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公开(公告)号：KR100980678B1
公开(公告)日：2010-09-07
申请号：KR1020080101228
申请日：2008-10-15
Applicant: 한국과학기술원
IPC: H03H9/66
CPC classification number: H01P1/184
Abstract: 본 발명에 따른 위상 천이기는 기판의 소정 위치에 형성된 신호 라인과, 기판 내에 형성되어 상기 기판의 효과 유전율을 변화시켜 상기 신호 라인에 유기된 신호의 위상을 지연시키는 공기 공극을 포함한다.
이와 같이, 본 발명은 공기 공극으로 기판의 효과 유전율을 조절하여 신호의 위상을 지연시킴으로써, 기존의 위상 천이기와 비교하여 획기적으로 적은 삽입 손실을 갖고, 기판과 길이 변화가 없기 때문에 소형 제작이 가능한 장점이 있다.
위상천이기, 공기공극, 저손실-
公开(公告)号：KR101158661B1
公开(公告)日：2012-06-26
申请号：KR1020110053914
申请日：2011-06-03
Applicant: 한국과학기술원
CPC classification number: H04L27/2627
Abstract: PURPOSE: An OFDM(Orthogonal Frequency Division Multiplexing) circuit based on RF technology and a signal processing apparatus using the same are provided to the super high speed wireless transmission of more than 1Gbps in 1024 OFDMby performing the transmission of more than 1-10Mbps in one carrier wave. CONSTITUTION: A digital signal source(100) of the number of d×b generates carrier waves of the number of d×b by successively receiving a frequency locking signal having a signal value of the number of d×b. The digital signal source generates a digital modulation signal of the number of d×b by using the carrier waves of the number of d×b. The digital signal source comprises a spin digitally controlled oscillator(110) and a spin modulator(120) generating the digital modulation signal. A digital modulation controller(300) generates a modulated control signal of the number of d×b to control a digital spin modulation operation of the spin modulator. An amplifier(400) is located in an output terminal of an RF base OFDM circuit.
Abstract translation: 目的：基于RF技术的OFDM（正交频分复用）电路和使用该技术的信号处理装置，通过在1024个OFDM中执行超过1〜10Mbps的传输，提供1024个OFDM中超过1Gbps的超高速无线传输 载波。 构成：数字d×b的数字信号源（100）通过连续地接收具有d×b的信号值的频率锁定信号，生成d×b数的载波。 数字信号源通过使用数量为d×b的载波产生数字d×b的数字调制信号。 数字信号源包括自旋数字控制振荡器（110）和产生数字调制信号的自旋调制器（120）。 数字调制控制器（300）产生d×b数的调制控制信号，以控制自旋调制器的数字自旋调制操作。 放大器（400）位于RF基OFDM电路的输出端。
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公开(公告)号：KR1020100042091A
公开(公告)日：2010-04-23
申请号：KR1020080101228
申请日：2008-10-15
Applicant: 한국과학기술원
IPC: H03H9/66
CPC classification number: H01P1/184
Abstract: PURPOSE: A phase shifter is provided to implement small insertion loss through a phase delay of a signal by controlling an effect dielectric constant of a substrate with an air gap. CONSTITUTION: A GCPW(Ground Co-Planar Wave Guide) phase shifter is composed of a transfer substrate(100), a first metal layer(102), a signal line(104), a second metal layer(106), and an air gap(108). The transfer substrate is formed by using a plurality of ceramic substrates. The first metal layer is grounded in a lower part of the transfer substrate. A signal line is formed in the constant area of the upper part of the transfer substrate. The second metal layer is grounded in an upper part of the transfer substrate. The air gap is formed inside the transfer substrate between the first metal layer and the signal line.
Abstract translation: 目的：通过控制具有气隙的衬底的效应介电常数，提供移相器以通过信号的相位延迟来实现小的插入损耗。 构成：GCPW（地面共平面波导）移相器由转移基板（100），第一金属层（102），信号线（104），第二金属层（106）和空气 间隙（108）。 通过使用多个陶瓷基板来形成转印基板。 第一金属层在转印衬底的下部接地。 信号线形成在转印基板的上部的恒定区域中。 第二金属层在转印基板的上部接地。 在第一金属层和信号线之间的转移基板的内部形成气隙。
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