I have to build a patch antenna at 433 MHz with 8 dB of directivity.
Using PCAAD, I end up with a patch 28 x 30 cm at 5 cm from the ground plane using air. The probe is at 7 cm from the edge and the program calculated 8.5 dB and the BW is 31%. I like the 31% BW because it mean that it will be...