US 12,456,992 B2 · Amplifier device using transformer with multi-loop structure and communication device using the same in wireless communication system

Abstract

A communication device configured to transmit/receive a radio frequency (RF) signal is provided. The device includes a transceiver including an amplifier device using a multi-loop inter-stage matching (ISM) transformer, and a processor configured to control an operation of the amplifier based on a signal strength during transmission/reception of the RF signal. The transformer is disposed between a first amplifier and a second amplifier and includes a plurality of primary loops and a plurality of secondary loops, each primary loop includes an inductor component having a different size and a different Q-factor and each secondary loop includes an inductor component having a different size and a different Q-factor. The processor adjusts an attenuation level of the transformer by controlling a switching connection to the first amplifier and the second amplifier for one primary loop among the plurality of primary loops and one secondary loop among the plurality of secondary loops.

Claims15

Dependent claims

A communication device configured to transmit/receive a radio frequency (RF) signal in a wireless communication system, comprising:

a transceiver including an amplifier device using a multi-loop inter-stage matching (ISM) transformer;
and
a processor configured to:
control an operation of the amplifier device based on a signal strength during transmission/reception of the RF signal,
wherein the multi-loop ISM transformer is disposed between a first amplifier and a second amplifier and includes a plurality of primary loops and a plurality of secondary loops, wherein each primary loop includes an inductor component and having a different size and a different Q-factor and each secondary loop includes an inductor component and having a different size and a different Q-factor, and
wherein the processor is further configured to:
adjust an attenuation level of the multi-loop ISM transformer by controlling a switching connection to the first amplifier and the second amplifier for one primary loop among the plurality of primary loops and one secondary loop among the plurality of secondary loops in the multi-loop ISM transformer.

4 more elements

An amplifier device included in a communication device configured to transmit/receive a radio frequency (RF) signal in a wireless communication system, the amplifier device comprising:

a plurality of amplifiers;
and
a multi-loop inter-stage matching (ISM) transformer disposed between a first amplifier and a second amplifier among the plurality of amplifiers and including a plurality of primary loops and a plurality of secondary loops, wherein each primary loop includes an inductor component and having a different size and a different Q-factor and each secondary loop includes an inductor component and having a different size and a different Q-factor,
wherein input ends of the plurality of primary loops are connected to output ends of the first amplifier through first switches,
wherein output ends of the plurality of secondary loops are connected to input ends of the second amplifier through second switches, and
wherein one primary loop among the plurality of primary loops and one secondary loop among the plurality of secondary loops are connected to the first amplifier and the second amplifier, respectively, through the first switches and the second switches to adjust an attenuation level of the multi-loop ISM transformer.

3 more elements

Dependencies are inferred from the claim text.

Amplifier device using transformer with multi-loop structure and communication device using the same in wireless communication system

Life of this patent

Amplifier device using transformer with multi-loop structure and communication device using the same in wireless communication system

Life of this patent

Abstract

Claims15