• Title, Summary, Keyword: 평판안테나

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A Study on the Multiple Resonance Characteristics of Crossed Planar Monopole Antenna by L-Shaped Slit (십자형 평판 모노폴 안테나의 L자형 슬릿에 의한 다중 공진 특성 연구)

  • Shim, Jae-Ruen
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.13 no.1
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    • pp.1-5
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    • 2009
  • In this paper, a novel wideband crossed planar monopole antenna with the multiple resonance characteristics is proposed. The proposed monopole antenna can be designed by a wideband crossed planar monopole antenna with L-shaped slits. In order to generate multiple resonance characteristics on the proposed monopole antenna, the length of L-shaped slit and the number of L-shaped slits are determined at an interesting frequency. The proposed antenna having an omnidirectional radiation pattern and a high gain over the multiple resonance frequency bands, respectively, is suitable for a mobile antenna.

The implementation of mono-pulse tracking antenna using flat-antenna. (평판안테나를 이용한 모노펄스 추적 안테나 구현)

  • Choi, Jun-su;Park, Choon-shik;Hur, Chang-wu
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.275-278
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    • 2012
  • This paper has been studied about implementation of mono-pulse tracking antenna using flat-antenna. Mono-pulse tracking antenna consists of four flat-antenna, comparators, tracking receiver, controller. We analyzed magnitude and phase of radio wave that according to antenna array. In addition, We analyzed output signal of tracking receiver so that we could present the tracking range. Tracking receiver was designed in one path instead of two path of azimuth and elevation in order to minimize the difference occurred in two path. We hadResults of -3~+3degrees of tracking range.

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A Study on Improving Impedance Characteristics of Planar Monopole Antenna with Vertical Ground Plane (수직 접지면을 갖는 평판형 모노폴 안테나의 임피던스 특성 개선에 관한 연구)

  • Jung, Jin-Woo;Lee, Hyeon-Jin;Lim, Yeong-Seog
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.48 no.5
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    • pp.54-63
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    • 2011
  • This paper presents the improving impedance charactersitics of a planar monopole antenna with a vertical ground plane. For improving impedance characteristics, we used the effect of a vertical ground plane. To analyze the effect of vertical ground plane, we proposed the dipole antenna mode. the impedance characteristics of planar monopole antenna are improved by correlation between monopole antenna and vertical ground plane, based on each operating mode. Our analysis indicates can improve the impedance characteristics of varying planae monopole antennas.

Double Resonance Characteristics of Crossed Planar Monopole Antenna by L-Shaped Slit (L형 슬릿에 의한 십자형 평판 모노폴 안테나의 이중공진 특성)

  • Shim, Jae-Ruen
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.8 no.3
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    • pp.508-512
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    • 2007
  • In this paper, a novel wideband crossed planar monopole antenna with the double resonance characteristics is proposed. The proposed monopole antenna consists of a wideband crossed planar monopole antenna and L-shaped slits. In order to generate double resonance characteristics on the proposed monopole antenna, the length of L-shaped slit on the antenna surface is obtained from the quarter-wavelength of the second resonance frequency The double resonance characteristics of the proposed antenna can be easily designed by the control of length of L shaped slit at an interesting frequency. The proposed antenna having an omnidirectional radiation pattern and a high gain over the double resonance frequency bands, respectively, is suitable for mobile multiband antenna.

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The Study on Implementation of the low-cost, high-efficiency Flat Panel Tracking Antenna System (저비용 고효율 추적 평판 안테나 시스템 구현에 대한 연구)

  • Choi, KJun-Su;Hur, Chang-Wu
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.9
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    • pp.2139-2144
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    • 2013
  • This paper has analyzed the possibility about implementation of the low-cost, high-efficiency tracking antenna using flat panel antenna. Tracking antenna is consisted of four flat-antenna, comparators, tracking receiver, controller. We analyzed input signal of antenna array about the magnitude and phase of radio wave. In addition, We suggested the available tracking range through the analysis of output signal. We have minimized the error rate that happened on two path through design two path of the azimuth and elevation. Analysis results has a tracking range of ${\pm}3$ degrees, it is possible to implement.

