Abstract This paper presents the design technique for a series-fed traveling-wave microstrip patch antenna array. The unique feature of this design is the employment of a notched feed patch as a radiating termination patch in combination with varying widths of radiating elements. This technique produces a low sidelobe performance. To achieve this effect, the antenna array is horizontally polarized, with measured results of -30 dB sidelobe, 4.5 degree 3-dB beamwidth, and 12 dBi gain at 39...

Abstract Current issues have arisen in areas of cost savings and complexity of systems developed for the US Army. One of these systems is an identification system for ground vehicles. The issue for this system is whether the system should utilize circular polarized or linear polarized antennas. The identification system will be operating in the millimeter wave spectrum. The system is a question and answer system, therefore, the signal transmitted only needs to reach the receiver, where a reply is...