Abstract: A method of assembling an antenna aperture from a plurality of antenna aperture segments is described. The method may include placing a first aperture segment relative to a second aperture segment to partially form the antenna aperture. Furthermore, an overlap of the first aperture segment overlaps a complementary underlap of the second aperture segment at a seam. The method may also include joining the overlap of the first aperture segment to the underlap of the second aperture segment to partially form the antenna aperture.

Abstract: An antenna and method for using the same are disclosed. In one embodiment, an antenna comprises a radial waveguide; an aperture operable to radiate radio frequency (RF) signals in response to an RF feed wave fed by the radial waveguide; and a radio frequency (RF) choke operable to block RF energy from exiting through a gap between outer portions of the waveguide and the aperture.

Abstract: A method of assembling an antenna aperture from a plurality of antenna aperture segments is described. The method may include placing a first aperture segment relative to a second aperture segment to partially form the antenna aperture. Furthermore, an overlap of the first aperture segment overlaps a complementary underlap of the second aperture segment at a seam. The method may also include joining the overlap of the first aperture segment to the underlap of the second aperture segment to partially form the antenna aperture.

Abstract: A composite stack-up for an antenna is described. In one embodiment, the antenna is a flat panel metamaterial antenna. In one embodiment, an antenna assembly comprises an antenna element layer having an upper side and a lower side; a first set of one or more layers forming an upper stack bonded to the upper side of the antenna element layer and being are at least partially transparent to radio frequency (RF) radiation; and a second set of one or more layers forming a lower stack bonded to the lower side of the antenna element layer, where the antenna element layer, upper stack and lower stack are bonded together to form a composite stack.

Abstract: An antenna with a clamping mechanism and a method for using the same are disclosed. In one embodiment, an antenna comprises a radial waveguide, an aperture operable to radiate radio frequency (RF) signals in response to an RF feed wave fed by the radial waveguide, and one or more clamping devices to apply a compressive force between the waveguide and the aperture.

Abstract: Techniques and mechanisms for providing a low-profile terminal for satellite communication. In an embodiment, a communication terminal includes a radome, an array of radio frequency (RF) elements and a foam layer disposed therebetween. The foam layer includes a first side and a second side opposite the first side, wherein the array of RF elements and the radome are coupled to the foam layer via the first side and the second side, respectively. The communication device provides contiguous structure between the radome and the array of RF elements. In another embodiment, the first side forms a machined surface which contributes to flatness of one or more antenna panels having the array of RF elements disposed therein or thereon.

Abstract: An antenna with a clamping mechanism and a method for using the same are disclosed. In one embodiment, an antenna comprises a radial waveguide, an aperture operable to radiate radio frequency (RF) signals in response to an RF feed wave fed by the radial waveguide, and one or more clamping devices to apply a compressive force between the waveguide and the aperture.

Abstract: Techniques and mechanisms for providing a low-profile terminal for satellite communication. In an embodiment, a communication terminal includes a radome, an array of radio frequency (RF) elements and a foam layer disposed therebetween. The foam layer includes a first side and a second side opposite the first side, wherein the array of RF elements and the radome are coupled to the foam layer via the first side and the second side, respectively. The communication device provides contiguous structure between the radome and the array of RF elements. In another embodiment, the first side forms a machined surface which contributes to flatness of one or more antenna panels having the array of RF elements disposed therein or thereon.

Abstract: A method of assembling an antenna aperture from a plurality of antenna aperture segments is described. The method may include placing a first aperture segment relative to a second aperture segment to partially form the antenna aperture. Furthermore, an overlap of the first aperture segment overlaps a complementary underlap of the second aperture segment at a seam. The method may also include joining the overlap of the first aperture segment to the underlap of the second aperture segment to partially form the antenna aperture.

Abstract: An antenna and method for using the same are disclosed. In one embodiment, an antenna comprises a radial waveguide; an aperture operable to radiate radio frequency (RF) signals in response to an RF feed wave fed by the radial waveguide; and a radio frequency (RF) choke operable to block RF energy from exiting through a gap between outer portions of the waveguide and the aperture.

Abstract: A system for ablating material in vein grafts includes an ablation burr that is rotated by a driveshaft. The ablation burr preferably includes one or more channels, blades or other mechanisms that direct ablated material and liquid proximally and/or outwardly against a vessel wall. Aspiration is used to remove ablated material and liquid from the treatment area. Finally, methods for treating vein grafts and original native arteries are disclosed.