Ka-band Microstrip Antenna Fed Circular Polarized Horn Array Antenna Design (평판형 안테나 급전구조를 이용한 원형편파용 도파관 배열안테나 설계)

  • Jung, Young-Bae
    • Journal of IKEEE
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    • v.17 no.2
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    • pp.140-144
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    • 2013
  • This paper presents the novel design of circular polarized Ka-band horn array antenna. The element antenna of the arrya is composed of two parts, microstrip patch and square horn, and the microstrip patch is fed by corner truncated microstrip patch for circular polarization. The patch antenna has the role of a feeder and polarizer of the horn, thus the whole size of the horn antennae can be considerably reduced. The $1{\times}8$ horn array was designed and fabricated by the spacing of $0.9{\lambda}_0$ among the element horn. The element horn has typical gain of 8dBi and axial-ratio bandwidth of 4.9% at 3dB, and the minimum gain and axial-ratio bandwithd of the array is 14dBi and 8.2%.

Structural Modification of Crossed Planar Monopole Antenna for ISM 2.45GHz/5.8GHz Dual Band Characteristics (ISM 2.45GHz/5.8GHz 이중대역 특성을 위한 십자형 평판 모노폴 안테나의 구조 변경)

  • Shim, Jaeruen;Chun, Joong-Chang
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.19 no.1
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    • pp.13-18
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    • 2015
  • This study presents the structure design of antenna to have the dual band characteristics in a desired frequency band through the structural modification of an antenna structure. For the experiment, a wideband crossed planar monopole antenna was used. The target frequency band was set to ISM 2.45GHz/5.8GHz. To give the properties, an additional antenna element was added to the crossed planar monopole antenna, which is a main body of the antenna. And then structural adjustment parameter was set to change the length(shape) of the antenna. Various simulations were conducted to find the dual band characteristics in the desired frequency band. The simulations brought forth the antenna bandwidth above the normal values for ISM 2.45GHz/5.8GHz. The structural adjustment parameter introduced in this study for structural modification of an antenna can be useful in developing an antenna featured with dual band(multiband) characteristics.

Conformal Horn Antenna for Circular Polarization using Planar-type Radiator (평판형 방사소자를 이용한 원형편파용 혼 안테나 설계)

  • Jung, Young-Bae
    • Journal of IKEEE
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    • v.16 no.3
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    • pp.173-176
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    • 2012
  • This paper introduces a novel horn antenna for circular polarization using a planar-type radiator. This antenna can be divided to two parts, microstrip antenna and square horn. The microstrip antenna has the role of feeder and polarizer of the horn antenna, and it is designed to stacked type having metal spacer for high gain, high isolation and wideband characteristic. Using the proposed antenna structure, the horn antenna needs not additional structure such as feeder and polarizer, and the size of it can be considerably reduced. The horn antenna has typical gain of 8dBi and 3-dB axial-ratio bandwidth around 4.9%.This antenna can widely used for various antenna system for mobile and satellite communication using circular polarization expecially in high frequency band.

Analysis of Radiation Characteristics of Plate-Inserted IBBD Array Antennas (평판이 삽입된 IBBD 배열 안테나의 복사 특성 분석)

  • Choi, Hwan-Gi;Choi, Hak-Keun;Kim, Do-Kyung;Jung, Young-Bae;Jeon, Soon-Ik
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.19 no.11
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    • pp.1213-1222
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    • 2008
  • In this paper, the isolation of the IBBD array antenna is analyzed as functions of the element spacing and the height of the flat plate inserted between array elements for the intelligent antenna system. It is found that the isolation between array elements improves with increasing the array spacing. The array configuration with the plate between the elements is enhanced by about 13 dB more In the isolation than the one without the plate. The plate-inserted $4{\times}4$ elements IBBD array antennas are fabricated and the radiation characteristics are measured and analyzed for the various heights of the plate. It is found that the gain decreases slightly with increasing the height of plate but the shape of radiation pattern does not show a remarkable change.

Design and fabrication of a Small Microstrip Antenna consisting of Capacitors (용량을 구성한 소형 마이크로스트립 안테나 설계 및 제작)

  • 박성일;고영혁
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.223-226
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    • 2002
  • 본 논문에서는 기존의 MSA의 구조를 변형하여 S자형 변형된 MSA를 제안했다. 제안된 안테나는 전기력선 형성에 제한 반지 않도록 방사패치와 접지면을 접어 올린 우측 평행 평판사이 용량을 장하하고, 방사패치를 접어내린 좌측 평행 평판과 접지면 사이 용량을 장하한 구조로 설계 제작하였다. 설계된 안테나는 2.24GHz의 중심 주파수에서 5.7%의 대역폭을 갖고 임의의 급전점의 위치변화에 따라 대역폭과 공진 주파수의 변화를 비교하고, 용량 장하의 크기에 따라 대역폭과 통진 주파수론 비교하였다. 또한 제작된 안테나의 방사 패턴 특성은 E면과 H면의 수직·수평 편파의 특성을 측정하여 비교하였다.

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