# 인체감지 센서용 저 잡음 10GHz대역 송수신기 설계

• 채규수 (백석대학교 정보통신학부)
• Accepted : 2012.11.20
• Published : 2012.11.30
• 43 12

#### Abstract

In this study, we propose a low-noise transceiver for 10GHz motion sensor. The transceiver presented here has a circuit(Hittite HMC908LC5) that is composed of a two way-$0^{\circ}$ power splitter(the 1:2 block) and a $90^{\circ}$ Hybrid. The noise reduction circuit utilizes an LNA followed by an image reject mixer which is driven by an LO buffer amplifier. A modeling and analysis have been pursued using CST MWS. A prototype sensor was manufactured to measure the performance and experimental results show that the proposed sensor is good enough to use for a accurate motion sensor.

#### Keywords

Low-noise;Motion sensor;X-band transceiver;Tx leakage;X-band antenna