Table 3 Comparison between the suggested filtenna and published studies
From: Compact dual-port MIMO filtenna-based DMS with high isolation for C-band and X-band applications
Refs. | Range of operating frequencies (GHz) | Tuning band (GHz) | Size (mm2) | Tuning mechanism |
|---|---|---|---|---|
[35] | 9.5–13 | 3.5 | \(30 \times 30\) | Mechanically switches |
[36] | 2.37–3.69 | 1.33 | \(45 \times 42.5\) | Single varactor diode |
[37] | 2.2–3.4 | 1.2 | \(80 \times 100\) | Single varactor diode |
[38] | 1.1–2.35 | 1.25 | \(80 \times 129\) | Ten pin diodes |
[39] | 6.16–6.6 | 0.44 | \(30 \times 59.8\) | Single varactor diode |
[40] | 3.9–4.82 | 0.92 | \(20 \times 62\) | Two varactor diodes |
Proposed filtenna | 6.45 to more than 12 | 5.55 | \(45 \times 35\) | Mechanically switches |