One example includes a digital communications converter. The converter includes at least one analog signal port configured to couple to at least one radiating element associated with an antenna structure coupled to an exterior surface of a vehicle. The at least one analog signal port can be configured to at least one of transmit and receive analog radio frequency (RF) signals respectively to and from the at least one radiating element. The converter also includes a digital interface configured to at least one of receive the analog RF signals or transmit the analog RF signals via the respective at least one analog signal port. The converter is also configured to convert between the analog RF signals and digital communication signals on a digital transmission medium that are at least one of transmitted to the digital communications converter via a digital communications cable and transmitted from the digital communications converter via the digital communications cable.

One example includes a digital communications converter. The converter includes at least one analog signal port configured to couple to at least one radiating element associated with an antenna structure coupled to an exterior surface of a vehicle. The at least one analog signal port can be configured to at least one of transmit and receive analog radio frequency (RF) signals respectively to and from the at least one radiating element. The converter also includes a digital interface configured to at least one of receive the analog RF signals or transmit the analog RF signals via the respective at least one analog signal port. The converter is also configured to convert between the analog RF signals and digital communication signals on a digital transmission medium that are at least one of transmitted to the digital communications converter via a digital communications cable and transmitted from the digital communications converter via the digital communications cable.

A work vehicle includes a vehicle body to which work instrument is connected at a back, and a ROPS frame erected at a back portion of a driver seat area in the vehicle body. The work vehicle further includes a positioning unit configured to detect a position of the vehicle body based on a signal sent from a positioning satellite, and a support unit that is fixed to an upper portion of the ROPS frame and supports the positioning unit from below. The positioning unit has a harness connection portion that is connected to a harness for sending information to outside. The harness connection portion is located at a back portion of the positioning unit. The support unit is located protruding backwardly from the harness connection portion of the positioning unit.

An antenna mounting device is provided for a motor vehicle. That antenna mounting device includes a body having a first mounting end with a first cross section and a second mounting end with a second, different cross section. In addition, the antenna mounting device includes an antenna anchor point carried on the body and adapted to receive and hold an antenna. The two mounting sections allow versatility in mounting the antenna mounting device in different structures carried on the motor vehicle including, for example, a stake pocket and a trailer hitch receiver.

A radar apparatus includes a first antenna and a second antenna. The first antenna includes a plurality of first antenna elements that are arrayed in a first direction on a surface oriented to a forward direction, as antenna elements configuring the first antenna. The second antenna includes a plurality of second antenna elements that are arrayed in a second direction perpendicular to the first direction on the surface oriented to a forward direction, as antenna elements configuring the second antenna. The radar apparatus emits radar waves in a forward direction using either of the first and second antennas, and receives reflected waves of the radar waves using the other of the first and second antennas.

A vehicle antenna system including a mobile phone antenna provided in a front header of a vehicle, a dedicated short range communication antenna provided in a windshield of the vehicle, and a global positioning system antenna provided in the inside of a front instrument panel of the vehicle. For example, the front header includes a front surface to which the windshield of the vehicle is attached, and a rear surface opposite to the front surface, and the mobile phone antenna is arranged on the rear surface side.

A system and method for processing radar returns to identify returns from man-made objects. In one embodiment, a plurality of radar returns is used to form a corresponding plurality of resonance maps, which are combined using an ordered statistic to form a processed resonance map. A discriminant is calculated as (a) the fourth power of the ratio of (i) the power in a first rectangle about each pixel to (ii) the power in a region outside the first rectangle and inside a second, larger rectangle, or (b) zero if the ratio is less than 1. Other processing operations including thresholding operations to suppress noise and clutter are used to improve the signal to noise ratio for detecting man-made objects.

A communication antenna comprises an electrically conductive base assembly at a lower section of the antenna; a loading coil assembly, at a midsection of the antenna, and electrically connected to the base assembly; and a re-entrant capacitive hat assembly, at an upper section of the antenna, and electrically connected to the loading coil assembly, wherein the re-entrant capacitive hat assembly includes: a hat housing and a support tube longitudinally extending through the hat housing a domed shaped endcap and an insulative bushing.

A patch antenna includes: a radiating element having a flat-plate shape; and a parasitic element provided at a position spaced away from the radiating element in planar view in which the radiating element is seen from a direction perpendicular to a plate surface of the radiating element. A longitudinal direction of the parasitic element is oriented along a direction of a line segment connecting a center of the radiating element and a feeding point in the planar view.