Radio-frequency switching device, in particular for mobile cellular telephones
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United States of America Patent
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N/A
Issued Date -
Feb 5, 2004
app pub date -
Jun 25, 2003
filing date -
Jun 26, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A radio-frequency switching device includes first and second radio-frequency channels connected to an input/output terminal. A controllable switching device selects one of the radio-frequency channels in response to a switching control signal. The switching device includes a respective control module connected to each radio-frequency channel. Each control module includes a PIN diode whose cathode is connected to the input/output terminal, and a control transistor whose base is connected to a control input for receiving the switching control signal. A conducting terminal of the control transistor is connected to the anode of the PIN diode.
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