Small-Size Seven-Band WWAN/LTE Antenna with Distributed LC Resonant Circuit for Smartphone Application

Figure 3

Simulated return loss as a function of (a) the coupling gap width between the feeding strip and the shorting strip branch 1, (b) the length of the end of the shorting strip branch 2, and (c) the length of the feeding strip.

(a)

(b)

(c)