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Taeho Son,Moonhee Lee,Choolhyeong Rhee,Namsoo Kim 한국전자파학회JEES 2020 Journal of Electromagnetic Engineering and Science Vol.20 No.2
We revealed the existence of high frequency (HF) electricity flowing through the meridians known to oriental medicine by observing these signals at various acupoints on the human body. This was clearly and scientifically demonstrated by recording the frequency spectrum at these acupoints using a spectrum analyzer. The analysis of the measured spectrum found in 5 particular acupoints of each of the 12 meridians showed that a flow exists in these acupoints that could be measured with a spectrum frequency between 1 MHz and 80 MHz and an intensity of –70 to –60 dBm. Since the presence of these spectrums can be equated with the presence of electricity, we can emphatically conclude that high frequency electricity exists in humans and flows through the acupoints used in oriental medicine. The same characteristic frequency spectrums were found at all the acupoints along the same meridian and were shown to have the same type of HF current flow. In this way, we were able to confirm the existence of meridian flow in a scientific manner. In addition, it was found that as the distance from the organ increased, the intensities of the spectrum measured on that meridian decreased, which is exactly the behavior electrical transmission line theory would predict.
휴대폰 전자파의 혈액세포 영향을 위한 전자파 혈액 침투율 측정
손태호(Taeho Son) 한국정보기술학회 2004 Proceedings of KIIT Conference Vol.2004 No.-
인체에 대한 휴대폰 전자파 피폭 연구를 위한 기초 장비로서, 배양세포에 전자파를 조사(exposure) 하는 장치를 설계에 필요한 연구이다. 전자파에 대한 인체영향 관련 연구는 인체부위에 직접 조사하는 방법, 인체대신 다른 생체에 조사하는 방법 및 배양세포에 조사하여 그 변화를 관찰하는 연구 로 구분된다. 본 연구에서는 800㎒ 대 휴대폰 주파수를 발진시켜, 전자파 균일 발생장치인 TEM셀에 인가한다. 배양세포는 TEM셀 내 petri-dish에서 배양되고, 온도, 습도조절 및 CO2가 공급되는 Incubator에 위치된다. 휴대폰 전자파 생체흡수율 SAR 1.6, 2, 3, 4 W/㎏에 해당하는 TEM 셀 입력전력을 Network Analyzer실험으로 구하여 전력증폭기를 통해 공급하였다. 배양세포의 종류로는 혈액 및 skin 세포를 대상으로 하여 설계하였다. This study is that electromagnetic energy can be exposed to culture cell in incubator by apparatus which is basic experimental researching for the EMF effect study by mobile phone. The EMF study for human effect can be investigated exposure directly to human body and exposure to culture cell. A new EM exposure apparatus, in this paper, generates 800㎒ CDMA phone frequency band, and supply it to TEM cell Culture cell in petri-dish is in TEM cell, and TEM cell is located in temperature and humidity controlled C02 incubator. TEM cell input power levels selected by SAR 1.6, 2, 3, 4, W/㎏ push button are obtained by network analyzer experiment results. Culture cells are blood cell and skin cell.
