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AssigneeTexas Instruments Incorporated
InventorsThomas Keller, Manfred Plankensteiner
Estimating the term…
In a circuit assembly for producing a one-way connection between a first transmitter or receiver (12) operating on a first frequency and an antenna (16), on the one hand, as well as between a second transmitter or receiver (14) operating on a second frequency and the antenna (16) on the other, each transmitter or receiver having a port for producing a connection to the antenna (16) a filter (18) is used having at least one symmetrical port, the passband of which covers the first and the second frequency, whereby the antenna (16) is connected to one of the ports of the filter (18). A first passive network (24) between one lead of the at least one symmetrical port of the filter (18) and the input of the first transmitter or receiver (12) short-circuits at the second frequency the port (20) of the first transmitter or receiver (12). A second passive network (26) between the other lead of the at least one symmetrical port of the filter (18) and the port (22) of the second transmitter or receiver (14) short-circuits the port (22) of the second transmitter or receiver (14) at the first frequency.
A circuit assembly for producing a one-way connection between a first transmitter or receiver operating on a first frequency and an antenna, on the one hand, as well as between a second transmitter or receiver operating on a second frequency and the antenna on the other, each transmitter or receiver having a port for producing a connection to the antenna, comprising a filter (18) having at least one symmetrical port, the passband of which covers said first and the second frequency, whereby said antenna (16) is connected to one of said ports of said filter (18), a diplexer including a first passive network (24) between one lead of said at least one symmetrical port of said filter (18) and said port (20) of said first transmitter or receiver (12) which short-circuits at said second frequency the input (20) of said first transmitter or receiver (12), and having a second passive network (26) between said other lead of said at least one symmetrical port of said filter (18) and said port of said second transmitter or receiver (14) which short-circuits the input (22) of said second transmitter or receiver (14) at said first frequency.
Dependencies are inferred from the claim text.