Korea University Research and Business Foundation

Samsung Electronics Co., Ltd.

Samsung Electro-Mechanics Co., Ltd.

Korea University Industrial Academic Collaboration Foundation

Jae Sung Rieh

Jong Won Yun

Yun Kwon Park

Dong Hyun Kim

Jea Shik Shin

In Sang Song

Chul Gyun Park

Sung Woo Hwang

Byeong Kwon Ju

Nam Hyung Kim

Hee Tae Kim

The apparatus comprises a first coupler configured to receive two output signals, having 180&#xb0; phase difference, outputted from a first differential generator as two input signals, and output a first voltage signal generated by adding the two input signals and a second voltage signal corresponding to subtraction of the two input signals, a second coupler configured to receive two output signals, having 180&#xb0; phase difference, outputted from a second differential generator as two input signals, and output a third voltage signal generated by adding the two input signals and a fourth voltage signal corresponding to subtraction of the two input signals, a coupling network connected to the first differential generator and the second differential generator and a third coupler configured to output a signal generated by adding the voltage signal outputted from the first coupler and corresponding voltage signal outputted from the second coupler.

High frequency signal generation apparatus

An oscillator for high-frequency signal generation is disclosed. Provided according to the present invention is an oscillator for high-frequency signal generation comprising: a first transistor comprising a first collector for receiving a power supply voltage from a load, a first base connected to a ground, and a first emitter connected to the first base; and a second transistor comprising a second collector for receiving a power supply voltage from the load, a second base connected to a ground, and a second emitter connected to the second base, the oscillator having a common-base cross-coupled structure in which the first collector and the second emitter are cross-coupled and the second collector and the first emitter are cross-coupled.

Oscillator for high-frequency signal generation

A resonator and a method for manufacturing a resonator are provided. The method may include doping a wafer, and forming on the wafer a substrate, a drain electrode, a source electrode, a gate electrode, and at least one nanowire.

Resonator having terminals and a method for manufacturing the resonator

A broadband active circuit with a feedback structure includes: an active load unit providing a load varied according to a control voltage; an active circuit unit connected between the active load unit and a ground and outputting a signal corresponding to a pre-set bandwidth, among input signals; and a feedback circuit unit formed between an output terminal of the active circuit unit and the active load unit and providing a signal from the output terminal of the active circuit unit to the active load unit.

Wideband active circuit with feedback structure

Growing community of inventors

Seoul, South Korea

Jae Sung Rieh