Abstract: A lens-based millimeter wave transceiver for use in wireless communication systems operating in the E-band spectrum consistent with the FCC rules regulating the 71-76 GHz and 81-86 GHz bands. The transceiver includes a single lens adapted for transmission of millimeter radiation to form communication beams in one band of either a band of about 71-76 GHz or a band of 81-86 GHz and for collection and focusing of millimeter wave radiation from communication beams in the other of the two bands. It includes a feed horn adapted to broadcast millimeter radiation through said single lens and to collect incoming millimeter wave radiation collected and focused by said single lens. A millimeter wave diplexer separates incoming and outgoing millimeter wave radiation.

Abstract: A short range millimeter wave imaging radar system. The system includes electronics adapted to produce millimeter wave radiation scanned over a frequency range of a few gigahertz. The scanned millimeter wave radiation is broadcast through a frequency scanned transmit antenna to produce a narrow transmit beam in a first scanned direction (such as the vertical direction) corresponding to the scanned millimeter wave frequencies. The transmit antenna is scanned to transmit beam in a second direction perpendicular to the first scanned direction (such as the horizontal or the azimuthal direction) so as to define a two-dimensional field of view. Reflected millimeter wave radiation is collected in a receive frequency scanned antenna co-located (or approximately co-located) with the transmit antenna and adapted to produce a narrow receive beam approximately co-directed in the same directions as the transmitted beam in approximately the same field of view.

Abstract: An imaging system for a rotary aircraft having a millimeter wave imager with visible or infrared overlay. The system includes an active millimeter wave imaging system comprising a millimeter wave transmitter and a millimeter wave phased array receiver for producing millimeter wave images of a landing region, a second imaging system operating at visible or infrared wavelengths to produce visible or infrared images of the landing region, and a processor programmed with a see and remember algorithm for overlaying the visible or infrared images and the millimeter wave images and to save at least one good high-resolution visible or infrared image in case of a brownout event begins to obscuring the visible or infrared images wherein in case of the brownout event the millimeter wave images are overlaid on the at least one good visible or infrared image and not obscured visible or infrared images.

Abstract: A short range millimeter wave imaging radar system. The system includes electronics adapted to produce millimeter wave radiation scanned over a frequency range of a few gigahertz. The scanned millimeter wave radiation is broadcast through a frequency scanned transmit antenna to produce a narrow transmit beam in a first scanned direction (such as the vertical direction) corresponding to the scanned millimeter wave frequencies. The transmit antenna is scanned to transmit beam in a second direction perpendicular to the first scanned direction (such as the horizontal or the azimuthal direction) so as to define a two-dimensional field of view. Reflected millimeter wave radiation is collected in a receive frequency scanned antenna co-located (or approximately co-located) with the transmit antenna and adapted to produce a narrow receive beam approximately co-directed in the same directions as the transmitted beam in approximately the same field of view.

Abstract: An imaging system for a rotary aircraft having a millimeter wave imager with visible or infrared overlay. The system includes an active millimeter wave imaging system comprising a millimeter wave transmitter and a millimeter wave phased array receiver for producing millimeter wave images of a landing region, a second imaging system operating at visible or infrared wavelengths to produce visible or infrared images of the landing region, and a processor programmed with a see and remember algorithm for overlaying the visible or infrared images and the millimeter wave images and to save at least one good high-resolution visible or infrared image in case of a brownout event begins to obscuring the visible or infrared images wherein in case of the brownout event the millimeter wave images are overlaid on the at least one good visible or infrared image and not obscured visible or infrared images.

Abstract: A lens-based millimeter wave transceiver for use in wireless communication systems operating in the E-band spectrum consistent with the FCC rules regulating the 71-76 GHz and 81-86 GHz bands. The transceiver includes a single lens adapted for transmission of millimeter radiation to form communication beams in one band of either a band of about 71-76 GHz or a band of 81-86 GHz and for collection and focusing of millimeter wave radiation from communication beams in the other of the two bands. It includes a feed horn adapted to broadcast millimeter radiation through said single lens and to collect incoming millimeter wave radiation collected and focused by said single lens. A millimeter wave diplexer separates incoming and outgoing millimeter wave radiation.