Abstract: A narrow-band dipole antenna module comprising: a housing comprising a base having an opening defined therein, and a hollow post extending from the opening and having a plurality of antenna openings defined therein; a circuit assembly configured for insertion into the housing comprising: an input printed circuit board having transmit and receive connectors thereon; a matching printed circuit board having lumped element matching components and a plurality of terminal blocks thereon; a pair of coaxial feed lines connected between the input and matching printed circuit boards, each having a coil formed therein such that the feed lines act as a balun; and at least one rigid support member connected between the input and matching printed circuit boards such that when the circuit assembly is inserted into the housing the terminal blocks are adjacent the antenna openings; and a plurality of antenna elements configured to be connected to the terminal blocks.

Abstract: Technologies for calibrating radars and tracking space objects. Some of such technologies enable a technique for calibrating a radar based on using -A- an elemental antenna (308), which can be embedded on a housing hosting a set of antenna elements, or -B- an antenna (146) mounted to a reflector. Some of such technologies enable a radar site containing a first 1D phased array (112) and a second 1D phased array (112), where the first 1D phased array sends a set of signals and receives a set of reflections based on the set of signals, and the second 1D phased array receives the set of reflections.

Abstract: Technologies for calibrating radars and tracking space objects. Some of such technologies enable a technique for calibrating a radar based on using -A- an elemental antenna (308), which can be embedded on a housing hosting a set of antenna elements, or -B- an antenna (146) mounted to a reflector. Some of such technologies enable a radar site containing a first 1D phased array (112) and a second 1D phased array (112), where the first 1D phased array sends a set of signals and receives a set of reflections based on the set of signals, and the second 1D phased array receives the set of reflections.