H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/18 (2006.01) H04B 10/135 (2006.01) H04B 10/24 (2006.01)
Patent
CA 2075881
Transmission system for the polarisation-insensitive transmission of signals over a signal route (ST) between a first system connection point (S1) for a transmitter (T) and a second system connection point (S3) for a receiver (R), and between two further system connection points (S2 and S4) for an additional transmitter and a receiver. On one side the high-order retarder (HR) is disposed between the system connection points and the signal route (ST). The system comprises a first and a second hybrid circuit (H1, H2) each provided with two unidirectional connection points and a bidirectional connection point. The unidirectional connection points form the system connection points (S1 to S4 inclusive). The bidirectional connection point of one of the hybrid circuit (H1) is connected via the high-order retarder (HR), and the bidirectional connection point of the other hybrid circuit (H2) is connected directly, to the signal route (ST). (Figure 7) fig- 7 Image
Fetherstonhaugh & Co.
Koninklijke Kpn N.v.
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