Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Ho-Jun Chang"'
Autor:
Ho-Jun Chang
Publikováno v:
Chinese Studies. 51:203-221
Autor:
Hyo-Joo Ahn, Jae-Young Lee, Yoon-Joo Eom, Seok-Hun Hyun, Junha Lee, Kyoung-Ho Kim, Jong-Min Bang, Yong-Cheol Bae, Hye-Ran Kim, Hoon Lee, Jong-Hyuk Kim, Joon-Young Park, Seung-Jun Shin, Ki-Han Kim, Tae-Young Oh, Hanna Park, Hyuck-Joon Kwon, Young-Ryeol Choi, Yoon-Hwan Yoon, In-Dal Song, Youn-sik Park, Su-Jin Park, Soo-bong Chang, Kwang-Il Park, Kyong-Ho Jeon, Jin-Hee Park, Jung-Sik Kim, Chang-Kyo Lee, Young Sang Choi, Yoon-Gyu Song, Hyong-Ryol Hwang, Du-Yeul Kim, Gyo-Young Jin, Ho-Jun Chang, Seong-Jin Jang, Jung-Hwan Choi, Seung-Jun Bae
Publikováno v:
ISSCC
With growing demand for low-power mobile applications, such as wearable devices, smart phones and tablet PCs, low-power mobile DRAM has been identified as a mandatory requirement for low-power system designs. The recently developed LPDDR4 [1] is stil
Publikováno v:
Microwave and Optical Technology Letters. 54:2751-2754
This article presents a K-band CMOS voltage controlled oscillator (VCO) using a wide tuning range MOSFET varactor. The proposed varactor consists of a MOSFET in which the source and drain are connected to each other through a large resistor, the body
Publikováno v:
Analog Integrated Circuits and Signal Processing. 73:955-960
An LC-tank quadrature voltage-controlled oscillator (QVCO) is proposed to achieve frequency-band reconfigurability and low phase noise. In this work, phase noise contributed by the 1/f noise of coupling transistors and tail transistors is noticeably
Publikováno v:
Microwave and Optical Technology Letters. 53:1069-1074
This letter presents a band-selectable LNA with high gain and low noise in 0.25-μm RF CMOS technology.The proposed reconfigurable LNA uses two techniques: optimized spiral inductors and a switched capacitor technique. The gain and noise figure of th
Publikováno v:
IEEE Microwave and Wireless Components Letters. 24:608-610
Publikováno v:
IEEE Microwave and Wireless Components Letters. 20:337-339
A 5.8 GHz LC-tank quadrature voltage-controlled oscillator (QVCO) is proposed for achieving low phase noise. Phase noise contributed by the tank voltage amplitude and the 1/f noise of the tail transistors were simultaneously improved when the splitti
Publikováno v:
2012 IEEE 12th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems.
A common-gate (CG) low-noise amplifier using the current-reused technique is proposed for both ultra-wideband and low-power consumption. The CG amplifier, employed at the input stage, enables wide-band input matching with low transconductance and the
Autor:
Ki-Won Kim, Jin-Hong Park, Myoung-Gyun Kim, Tae-Yeoul Yun, Ho-Jun Chang, Sung Jun Kim, Hyuk Sun
Publikováno v:
2007 IEEE International Workshop on Radio-Frequency Integration Technology.
We present a topology to provide tolerate quadrature signals in a MB-OFDM UWB frequency synthesizer. This frequency synthesizer is modified to replace a RC-CR network (RC-CR phase shifter) with a frequency division network (dual-mode divider), elimin
Publikováno v:
IET Microwaves, Antennas & Propagation. 6:793
A common-gate (CG) low-noise amplifier (LNA) that uses the current-reuse technique and is intended to achieve both ultra-wideband and low-power consumption is proposed. The CG amplifier enables wide-band input matching with low transconductance and l