer circular ring with respect to the center of the antenna. The first copper metal layer, the dielectric substrate layer, the second copper metal layer, and the first metallized vias form a substrate integrated waveguide (SIW) circular cavity slot antenna. The first copper metal layer, the dielectric substrate layer, the second copper metal layer, the first metallized vias and the second metallized vias form a coaxial cavity slot antenna.

Abstract: A shared-aperture antenna includes a first copper metal layer; a second copper metal layer; and a dielectric substrate layer sandwiched between the first copper metal layer and the second copper metal layer. The dielectric substrate layer includes a plurality of metallized vias. The first copper metal layer is in communication with the second copper metal layer via the plurality of metallized vias. The plurality of metallized vias includes first metallized vias forming an inner circular ring and second metallized vias forming an outer circular ring with respect to the center of the antenna. The first copper metal layer, the dielectric substrate layer, the second copper metal layer, and the first metallized vias form a substrate integrated waveguide (SIW) circular cavity slot antenna. The first copper metal layer, the dielectric substrate layer, the second copper metal layer, the first metallized vias and the second metallized vias form a coaxial cavity slot antenna.

Abstract: A portable working light apparatus has a station bracket, a first light module and a second light module. The station bracket comprising handle bar, a middle bar and a bottom base. The first light module and the second light module are placed at two sides of the bracket station. The first light module and the second light module are rotatable with respect to a surface ground and with respect to the bracket station with a first joint rotator and a second joint rotator. The first light module and the second light module may also be detached from the bracket station.

Abstract: An assembly light apparatus has a station bracket, a fixed light module, and a portable light module. The station bracket has a fixed holder, a detachable holder and a pose adjuster structure. The fixed light module is fixed on the fixed holder. The portable light module is selectively attached on the detachable holder. The pose adjuster structure is operated to rotate to change an angle and a position of the fixed holder and the detachable holder with respect to the station bracket.

Abstract: A slot array antenna including a smooth curved surface and planar feed structures which are respectively disposed at two ends of the smooth curved surface and are tangent to the smooth curved surface. The smooth curved surface includes at least two arcs mutually connected by smooth transition. The at least two arcs each includes an upper copper metal layer, a lower copper metal layer, and a dielectric substrate layer between the upper and lower copper metal layers. The upper copper metal layer includes radiating slots, and the adjacent radiating slots in a linear array have opposite offsets along the center line of the slot array antenna. The dielectric substrate layer includes metallic vias symmetrically arranged on both sides of the central line of the antenna to form a substrate integrated waveguide.

Abstract: An assembly light apparatus has a station bracket, a fixed light module, and a portable light module. The station bracket has a fixed holder, a detachable holder and a pose adjuster structure. The fixed light module is fixed on the fixed holder. The portable light module is selectively attached on the detachable holder. The pose adjuster structure is operated to rotate to change an angle and a position of the fixed holder and the detachable holder with respect to the station bracket.

Abstract: A portable working light apparatus has a station bracket, a first light module and a second light module. The station bracket comprising handle bar, a middle bar and a bottom base. The first light module and the second light module are placed at two sides of the bracket station. The first light module and the second light module are rotatable with respect to a surface ground and with respect to the bracket station with a first joint rotator and a second joint rotator. The first light module and the second light module may also be detached from the bracket station.