One-coil multi-core inductor-capacitor oscillator

A one-coil multi-core inductor-capacitor (LC) oscillator, comprising:

• a main coil, comprising:
• an outer wire, coupled to a first core circuit and a second core circuit of the one-coil multi-core LC oscillator;
• and
• a central wire, coupled between a first node and a second node of the outer wire;
• wherein an outer loop formed by the outer wire corresponds to a first mode of the one-coil multi-core LC oscillator, and inner loops formed by the outer wire and the central wire correspond to a second mode of the one-coil multi-core LC oscillator;
• and
• at least one mode suppression device, configured to suppress one of the first mode and the second mode, wherein the at least one mode suppression device comprises:
• a twisted mutual coil, configured to form a close loop for suppressing the second mode, in order to make the one-coil multi-core LC oscillator operate in the first mode, wherein a first segment of the twisted mutual coil and a second segment of the twisted mutual coil are placed to be concentric with the main coil.

A one-coil multi-core inductor-capacitor (LC) oscillator, comprising:

• a main coil, comprising:
• an outer wire, coupled to a first core circuit and a second core circuit of the one-coil multi-core LC oscillator;
• and
• a central wire, coupled between a first node and a second node of the outer wire;
• wherein an outer loop formed by the outer wire corresponds to a first mode of the one-coil multi-core LC oscillator, and inner loops formed by the outer wire and the central wire correspond to a second mode of the one-coil multi-core LC oscillator;
• and
• at least one mode suppression device, configured to suppress one of the first mode and the second mode, wherein the at least one mode suppression device comprises:
• a mutual coil, configured to form a close loop for suppressing the first mode, in order to make the one-coil multi-core LC oscillator operate in the second mode;
• wherein the mutual coil is placed to be concentric with the main coil.

A one-coil multi-core inductor-capacitor (LC) oscillator, comprising:

• a main coil, comprising:
• an outer wire, coupled to a first core circuit and a second core circuit of the one-coil multi-core LC oscillator, and
• a central wire, coupled between a first node and a second node of the outer wire,
• wherein an outer loop formed by the outer wire corresponds to a first mode of the one-coil multi-core LC oscillator, and inner loops formed by the outer wire and the central wire correspond to a second mode of the one-coil multi-core LC oscillator, and
• at least one mode suppression device, configured to suppress one of the first mode and the second mode,
• wherein:
• a first segment of the outer wire is coupled between the first core circuit and the second core circuit, a second segment of the outer wire is coupled between the second core circuit and a third core circuit, a third segment of the outer wire is coupled between the third core circuit and a fourth core circuit, and a fourth segment of the outer wire is coupled between the fourth core circuit and the first core circuit, wherein the first segment of the outer wire comprise the first node, the second segment of the outer wire comprise the second node, the third segment of the outer wire comprise a third node, and the fourth segment of the outer wire comprises a fourth node;
• and
• a first segment of the central wire is coupled between the first node of the outer wire and a central node of the central wire, a second segment of the central wire is coupled between the second node of the outer wire and the central node of the central wire, a third segment of the central wire is coupled between the third node of the outer wire and the central node of the central wire, and a fourth segment of the central wire is coupled between the fourth node of the outer wire and the central node of the central wire.