• Title, Summary, Keyword: Crossed Planar Monopole Antenna

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Compact and Wideband Fylfot-Shaped Planar Monopole Antenna

  • Shim, Jae-Ruen
    • Journal of information and communication convergence engineering
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    • v.7 no.4
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    • pp.449-452
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    • 2009
  • In this paper, a novel compact and wideband fylfot-shaped planar monopole antenna is proposed. The fylfot-shaped is suggested to reduce the volume of a general crossed planar monopole antenna. The volume of the proposed antenna is about 1/4 of a general crossed planar monopole antenna under the conditions where the wideband characteristics are maintained. This technique is suitable for the design of wideband planar monopole antenna which needed a small volume.

A Study on Dual Band Characteristics for ISM 2.45GHz/5.8GHz Using Two Crossed Planar Monopole Antenna (두 개의 Crossed Planar 모노폴 안테나에 의한 ISM 2.45GHz/5.8GHz 이중대역 특성 연구)

  • Shim, Jaeruen;Chun, Joong-Chang;Lee, Kwang-Seok
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.739-741
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    • 2014
  • We suggested the new compact dual band monopole antenna using two crossed planar monopole antenna. The proposed antenna will be used for the ISM dual band 2.45GHz/5.8GHz. It is necessary to verify its performance through the follow-up development of the proposed antenna for the high-speed wireless actual communications.

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A Novel Monopole Antenna for ISM 2.45GHz/5.8GHz Dual Band Characteristics by a Linear Monopole Antenna Combined with a Crossed Planar Monopole Antenna (선형 모노폴 안테나와 십자형 모노폴 안테나의 결합에 의한 ISM 2.45GHz/5.8GHz 이중대역 특성을 가지는 안테나 설계)

  • Shim, Jae-Ruen
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.8 no.6
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    • pp.515-519
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    • 2015
  • In this paper, we suggested the novel monopole antenna for dual band characteristics by a linear monopole antenna combined with crossed planar monopole antenna. The target frequency is ISM(Industrial Scientific Medical) 2.45GHz/5.8GHz. The distinctive features of the proposed antenna in this paper is based on the slit in the surface of a crossed planar monopole for the dual band characteristics and the omnidirectional radiation patterns. The compact size of the proposed antenna is $36mm{\times}5.4mm{\times}5.4mm$. According to the simulation results, the bandwidth, the reflection coefficients below -10dB, of 2.45GHz and 5.8GHz are 150MHz and 1.43GHz, respectively. Consequently the proposed antenna structures is apply to the antenna for dual band characteristics.

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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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.

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.

Small-sized Planar Spiral Monopole Antennas by Using Parasitic Elements (기생소자에 의한 소형 평면 맴돌이형 모노폴 안테나)

  • Lee Hyun-Kyu;Lee Taek-Kyung;Jang Won-Ho;Kang Yeon-Duk
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.16 no.6
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    • pp.563-570
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    • 2005
  • In this paper, a small-sized planar square-spiral monopole antenna is proposed by using parasitic elements. The Parasitic element is composed of a crossed strip and additional right-angle folded(L-type) stirps. And these parasitic elements are printed on a substrate which is the opposite side of a radiation element . When the parasitic elements are used, the size of the square-spiral monopole antenna is reduced by $32\%$ for the same operating frequency compared to the antenna without parasitic elements. The radiation pattern of the proposed antenna is nearly omni-directional in azimuth. The designed antenna can be used in the application of channel 12 digital mulimedia broadcasting(DMB) handset.