Abstract: Disclosed are systems and methods which provide multi-band antenna elements using multiple radiating branches interconnected with a feed plate, thereby providing a multi-band antenna element having a single feed. Additionally or alternatively, a wide band antenna configuration is provided utilizing multiple radiating branches of a multi-band antenna element of the present invention. Embodiments utilize one or more reflectors, such as to provide directivity and/or radiation pattern shaping, including utilizing one or more radiating branches of a multi-band antenna element as a reflector for another one or more radiating branches of the multi-band antenna.

Abstract: Disclosed are systems and methods which provide a tapered conductor strip adapted for broadband wireless communication. Embodiments provide a conductor strip which is curved along its face, thereby providing an aperture taper. The conductor strip configured to provide an aperture taper may be placed over a planar ground plane to form a wideband tapered strip antenna element. Embodiments further provide a conductor strip which is curved along an edge or edges thereof, thereby providing an impedance taper. The dimensions of the impedance taper are preferably selected to provide a desired characteristic impedance with respect to an antenna element formed therefrom. Embodiments may further include a shorting pin or shorting plate configuration to generate an additional mode.

Abstract: A time division duplex repeater system includes two antennas, a switched directional amplifier and control circuitry. The antennas serve first and second coverage areas where the second coverage area is an extension of the first coverage area. The switched directional amplifier is coupled between the two antennas and has a single amplifier. The control circuitry is coupled to the switched directional amplifier and to receive inputs of the antennas. The control circuitry receives transmissions from the coverage areas and applies control signals to the switched directional amplifier to control the direction of transmission. The control circuitry may control the amplifier gain and direction of transmission based on the input signal power level.

Abstract: A planar inverted-F antenna is described that is provided with a capacitive load that allows the dimensions of the antenna to be reduced from a conventional .lambda./4 to .lambda./8. To maintain good bandwidth and impedance matching in spite of the presence of the capacitive load, a capacitive feed is also provided.