Patent application number | Description | Published |
20110205119 | Dual-Beam Sector Antenna and Array - A low sidelobe beam forming method and dual-beam antenna schematic are disclosed, which may preferably be used for 3-sector and 6-sector cellular communication system. Complete antenna combines 2-, 3- or -4 columns dual-beam sub-arrays (modules) with improved beam-forming network (BFN). The modules may be used as part of an array, or as an independent 2-beam antenna. By integrating different types of modules to form a complete array, the present invention provides an improved dual-beam antenna with improved azimuth sidelobe suppression in a wide frequency band of operation, with improved coverage of a desired cellular sector and with less interference being created with other cells. Advantageously, a better cell efficiency is realized with up to 95% of the radiated power being directed in a desired cellular sector. | 08-25-2011 |
20120280878 | Multiband Antenna - A multiband antenna is provided having a longitudinal ground plane and several linear arrays of radiating elements mounted on the ground plane. A first set of first radiating elements may be disposed lengthwise along a center of the ground plane. The first radiating elements may be dimensioned to operate in a first frequency band, such a frequency range of about 790-960 MHz. A second set of second radiating elements may also be disposed lengthwise along the center of the ground plane. The second radiating elements may be dimensioned to operate in a second frequency band, such as a frequency range of about 1710-2170 MHz. A third set of third radiating elements is disposed lengthwise on the ground plane on a first side of the first and second sets of radiating elements. The third radiating elements may be dimensioned to operate at a third frequency band, such as about 2.5-2.7 GHz and/or 3.4-3.8 GHz. The fourth set of fourth radiating elements is disposed lengthwise on the ground plane on a second side of the first and second sets of radiating elements. The fourth radiating elements are dimensioned to operate in the same frequency band as the third radiating elements. | 11-08-2012 |
20130082797 | MICROSTRIP TO AIRSTRIP TRANSITION WITH LOW PASSIVE INTER-MODULATION - A microstrip to airstrip transition is provided. The microstrip to airstrip transition includes a ground plane, a printed circuit board, a microstrip, a solder mask, and an airstrip. The ground plane has first and second sides. The printed circuit board has first and second sides and is disposed on the first side of the ground plane. The microstrip is disposed on a portion of the first side of the printed circuit board, and the solder mask is disposed over at least a portion of the microstrip. The airstrip is disposed over the at least portion of the solder mask, and the solder mask prevents direct contact between the microstrip and the airstrip. | 04-04-2013 |
20150318876 | Antenna Array With Integrated Filters - An exemplary antenna system has first and second antenna elements, where a diplexer is connected to each second element. First phase shifters are connected to the first elements and to the diplexers, and second phase shifters are connected to the diplexers, but not to the first elements. Either a different bandpass filter is connected to the first and second phase shifters or a single multiplexer is connected to all phase shifters. The antenna system can be used to support communications over first and second sub-bands with independent beam tilts and equivalent beamwidths, where all of the elements are used for the first sub-band, and the second elements, but not the first elements, are used for the second sub-band. Each first element is separated from an adjacent element by a first distance, and each second element is separated from an adjacent element by a second distance different from the first distance. | 11-05-2015 |
Patent application number | Description | Published |
20090189826 | Phase Shifter And Antenna Including Phase Shifter - A phase shifter includes two or more conductive strips, an input line and a wiper coupled to both the input line and the conductive strips. Rotation of the wiper about a pivot point alters the path lengths between the input line and output ports or antenna elements connected to the conductive strips. The wiper is a multi-bladed wiper. Phase errors in multi-bladed wiper-type phase shifters are reduced. Arrangements for reduction of phase shifter size or increase in phase shift range are described. | 07-30-2009 |
20110043425 | DUAL BAND BASE STATION ANTENNA - A high band element and an antenna including a plurality of high band elements are provided. The high band element can include directors disposed above four dipoles, and the antenna can include a plurality of low band elements configured to accommodate the plurality of high band elements. The low band elements can be configured in a 1-2-2-2-1 arrangement or a 2-2-2-2-1 arrangement. | 02-24-2011 |
20120280879 | Tri-Pole Antenna Element And Antenna Array - A dual polarized base station antenna is provided, including a reflector having a longitudinal axis and an array of tri-pole elements disposed on the reflector. Each tri-pole element has a first side arm and a second side arm. The tri-pole element also includes a center arm which is approximately perpendicular to the first and second side arms. The tri-pole elements are oriented such that either the side arms or the center arm are parallel to the longitudinal axis of the reflector. The antenna further includes a feed network having a first signal path coupled to the first arms of the tri-pole elements and a second signal path coupled to the second anus of the tri-pole elements. In this example, the array of tri-pole elements produces a cross-polarized beam at +45 degrees and −45 degrees from the longitudinal axis. Tri-pole arrays may be used in a multiband antenna. | 11-08-2012 |
20150070230 | MULTI-BEAM ANTENNA WITH MODULAR LUNEBURG LENS AND METHOD OF LENS MANUFACTURE - A multiple beam antenna system is described. The system may include a mounting structure, a first wireless access antenna, a second wireless access antenna, and a radio frequency lens. The first and second wireless access antennas may be mounted to the mounting structure. Columns of radiating elements of the first and second wireless access antennas may be aligned with the radio frequency lens. The radio frequency lens may be modular in a longitudinal or radial direction, or in both directions. The radio frequency lens may include a plurality of compartments arranged to form a first cylinder made up of concentric, coaxial cylinders and a plurality of dielectric materials in at least some of the plurality of compartments. | 03-12-2015 |
20150091767 | Lensed Base Station Antennas - A lensed antenna system is provided. The lensed antenna system includes a first column of radiating elements having a first longitudinal axis and a first azimuth angle, and, optionally, a second column of radiating elements having a second longitudinal axis and a second azimuth angle, and a radio frequency lens. The radio frequency lens has a third longitudinal axis. The radio frequency lens is disposed such that the longitudinal axes of the first and second columns of radiating elements are aligned with the longitudinal axis of the radio frequency lens, and such that the azimuth angles of the beams produced by the columns of radiating elements are directed at the radio frequency lens. The multiple beam antenna system further includes a radome housing the columns of radiating elements and the radio frequency lens. There may be more or fewer than two columns of radiating elements. | 04-02-2015 |