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公开(公告)号：US11527996B2
公开(公告)日：2022-12-13
申请号：US17496984
申请日：2021-10-08
Inventor： Dong Hwan Shin , Dong Pil Chang , Byoung Hak Kim , Seong Mo Moon , In Bok Yom , Jun Han Lim , Jin Cheol Jeong , In Kwon Ju
Abstract: Provided is a FET resistive frequency mixing device having improved RF-LO and IF-LO isolations. The frequency mixing device includes: a field effect transistor (FET), a local oscillation matching circuit connected to a gate of the FET to transfer a local oscillation signal to the gate of the FET, a gate biasing circuit connected to the gate of the FET, a radio frequency (RF) matching circuit having a first terminal connected to a drain side of the FET and a second terminal serving as a RF terminal to receive or output a RF signal, an intermediate frequency (IF) matching circuit having a first terminal connected to the drain side of the FET and a second terminal serving as an IF terminal to receive or output an IF signal, and a series resonance circuit providing a path from the drain of the FET to ground for the local oscillation signal.
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公开(公告)号：US20220115986A1
公开(公告)日：2022-04-14
申请号：US17496984
申请日：2021-10-08
Inventor： Dong Hwan Shin , Dong Pil Chang , Byoung Hak Kim , Seong Mo Moon , In Bok Yom , Jun Han Lim , Jin Cheol Jeong , In Kwon Ju
Abstract: Provided is a FET resistive frequency mixing device having improved RF-LO and IF-LO isolations. The frequency mixing device includes: a field effect transistor (FET), a local oscillation matching circuit connected to a gate of the FET to transfer a local oscillation signal to the gate of the FET, a gate biasing circuit connected to the gate of the FET, a radio frequency (RF) matching circuit having a first terminal connected to a drain side of the FET and a second terminal serving as a RF terminal to receive or output a RF signal, an intermediate frequency (IF) matching circuit having a first terminal connected to the drain side of the FET and a second terminal serving as an IF terminal to receive or output an IF signal, and a series resonance circuit providing a path from the drain of the FET to ground for the local oscillation signal.
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公开(公告)号：US12206383B2
公开(公告)日：2025-01-21
申请号：US17945212
申请日：2022-09-15
Inventor： Jun Han Lim , Seong Mo Moon , Jin Sek Park , Dong Pil Chang
Abstract: Disclosed is a dual-band phase shifter in which series/parallel resonance circuits are applied to a polyphase filter to implement a phase shifter, which is a core block of a multi-channel RFIC for implementing a phased array antenna system. The dual-band phase shifter may be configured by converting a capacitor (C) of an LC circuit or a CL circuit in the RFIC into a series resonance circuit and converting an inductor (L) thereof into a parallel resonance circuit, so that a signal generator operating in one frequency band can operate in a dual-band.
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公开(公告)号：US20140184438A1
公开(公告)日：2014-07-03
申请号：US14139221
申请日：2013-12-23
Inventor： Dong Pil Chang , In Bok Yom , Youn Sub Noh , Jin Cheol Jeong , Hong Gu Ji , Man Seok Uhm
IPC: G01S13/02
CPC classification number: G01S7/032 , G01S2007/027
Abstract: A transmit/receive module for radar may include a radio frequency (RF) circuit unit including an RF substrate and an RF part; and a direct current (DC) power supply circuit unit including a printed circuit board (PCB) and a DC power supply circuit part. The RF circuit unit and the DC power supply circuit unit may be disposed so that a rear surface of the RF circuit unit faces a rear surface of the DC power supply circuit unit, and may be assembled to have a separate space using at least one separation wall.
Abstract translation: 用于雷达的发射/接收模块可以包括包括RF基板和RF部分的射频（RF）电路单元; 以及包括印刷电路板（PCB）和直流电源电路部分的直流（DC）电源电路单元。 RF电路单元和DC电源电路单元可以被布置成使得RF电路单元的后表面面向DC电源电路单元的后表面，并且可以组装成具有使用至少一个分离的单独空间 壁。
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