Dual-Band High Q-Factor Complementary Split-Ring Resonators Using Substrate Integrated Waveguide Method and Their Applications

Table 2

Frequency bands and group delay variations of the second proposed resonator for various values of varactor diode capacitance.

Varactor diode capacitance (pF)	Frequency bands (GHz)	Group delay of bands (ns)
0.3 (simulated)	4.668–5.35	16.4–161.5
0.7 [email protected] V (measured)	4.6–5.28	18.4–21.6
0.95 pF@3 V (measured)	4.47–5.34	60–16.6
1.1 (simulated)	4.324–4.931–5.322	7.8–6.3–101
1.5 (simulated)	3.853–4.806–5.314	2.8–31.8–254
2 (simulated)	4.769–5.311	23.5–250
4.4 pF@1 V (measured)	4.72–5.3	20–293
7 pF@0 V (measured)	4.72–5.3	19.5–205