1
Kevin W Lindell: Method and apparatus for responding to an interrogation signal. Westinghouse Norden Systems, Christopher O Edwards, September 26, 1995: US05453748 (23 worldwide citation)

A transponder receives a stable reference frequency transmitted from an interrogator and compares the stable reference frequency to a local oscillator frequency that has short term stability. A comparison signal is provided to a synchronous oscillator for providing a locked signal that briefly locks ...


2
Kevin W Lindell: Oscillator coupled to an antenna and an application. Kevin W Lindell, September 12, 2006: US07106246 (23 worldwide citation)

A radio frequency device has an antenna for capturing an incoming signal for processing by the device or for radiating an outgoing signal from the device and a signal processor having one or more synchronous oscillators responsive to an input signal for providing an amplified output signal without u ...


3
Lester Kosowsky, Edward Stockburger, Kevin W Lindell: IFF system including a low radar cross-section synthetic aperture radar (SAR). Northrop Grumman Corporation, Walter G Sutcliff, June 16, 1998: US05767802 (18 worldwide citation)

An IFF system including an interferometric ultra-high resolution synthetic aperture (SAR) radar located on an aircraft and a respective transponder located on one or more ground targets which may be, for example, ground vehicles. Each transponder is responsive to RF pulses transmitted from the radar ...


4
Kevin W Lindell: Communications retro-reflector. United Technologies Corporation, June 13, 1995: US05424737 (12 worldwide citation)

A lens such as a Luneberg lens is used in a retro-reflector having a plurality of reflector elements formed in a mosaic covering a predetermined portion of the lens. Each of the reflector elements may be individually controlled independently of the others; in this way, an interrogation source whose ...