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유전체 층 내에 공기 층을 갖는 마이크로스트립 패치 안테나의 해석
박동희(DongHee Park),안병철(BierngChearl Ahn) 한국정보기술학회 2004 Proceedings of KIIT Conference Vol.2004 No.-
본 논문은 등가유전율의 개념을 유전체 층 내에 공기 층을 갖는 마이크로스트립 패치 안테나에 적용하여 임피던스 해석이 가능함을 제시한다. 이 이론을 입증하기 위해 패치 안테나는 3.0[㎓]에 서 사용할 수 있도록 하였고, 기 판 내부는 공기 층을 갖도록 설계하였다. 공기 층을 포함하는 두 영역은 비균질 매질로서 동축선 여기시 3-포트 전송선 해석방법을 적용하였다. 본 논문은 공기 층의 두께 및 공기 층의 면적이 변화함에 따라 패치 안테나의 특성 임피던스, 입력 임피던스 및 중심주파수를 각각 해석하였다. 해석 결과는 수치해석프로그램의 결과와 비교하여 본 논문의 결과가 합당함을 입증하였다. 결과적으로 등가유전율의 개념으로 공기 층을 포함한 다층의 유전체로 이루어진 평판 안테나의 해석 및 설계가 가능함을 입증하였다. This paper present possibility to analyze a impedance of microstrip patch antennas(MPAs) with air layer in the dielectric layer applying a general idea of equivalent dielectric constants. To prove this theory, a patch antennas are made to use in 3.0[㎓] and is designed to have air layer inside the substrate. The two regions to include air layer applied coaxial feed 3-port transmission line analysis method as non-homogeneous medium. 'This paper analyzes the characteristic impedance, the input impedance and the central frequency of patch antennas according to variety of the thickness of air layer and areas. The results of analysis prove that the result of this paper is in good agreement comparing with the numerical program. Eventually, we suggest the possibility on analysis and design a plane antennas structured multi-dielectric layers included air layer as a general idea of the equivalent dielectric constant.
무선단말기를 위한 다중대역 마이크로스트립 패치 안테나에 관한 연구
박동희(Park DongHee),곽윤식(Kwak YoonSik),안병철(Ahn BierngChearl) 한국정보기술학회 2006 한국정보기술학회논문지 Vol.4 No.5
In this paper, the design methods of the multi-band terminal antennas by a single microstrip patch antenna are suggested. Also, to change the multi-band central frequencies, the feeding patch have the character type slots. The multi-band microstrip patch antennas have been designed with the triple-band central frequencies. Therefore, the proposed antennas in this paper can be applied for various kinds of a mobile communication applications, including a MIMO(Multiple-Input Multiple-Output) systems.
박동희(Park DongHee),곽윤식(Kwak YoonSik),안병철(Ahn BierngChearl) 한국정보기술학회 2007 한국정보기술학회논문지 Vol.5 No.3
This paper has suggested a design and an analysis methods on the integrated single chip antennas with multi-band frequency that it will be able to operate from 4GHz to 13GHz. The designed chip antenna has the characteristic of a quintuple band as made symmetrical figure of the two trapezoidal shape in the patch with coaxial feeding. We demonstrate an accurate results of the return loss RL and the size of the patch antennas comparing the transmission line method and M. Bartek’s analytical method[1] at central frequency 6[GHz]. In this paper, the selected wafer types to design a chip antennas are the Corning Pyrex glass and HRS(High Resistivity Silicon) i to design a chip antennas.
마이크로시스템의 집적화를 위한 광대역 특성을 갖는 온-칩 안테나 설계 및 해석
박동희(Park DongHee),곽윤식(Kwak YoonSik),안병철(Ahn BierngChearl) 한국정보기술학회 2008 한국정보기술학회논문지 Vol.6 No.6
This paper has suggested novel on-chip antennas with sextet-band frequency that it will be able to operate in UWB (Ultra Wide Band) systems. The on-chip antennas have designed with slots of the four pairs of sector shape and U-slot near by the feeding point. We chose HRS (High Resistivity Silicon) Si wafer in order to integrate a wireless micro-system. Also we insert SiO2 layer between patch and substrate to increase effects of antennas. We have demonstrated that the simulation results are accurate on the return loss RL and the size of the patch antennas comparing the transmission line method and P. M. Mendes’s analytical method at central frequency 5.7[GHz]. Therefore, we suggest that it is possible to design of the sextet-band on-chip antenna for UWB applications.
대칭적 수직 방사패턴을 가지는 ZigBee용 인쇄형 미앤더 모노폴 안테나 설계
민동현(DongHyeon Min),오던토이아 바산체렌(Baasantseren Odontuya),방재훈(JaeHoon Bang),안병철(BierngChearl Ahn) 한국정보기술학회 2011 한국정보기술학회논문지 Vol.9 No.5
This paper presents a printed meander monopole antenna with a symmetric vertical radiation pattern for ZigBee applications. Short-range wireless communications often require antennas with radiation patterns omnidirectional in the horizontal plane and symmetric in the vertical direction. In general, printed monopoles have an asymmetric vertical pattern due to the imbalance between the radiating element and the ground plane. In this paper, we presented a printed monopole antenna with an omnidirectional horizontal pattern and a symmetric vertical pattern for 2.4㎓ ZigBee communication. A meander monopole radiator is employed for antenna size reduction. An omnidirectional horizontal pattern is obtained by placing the monopole at the center of the ground plane, while a symmetric vertical pattern is realized by adjusting the ground plane size. Measurements show that the proposed antenna has favorable characteristics such as a 2.98㏈i gain, a 560㎒ bandwidth, an omnidirectional horizontal pattern, and a symmetric vertical pattern with a 82.5° beamwidth.