摘要:
An apparatus comprising: a conductive member configured to receive an antenna and to form a non-conductive region between the conductive member and a ground member; and a switch having a first closed configuration and a second open configuration, the first closed configuration being configured to couple the conductive member to the ground member across the non-conductive region and to provide a first current path having a first electrical length and a first resonant frequency, the second open configuration being configured to provide a second current path having a second electrical length and a second resonant frequency, the second resonant frequency being lower than the first resonant frequency.
摘要:
An apparatus including: a first ground member; a second ground member extending from the first ground member and including a feed point, the feed point being configured to receive a signal in a first frequency band and to receive an antenna configured to operate in the first frequency band, the first ground member and the second ground member having an electrical length configured to provide a resonant mode in the first ground member and the second ground member in the first frequency band.
摘要:
A radio communication device is provided which includes a conductor board and a flat antenna disposed in the housing thereof and arranged at a distance from each other, thereby forming a coupling structure. A coupling area with a predetermined antenna volume is contained in the coupling structure between the antenna and the conductor board. At least one camera is arranged in, or adjacent to, the coupling area of the coupling structure such that they simultaneously form a component of the antenna volume of the coupling structure.