Abstract: Wideband millimeter-wave microstrip antenna having impedance stabilizing elements, and antenna array including same. The antenna includes a main patch and two impedance stabilizing elements each located at a distance from the main patch. One of the two impedance stabilizing elements is disposed at a first side of the main patch and the other of the two impedance stabilizing elements is disposed at a second side of the main patch opposing the first side. A maximum width of each of the two impedance stabilizing elements is less than half of a maximum width of the main patch. The main patch includes at least one feed line and a row of via that extends along one side of the main patch.

Abstract: An object detection system for use in residential or commercial buildings includes a housing for retaining a camera, a radar antenna, and an actuator. The camera has a first field of view, and the radar antenna has a second field of view. The actuator is configured to selectively move the camera. The system further includes computer memory and a processor in data communication with the camera, the radar antenna, the actuator, and the computer memory. The processor, using programming contained in the computer memory, causes the camera to move based on camera position data and data from the radar antenna.

Abstract: Wideband millimeter-wave microstrip antenna having impedance stabilizing elements, and antenna array including same. An antenna array comprises at least one antenna assembly. The at least one antenna assembly has a plurality of antennas coupled in series and includes a solitary millimeter-wave wideband patch antenna as a terminal antenna in the series. The millimeter-wave wideband patch antenna comprises a main patch and two rectangular impedance stabilizing elements. The two rectangular impedance stabilizing elements are symmetrically disposed at a coupling distance from the main patch and extend parallel to the main patch. One of the two rectangular impedance stabilizing elements is disposed on one side of the main patch and the other of the two rectangular impedance stabilizing elements is disposed on an opposing side of the main patch. A width of each of the two rectangular impedance stabilizing elements is less than half of a width of the main patch.