Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8130165 | Phase shifter with branched transmission lines having at least one sideways movable dielectric body and antenna array formed therefrom There is disclosed an electromagnetic transmission line arrangement with a phase shifter, comprising at least one conductive branch line (51a,51b) extending from a junction point (51c) to an associated output port, for the p... | 03/06/2012 |
| 8102330 | Dual band circularly polarized feed Dual band antenna systems and methods providing isolation between bands are provided. The system includes a pair of superimposed antenna radiating elements, each of which is connected to an associated feed network. The feed networks may comprise a quadrature hybrid ... | 01/24/2012 |
| 8098209 | Systems, methods and devices for improved imaging The present invention provides devices, systems and methods for imaging and transmitting images. In particular, the present invention provides, systems, methods and devices for free-space polarization modulation. ... | 01/17/2012 |
| 8081135 | Antenna arrays with dual circular polarization The invention consists of an antenna array, for the reception of two frequency bands, comprising two pairs of radiating elements and an network for excitation of these elements for the reception of one of the bands. The radiating elements are positioned so as to fre... | 12/20/2011 |
| 8081134 | Rhomboidal shaped, modularly expandable phased array antenna and method therefor A modularly expandable, phased array antenna having a rhomboidal shaped antenna aperture formed by a plurality of rhomboidal shaped subarrays. Each subarray has a rhomboidal shaped printed wiring board on which is formed a plurality of antenna elements, where the el... | 12/20/2011 |
| 8077111 | Optimized radiation patterns An antenna arrangement comprising at least two antenna arrays, each array comprising a plurality of radiating elements being arranged so as to have at least a plurality of corresponding radiating element positions, wherein for each radiating element there is associa... | 12/13/2011 |
| 8059057 | Reduced inductance interconnect for enhanced microwave and millimeter-wave systems According to one embodiment of the present invention, a microwave or millimeter wave module includes a dielectric layer having a pocket formed substantially through the dielectric layer. The dielectric is attached to a metal substrate. The pocket has substantially v... | 11/15/2011 |
| 8026863 | Transmit/receive module communication and control architechture for active array A distributed control system for an active array antenna system is disclosed. In an exemplary embodiment, the array system employs many transmit/receive (T/R) modules each with an associated radiator element, a phase shifter element and a set of RF switch elements t... | 09/27/2011 |
| 8018392 | Antenna element and semiconductor device An antenna element includes: a radio transceiver that transmits and receives a radio wave; a signal input pad; a ground layer; an antenna that has a connection portion for electrically connecting the radio transceiver to the ground layer and the signal input pad; a ... | 09/13/2011 |
| 7999755 | Method and apparatus for quadrifilar antenna with open circuit element terminations A quadrifilar antenna having helical windings is fed by a phase shift feed network, each winding having an open circuit termination element, the phase shift feeding network having forward directional phase shift paths from a feed input to phase shift feed output por... | 08/16/2011 |
| 7994999 | Microstrip antenna A microstrip antenna that can be linear, co-circular, or dual-circularly polarized having co-planar radiating elements and operating at dual frequency bands wherein an inner radiating element is surrounded by and spaced from an outer radiating element. Each radiatin... | 08/09/2011 |
| 7952532 | Antenna device, feed circuit, and radio-wave transmission/reception method An antenna device of the invention comprises divider/combiner means 12 that divides or combines a received signal into signals having a first phase distribution represented by an odd function, phase adding/removing means 14-1 that adds phases ha... | 05/31/2011 |
| 7907100 | Phased array antenna with extended resonance power divider/phase shifter circuit A phased array for controlling a radiation pattern of an array of antennas includes a plurality of antenna ports, a first tunable element connected in series between each respective pair of adjacent antenna ports, and a second tunable element connected in parallel w... | 03/15/2011 |
