Mixed-Potential Integral Equation Based Characteristic Mode Analysis of Microstrip Antennas

Figure 5

Characteristic currents and fields for (a) 1st mode, (b) 2nd mode, (c) 3rd mode, and (d) 4th mode. In figures (a)–(d), the left figure shows the characteristic currents on the top patch, while the right figure shows the characteristic currents on the bottom patch.

(a)

(b)

(c)

(d)