Abstract <p>A model of a dual-band microstrip antenna array based on a dipole radiator with end excitation is proposed and analyzed in terms of electrodynamic antenna theory. Potential applications include Internet technology, wireless communications systems, and phased antenna arrays for circular and sectoral radar stations. The proposed device may be used to ensure stable coverage in data transmission for the Internet of Things. The modified dipole radiator on which the antenna is based permits dual-band operation of the antenna array. Hence, a stable coverage zone may be established in the transmission and reception of Internet data in two nonintersecting frequency ranges. Basic design principles for a dual-band radiator and the array as a whole are proposed, and the design procedure is described in detail. The basic radiator of the array is a printed dipole with end excitation, which acts as a dual-band balancing device. The proposed antenna array is capable of creating a dual-band radiation pattern that may expediently be used in inexpensive systems for beam formation. In addition, a completely planar design permits maximum miniaturization of the system and decrease in its mass and size.</p>