A microstrip line, which is open at one end and extends to infinity toward the other end, has a center conductor width = 0.42λ₀, substrate height of 0.05λ₀, and it is operating at 10 GHz. The dielectric constant of the substrate is 2.25. This type of microstrip line is used to construct rectangular patch antennas. Determine the following:
Determine the directivity (in dB) of the rectangular microstrip patch of Example 14.3 using
Kraus' approximate formula
