公开(公告)号：US09614552B2

公开(公告)日：2017-04-04

申请号：US14956587

申请日：2015-12-02

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Ki Jin Kim ,  Kwang Ho Ahan ,  Sang Hoon Park

IPC: H03C3/00 ,  H04L27/20 ,  H04B1/04 ,  H04L7/033 ,  H04L27/00

CPC classification number: H04B1/04 ,  H04L7/0331 ,  H04L27/2014 ,  H04L27/2039 ,  H04L2027/0016 ,  H04L2027/0018 ,  H04L2027/0055 ,  H04L2027/0091

Abstract: Provided is a lower power and high efficiency millimeter-wave modulation apparatus capable of modulating digital data into transmitting signals in a millimeter frequency band, the millimeter-wave modulation apparatus including; a modulation part, which carries out a modulation of a constant envelope attribute, and to which a first local oscillation signal is fixed according to a rate of input data; a phase shifter adopted to shift a phase of an output of the modulation part; a power amplifier adopted to amplify an output of the phase shifter; and an antenna connected to an output of the power amplifier.

公开(公告)号：US10418944B2

公开(公告)日：2019-09-17

申请号：US15385633

申请日：2016-12-20

Applicant: Korea Electronics Technology Institute

Inventor： Ki Jin Kim ,  Kwang Ho Ahan

IPC: H03F1/02 ,  H03F3/19 ,  H03F3/21 ,  G01S7/35 ,  G01S7/292 ,  G01S7/285 ,  G01S13/34 ,  G01S13/02

Abstract: A high-efficiency high-integrated receiver is provided. The radar receiver according to an embodiment of the present disclosure includes a receiver configured to receive a radar signal, a processor configured to attenuate a magnitude of a low frequency band of the received signal of the receiver, a filter configured to perform a low pass filtering on an output signal of the processor, and an ADC configured to A/D convert the output signal of the filter. Accordingly, it is possible to demodulate all the signals being reflected from targets in various distances when even using a low resolution ADC, thereby reducing the manufacturing cost and power consumption.

公开(公告)号：US20180248528A1

公开(公告)日：2018-08-30

申请号：US15894675

申请日：2018-02-12

Applicant: Korea Electronics Technology Institute

Inventor： Ki Jin Kim ,  Kwang Ho Ahan

IPC: H03F3/60 ,  H03F1/56 ,  H03F3/21 ,  H03F3/193 ,  H01P5/16

CPC classification number: H03F3/604 ,  H01P5/16 ,  H03F1/565 ,  H03F3/193 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/255 ,  H03F2200/451 ,  H04W84/042 ,  H04W84/12

Abstract: A power amplifier using an equivalent transformer is provided. The power amplifier includes amplifiers and T lines having first terminals connected to the amplifiers and second terminals connected to output sides. Accordingly, powers are combined using the equivalent transformer in the power amplifier, such that an insertion loss can be reduced and thus degradation of output power efficiency can be prevented.

公开(公告)号：US10236846B2

公开(公告)日：2019-03-19

申请号：US15894675

申请日：2018-02-12

Applicant: Korea Electronics Technology Institute

Inventor： Ki Jin Kim ,  Kwang Ho Ahan

IPC: H01P5/16 ,  H03F1/56 ,  H03F3/21 ,  H03F3/24 ,  H03F3/60 ,  H03F3/193 ,  H04W84/04 ,  H04W84/12

Abstract: A power amplifier using an equivalent transformer is provided. The power amplifier includes amplifiers and T lines having first terminals connected to the amplifiers and second terminals connected to output sides. Accordingly, powers are combined using the equivalent transformer in the power amplifier, such that an insertion loss can be reduced and thus degradation of output power efficiency can be prevented.

公开(公告)号：US09966904B2

公开(公告)日：2018-05-08

申请号：US15391500

申请日：2016-12-27

Applicant: Korea Electronics Technology Institute

Inventor： Ki Jin Kim ,  Kwang Ho Ahan

IPC: H03F1/22 ,  H03F3/193 ,  H03F1/34

CPC classification number: H03F1/223 ,  H03F1/347 ,  H03F3/193 ,  H03F2200/405 ,  H03F2200/451 ,  H03F2200/537

Abstract: An RF amplifier to increase a gain using a transformer is provided. The amplifier includes: a first transistor configured to generate a current by amplifying and converting an input voltage; a second transistor configured to amplify the generated current; and a first transformer configured to feed an emitter current of the second transistor back to a gate. Accordingly, Gm of the transistor is boosted using the transformer, such that a high gain can be obtained with a low current. Therefore, a problem of a gain reduction caused by a parasitic capacitor at a high frequency can be solved.

公开(公告)号：US20170214366A1

公开(公告)日：2017-07-27

申请号：US15385633

申请日：2016-12-20

Applicant: Korea Electronics Technology Institute

Inventor： Ki Jin Kim ,  Kwang Ho Ahan

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/19

CPC classification number: H03F1/0205 ,  G01S7/285 ,  G01S7/292 ,  G01S7/352 ,  G01S13/34 ,  G01S2013/0254 ,  H03F3/19 ,  H03F3/195 ,  H03F3/21 ,  H03F3/45197 ,  H03F2200/06 ,  H03F2200/09 ,  H03F2200/129 ,  H03F2200/165 ,  H03F2200/294 ,  H03F2200/408 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/45356 ,  H03F2203/45494 ,  H03F2203/45498 ,  H03F2203/45631 ,  H03F2203/45686 ,  H03F2203/45694 ,  H03F2203/45701

Abstract: A high-efficiency high-integrated receiver is provided. The radar receiver according to an embodiment of the present disclosure includes a receiver configured to receive a radar signal, a processor configured to attenuate a magnitude of a low frequency band of the received signal of the receiver, a filter configured to perform a low pass filtering on an output signal of the processor, and an ADC configured to A/D convert the output signal of the filter. Accordingly, it is possible to demodulate all the signals being reflected from targets in various distances when even using a low resolution ADC, thereby reducing the manufacturing cost and power consumption.