Radio frequency switch including filter circuit
First Claim
1. A radio frequency switch, comprising:
- a common port transmitting and receiving a radio frequency signal;
a first switching unit having a plurality of first switch elements connected in series and opening or closing a signal transfer path between a first port inputting and outputting the radio frequency signal and the common port; and
a second switching unit including a plurality of second switch elements connected in series and opening or closing a signal transfer path between a second port inputting and outputting the radio frequency signal and the common port,wherein the second switching unit further includes a first filter circuit unit connected to a control terminal of at least one second switch element of the plurality of second switch elements to remove at least one preset frequency band signal, and the first filter circuit unit is not directly connected to the signal transfer path of the second switching unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A radio frequency switch may include a common port transmitting and receiving a radio frequency signal, a first switching unit including a plurality of first switch elements connected in series and opening or closing a signal transfer path between a first port inputting and outputting the radio frequency signal and the common port, and a second switching unit having a plurality of second switch elements connected in series and opening or closing a signal transfer path between a second port inputting and outputting the radio frequency signal and the common port. The second switching unit further includes a first filter circuit unit connected to a control terminal of at least one second switch element among the plurality of second switch elements to remove at least one preset frequency band signal.
4 Citations
13 Claims
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1. A radio frequency switch, comprising:
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a common port transmitting and receiving a radio frequency signal; a first switching unit having a plurality of first switch elements connected in series and opening or closing a signal transfer path between a first port inputting and outputting the radio frequency signal and the common port; and a second switching unit including a plurality of second switch elements connected in series and opening or closing a signal transfer path between a second port inputting and outputting the radio frequency signal and the common port, wherein the second switching unit further includes a first filter circuit unit connected to a control terminal of at least one second switch element of the plurality of second switch elements to remove at least one preset frequency band signal, and the first filter circuit unit is not directly connected to the signal transfer path of the second switching unit. - View Dependent Claims (2, 3, 4, 5, 7)
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6. A radio frequency switch, comprising:
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a common port transmitting and receiving a radio frequency signal; a first switching unit having a plurality of first switch elements connected in series and opening or closing a signal transfer path between a first port inputting and outputting the radio frequency signal and the common port; a second switching unit including a plurality of second switch elements connected in series and opening or closing a signal transfer path between a second port inputting and outputting the radio frequency signal and the common port; a first shunting unit connected between the second port and the second switching unit to conduct or block electricity on a signal transfer path between the second port and a ground; and a second shunting unit connected between the first port and the first switching unit to conduct or block electricity on a signal transfer path between the first port and a ground, wherein the first shunting unit has a plurality of third switch elements connected in series and the second shunting unit has a plurality of fourth switch elements connected in series, wherein the second switching unit further includes a first filter circuit unit connected to a control terminal of at least one second switch element of the plurality of second switch elements to remove at least one preset frequency band signal, and wherein the second shunting unit further includes a second filter circuit unit connected to a control terminal of at least one fourth switch element among the plurality of fourth switch elements, and the second filter circuit unit removes a second harmonic component input from the control terminal of the at least one fourth switch element.
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8. A radio frequency switch, comprising:
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a common port transmitting and receiving first and second radio frequency signals; a first switching unit having a plurality of first switch elements connected in series and opening or closing a signal transfer path between a first port inputting and outputting the first radio frequency signal and the common port; and a second switching unit including a plurality of second switch elements connected in series and opening or closing a signal transfer path between a second port inputting and outputting the second radio frequency signal and the common port, wherein the second switching unit further includes a first filter circuit unit connected to a control terminal of at least one second switch element among the plurality of second switch elements and having at least one capacitor and at least one inductor connected to the at least one capacitor in parallel or in series. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification