• Title/Summary/Keyword: Wideband Antenna

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Single Feed Compact Wideband Antenna for Wireless Communication Applications

  • Park, Noh-Joon;Kang, Young-Jin
    • Journal of information and communication convergence engineering
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    • v.6 no.2
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    • pp.164-168
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    • 2008
  • Wideband terminal and base station is required to serve not only existing 1st and 2nd generation mobile communication systems but also 3rd generation systems. In this paper, we presents a feasibility study on single feed compact wideband antenna for wireless communication applications including GSM (890-960 MHz), GPS (1575 MHz), DCS (1710-1880 MHz), PCS (1880-1990 MHz), UMTS (1900-2200 MHz), ISM (2400-2480 MHz), IMT2000 and satellite DMB bands. The original antenna was designed for partial discharge detection sensor in high voltage diagnostic system. However, we modified the original prototype to achieve shifted down resonant frequency for wideband wireless communication applications. The experimental result shows good return loss characteristics and radiation patterns except for the total gain at each resonant frequency. The maximum measured gain was 2.45 dBi${\sim}$3.18 dBi at 1710 MHz${\sim}$1880 MHz.

Study of Electromagnetic Characteristics for Air discharge using Ultra - wideband Antenna (광대역 안테나를 이용한 기중방전현상에 대한 전자기적 특성에 관한 연구)

  • Lee K. W.;Yoon S. C.;Kim M. Y.;Baik K. S.
    • Proceedings of the KSR Conference
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    • pp.1489-1491
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    • 2004
  • PD in air is accompanied by light, sound and electromagnetic wave. Light and sound can be prevented from blocking between PD sources and sensor but electromagnetic wave can be transferred to long distance without any interference an captured by antenna. This paper investigated the wideband antenna is appropriate for sensing Partial discharge in air. PD was generated from simulated PD source which consist of needle and flat electrode with small gap. Signals obtained from wideband antenna were diminished in both time and frequence region with the distance between PD source and antenna.

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Planar Slot Wideband Antenna for Multiple Communication Services (다중 통신서비스를 위한 평판 슬롯 광대역 안테나)

  • Park, Dong-Kook;Bataller, Miguel Ferrando
    • Journal of IKEEE
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    • v.24 no.1
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    • pp.90-96
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    • 2020
  • As various communication services have emerged due to the development of mobile communication technology, there is a need for a wideband antenna supporting multiple communication services with one antenna. In this paper, we propose a planar slot wideband antenna that can support all the communication services of 3.1~4.99GHz, the low frequency band of 5G, in addition to the existing communication services such as WiFi, LTE 2300/2500, and WiMAX. Through the simulation, the optimized antenna design parameters were obtained, and the antenna was fabricated to implement an antenna with a frequency bandwidth of 1.96~6.01GHz (S11 <-10dB) and presented the radiation pattern and gain of the antenna. The proposed antenna is a multi-band antenna that can provide all the services of LTE, Wifi, WiMAX, and 5G low frequency bands. It can be used as a repeater antenna in radio shadow area such as buildings, dense areas, and ships.

Coaxial Feed Wideband CP antenna for RFID Applications

  • Park, Kyu-Dae;Kim, Hwan-Yong
    • Journal of information and communication convergence engineering
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    • v.6 no.4
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    • pp.391-395
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    • 2008
  • Wideband terminal and base station is required to serve not only existing 1st and 2nd generation mobile communication systems but also 3rd generation systems. In this paper, we present a feasibility study on coaxial feed compact wideband antenna for UHF RFID reader application. The original antenna was designed for partial discharge detection sensor in high voltage diagnostic system. However, we modified the original prototype to achieve shifted down resonant frequency for wideband wireless communication applications. The experimental result shows good return loss characteristics and radiation patterns except for the total gain at each resonant frequency. The maximum measured gain was 2.45 dBi$\sim$3.18 dBi at 910MHz.

