Chebyshev Bandpass Filter Using Resonator of Tunable Active Capacitor and Inductor

Table 1

Tunable BPF performance.

6 Tunable BPF cases	Active inductor					Active capacitor		Theoretical; (MHz)	Practical; (MHz)	(MHz)	(Ω)	BPF
	(nH)	(Ω)		(nH)	(Ω)	(Ω)	(fF)			(% error)	(% error)		Gain (dB)	BW (MHz)
Case ( MHz)	15.78	121.64	0.618	57.05	168.17	−164.72	189.10	766.13	758.58	7.56 (0.99%)	3.45 (2.1%)	107	18.1	7.1
Case ( MHz)	15.79	121.94	0.627	55.98	169.85	−166.67	186.54	778.71	770.31	8.40 (1.1%)	3.17 (1.9%)	39	11.31	19.98
Case ( MHz)	15.80	122.15	0.633	55.28	171.03	−168.30	184.35	788.31	778.48	9.82 (1.2%)	2.74 (1.6%)	22	8.54	34.83
Case ( MHz)	15.81	122.74	0.648	53.48	174.27	−170.42	182.11	806.40	800.45	5.95 (0.74%)	3.85 (2.2%)	12	6.55	65.34
Case ( MHz)	15.85	123.97	0.678	50.28	181.01	−173.11	178.71	839.47	844.63	5.16 (0.61%)	7.90 (4.4%)	14	7.59	59.37
Case ( MHz)	15.86	124.54	0.692	49.02	184.10	−176.32	175.83	857.57	864.30	6.74 (0.79%)	7.78 (4.2%)	41	13.24	21.24