Radio frequency switch
AssigneeKmw Inc.
InventorDuk-Yong Kim
Life of this patent
Estimating the term…
Abstract
An RF switch is provided. In the RF switch, a slot line is divided into a first slot line and a second slot line and an open-end circuit is provided at each end portion of the first and second slot lines. A first transmission line delivers signals from and to the first slot line, and a second transmission line delivers signals from and to the second slot line. A third transmission line delivers signals from and to the portion of the slot line that separates the first slot line from the second slot line. A variable sub open-end circuit portion includes at least one open-end circuit which is selectively switched to the first or second slot line according to an external switching control signal.
Claims14
A radio frequency switch comprising:
- a slot line divided into a first slot line and a second slot line and having an open-end circuit at each end of the first and second slot lines;
- a first transmission line for delivering signals to and from the first slot line;
- a second transmission line for delivering signals to and from the second slot line;
- a third transmission line for delivering signals to and from a separation portion which divides the first slot line from the second slot line;
- and
- a variable sub open-end circuit portion having at least one open-end circuit for selectively connecting to the first or second slot line according to an external switching control signal.
A radio frequency switch for switching between transmission and reception in a time division duplexing/multiplexing system, comprising:
- a slot line divided into a first slot line and a second slot line and having an open-end circuit at each end of the first and second slot lines;
- a first transmission line for delivering a transmission signal received from a transmission end to the first slot line;
- a second transmission line for delivering a reception signal received from the second slot line to a reception end;
- a third transmission line for delivering the transmission signal and the reception signal to and from a separation portion which divides the first slot line from the second slot line;
- and
- a variable sub open-end circuit portion with at least one open-end circuit for selectively connecting to the first or second slot line according to an external switching control signal.
Dependencies are inferred from the claim text.