Improved Handset Antenna Performance via an Electrically Extended Ground Plane

Figure 4

HAC-scanned result of AUT: (a) 𝐸 field at 900 MHz, (b) 𝐻 field at 900 MHz, (c) 𝐸 field at 1880 MHz, and (d) 𝐻 field at 1880 MHz.

(a)

(b)

(c)

(d)