The slot antenna
In this chapter, we will consider the single-slot antenna. We will first discuss an arbitrarily shaped aperture in an infinite conducting ground plane. Then we specialise to a rectangular resonant slot antenna and derive its radiation conductance. We continue with the special but important case of a longitudinal slot in the broad wall of a rectangular waveguide. The normalised modal functions for describing fields in waveguides are introduced. The equivalent slot conductance as seen from the feeding waveguide is then calculated. Mutual coupling to other slots and ground plane edge effects is also discussed.
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The slot antenna, Page 1 of 2
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