摘要:
An antenna swapping method may include tuning respective signals provided to first and second antennas in a portable electronic device to at least one frequency band. The method may also include connecting the first antenna to an uplink signal path that is for transmissions through the first and second antennas, and performing impedance matching for the first antenna. The method may further include comparing a real-time performance characteristic of the first antenna with a real-time performance characteristic of the second antenna. The method may additionally include, responsive to determining that the second antenna has a stronger real-time performance characteristic than the first antenna while the first antenna is connected to the uplink signal path, swapping from the first antenna to the second antenna by connecting the second antenna to the uplink signal path and disconnecting the first antenna from the uplink signal path, and performing impedance matching for the second antenna.
摘要:
An antenna includes a first radiating element, a second radiating element, a common ground plane between the first radiating element and the second radiating element, and a wavetrap structure coupled to the ground plane and configured to reduce correlation between the first and second radiating elements at first and second RF frequencies.
摘要:
A MIMO antenna includes first and second radiating elements and a conductive neutralization line. Each of the first and second radiating elements includes a straight portion connected to a serpentine portion. The straight and serpentine portions are configured to resonate in at least two spaced apart RF frequency ranges in response to the straight portion being electrically excited through a RF feed. The conductive neutralization line conducts resonant currents between the first and second radiating elements and has a conductive length that is configured to phase shift the conducted resonant currents to cause at least partial cancellation of currents in the first and second radiating elements which are generated by wireless RF signals received by the first and second radiating elements from each other.
摘要:
A method of operating an electronic device includes providing a plurality of antenna elements, evaluating a wireless communication performance criterion to obtain a performance evaluation, and assigning a first one of the plurality of antenna elements to a main wireless signal reception and transmission path and a second one of the plurality of antenna elements to a diversity wireless signal reception path based on the performance evaluation.
摘要:
An antenna system may include a backplate that includes an end portion. The antenna system may also include first and second antennas spaced apart from each other along the end portion of the backplate. The antenna system may additionally include a parasitic element between the first and second antennas along the end portion of the backplate.
摘要:
A multi-band antenna system may include a unitary metal backplate. The unitary metal backplate may include a notch. The antenna system may also include a first antenna that may be at least partially covered by a non-metal cover. The first antenna may be on an end of the unitary metal backplate, and may be configured to resonate in a first frequency band in response to a first electromagnetic radiation. The first frequency band may include includes cellular frequencies. The antenna system may also include a second antenna that may be recessed in the notch. The second antenna may be configured to resonate in a second frequency band in response to a second electromagnetic radiation.
摘要:
A radio antenna device for a radio communication terminal, e.g. a mobile telephone, comprising a flat ground plane and an antenna element having a radio signal feeding point disposed at the ground plane. The antenna element has a folded three dimensional box-like shape. The inventive antenna design provides for an antenna device with compact size, which at the same time is operable in UWB (Ultra Wideband) frequency regions. The antenna device may therefore advantageously be incorporated into a portable communication terminal such as a mobile telephone.
摘要:
The present invention relates to a portable communication device and an antenna unit. The device includes a display having a display surface, a transparent non-conductive display window covering the display surface of the display, and an antenna having at least one antenna element, wherein the antenna element is provided as a transparent conductive layer provided on the display cover. With this antenna solution space is freed inside the device for use for other units or for further size reductions. Light passing through the window is furthermore not blocked.
摘要:
A portable communication device and an antenna system include a part having a ground plane located within and extending through the part. A hinging section is joined to the part and stretches along an end of the part for providing rotation of the part in relation to another part around an axis and providing a hinge cavity inside the hinging section surrounding the axis. An antenna element is at least partly provided inside the hinge cavity and the ground plane extends from the part into the hinge cavity at a distance from the antenna element.
摘要:
Communications devices having a combined antenna and speaker for a radio receiving apparatus is provided. The combined antenna and speaker includes a speaker and a low profile built-in radio antenna element. The antenna element includes a flat sheet carrying a conductive antenna trace. An exciter is connected to the sheet and devised to induce vibrations therein for generating sound. This integrates a flat panel speaker with the antenna element, which saves components and may increase performance.