Systems for and methods of signal division
AssigneeAvago Technologies International Sales Pte. Limited
InventorSeyed Mehrdad Babamir
Life of this patent
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Abstract
Wide-band output isolation is provided. A device includes a first output for a first radio frequency (RF) signal. A device includes a second output for a second RF signal. The device includes a first transistor having a first source/drain. The device includes a second transistor having a first source/drain, wherein the first source/drain of the first transistor is coupled to the first source/drain of the second transistor and wherein the first and second transistors are disposed between the first output and the second output.
Claims20
A power divider device, comprising:
- a first node configured to receive a first signal;
- a second node configured to provide a second signal;
- a third node configured to provide a third signal;
- an inductive element coupled between the first node and a power or ground node;
- a capacitive element coupled between the first node and a fourth node;
- a first T network coupled between the fourth node and the second node;
- and
- a second T network coupled between the third node and the fourth node, wherein the first T network comprises a first capacitor having a capacitance related to a power division ratio between the first node and the second node and a first value, and the second T network comprises a second capacitor having a capacitance related to a power division ratio between the first node and the third node and the first value.
A power divider device, comprising:
- a first node configured to receive a first signal;
- a second node configured to provide a second signal;
- a third node configured to provide a third signal;
- an inductive element coupled between the first node and a power or ground node;
- a capacitive element coupled between the first node and a fourth node;
- a first network coupled between the fourth node and the second node;
- a second network coupled between the third node and the fourth node, wherein the second node is coupled to a first load and the third node is coupled to a second load, wherein the first load has an impedance related to a power division ratio between the first node and the second node and a first value, and the second load has an impedance related to a power division ratio between the first node and the third node and the first value.
A method comprising:
- receiving at a first node a first signal;
- providing the first signal to a second node, wherein the second node is coupled to a first network, the first network comprising a first capacitor and a first inductor, the first capacitor being between the first node and the second node;
- providing a second signal from a second network to a third node, the second network being coupled to the first capacitor and the third node, the second network comprising a second capacitor and a third capacitor coupled in series and a second inductor coupled between the second capacitor and the third capacitor;
- and
- providing a third signal from a third network to a fourth node, the third network being coupled to the first capacitor and the fourth node, the third network comprising a fourth capacitor and a fifth capacitor coupled in series and a third inductor coupled between the fourth capacitor and the fifth capacitor, wherein the second inductor has an inductance related to a power division ratio between the first node and the second node and a first value, and the third inductor has an inductance related to a power division ratio between the first node and the third node and the first value.
Dependencies are inferred from the claim text.