A dual-frequency assembly of two short backfire (SBF) antennas, one large for low frequencies (LF) and one small for high frequencies (HF), is described in this article. The two antennas are located on the same axis and, since they have a common reflec...
The short backfire (SBF) is a highly effective aperture antenna of simple and compact construction. Basically, it consists of three elements: two parallel reflectors, large and small, spaced a half-wavelength apart, which form a leaky resonant cavity, and a cavity feed (half-wave dipole, 1–3 waveguide or horn, 4,5 or...
Read More