Research Article
Compact Four-Port Dual-Sense Circularly Polarized Stack-Up Patch Antenna for UHF/MW-RFID MIMO System
Figure 12
Simulated and measured axial ratio as a function of θ angle from the broadside, in the XZ and YZ planes at 0.915 GHz: (a) Port 1 and (b) Port 2.
| (a) |
| (b) |