Samsung Electronics Co., Ltd.

Seong-Han Ryu

Hyun-Won Mun

Il-Ku Nam

Seung-chan Heo

Byeong-Ha Park

Sang-Yeob Lee

Jae-Hong Chang

Min-Kyu Je

Han-Gun Chung

Kwang-Seok Han

An integrated circuit (IC) includes multiple circuits isolated with respect to one another. Each circuit of the multiple circuits includes an inductor pair formed in a loop pattern on a same layer as at least one other inductor pair from another circuit of the multiple circuits, such that the inductor pair surrounds and is isolated from the at least one other inductor pair.

Multi-band low noise amplifier and multi-band radio frequency receiver including the same

A multi-band low noise amplifier (LNA) includes multiple low noise amplifying circuits configured to selectively operate in corresponding frequency bands. The low noise amplifying circuits include corresponding amplifying units and degenerating units. The degenerating units include first inductors, which are arranged in loop patterns isolated from each other on a same layer, such that one first inductor surrounds at least one other first inductor. A current flows through a selected first inductor included in a selected low noise amplifying circuit of the low noise amplifying circuits.

A gain controllable wide-band low noise amplifier includes a first transistor coupled to an input node and an output node and amplifying an input signal to generate an output signal, a second transistor allowing the output signal to feedback to the input node, and a control circuit complementarily controlling transconductance of the first and second transistors.

Gain controllable low noise amplifier and wireless communication receiver having the same

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