An electronic apparatus capable of reducing specific absorption rate (SAR) is disclosed. The antenna device includes an antenna element to which power is supplied, and at least one resonant antenna element which is disposed such that the longitudinal direction thereof and the longitudinal direction of the antenna element are substantially parallel to each other and which can resonate with the antenna element.

An antenna apparatus includes a first feed line and a second feed line spaced apart from each other, a ground plane surrounding a portion of each of the first and second feed lines, a first end-fire antenna pattern and a second end-fire antenna pattern having different sizes spaced apart from each other, spaced apart from the ground plane, and respectively electrically connected to the first and second feed lines, and a first feed via and a second feed via respectively electrically connecting the first and second feed lines to the first and second end-fire antenna patterns. The first feed via extends away from the first feed line in one direction, and the second feed via extends away from the second feed line in another direction different from the one direction.

An electronic device is described. This electronic device includes: an interface circuit; and an antenna having a radiator and multiple pairs of reflectors arranged along different axes passing through the radiator in a horizontal plane. A given pair of reflectors includes reflectors on opposite sides of the radiator and along a given axis. During operation, the interface circuit provides control signals to switching elements that selectively electrically couple one or more of the reflectors in the pairs of reflectors to ground, where the one or more of the reflectors modify an antenna radiation pattern of the radiator. Then, the interface circuit communicates, via the antenna, a packet or a frame with a second electronic device, where the communication involves transmitting or receiving wireless signals corresponding to the packet or the frame.

An electronic device that communicates a packet or a frame is described. This electronic device includes: at least an antenna having an antenna radiation pattern; an interface circuit; and an antenna cover that includes an integrated static lens, where the antenna cover is selected from a set of antenna covers that includes different integrated static lenses. During operation, the interface circuit may transmit, from the antenna, wireless signals corresponding to the packet or the frame, where the integrated static lens modifies the antenna radiation pattern of the antenna. For example, the integrated static lens may cause the wireless signals to converge or diverge. Alternatively, the integrated static lens may change an angular elevation of the antenna radiation pattern and/or may provide a correction for pathloss as a function of angle. Note that the integrated static lens may be a stepwise approximation to a predefined function.

Provided is an antenna device which includes: an antenna element (31) that transmits or receives a radio wave; a radome (20) that covers the antenna element (31); and one first wave director (21) or a plurality of first wave directors (21) that is provided on at least any one of an external surface or an internal surface of the radome (20).

Provided is an antenna device which includes: an antenna element (31) that transmits or receives a radio wave; a radome (20) that covers the antenna element (31); and one first wave director (21) or a plurality of first wave directors (21) that is provided on at least any one of an external surface or an internal surface of the radome (20).

A system and method for optimizing the performance for MIMO are provided, the system including multiple antennas, including at least one modal antenna, wherein each of the at least one modal antenna has multiple modes corresponding to multiple radiation patterns, and a processor coupled to the multiple antennas and configured to select a mode among the multiple modes to optimize signal quality for each time interval based on a CQI by considering envelop correlation effects.

A system and method for optimizing the performance for MIMO are provided, the system including multiple antennas, including at least one modal antenna, wherein each of the at least one modal antenna has multiple modes corresponding to multiple radiation patterns, and a processor coupled to the multiple antennas and configured to select a mode among the multiple modes to optimize signal quality for each time interval based on a CQI by considering envelop correlation effects.

The invention relates to a slot antenna comprising the following elements: a peripheral housing wall, a rear wall, a feed element, and a feed point. Said slot antenna is characterized in that: the feed element is electrically connected to the housing wall at two opposing connection points; the feed element is narrower who at the connection points than in the middle region between the connection points; the feed point is located on the edge of the middle region between the connection points, as well as a corresponding opening in the housing wall; a conductor for feeding the slot antenna can be connected to the feed point; and the feed element comprises at least one slot.

An FM broadcasting antenna is described having a mast, a pair of forward-facing elements, and a pair of rear-facing elements. The antenna makes use of angles between the antenna elements and the mast, a multi-diameter feed line, a multi-diameter center pin, and mounting points of a strap extending between at least one of the forward-facing elements, at least one of the rear-facing elements and the center pin, for achieving desired broadband and performance characteristics.