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US 11,695,392 B2Granted
High frequency integrated circuit for wireless communication
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorsYuki Kamijyo, Hironori Nagasawa
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Abstract
According to an embodiment, a high frequency integrated circuit includes a signal splitter, an attenuator, a first conductive element, and first to eighth switches. The signal splitter receives a high frequency signal at an input terminal, splits the high frequency signal to two lines, and outputs the signals split into the two lines from a first output terminal and a second output terminal. The attenuator has multiple amounts of attenuation values. In the first conductive element, a first amount of attenuation is set. The high frequency integrated circuit outputs a plurality of output signals having different gain values from the first high frequency output terminal and the second high frequency output terminal, respectively.
Claims19
A high frequency integrated circuit comprising:
- a signal splitter configured to receive a high frequency signal at an input terminal, to split the high frequency signal into two lines, and to output the signals split into the two lines from a first output terminal and a second output terminal, respectively;
- an attenuator in which multiple amounts of attenuation are set;
- a first conductive element in which a first amount of attenuation is set;
- a first switch placed between the first output terminal of the signal splitter and the first conductive element, and configured to select conductive or non-conductive between the first output terminal of the signal splitter and the first conductive element;
- a second switch placed between the first output terminal of the signal splitter and the attenuator, and configured to select conductive or non-conductive between the first output terminal of the signal splitter and the attenuator;
- a third switch placed between a second output terminal of the signal splitter and the first conductive element, and configured to select conductive or non-conductive between the second output terminal of the signal splitter and the first conductive element;
- a fourth switch placed between the second output terminal of the signal splitter and the attenuator, and configured to select conductive or non-conductive between the second output terminal of the signal splitter and the attenuator;
- a fifth switch placed between the first conductive element and a first high frequency output terminal, and configured to select conductive or non-conductive between the first conductive element and the first high frequency output terminal;
- a sixth switch placed between the first conductive element and a second high frequency output terminal, and configured to select conductive or non-conductive between the first conductive element and the second high frequency output terminal;
- a seventh switch placed between the attenuator and the first high frequency output terminal, and configured to select conductive or non-conductive between the attenuator and the first high frequency output terminal;
- and
- an eighth switch placed between the attenuator and the second high frequency output terminal, and configured to select conductive or non-conductive between the attenuator and the second high frequency output terminal, wherein
- the first to fourth switches are, respectively, arranged directly between the signal splitter and one of the attenuator and the conductive element,
- the fifth to eighth switches are, respectively, arranged directly between one of the attenuator and the conductive element and one of the first high frequency output terminal and the second high frequency output terminal, and
- the high frequency integrated circuit outputs a plurality of output signals having different gain values from the first high frequency output terminal and the second high frequency output terminal, respectively.
12 more elements
A high frequency integrated circuit comprising:
- a signal splitter configured to receive a high frequency signal at an input terminal, to split the high frequency signal into n lines, n being an integer equal to or above 3, and to output the signals split into the n lines from first to n-th output terminals, respectively;
- first to (n−1)-th attenuators in which multiple amounts of attenuation are set are set;
- a first conductive element in which a first amount of attenuation is set;
- a first single-pole-n-throw switch group placed between the signal splitter and a set of the first to (n−1)-th attenuators and the first conductive element, and including n single-pole-n-throw switches arranged and configured to select conductive or non-conductive between one of the first to n-th output terminals of the signal splitter and one of the set of the first to (n−1)-th attenuators and the first conductive element, and to turn off between the one of the first to n-th output terminals of the signal splitter and the rest of the set of the first to (n−1)-th attenuators and the first conductive element;
- and
- a second single-pole-n-throw switch group placed between the set of the first to (n−1)-th attenuators and the first conductive element and a set of first to n-th high frequency output terminals, and including n single-pole-n-throw switches arranged and configured to select conductive or non-conductive between one of the set of the first to (n−1)-th attenuators and the first conductive element and one of the first to n-th high frequency output terminals and to turn off between the one of the set of the first to (n−1)-th attenuators and the first conductive element and the rest of the first to n-th high frequency output terminals, wherein
- the high frequency integrated circuit outputs a plurality of output signals having different gain values from the first to n-th high frequency output terminals, respectively.
4 more elements
A high frequency integrated circuit comprising:
- a signal splitter configured to receive a high frequency signal at an input terminal, to split the high frequency signal into two lines, and to output the signals split into the two lines from a first output terminal and a second output terminal, respectively;
- a first attenuator in which multiple amounts of attenuation are set;
- a second attenuator in which a plurality of amounts of attenuation having different values are set, and the amounts of attenuation are the same as the amounts of attenuation in the first attenuator;
- a first switch placed between a first output terminal of the signal splitter and the first attenuator, and configured to select conductive or non-conductive between the first output terminal of the signal splitter and the first attenuator;
- a second switch placed between the first output terminal of the signal splitter and the second attenuator, and configured to select conductive or non-conductive between the first output terminal of the signal splitter and the second attenuator;
- a third switch placed between a second output terminal of the signal splitter and the first attenuator, and configured to select conductive or non-conductive between the second output terminal of the signal splitter and the first attenuator;
- a fourth switch placed between the second output terminal of the signal splitter and the second attenuator, and configured to select conductive or non-conductive between the second output terminal of the signal splitter and the second attenuator;
- a fifth switch placed between the first attenuator and a first high frequency output terminal, and configured to select conductive or non-conductive between the first attenuator and the first high frequency output terminal;
- a sixth switch placed between the first attenuator and a second high frequency output terminal, and configured to select conductive or non-conductive between the first attenuator and the second high frequency output terminal;
- a seventh switch placed between the second attenuator and the first high frequency output terminal, and configured to select conductive or non-conductive between the second attenuator and the first high frequency output terminal;
- and
- an eighth switch placed between the second attenuator and the second high frequency output terminal, and configured to select conductive or non-conductive between the second attenuator and the second high frequency output terminal, wherein
- the first to fourth switches are, respectively, arranged directly between the signal splitter and one of the first attenuator and the second attenuator,
- the fifth to eighth switches are, respectively, arranged directly between one of the first attenuator and the second attenuator and one of the first high frequency output terminal and the second high frequency output terminal, and
- the high frequency integrated circuit outputs a plurality of output signals having different gain values from the first high frequency output terminal and the second high frequency output terminal, respectively.
12 more elements
Dependencies are inferred from the claim text.