Two-port phase shifters providing a predetermined phase shift, e.g. "all-pass" filters [3]
11
/
20
•
•
•
Two-port phase shifters providing an adjustable phase shift [3]
11
/
22
•
•
•
providing two or more phase shifted output signals, e.g. n-phase output [3]
11
/
24
•
•
Frequency-independent attenuators [3]
11
/
26
•
•
Time-delay networks (analogue shift registers G 11 C 27/04) [3]
11
/
28
•
•
Impedance matching networks [3]
11
/
30
•
•
•
Automatic matching of source impedance to load impedance [3]
11
/
32
•
•
Balance-unbalance networks [3]
11
/
34
•
•
Networks for connecting several sources or loads working on different frequencies or frequency bands, to a common load or source (for use in multiplex transmission systems H 04 J 1/00) [3]
11
/
36
•
•
Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source (phase shifters providing two or more output signals H 03 H 11/22) [3]
11
/
38
•
•
One-way transmission networks, i.e. unilines [3]
11
/
40
•
•
Impedance converters [3]
11
/
42
•
•
•
Gyrators (used in frequency selective networks H 03 H 11/08
) [3]
11
/
44
•
•
•
Negative impedance converters (H 03 H 11/42 takes precedence; used in frequency-selective networks H 03 H 11/10) [3]
11
/
46
•
One-port networks [3]
11
/
48
•
•
simulating reactances [3]
11
/
50
•
•
•
using gyrators [3]
11
/
52
•
•
simulating negative resistances [3]
11
/
54
•
Modifications of networks to reduce influence of variations of temperature [3]
