Samsung Electronics Co., Ltd.

Qualcomm Incorporated

Tianzuo Xi

Xiangdong Zhang

Daquan Huang

Xinwei Wang

ZhenQi Chen

Yan Kit Gary Hau

Jing-Hwa Chen

Zhenying Luo

Yanjie Sun

Haichuan Kang

A circuit including a radio frequency (RF) amplifier including a transistor configured to receive an RF signal at its control terminal, a capacitor coupled to a first terminal of the transistor, an inductor coupled to a second terminal of the transistor, wherein the capacitor and inductor form a loop from the first terminal to the second terminal, wherein the loop bypasses a parasitic inductance between the second terminal and ground.

Systems and methods providing a matching circuit that bypasses a parasitic impedance

A method and apparatus for frequency conversion. The apparatus includes a mixer configured to provide an output signal with a converted frequency, a local oscillator, and a non-linear transmission structure operably connected to the mixer and the local oscillator. The non-linear transmission structure is configured to cancel at least a portion of non-linearity of the mixer from the output signal and to modify a gain of the output signal. The local oscillator may provide a local oscillator signal to the non-linear transmission structure. The non-linear transmission structure may also be configured to modify the local oscillator signal to cancel at least the portion of the non-linearity of the mixer and to modify the gain of the output signal, and provide the modified local oscillator signal to the mixer.

Non-linear capacitance based parametric mixer

Growing community of inventors

Waltham, MA, United States of America

Tianzuo Xi