|
| Ref. | Size
(mm2) | Band Notch Technique | No. of Notched Bands | Notched Frequencies (GHz) | Major Focus/Drawback |
|
| [12] | 50 ×42 | Mushroom type EBG | 01 | WiMAX ((3.3–3.8) | UWB/bulky & single notched band |
|
| [13] | 35 × 30 | E-shaped slots | 01 | WLAN (5.15–5.35) | UWB/single notch |
|
| [14] | 50 × 50 | H-shaped slot | 01 | WLAN (5.15–5.8) | UWB/bulky & single notched band |
|
| [15] | 50 ×50 | Parasitic strip | 01 | WLAN (5.15–5.8) | -do- |
|
| [16] | 48 × 48 | Split Ring Resonator | 01 | WLAN (5.1-6) | -do- |
|
| [17] | 39.8 × 50 | PIN diodes | 01 | WLAN (5.2-5.8) | -do- |
|
| [18] | 38.1 × 24.6 | Slots & CSRR | 02 | WiMAX (3.3–3.7)/
WLAN (5.15–5.82) | UWB/two notched frequency bands |
|
| [19] | 30 × 20 | Truncated patch and slots in the ground | 02 | WiMAX (3.40-3.92)/
WLAN (5.15-5.72) | -do- |
|
| [20] | 30 × 31 | miniaturized resonator and Varactor diodes | 02 | WiMAX (3-4)/
WLAN (5.15-5.825) | -do- |
|
| [21] | 33 ×32 | meandered slot in the radiator and U-slot in the feed line | 02 | WiMAX (3.5)/
WLAN (5.6) | -do- |
|
| [25] | 32 × 24 | Inverted-U and Iron Shaped resonators | 02 | WLAN (5-5.4)/
ITU (7.8-8.4) | -do- |
|
| [26] | 33 × 30 | Ring resonators, printed on multi-layer substrate | 03 | WiMAX (3.3–3.7)/
Lower WLAN (5.15–5.35)/
Upper WLAN (5.72–5.82) | UWB/ design complexity |
|
| [27] | 28.5 × 28 | horizontal & vertical stubs and open-ended slots | 03 | WiMAX (3.3–3.6)/
lower WLAN (5.15–5.35)/
upper WLAN (5.725–5.825) | UWB/ ITU band is not notched |
|
| [28] | 38.3×3 34.5 | Rectangular & Circular SRR | 03 | WiMAX (3.28–3.82)/
WLAN (5.12–5.825)/
DSRC (5.85–5.925) | UWB/ design complexity & ITU band is not notched |
|
| [29] | 41 × 26.75 | Rectangular & C-shape slots | 03 | WiMAX (3.3– 3.7)/
C-band (3.7–4.2)/
WLAN (5.15–5.85) | UWB/ ITU band is not notched |
|
| [30] | 64 × 45 | EBG structures | 03 | WiMAX (3.3-3.6)/
WLAN (5-6)/
X-Band (7.1-7.9) | UWB/bulky |
|
| [32] | 48.8 × 35.6 | Rectangular slots | 01 | WLAN (5.15–5.85) | UWB/bulky |
|
| Proposed | 32 × 30 | Three slots in radiating patch | 03 | WiMAX (3.01-3.68)/
WLAN (5.18-5.73)/
ITU- band (7.7-8.5) | UWB |
|
