Abstract: An antenna system having a dynamic radiation pattern is provided. The antenna system comprises at least one antenna unit that includes an antenna dipole, a plurality of reflectors disposed around the antenna dipole, and a plurality of switches each corresponding to one of the reflectors. Each of the switches is coupled between the corresponding reflector and an electrical ground of the antenna system. The antenna system further includes a control unit configured to dynamically change a radiation pattern of the antenna system by controlling the plurality of switches.

Abstract: Techniques of designing an antenna array with antenna units controlled electronically are described. Through controlling the combination of the reflectors in each of the antenna units, a desired antenna pattern is formed, adapting to the environment, and providing reliable and efficient links between two transceivers. According to one aspect of the present invention, a switch (e.g., a diode) is used to couple two reflectors. The diode is controlled to be on or off so that the reflectors are conductively integrated or separated.

Abstract: Techniques of designing a smart antenna system are described. An antenna system includes at least two integrated antenna units arranged with a predefined angular angle therebetween to form a desired antenna pattern without any significant nulls. According to one aspect of the techniques, at least two sets of antenna units are interlaced but polarized differently to form an integrated antenna unit. Each of the antenna units is formed with an array of antennas. The antennas in an array or the antenna units in an integrated antenna unit can be selectively energized to form a desired antenna pattern in accordance with a signal determined from radio frequency signals communicated between a device equipped with the antenna system and another device (e.g., a Wi-Fi router in communication with a mobile device), where the desired antenna pattern provides an optimized antenna pattern to facilitate seamless or QoS communication between the two devices.

Abstract: Techniques of designing an antenna array with antenna units controlled electronically are described. Each of the antenna units includes a reflector, a driven element and one or more directors. A substrate with conductive material on its surface provided to support the antenna array is designed to be the reflector. The driven element is separated into two halves with each on one side of a non-metal substrate vertically bonded to the conductive substrate. Two driving lines provided to drive the two halves of the driven element are disposed on both sides of the non-metal substrate to minimize possible interactions with other elements of the antenna unit or the antenna array.

Abstract: Techniques of designing a smart antenna system are described. An antenna system includes at least two integrated antenna units arranged with a predefined angular angle therebetween to form a desired antenna pattern without any significant nulls. According to one aspect of the techniques, at least two sets of antenna units are interlaced but polarized differently to form an integrated antenna unit. Each of the antenna units is formed with an array of antennas. The antennas in an array or the antenna units in an integrated antenna unit can be selectively energized to form a desired antenna pattern in accordance with a signal determined from radio frequency signals communicated between a device equipped with the antenna system and another device (e.g., a Wi-Fi router in communication with a mobile device), where the desired antenna pattern provides an optimized antenna pattern to facilitate seamless or QoS communication between the two devices.