Dual-band coupled VCO
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsMingquan Bao, Björn Albinsson
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Abstract
In a dual band capable voltage controlled oscillator VCO circuit comprising two voltage controlled oscillator units VCO1, VCO2, the voltage controlled oscillator units VCO1, VCO2 are synchronized and connected via at least two coupled transmission lines TL1, TL2, the transmission lines (TL1, TL2) are arranged to operate according to one of two modes to enable varying a combined inductance of the synchronized oscillator units VCO1, VCO2 and the oscillation frequency for the voltage controlled oscillator circuit VCO.
Claims8
A dual band capable voltage controlled oscillator (VCO) circuit, comprising:
- two voltage controlled oscillator units;
- and
- at least two transmission lines, wherein the two voltage controlled oscillator units are synchronized and coupled to each other via the at least two transmission lines, the at least two transmission lines being arranged to operate according to one of two modes to enable varying a combined inductance of the synchronized two oscillator units and an oscillation frequency of the VCO circuit.
A dual band capable voltage controlled oscillator (VCO) circuit, comprising:
- two voltage controlled oscillator units;
- and
- at least two coupled transmission lines, wherein the two voltage controlled oscillator units are synchronized and coupled to each other via the at least two coupled transmission lines, the at least two coupled transmission lines being coupled to one another and arranged to operate according to one of two modes to enable varying a combined inductance of the synchronized two oscillator units and an oscillation frequency of the VCO circuit.
Dependencies are inferred from the claim text.