Samsung Electronics Co., Ltd.

Georgia Tech Research Corporation

Yun-Seo Park

Chang-Ho Lee

Joy Laskar

Sang-Hyun Woo

Seong-soo Lee

Sang-Woong Yoon

Hyun-Il Kang

Hwan-Seok Song

Sebastien Nuttinck

Rajarshi Mukhopadhyay

Sebastian Nuttinck

An apparatus for generating an in-phase/quadrature-phase (I/Q) signal in a wireless transceiver is disclosed, including a local oscillator for generating an oscillation signal, and first and second mixers for mixing an oscillation signal with a transmission/reception signal to convert the transmission/reception signal into a baseband or high-frequency signal. The apparatus includes a phase locked circuit for controlling the local oscillator, and a polyphase filter installed between the local oscillator and the mixers, for separating the oscillation signal from the local oscillator into an I signal and a Q signal depending on a control signal from the phase locked circuit, and outputting the separated I and Q signals to the first and second mixers, respectively.

Wideband I/Q signal generation device

Disclosed is an ultra wide band signal generator. The ultra wide band signal generator generates a signal of a required frequency using a harmonic signal having a frequency range of a ultra wide band (UWB). The ultra wide band signal generator includes an active inductor for generating harmonic signals having power strengths substantially equal to each other within a non-linear operation range, the tunable active inductor capable of tuning a value thereof, an oscillator for amplifying and outputting the harmonic signals generated from the active inductor by frequency-transiting the harmonic signals into high frequency bands, and a filter for selectively outputting one of the harmonic signals output from the oscillator.

Ultra wide band signal generator

Growing community of inventors

Atlanta, GA, United States of America

Yun-Seo Park