A rectangular patch antenna is fed by a microstrip line of width w₀=0.7 cm. Both, the antenna and the feed are built on a substrate with dielectric constant of . The frequency of operation is 2GHz, and the substrate height is h=0.6 cm.

2 Slots

1. Using the graph design the rectangular patch (determine W and L) so that the antenna has directivity of 7.0 dB.

2. Calculate the resonant input impedance of the patch assuming no mutual coupling between the two radiating slots.

help

Assume that  condition for the approximation formula is satisfied

3. Calculate the characteristic impedance of the feeding microstrip line

                                                  Score = 0/3