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Power amplifier and impedance adjustment circuit |
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Pulse shaping circuit for improving spectrum efficiency and on-off keying (OOK) transmitter including pulse shaping circuit |
Jae Sup Lee, Han Kyu Lee, Dae-Chul Jeong, Tae-Young Chung |
2017-08-01 |
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Apparatus and method for high-efficiency envelope amplifier using adjustment of switch current |
Dong-Su Kim, Joo Seung KIM |
2017-06-20 |
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Leakage current-based delay circuit |
Jaesup Lee, Tae-Young Chung, Dae-Chul Jeong |
2017-05-30 |
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Transmitter for supporting multimode and multiband using multiple radio frequency (RF) digital-to-analog converters (DAC) and control method of the transmitter |
Nam-Jeong Lee, Dong Soo Kim, Ha Dong JIN, Byung-Chang Kang, Jong Ho Bang +1 more |
2017-04-25 |
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Low power circuit for reducing leakage power using negative voltage |
Jae Sup Lee, Seong-Joong Kim, Han Kyu Lee, Dae-Chul Jeong, Tae-Young Chung |
2016-09-06 |
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Multi-mode Doherty power amplifier |
Yun Sung CHO, Dae Hyun Kang |
2015-02-03 |
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Power amplifier linearization method and apparatus |
Jung-Hwan Moon |
2013-11-19 |
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RF receiver and method to receive, amplify, sample, down convert, anti-aliasing filter, and ADC convert an RF signal |
Hyung-Sun Lim, Jin-Soo Park, Heung-bae Lee, Young-eil Kim, Sang-yoon Jeon +2 more |
2013-03-05 |
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Power amplification apparatus |
Dae Hyun Kang |
2013-02-05 |
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Apparatus for improving performance at low power region in a Doherty amplifier |
Young-Yoon Woo, Han-Seok Kim, Dong Geun Lee, Jung-Hwan Moon |
2012-05-29 |
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Apparatus and method for power transmitter in wireless communication system |
Cheol-Woo Ahn, Keun-Hyo Song, Cheol-Soo Seo, Young-Yoon Woo, Il-Du Kim |
2012-01-31 |
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High-efficiency power amplification apparatus using saturated operation and method for controlling the same |
Young Yun Woo, Jang Heon Kim, Cheol-Soo Seo, Jung-Hwan Moon, Jung Joon KIM |
2011-08-30 |
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Power transmission apparatus in wireless communication systems |
Han-Seok Kim, Jin-Sung Kim |
2011-04-12 |
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Low noise amplifier |
Hyung-Sun Lim, Jin-Soo Park, Heung-bae Lee, Young-eil Kim, Sang-yoon Jeon +2 more |
2010-09-28 |
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Voltage-controlled oscillator using LC resonator |
Yu Jin Chung, Jong-Ryul Lee, Kwang Jun Yun |
2009-10-27 |
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Apparatus and method for high efficiency power amplification for a mobile communication system |
Dong Geun Lee, Jeong-Hyeon Cha |
2009-06-23 |
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Input matching apparatus and method for power amplifier using delta-sigma modulated signal |
Dong Geun Lee, Jeong-Hyeon Cha |
2009-02-10 |
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Linear amplifier using frequency 2nd order intermodulation feed-forwarding method |
Youn Goo Yang, Sang Hoon Kang |
2002-12-17 |