Balanced Frequency Doubler

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention describes a balanced frequency doubler circuit that takes in four phase-shifted input signals at the same fundamental frequency and, through two frequency doublers, generates balanced output signals at twice the original frequency. The design works by manipulating phase relationships and combining currents from both units to enhance output signal balance at the desired second harmonic frequency.

Use CasesContent extracted from patent full text and abstract with AI.

• Signal processing systems for telecommunications, such as radio transmitters or receivers
• RF (Radio Frequency) front-ends for wireless communication devices
• Phase-locked loops and mixers in electronic instrumentation
• Frequency synthesizers and converters for test and measurement equipment
• Digital or analog systems requiring clean frequency multiplication with minimal distortion

BenefitsContent extracted from patent full text and abstract with AI.

• Produces balanced output signals, which helps reduce noise and unwanted harmonics
• Improves frequency doubling efficiency and output signal quality
• Enables precise control via phase-shifted inputs for improved flexibility
• Can be integrated into various high-frequency applications for more reliable signal processing
• Reduces signal distortion and improves overall system performance

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention inter alia relates to a balanced frequency doubler comprising a first frequency doubler unit providing a first input port and a second input port, a second frequency doubler unit providing a third input port and a fourth input port, wherein the first, second, third and fourth input port are configured to receive a first, second, third and fourth input signal, respectively, wherein the first, second, third and fourth input signals all have the same first harmonic frequency, but are phase-shifted relative to one another, wherein a first current, the frequency spectrum of which comprises a second harmonic frequency that is double the first harmonic frequency, is driven through the first frequency doubler unit in response to the first and second input signal, wherein a second current, the frequency spectrum of which also comprises the second harmonic frequency, is driven through the second frequency doubler unit in response to the third and fourth input signals, and wherein a balanced output signal of the frequency doubler is influenced by the first and second current.