Compact Four-Port Dual-Sense Circularly Polarized Stack-Up Patch Antenna for UHF/MW-RFID MIMO System

Table 1

Structure parameters.

Parameter	Value (mm)
a0	200
a1	1.8
a2	11.7
b1	38.4
b2	37
b3	28.4
c1	0.89
c2	0.71
d1	3
d2	51
W1	14.6
W2	6.7
W3	3.2
W4	4.6
W5	2.1
W6	2
Wc1	16.4
Wc2	17.4
L1	59.3
L2	34.1
L3	52.7
L4	40.1
L5	29.1
L6	100.5
L7	28.3
H1	13.8
H2	9.3