| 7884776 | High power integrated circuit beamforming array In one embodiment, an integrated circuit antenna array is provided that includes: a low voltage substrate supporting an RF transmission network, and a high voltage substrate bonded to the low voltage substrate, the high voltage substrate supporting a plurality of an... | 02/08/2011 |
| 7884777 | Free-space-optically-synchronized wafer scale antenna module osillators In one embodiment, a device is disclosed that includes: a first substrate, a plurality of antennas adjacent the first substrate; a plurality of oscillators integrated in the first substrate, each oscillator providing an output signal to drive a corresponding subset ... | 02/08/2011 |
| 7812780 | Antenna architecture and LC coupler Disclosed is an antenna architecture for the non-reacting connection of an antenna to a power amplifier, the antenna being connected to the power amplifier via a coupler. The inventive architecture is improved by the fact that the coupler is provided with an input g... | 10/12/2010 |
| 7791556 | Transmission line distributed oscillator In one embodiment, an integrated circuit antenna array includes: a substrate, a plurality of antennas adjacent the substrate; and an RF network adjacent the substrate, the RF feed network coupling to a distributed plurality of amplifiers integrated with the substrat... | 09/07/2010 |
| 7791557 | Multiple antenna energy harvesting Energy harvesting circuits and associated methods are provided that employ multiple antennas to optimize the amount of energy that is harvested while at the same time making efficient use of tag space. In some embodiments, matching networks are chosen in a manner th... | 09/07/2010 |
| 7786948 | Array antenna with embedded subapertures An array antenna with an embedded subaperture includes an array of radiator elements. The array includes a subaperture of one or a group of the radiator elements. A main receive channel is coupled to at least some of the radiator elements by a feed network. An RF po... | 08/31/2010 |
| 7746289 | Point-to-multipoint antenna structure using multiple passive antennas A fixed-position transmitter node makes wireless links to two or more fixed-position receiver nodes located within a non-omnidirectional composite coverage volume. The antenna structure for the transmitter node includes an RF power splitter, two or more passive ante... | 06/29/2010 |
| 7728784 | Analog phase shifter In one embodiment, an integrated phase shifter includes: a plurality of stages, wherein each stage comprises: a transistor amplifier configured to amplify a voltage signal received at an input node into an amplified voltage signal at an output node according to a ga... | 06/01/2010 |
| 7696946 | Reducing stray capacitance in antenna element switching An antenna array may include an antenna element configured to receive an RF signal. A PIN diode may selectively couple the antenna element to an RF source. Biasing the PIN diode may cancel the received RF signal at a stub coupled to the diode thereby reducing stray ... | 04/13/2010 |
| 7683852 | Ultra-wideband pulse shaping for wireless communications In one embodiment, an impulse radio is provided that includes: a signal source operable to provide a sinusoidal source signal; a pulse shaping circuit having a plurality of selectable delay paths, the pulse shaping circuit being configured to rectify and level shift... | 03/23/2010 |
| 7675474 | Horizontal multiple-input multiple-output wireless antennas High gain, multi-pattern multiple-input multiple-output (MIMO) antenna systems are disclosed. These systems provide for multiple-polarization and omnidirectional coverage using multiple radios, which may be tuned to the same frequency. The MIMO antenna systems may i... | 03/09/2010 |
| 7633456 | Wafer scanning antenna with integrated tunable dielectric phase shifters A wafer antenna comprises a wafer substrate, a plurality of antenna elements integrated on the wafer substrate for radiating and receiving a radio frequency signal, an electrical connection integrated on the wafer substrate; a feed network integrated on the wafer su... | 12/15/2009 |
| 7612732 | Antenna with stripline splitter circuit A flat antenna includes a 2×2 array of circular waveguide antenna elements that receive power from a splitting circuit including first to fourth striplines. The second stripline extends in two directions from one end of the first stripline. The third stripline exte... | 11/03/2009 |
| 7573435 | Convex mount for element reduction in phased arrays with restricted scan Grating lobe free scanning in a phased array with sparse element spacing is obtained by restricting the maximum scan angle for elements in the array, and arranging the elements in a convex form. One convex form is a paraboloid, which may be continuous, or piecewise ... | 08/11/2009 |
