Table 1.

Specifications of RF-components used for construction of C²ONTAR elements

Component	Description	Value
C 1, C 4, C 5, C 6	Film dielectric trimmer	4–40 pF
C 2, C 8	Multilayer ceramic chip	100 nF
C 3, C 7	Multilayer ceramic chip	100 pF
C 9	Dielectric capacitor	30 mF
L 1	6 turns enameled 1.5 mm copper wire; length 12.5 mm, i.d. 5 mm	98 nH
L 2	4 turns enameled 0.5 mm copper wire; length 3.5 mm, i.d. 2 mm	13.5 nH
D 1, D 2	PIN diode
R 1	Metal film resistor	1 kΩ
R 2	Metal film resistor	1 MΩ

The principal scheme and photograph of C²ONTAR elements are shown in Fig. 1