| Patent application number | Description | Published |
|---|
| 20080218263 | Wideband differential amplifier including single-ended amplifiers coupled to a four-port transformer - A differential amplifier is formed from a first single-ended amplifier circuit, a second single-ended amplifier circuit, and a four-port transformer circuit coupled to the first and second single-ended amplifier circuits to form the differential amplifier. | 09-11-2008 |
| 20080272959 | Duplexer for Simultaneous Transmit and Receive Radar Systems - An enhanced duplexer ( | 11-06-2008 |
| 20090261901 | DECADE BANDWIDTH PLANAR MMIC FOUR PORT TRANSFORMER - A wide bandwidth planar four port MMIC transformer is provided by input diplexers which divide up the incoming signal into a high band and a low band, with the resulting signals coupled to high band and low band four port transformers implemented in one embodiment using spiral inductors and coupled lines, the outputs of which are combined using two output diplexers to provide a decade bandwidth transformer. | 10-22-2009 |
| 20090284431 | INTEGRATED ELECTRONICS MATCHING CIRCUIT AT AN ANTENNA FEED POINT FOR ESTABLISHING WIDE BANDWIDTH, LOW VSWR OPERATION, AND METHOD OF DESIGN - An integrated electronics matching circuit is placed directly at the feed points of an antenna to match a transmission line to the impedance of the antenna that results in preserving the originally-designed wide bandwidth of the antenna, which in one embodiment is 10:1. A methodology is provided for the design of the integrated electronics matching circuit that marries the output of an antenna modeling tool with an integrated circuit design tool, in which the S parameter outputs of the antenna modeling tool for the antenna ports are coupled to the corresponding ports of the integrated circuit designed by the integrated circuit design tool. | 11-19-2009 |
| 20100007416 | WIDEBAND DIFFERENTIAL AMPLIFIER INCLUDING SINGLE-ENDED AMPLIFIERS COUPLED TO A FOUR-PORT TRANSFORMER - A differential amplifier is formed from a first single-ended amplifier circuit, a second single-ended amplifier circuit, and a four-port transformer circuit coupled to the first and second single-ended amplifier circuits to form the differential amplifier. | 01-14-2010 |
| 20110001679 | METHOD FOR DIRECT CONNECTION OF MMIC AMPLIFIERS TO BALANCED ANTENNA APERTURE - A MMIC amplifier is directly connected to the balanced feed points at the aperture of an antenna to eliminate the distance between electronics coupled to the antenna and the antenna itself, such that interfaces, components and connection lines which introduce losses and parasitic effects that degrade system performance are eliminated due the direct connection. Expanding the aperture of the antenna to accommodate the direct connection of a MMIC amplifier to balanced feed points of an antenna has been found to have no deleterious effects on antenna performance. Moreover, when coupling the MMIC amplifier to an unbalanced coaxial line, any associated ripple is minimized due to the direct connection. | 01-06-2011 |