| 7567213 | Array structure for the application to wireless switch of WLAN and WMAN The present invention provides an antenna array structure which includes multiple array elements, and the antenna array structure is using for the application of the WLAN (wireless local area network) or WMAN (wireless metro area network.) Furthermore, the array ele... | 07/28/2009 |
| 7561115 | Reconfigurable network component layers A method for configuring an electronics device having reconfigurable network component layers is disclosed. The method selects a first group of pixels from at least one of the reconfigurable network component layers to form a network component on a substrate of the ... | 07/14/2009 |
| 7542006 | Wiring board and semiconductor apparatus An inverse F type antenna is provided and includes first wiring portions provided on an upper face of a board, second wiring portions provided on a lower face of the board, connecting portions electrically connecting the first wiring portions and the second wiring p... | 06/02/2009 |
| 7542005 | Tunable integrated antenna In accordance with an embodiment, an integrated circuit is provided that includes a substrate, a plurality of dipoles adjacent the substrate; an RF feed network adjacent the substrate and coupled to drive a plurality of output nodes with an RF signal; and a pluralit... | 06/02/2009 |
| 7528792 | Reduced inductance interconnect for enhanced microwave and millimeter-wave systems According to one embodiment of the present invention, a microwave or millimeter wave module includes a dielectric layer having a pocket formed substantially through the dielectric layer. The dielectric is attached to a metal substrate. The pocket has substantially v... | 05/05/2009 |
| 7498999 | Circuit board having a peripheral antenna apparatus with selectable antenna elements and selectable phase shifting A circuit board for wireless communications includes communication circuitry for modulating and/or demodulating a radio frequency (RF) signal and an antenna apparatus for transmitting and receiving the RF signal, the antenna apparatus having selectable antenna eleme... | 03/03/2009 |
| 7492325 | Modular electronic architecture A modular electronic architecture according to which electrical components are distributed across substantially identical, interconnected circuit elements or assemblies is provided. Scaling of the electronic device can be achieved by selecting different numbers of c... | 02/17/2009 |
| 7489283 | Phased array antenna apparatus and methods of manufacture Embodiments include phased array antenna apparatus and methods of manufacturing them. In an embodiment, a phased array antenna apparatus includes at least one printed wiring board (PWB) (1002, FIG. 10) having multiple layers, at least one beamformer mo... | 02/10/2009 |
| 7446728 | Method and apparatus for constructing general wireless antenna systems An antenna system of any three dimension (3D) geometry and method for constructing said system with an array of basic antenna elements are described. An antenna system beam pattern is specified. The basic antenna element parameters including basic pattern and actual... | 11/04/2008 |
| 7443354 | Compliant, internally cooled antenna apparatus and method A phased array antenna system including a mandrel having compliant portions and an internally formed cooling passageway. The compliant portions are formed by removing portions of material along one end of the mandrel to form a plurality of pairs of generally U-shape... | 10/28/2008 |
| 7436370 | Device and method for polarization control for a phased array antenna A method of configuring a phased array antenna having a plurality of radiators, each said radiator elements capable of radiating or receiving signals in one of two orthogonal polarizations determined to achieve a pseudo-random mix of horizontally and vertically pola... | 10/14/2008 |
| 7427967 | Phased array antenna and inter-element mutual coupling control method A phased array antenna (400) comprises a first array element (402) and second array element (404) and a dielectric separator (408). Each of the first and second array elements (402,404) is a detection element and or an emitter elem... | 09/23/2008 |
| 7425928 | Method and apparatus for frequency selective beam forming A directive antenna having plural antenna elements is arranged in a parasitic antenna array. Frequency selective components are connected to an active antenna element. Weighting structures are connected to passive antenna elements positioned substantially equidistan... | 09/16/2008 |
