Abstract:
The invention relates to a resonator circuit (100), the resonator circuit (100) comprising a transformer (101) comprising a primary winding (103) and a secondary winding (105), wherein the primary winding (103) is inductively coupled with the secondary winding (105), a primary capacitor (107) being connected to the primary winding (103), the primary capacitor (107) and the primary winding (103) forming a primary circuit, and a secondary capacitor (109) being connected to the secondary winding (105), the secondary capacitor (109) and the secondary winding (105) forming a secondary circuit, wherein the resonator circuit (100) has a common mode resonance frequency at an excitation of the primary circuit in a common mode, wherein the resonator circuit (100) has a differential mode resonance frequency at an excitation of the primary circuit in a differential mode, and wherein the common mode resonance frequency is different from the differential mode resonance frequency.
Abstract:
The invention relates to a radio frequency oscillator (100), the radio frequency oscillator (100) comprising a resonator circuit (101) being resonant at an excitation of the resonator circuit (101) in a differential mode and at an excitation of the resonator circuit (101) in a common mode, wherein the resonator circuit (101) has a differential mode resonance frequency at the excitation in the differential mode, and wherein the resonator circuit (101) has a common mode resonance frequency at the excitation in the common mode, a first excitation circuit (103) being configured to excite the resonator circuit (101) in the differential mode to obtain a differential mode oscillator signal oscillating at the differential mode resonance frequency, and a second excitation circuit (105) being configured to excite the resonator circuit (101) in the common mode to obtain a common mode oscillator signal oscillating at the common mode resonance frequency.
Abstract:
The invention relates to an oscillator(300), comprising: a pair of transistors (301, 303) which source terminals (SOURCEA, SOURCEB) are interconnected and which drain (DRAINA, DRAINB) and gate (GATEA, GATEB) terminals are coupled by a positive feedback loop comprising an oscillator tank (309), wherein the source terminals (SOURCEA, SOURCEB) of the transistors (301, 303) are connected to a current source (305) configured to control physical parameters of the oscillator(300).
Abstract:
The invention relates to a radio frequency oscillator (100), the radio frequency oscillator (100) comprising a resonator circuit (101) being resonant at an excitation of the resonator circuit (101) in a differential mode and at an excitation of the resonator circuit (101) in a common mode, wherein the resonator circuit (101) has a differential mode resonance frequency at the excitation in the differential mode, and wherein the resonator circuit (101) has a common mode resonance frequency at the excitation in the common mode, a first excitation circuit (103) being configured to excite the resonator circuit (101) in the differential mode to obtain a differential mode oscillator signal oscillating at the differential mode resonance frequency, and a second excitation circuit (105) being configured to excite the resonator circuit (101) in the common mode to obtain a common mode oscillator signal oscillating at the common mode resonance frequency.