A Quad-Element UWB-MIMO Antenna with Band-Notch and Reduced Mutual Coupling Based on EBG Structures

Figure 11

TRAC curves for the proposed MIMO antenna with different phase combinations between the four elements: (a) elements 1 and 4 are in phase; (b) elements 1 and 2 are in phase; (c) elements 1 and 3 are in phase; (4) all elements are out of phase.

(a)

(b)

(c)

(d)