베르그송의 직관 개념과 『주역』 곤괘 육이(六二) 해석
손태호 ( Son Taeho ) 한국철학사상연구회 2021 시대와 철학 Vol.32 No.4
Bergson’s concept of intuition is not easy to understand. He said the real truth in a world of creative evolution can be seen by intuition, not by intelligence. Intelligence and intuition can be viewed as the two main sides of the human mind with opposite tendencies. Intelligence was originally created in the process of building efficient methods of production and construction. So intelligence has a tendency to obsess over recreating the same endlessly. The world of living is bound to be the main tendency to create new things. So intelligence can only be said to be a human ability that has fundamental limitations in applying it to life. In other words, intelligence cannot see life directly. So intuition is a valuable way of perception in that there is no other alternative to life recognition. But intuition is the direction of thought that seems difficult and vague. So human society tends to avoid creating intuitively driven cultures, or introducing new cultures. In view of human civilizations, the period of creation was truly ephemeral, and the period of imitation and complacency occupied most of the history of those civilizations. It is considered very important to know whether these Bergson’s words are universally applicable. So I applied the distinction between Bergson’s intuition and intelligence to Chinese philosophy. I used the Book of Changes’s main character “K'un’s (The Receptive’s) Six in the second place means: Straight, square, great. Without purpose, Yet nothing remains unfurthered(坤卦, 六二, 直方大, 不習无不利)” to manipulate the contents of complex Chinese philosophy as simple as possible. In other words, the orientation of this paper was developed in a way that observes the changes in interpretation of this content, with the changing times. As a result, Bergson’s notion of intuition and intelligence was also found to be quite useful in distinguishing history of Chinese philosophy.
90도 하이브리드 칩 회로를 이용한 GPS용 패치안테나의 광대역화
손태호(Taeho Son) 한국전자파학회 2015 한국전자파학회논문지 Vol.26 No.8
본 논문에서는 GPS용 마이크로스트립 패치안테나의 대역특성을 넓이기 위하여 90도 하이브리드를 적용한 2포트 급전을 제안한다. 패치는 정사각형 패치이며, 급전은 프로브 급전한다. 90도 하이브리드 칩 소자 회로를 설계하고, 90도 위상차가 나는 출력 포트를 패치안테나에 각각 공급한다. 설계된 패치와 90도 하이브리드 회로를 FR4 기판에 구현하고 이들을 결합한다. 구현된 안테나에 대한 정재파비 측정결과, 2:1 기준으로 29 %BW(1,230~1,700 MHz)을 얻었으며, 축비는 3 dB 기준 15.87 %BW(1,400~1,650 MHz)을 얻었다. 무반사실에서 측정한 안테나의 최대이득은 GPS 중심주파수에서 2.75 dBi를 얻음으로써 실용화에 대한 가능성을 보였다. In this paper, two ports feeding a microstrip patch antenna using a quadrature hybrid circuit was proposed to enhance the bandwidth for the global positioning system(GPS). The square patch was designed, and the probe feeding was applied. The quadrature hybrid chip circuit for two-port feeding was designed, and output ports that have a 90-degree phase difference feed to the patch antenna. The designed patch and quadrature hybrid circuit were implemented on an FR4 board, and were combined. The measurement of the bandwidth within a voltage standing wave ratio(VSWR) of 2: 1 and axial ratio(AR) in 3dB were 29 %BW(1,230~1,700 MHz) and 15.87 %BW(1,400~1,650 MHz), respectively. The peak gain at the GPS center frequency was measured at 2.75 dBi in an anechoic chamber.
이득 증가를 위한 휴대 단말기용 역 파이 급전 PIFA
손태호(Taeho Son),이재호(Jaeho Lee) 한국전자파학회 2007 한국전자파학회논문지 Vol.18 No.12
이동 통신 단말기 내장형 안테나의 급전 부분에 역 파이 형태의 급전부를 채택함으로써 이득이 증가함을 보인다. PIFA, IFA 등과 같은 안테나 급전 부분을 수정하여 안테나와 같은 방향으로 전류가 흐를 수 있도록 하면 T 정합 이론을 적용할 수 있다. 따라서 T 정합 이론을 근거로 하는 역 파이 급전은 안테나의 방사 저항을 높이고 더불어 이득도 증가시킬 수 있다. 역 파이 급전 이론의 타당성을 밝히기 위하여 기존의 GSM/ DCS 2중 대역 PIFA에 적용하여 제반 특성을 측정한다. 측정 결과, 공진 주파수의 이동은 없으며, 채널별 평균 이득은 역 파이급전 PIFA가 기존 PIFA에 비해 GSM 대역에서는 0.23~0.84 ㏈, DCS 대역에서는 0.01~1.74 ㏈ 향상됨을 보인다. It is shown that inverted π feeder affects the gain improvement for the internal antenna of mobile phone. Generation of current on the inverted π feeder, by the modification of conventional feeding structure for the PIFA and IFA, can apply T matching theory to the new feeder. Therefore, invertedπ feeder based on the T matching theory makes higher radiation resistance, and also increases the gain. To verify inverted π feeding effect, feeder is applied to GSM/DCS dual band conventional PIFA, and measured return loss and patterns. By measurement, it's shown that this new feeding antenna has 0.23~0.84 ㏈ higher average gain for GSM band and 0.01~1.74 ㏈ higher average gain for DCS band than conventional fed PIFA without resonant frequency change.
