Reactance cancelling radio frequency circuit array

Patent metadata

Field	Value
Publication number	US-12230895-B2
Application number	US-202318312083-A
Country	US
Kind code	B2
Filing date	May 4, 2023
Priority date	Dec 15, 2021
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

A reactance cancelling radio frequency (RF) circuit array is disclosed. The reactance cancelling RF circuit array includes multiple RF circuits each coupled to one or two adjacent RF circuits by one or two pairs of coupling mediums each having a respective length less than one-quarter wavelength. In one aspect, an RF input signal is first split across the RF circuits and then combined to form an RF output signal. As a result, each RF circuit requires a lower power handling capability to process a portion of the RF input signal. In another aspect, each pair of the coupling mediums can cause reactance cancellation in each reactance-cancelling pair of the RF circuits. By coupling the RF circuits via the coupling mediums and enabling splitting-combining among the RF circuits, it is possible to miniaturize the reactance cancelling RF circuit array for improved performance across a wide frequency spectrum.

First claim

What is claimed is:

1. A reactance cancelling radio frequency (RF) circuit array comprising:
an input medium comprising a plurality of first coupling mediums configured to split an RF signal into a plurality of RF output signals each comprising a respective portion of the RF signal;
a plurality of signal outputs each configured to output a respective one of the RF output signals; and
a plurality of RF circuits each provided between the input medium and a respective one of the plurality of signal outputs and configured to provide the respective one of the plurality of RF output signals to the respective one of the plurality of signal outputs; wherein:
each of the plurality of RF circuits is coupled to a respective one or two adjacent RF circuits among the plurality of RF circuits via a respective one or two of the plurality of first coupling mediums to thereby divide the plurality of RF circuits into one or more reactance-cancelling pairs each comprising a pair of the plurality of RF circuits; and
the plurality of first coupling mediums is configured to cause a reactance cancellation between the pair of the plurality of RF circuits in each of the one or more reactance-cancelling pairs.

2. The reactance cancelling RF circuit array of claim 1 , wherein the input medium is further configured to split the RF signal into the plurality of RF output signals each comprising an equal portion of the RF signal.

3. A reactance cancelling radio frequency (RF) circuit array comprising:
an output medium comprising a plurality of second coupling mediums configured to combine a plurality of RF input signals each comprising a respective portion of an RF signal into an RF output signal and output the RF output signal via a signal output;
a plurality of signal inputs each configured to receive a respective one of the RF input signals; and
a plurality of RF circuits each provided between a respective one of the plurality of signal inputs and the output medium and configured to provide the respective one of the RF input signals to the output medium; wherein:
each of the plurality of RF circuits each is coupled to a respective one or two adjacent RF circuits among the plurality of RF circuits via a respective one or two of the plurality of second coupling mediums to thereby divide the plurality of RF circuits into one or more reactance-cancelling pairs each comprising a pair of the plurality of RF circuits; and
the plurality of second coupling mediums is configured to cause a reactance cancellation between the pair of the plurality of RF circuits in each of the one or more reactance-cancelling pairs.

4. The reactance cancelling RF circuit array of claim 3 , wherein each of the plurality of RF input signals comprises an equal portion of the RF signal.

5. A wireless device comprising a reactance cancelling radio frequency (RF) circuit array, the reactance cancelling RF circuit array comprises:
an input medium comprising a plurality of first coupling mediums configured to split an RF signal into a plurality of RF output signals each comprising a respective portion of the RF signal;
a plurality of signal outputs each configured to output a respective one of the RF output signals; and
a plurality of RF circuits each provided between the input medium and a respective one of the plurality of signal outputs and configured to provide the respective one of the plurality of RF output signals to the respective one of the plurality of signal outputs; wherein:
each of the plurality of RF circuits is coupled to a respective one or two adjacent RF circuits among the plurality of RF circuits via a respective one or two of the plurality of first coupling mediums to thereby divide the plurality of RF circuits into one or more reactance-cancelling pairs each comprising a pair of the plurality of RF circuits; and
the plurality of first coupling mediums is configured to cause a reactance cancellation between the pair of the plurality of RF circuits in each of the one or more reactance-cancelling pairs.

6. A wireless device comprising a reactance cancelling radio frequency (RF) circuit array, the reactance cancelling RF circuit array comprises:
an output medium comprising a plurality of second coupling mediums configured to combine a plurality of RF input signals each comprising a respective portion of an RF signal into an RF output signal and output the RF output signal via a signal output;
a plurality of signal inputs each configured to receive a respective one of the RF input signals; and
a plurality of RF circuits each provided between a respective one of the plurality of signal inputs and the output medium and configured to provide the respective one of the RF input signals to the output medium; wherein:
each of the plurality of RF circuits is coupled to a respective one or two adjacent RF circuits among the plurality of RF circuits via a respective one or two of the plurality of second coupling mediums to thereby divide the plurality of RF circuits into one or more reactance-cancelling pairs each comprising a pair of the plurality of RF circuits; and
the plurality of second coupling mediums is configured to cause a reactance cancellation between the pair of the plurality of RF circuits in each of the one or more reactance-cancelling pairs.

Assignees

• Qorvo Us Inc

Inventors

• Lear Kelly M
• Klemmer Nikolaus
• Galipeau Jeffery

Classifications

• H03F1/565

  using inductive elements · CPC title

• H03F2200/294

  the amplifier being a low noise amplifier [LNA] · CPC title

• H03F1/14

  by use of neutralising means · CPC title

• H03F2200/451

  the amplifier being a radio frequency amplifier · CPC title

• H03F3/605

  Distributed amplifiers · CPC title