摘要:
A portable antenna is disclosed that can be collapsed into, and erected from, a housing. There is also a pull cord mechanism arranged, when pulled, to cause the antenna to revert between the erect or collapsed configurations. The pull cord extends from the antenna to a position in easy reach of the soldier's hand so that the antenna can be erected/collapsed remotely.
摘要:
A multi-band antenna can be associated with at least one electronic device. The antenna includes a single power supply point; at least one first resonant circuit for resonating at a first frequency; and at least one second resonant circuit for resonating at a second frequency. The resonant circuits are electrically connected to each other. The connection point between the resonant circuits corresponds to the single power supply point. The antenna can be used simultaneously over multiple bands.
摘要:
The present invention discloses are configurable MIMO (Multiple-Input Multiple-Output) antenna for vehicles. The antenna comprises a balanced antenna and an unbalanced antenna mounted on a supporting substrate. Both the balanced antenna and the unbalanced antenna are located towards the same end of the substrate and the substrate comprises a substantially triangular planar element.
摘要:
The present invention resides in a reconfigurable antenna. The antenna comprises a balanced antenna and an unbalanced antenna mounted on a supporting substrate, with both the balanced antenna and the unbalanced antenna located at the same end of the substrate. The antenna may be configured as a chassis antenna for use in a portable device or configured for Multiple-lnput-Multiple-Output (MIMO) applications.
摘要:
An antenna, including a ground plane, a dielectric substrate formed on the ground plane, a broadband dual-polarized dipole radiating element located on the dielectric substrate, a horizontally polarized dipole radiating element located on the dielectric substrate adjacent to the broadband dual-polarized dipole radiating element and having a projection parallel to a first axis, which first axis intersects the broadband dual-polarized dipole radiating element, a vertically polarized dipole radiating element located on the dielectric substrate adjacent to the broadband dual-polarized dipole radiating element and having a projection parallel to a second axis, which second axis intersects the broadband dual-polarized dipole radiating element and is orthogonal to the first axis and a feed network for feeding the broadband dual-polarized, vertically and horizontally polarized dipole radiating elements.
摘要:
A system having first and second disposable or rechargeable batteries with outer surfaces. RFID tags having similar resonant frequencies are positioned on the outer surfaces of the batteries. The RFID tags in the system are positioned adjacent to one another to increase signal coupling with a reader.
摘要:
A wireless IC device comprises a wireless IC chip (5), a power supply circuit board (140) connected to the wireless IC chip and a radiation plate (20), to which the power supply circuit board is adhered or disposed adjacent thereto. The power supply circuit board includes a power supply circuit including a resonant circuit having a predetermined resonant frequency. The radiation plate is arranged to perform at least one of radiation of a transmission signal supplied from the power supply circuit, and receiving of a reception signal and supplying of the reception signal to the power supply circuit. The resonant circuit is a distributed-constant resonant circuit.