TH8163A - Switches for transmission lines - Google Patents

Abstract

A switch for the transmission line makes the line transmit the signal output. (3) only one cable The switch is connected to one of (1,2) input lines permanently connected at the common (4) input line (1,2). An amplification unit (10) is included in each transmission line. The wires in which the signal amplifier (10) can be biased. In the "on" state, ie with normal high gain or "off" state in a separate state, an appropriate bias in the "off" state ensures that the output of the expansion unit is set. The signal shows the low impedance to the amplifier's input line, the length (L) of the input line, which is selected to This achieves high impedance at the common point (4) compared to other input transmission lines. The correct design makes it possible to maintain the The reverse and the boost loss of the circuit are low in the "open" state, while providing the high increment loss to the circuit in the "closed" state.

Claims (1)

1.Switch arrangement for input transmission lines (1,2), number of connections to common output line (3) at common point (4) switch arrangement for transmission line, consists of amplification unit (10) in Each incoming signal line The amplifier (10) has a feature that it operates in an "on" state to pass more than one amplified signal, and in the "off" state it has the output impedance of the amplifier (10), which is considered. Together with the length (L) of the transmission line The input between the amplifier (10) and the common (4) causes the amplifier (10) in the "off" state.