Table 5 RFID system characteristics
RFID reader code | Emitter antenna dimensions (cm) | Carrier frequency (MHz) | Pulse repetition rate (Hz) | Duty factor | Pulse width (ms) | Max field intensity (A/m RMS) @ 2.5 cm | Max field intensity (V/m RMS) | Governing ISO standard | Occurrences of EMI |
|---|---|---|---|---|---|---|---|---|---|
1 | Rectangular Loop 3.5 × 4.5 × 0.5 | 0.125 | CW | -- | -- | 0 | |||
2 | Rectangular Loop 114 × 66 × 6.3 | 0.125 | NA | 13 | -- | -- | 0 | ||
3 | Rectangular Loop 85 × 50 × 5 | 0.134 | 14.3 | 0.72 | 49.9 | 93 | -- | 11785 | 2 |
4 | Rectangular Loop 85 × 50 × 5 | 0.134 | CW | 47 | -- | -- | 0 | ||
5 | Rectangular Loop 20 × 20 × 2.5 | 0.134 | 10.6 | 0.54 | 50.3 | 119 | -- | 11785 | 4 |
6 | Rectangular Loop 31 × 31 × 2.8 | 13.56 | 10.9 | 0.11 | 10.3 | 1 | 16 | 18000-3 mode 1 | 0 |
7 | Rectangular Loop 20 × 20 × 0.8 | 13.56 | 4.0 | 0.13 | 31.9 | 1 | 60 | 18000-3 mode 1 | 2 |
8 | Rectangular Loop 31 × 31 × 2.8 | 13.56 | 11.1 | 1.0 | 90.0 | 6 | 67 | 18000-3 mode 1 | 3 |
9 | Patch 2.3 × 2.5 × 0.1 | 13.56 | 2.6 | 0.95 | 362.6 | 2 | 18000-3 | 1 | |
10 | Patch 21 × 32 × 1.2 | 13.56 | 1.0 | 0.04 | 50.5 | 3 | 378 | 18000-3 mode 2 | 3 |
11 | Handheld 19 × 11 × 7.8 | 13.56 | 3.5 | 0.92 | 264.0 | 4 | 71 | 18000-3 mode 1 | 2 |
12 | Stick length 19.8 × diameter 1.4 | 433 | NA | -- | 0* | -- | 0 | ||
13 | Patch 38 × 36.5 × 1.5 | 433 | NA | -- | 0* | -- | 0 | ||
14 | Patch 15.7 × 5.5 × 3 | 433 | NA | -- | 0* | 18000-7 | 0 | ||
15 | Patch 31 × 31 × 4.8 | 915 | 56.1 k | 0.76 | 0.01 | -- | 59 | 18000-6B | 7 |
16 | Patch 48.5 × 16 × 5 | 915 | NA | -- | 33 | 18000-6B | 4 | ||
17 | Patch 21 × 21 × 3.5 | 915 | NA | -- | 89 | 18000-6 | 8 | ||
18 | Patch 22.5 × 21 × 5 | 915 | NA | -- | 73 | 18000-6C | 4 | ||
19 | Stick length 10.5 diameter 0.9 | 2450 | NA | -- | 1 | -- | 0 | ||
20 | Stick length 11 diameter 0.8 | 2450 | 897 | 0.16 | 0.18 | -- | 2 | -- | 0 |