Independently Tunable Triband Patch Antenna with Band-Notched Characteristics for X-Band Applications

Table 2

Performance comparison between the proposed antenna with existing works.

References	Dimensions (L × W × h)	Operating frequency (GHz)	Bandwidths	Gain (dBi)	No. of layer	Freq. Tuning
[1]	1.2λ0 × 0.42λ0 × 0.1λ0	3.5–3.75, 4.85–5.2, and 5.5–5.7	8.1, 8.0, and 7.9	6.9, 7.0, and 3.6	3	Dependent
[2]	1.43λ0 × 1.17λ0 × 0.102λ0	1.59–1.68, 1.8–1.84, 1.93–1.98, 2.1–2.11, and 2.23–2.35	5.5, 2.0, 2.7, 1.5, and 5.3	9.2, 8.4, 7.6, 6.9, and 7.3	17	Dependent
[3]	0.34λ0 × 0.65λ0 × 0.015λ0	2.28–2.57, 5.0–6.27, and 7.11–7.96	12.0, 22.5, and 11.3	1.5, 2.6, and 3.1	3	Dependent
[4]	0.46λ0 × 0.72λ0 × 0.14λ0	2.84–3.39 and 4.5–4.83	17.6 and 7.1	5.9 and 6.2	5	Independent
[5]	0.24λ0 × 0.13λ0 × 0.005λ0	0.865–0.88, 1.525–1.605, 1.79–1.868, and 2.085–2.125	1.7, 5.1, 4.2, and 1.9	1.29, 3.94, 1.15, and 0.89	3	Dependent
This work	0.64λ0 × 0.99λ0 × 0.05λ0	9.4–9.7, 10.3–10.6, and 11.05–11.32	3.1, 2.9, and 2.4	6.3, 5.3, and 5.6	3	Independent