Ant-1 Dual-feed Patch antenna for GPS L1 band (1.575 GHz)

MEASURED REFLECTION COEFFICIENT

Port 1: Left-Hand Circular polarization (LHCP)

Port 2: Right-Hand Circular polarization (RHCP)

For both graphs:

Marker 1 indicates the minimum for the curve recorded with Port 1 excited

Marker 2 indicates the minimum for the curve recorded with Port 2 excited

Figure 1

The curves in Figure 1 are recorded with the non-excited port left OPEN.

Figure 2

The curves in Figure 2 below are recorded with the non-excited port terminated on 50-Ω impedance.