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公开(公告)号：US09641213B2
公开(公告)日：2017-05-02
申请号：US14614728
申请日：2015-02-05
Inventor： Jung Hoon Oh , Heon Kook Kwon
CPC classification number: H04B1/48 , H04B1/0057 , H04L5/143 , H04L5/1469
Abstract: Provided is a transceiver. The transceiver includes: a transmission unit modulating at least one of a plurality of baseband transmit signals to an RF band and amplifying the modulated at least one; a duplexer transmitting transmit signals outputted from the transmission unit to an antenna by selecting a signal in a downlink frequency band or an uplink frequency band or filtering a receive signal received from the antenna by the downlink frequency band or the uplink frequency band; a reception unit demodulating the receive signals in the downlink frequency band or the uplink frequency band from the duplexer into at least one baseband signal; a first switch delivering a transmit signal provided from the transmission unit to a first RF band filter of the duplexer in a first communication mode and a second communication mode; and a second switch delivering a first receive signal delivered from a second RF band filter of the duplexer to the reception unit in the first communication mode and a third communication mode, wherein each of the transmission unit and the reception unit includes one power amplifier and one low noise amplifier.
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2.发明授权公开(公告)号：US09397870B2
公开(公告)日：2016-07-19
申请号：US14636728
申请日：2015-03-03
Inventor： Heon Kook Kwon , Myung Don Kim , Kwangchun Lee , Young Jun Chong
CPC classification number: H04L25/061 , H04J11/004 , H04J11/0066 , H04L1/206 , H04L25/0212 , H04L27/22 , H04L27/3863
Abstract: A signal receiving device for measuring a characteristic of a wireless communication channel is provided. The signal receiving device includes an analog signal processor, an analog-digital converter, and a digital signal processor. The analog signal processor generates a band-limited signal by decreasing an intensity of a signal having an image frequency in a correlation operation result signal being a result of correlation operation, and generates an intermediate frequency signal by transforming the band-limited signal. The analog-digital converter converts the intermediate frequency signal into a digital signal. The digital signal processor generates a demodulated signal by performing in-phase/quadrature-phase modulation on the digital signal, the demodulated signal including a baseband signal, which includes a direct current component, and signals repeated at constant frequency intervals with a same bandwidth as the baseband signal, and generates an impulse response signal by decreasing intensities of the repeated signals in the demodulated signal.
Abstract translation: 提供了一种用于测量无线通信信道的特性的信号接收装置。 信号接收装置包括模拟信号处理器，模拟数字转换器和数字信号处理器。 模拟信号处理器通过减小作为相关运算结果的相关运算结果信号中具有图像频率的信号的强度来产生频带限制信号，并且通过变换频带限制信号来产生中频信号。 模数转换器将中频信号转换为数字信号。 数字信号处理器通过对数字信号执行同相/正交相位调制来产生解调信号，该解调信号包括包括直流分量的基带信号和以恒定频率间隔以与 基带信号，并且通过降低解调信号中的重复信号的强度来产生脉冲响应信号。
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公开(公告)号：US09807775B2
公开(公告)日：2017-10-31
申请号：US14612727
申请日：2015-02-03
Inventor： Heon Kook Kwon , Byung Su Kang , Kwangchun Lee
CPC classification number: H04W72/082 , H04L5/14 , H04W72/0453
Abstract: A terminal for performing device-to-device (D2D) communication, according to an embodiment of the present invention, includes an antenna configured to transmit/receive an uplink channel signal and a downlink channel signal, a duplexer configured to separate a transmission/reception signal of the antenna into the uplink channel signal and the downlink channel signal, a switch configured to switch the uplink channel signal in a time division duplex (TDD) scheme so as to separate the uplink channel signal into an uplink transmission block and a first reception block, and a second reception block configured to convert the downlink channel signal provided from the duplexer into a baseband.
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公开(公告)号：US09799962B2
公开(公告)日：2017-10-24
申请号：US14518714
申请日：2014-10-20
Inventor： Jung Nam Lee , Kwangchun Lee , Gweon Do Jo , Heon Kook Kwon , Byung Su Kang , Jung Hoon Oh
Abstract: Provided is a dual-polarized dipole antenna. The dual-polarized dipole antenna includes a substrate etched as first and second microstrip lines and provided in a cube, first to fourth feeding lines etched as third microstrip lines and disposed in a square type in a vertical direction to the substrate, and first to fourth radiation patches disposed in a square type in the vertical direction to the first to fourth feeding unit, wherein the first to fourth feeding units are respectively disposed on adjacent pairs of the first to fourth radiation patches. According to the present invention, a miniature dual-polarized dipole antenna having a wide bandwidth, high isolation characteristics, and a high gain can be provided.
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