Hyunjeong Park

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In this paper, a low-cost, compact form factor UWB impulse transmitter module is presented for impulse radio communication and radar. It consists of an impulse generator on chip, a compact UWB band pass filter (BPF) for impulse shaping, an amplifier in pakage, and a printed planar UWB antenna on board. The small BPF which has a low insertion loss is(More)
Corticotropin releasing hormone (CRH) is a major regulator of the stress response. This study examined whether CRH regulates interleukin-18 expression on microglia, BV2. Our data show that CRH enhanced IL-18 expression and significantly induced the secretion of functional IL-18 protein. Furthermore, CRH induced IL-18 production could be blocked by(More)
&ULTRAWIDEBAND (UWB) WIRELESS communication systems are emerging as a promising solution for high-data-rate and short-distance wireless data transmission. The US Federal Communications Commission (FCC) has defined a UWB system as one whose fractional bandwidth is more than 20% or whose absolute bandwidth is wider than 500 MHz between 3.1 GHz and 10.6 GHz. 1(More)
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