Design of Short Backfire Antennas [Antenna Designer's Notebook]

The design proposed in this article is dedicated to short backfire antennas fed by a dipole or a crossed dipole. The studies were carried out with different types of short backfire antennas. The directivity of the antennas designed ranged between 12 and 20.5 dB, The presented design procedure may be very useful for the creation of high-efficiency and compact microwave antennas with various applications.