US 11,770,101 B2Granted

Radio frequency oscillator

AssigneeHuawei Technologies Co., Ltd.

InventorsMina Shahmohammadi, Masoud Babaie, Robert Bogdan Staszewski

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Abstract

The invention relates to a radio frequency oscillator, the radio frequency oscillator comprising a resonator circuit being resonant at an excitation of the resonator circuit in a differential mode and at an excitation of the resonator circuit in a common mode, wherein the resonator circuit has a differential mode resonance frequency at the excitation in the differential mode, and wherein the resonator circuit has a common mode resonance frequency at the excitation in the common mode, a first excitation circuit being configured to excite the resonator circuit in the differential mode to obtain a differential mode oscillator signal oscillating at the differential mode resonance frequency, and a second excitation circuit being configured to excite the resonator circuit in the common mode to obtain a common mode oscillator signal oscillating at the common mode resonance frequency.

Claims20

Dependent claims

A method for operating a radio frequency oscillator comprising a first oscillator component providing a first oscillator signal and a second oscillator component providing a second oscillator signal that are configured to be synchronized,

wherein the first oscillator component comprises:
a first inductor;
and
a first capacitor comprising a pair of single-ended capacitors that are coupled to a first end and a second end of the first inductor;
wherein the second oscillator component comprises:
a second inductor;
and
a second capacitor comprising a pair of differential capacitors that are coupled to a first end and a second end of the second inductor, and
wherein the method comprises:
exciting the radio frequency oscillator;
and
producing, as a result of the exciting, the first oscillator signal and the second oscillator signal,
wherein the pair of single-ended capacitors comprises a first single-ended capacitor and a second single-ended capacitor,
wherein a first end of the first single-ended capacitor is coupled to a first end of the first inductor, and a second end of the first single-ended capacitor is coupled to a ground potential, and
wherein a first end of the second single-ended capacitor is coupled to a second end of the first inductor, and a second end of the second single-ended capacitor is coupled to the ground potential.

12 more elements

A radio frequency oscillator comprising a first oscillator component providing a first oscillator signal and a second oscillator component providing a second oscillator signal that are configured to be synchronized,

wherein the first oscillator component comprises:
a first inductor;
and
a first capacitor comprising a pair of single-ended capacitors that are coupled to a first end and a second end of the first inductor,
wherein the pair of single-ended capacitors comprises a first single-ended capacitor and a second single-ended capacitor, wherein a first end of the first single-ended capacitor is coupled to a first end of the first inductor, and a second end of the first single-ended capacitor is coupled to a ground potential, and wherein a first end of the second single-ended capacitor is coupled to a second end of the first inductor, and a second end of the second single-ended capacitor is coupled to the ground potential;
and
wherein the second oscillator component comprises:
a second inductor;
and
a second capacitor comprising a pair of differential capacitors that are coupled to a first end and a second end of the second inductor.

7 more elements

wherein the first oscillator component comprises:
a first inductor;
and
a first capacitor comprising a pair of single-ended capacitors that are coupled to a first end and a second end of the first inductor,
wherein the pair of single-ended capacitors comprises a first single-ended capacitor and a second single-ended capacitor, wherein a first end of the first single-ended capacitor is coupled to a first end of the first inductor, and a second end of the first single-ended capacitor is coupled to a ground potential, and wherein a first end of the second single-ended capacitor is coupled to a second end of the first inductor, and a second end of the second single-ended capacitor is coupled to the ground potential;
and
wherein the second oscillator component comprises:
a second inductor;
and
a second capacitor comprising a pair of differential capacitors that are coupled to a first end and a second end of the second inductor;
wherein the pair of differential capacitors are connected in series,
wherein the pair of single-ended capacitors, during operation of the radio frequency oscillator, provide a reference to ground potential, and
wherein the pair of differential capacitors are configured to be not seen by excitation signals of the common mode.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/723,103Filed 18 Apr 2022 · continuation
Priority: 27 Jan 2015
Published: US 2022/0360219 A110 Nov 2022
Granted: 26 Sep 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

H03B 5/1243
The means comprising a voltage dependent capacitance: the means comprising voltage variable capacitance diodes
H03B 5/1218
Using multiple transistors for amplification: the generator being of the balanced type
H03B 5/1228
Active element in amplifier being semiconductor device: the amplifier comprising one or more field effect transistors
H03B 5/1262
Comprising means for varying the frequency of the generator: the means comprising switched elements

Family

PCT/EP2015/051574Parent of this continuation · filed 27 Jan 2015
Application15/659,322Parent of this continuation · filed 25 Jul 2017
Application16/848,528Parent of this continuation · filed 14 Apr 2020
US 10,644,648 B2Parent of this continuation · filed 5 May 2020
Application17/318,742Parent of this continuation · filed 12 May 2021
US 11,025,198 B2Parent of this continuation · filed 1 Jun 2021
US 2022/0360219 A1Pre-grant publication · published 10 Nov 2022
US 11,336,229 B2Parent of this continuation
US 2017/0324378 A1Published application
US 2020/0313617 A1Published application
US 2021/0336583 A1Published application
US 11,770,101 B2This patent

From the US filing history. Foreign family members aren’t listed.