Abstract
Reflector antennas are perhaps the most recognized type of antennas with vast applications in satellite communications, radars, wireless communications, remote sensing, planetary missions, radio astronomy and others. Typical frequency ranges of operations have been as low as the P-band, microwave, millimeter wave, and as high as THz and optical. Reflector antenna designs have evolved from simple single reflector topology with a solid surface to sophisticated mesh reflector antennas with multiple non-conical surfaces. The basic role of a reflector antenna is to confine most of the electromagnetic energy captured over their apertures into a focal plane or redirect the radiated field of the feed into the far field. This invited paper focuses on a concise history of reflector antenna evolution over an extended historical time span and links it to the modern and challenging recent developments and applications. The author has particularly confined the material to the areas that have influenced his research activities.
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