3중 대역 휴대폰 단말기용 다중 전류 분포 폴디드 모노폴 안테나
손태호(Taeho Son),이재호(Jaeho Lee) 한국전자파학회 2007 한국전자파학회논문지 Vol.18 No.10
본 논문에서는 폴드형 GSM/DCS/USPCS 서비스용 휴대폰 단말기에 적용되는 3중 대역 폴디드 모노폴 안테나를 설계 제작한다. 안테나는 변형된 미앤더 구조이며, 접힌 형상을 갖도록 설계함으로써 GSM 주파수 대역에서는 길이를 늘리는 역할을 하고, DCS/USPCS 주파수 대역에서는 같은 방향으로 전류가 형성될 수 있도록 한다. 같은 방향의 다중 전류는 방사 저항과 이득을 동시에 높게 해 줌으로써 내장형 안테나로 성능 구현이 어려운 휴대폰에 적용될 수 있다. 설계된 안테나를 프레스 공법으로 제작하여 휴대폰에 적용한 결과 GSM/DCS/USPCS의 3중 대역에서 폴드 닫힘 상태에서 VSWR 3:1, 열림 상태에서 2:1 이내 특성을 만족하고 있으며, 최대 이득은 GSM 밴드에서 -0.02 dBi, DCS 밴드에서 +0.2 dBi, USPCS 밴드에서 +0.78 dBi을 가지고 전방향성 특성의 H면 방사 특성을 보인다. We design and fabricate, in this paper, a triple band folded monopole antenna for the folder type mobile phone handset that can be served GSM/DCS/USPCS mobile phone system. Antenna structure is modified meander shape which is obtained both extension of antenna physical length for GSM band and same directional multi-currents flowing on the antenna conductor surface for DCS/USPCS band. This antenna has as good performances as high radiation resistance and gain increment, and would be applied to mobile phone handset that is not able to be performed by internal antenna. By measurement, fabricated antenna by the press process shows under VSWR 3:1 at closed folder state and 2:1 at opened folder state over whole GSM/DCS/USPCS band, and has maximum gain as -0.02 dBi for GSM, +0.2 dBi for DCS, +0.78 dBi for USPCS band with almost omnidirectional H-plane radiation pattern.
이동 통신 단말기용 외장형 폴디드 모노폴 안테나 및 내장형 인테나
손태호(Taeho Son),정영훈(YoungHoon Joung),전홍표(Hongpyo Chun) 한국정보기술학회 2004 한국정보기술학회논문지 Vol.2 No.1
In this paper, folded monopole antenna and intenna for the Korea pes handset are designed and fabricated. The handset antenna for mobile system should be both small size and good performances. The stubby antenna based on helical structure and the retractable antenna formed a quarter wavelength antenna with a helical are commonly applied in mobile phone handset. We, in this study, design folded type monopole antenna and intenna which have better performances than conventional stubby antenna. For compensation of reducing inductance by the short length, the scheme of folding wire to increase series capacitance is used. Higher gain than helical stubby can get by widened effective areas and length of antenna using folding structure. It is shown that these new type antennas have better gain and radiation patterns than helical stubby from the measurements on 1.75~1.87 ㎓ frequency ranges.