High definition television (HDTV) is an emerging technology that is capable of providing service either in an analog or digital format. Television signals are conventionally transmitted in analog form according to various standards adopted by particular countries. For example, the United States has adopted the standards of the National Television System Committee (NTSC). Most European countries have adopted either PAL (Phase Alternating Line) or SECAM (sequential color and memory) standards. In contrast, high definition television systems or HDTV use digitally encoded signals having extremely high clock signal frequencies which are not directly compatible with the conventional video recording processes. Digital transmission of television signals can deliver video and audio services of much higher quality than analog techniques. Digital transmission schemes are particularly advantageous for signals that are broadcast by satellite to cable television affiliates and/or directly to home satellite television receivers. HDTV (high definition television) is rapidly becoming a reality and promises theater-like large screen video presentations in a home environment. With the introduction of HDTV, there is a need to provide wide bandwidth HDTV antennas that increase signal directivity while rejecting reflections of that signal that bounce off of surrounding structures which cause ghosting due to phase delays.
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