Study on the Series Arrangement of One-Dimensional Leaky-Wave Antennas

The radiation characteristics of a series-fed array of 1D Leaky-Wave Antennas (LWA) are reported. A study of the transition between antennas, as well as the proper antenna design is performed, showing how to reach an optimum overall performance to keep the desired radiation pattern with good efficiency. Theoretical examples are shown for the 900 MHz UHF band. Finally, simulated results are obtained for a practical design in planar Half-Width Microstrip technology.