A Varactor-Tunable Rasorber Using Tripole and Ring Slot Elements

Table 3

Comparisons between this work and some published results.

Ref	Simulation		Measurement				Thickness (λL)	Pol.
	Cap. (pF)	Tunable (GHz)	Voltage (V)	Tunable (GHz)	IL (dB)	BWS11 (GHz)
[12]	0.12–0.52	2.7–3.4	0–22	1.6–3.3	3.4–9.3	1.9–5.4	0.092	Dual
[13]	0.12–0.38	3.8–5.2	4–16	3.8–5.2	0.59–2.5	2.4–6.58	0.107	Single
[14]	0.15–0.5	3.33∼5.13	4–18	2.8–4.2	1.7–6.5	2.67–7.89	0.134	Dual
This work	0–0.68	3.0–4.78	5–20	2.6–3.77	1.5–5	2.2–7.86	0.099	Dual