Design and Fabrication of Wideband Antenna Using E-shaped Stacked Patches for IMT-Advanced AccessPoint. (E형 적층패치를 이용한 4세대 이동통신 AccessPoint용 광대역 안테나의 설계 및 제작)

  • Yoon, Hyun-Soo;Choi, Byoung-Ha
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.223-228
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    • 2007
  • In this paper, Wideband antenna using E-shaped stacked patches has been designed and fabricated for 4th generation mobile communication(IMT-Advanced) AccessPoint application. E-shaped patch was miniature and brodband by made the movement route of current long. And inductive of coaxial probe compensates capacitive by slot. Therefore we fabricated to improve the bandwidth of proposed antenna. The E-shaped single patch antenna has an impedance bandwidth of about 13%(510[MHz]), By adding a second patch at the top of the first patch a bandwidth of 56%(2060[MHz]). The final fabricated antenna could have a good return loss(Return loss ${\leq}-10dB$) and a high gain(over 9.6dBi) at the range of 3.23 ${\sim}$ 5.29 [GHz].

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A Printed, Wideband Folded Monopole Antenna Coupling with a Parasitic Inverted-L Element for Bluetooth, WiMAX and UWB Systems (Bluetooth, WiMAX, UWB 시스템용 역 L형 무급전 소자 결합 프린트형 광대역 폴디드 모노폴 안테나)

  • Kim, Ki-Baek;Ryu, Hong-Kyun;Woo, Jong-Myung
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.22 no.11
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    • pp.1101-1110
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    • 2011
  • This paper presents a printed, wideband folded monopole antenna for laptop and tablet computer applications. The proposed antenna is designed to cover bandwidth(2.3~10.6 GHz) of Bluetooth, WiMAX, and UWB system by using the printed folded monopole antenna having asymmetrical line width coupling with a parasitic inverted- L element. Also, wireless LAN band(5.15~5.85 GHz) which interferes with UWB system is rejected by inserting half-wavelength open stub in the folded monopole antenna. -10 dB bandwidth of the fabricated wideband antenna is 2.27~10.6 GHz (4.7:1) and -10 dB band-rejected bandwidth is measured as 700 MHz(5.15~5.85 GHz, 12.72 %). The gain and efficiency of the antenna except for the rejected band are higher than 3.93 dBi and 91.89 % and are measured as -2 dBi and 14.65 % at 5.5 GHz which is band-rejected frequency. The size of the antenna is suitable to install for small space of tablet and laptop computers as 12.75(1 ${\lambda}$/10)${\times}$12(1 ${\lambda}$/11) $mm^2$(${\lambda}$ is free space wavelength at 2.3 GHz). Therefore, we verified that the designed antenna is appropriate for wideband antenna of tablet and laptop PC applications.

Open-Ended Two-Strip Meander-Line Antenna for RFID Tags

  • Son, Hae-Won;Choi, Gil-Young;Pyo, Cheol-Sig
    • ETRI Journal
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    • v.28 no.3
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    • pp.383-385
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    • 2006
  • A new meander-line antenna consisting of two open-ended strips is proposed for a compact and broadband UHF radio frequency identification tag. An equivalent circuit model for the proposed antenna is derived and used to perform a simple and wideband impedance match to an arbitrary complex impedance of a tag chip without any additional matching network. The performance of the proposed antenna is validated by comparing calculated and measured results, which show good agreement.

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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.

Hyperpolar Sierpinski Carpet Monopole Planar Antenna Design (Hyperpolar 변환 Sierpinski Carpet 모노폴 평판 안테나 설계)

  • Lee, Gab-Soo;Lee, Seong-Choon
    • Proceedings of the IEEK Conference
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    • pp.339-340
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    • 2008
  • This paper presents a novel design of the printed hyperpolar-transformed Sierpinski Carpet (HSC) antenna. By hyperpolar transforming the Sierpinski carpet geometry, from isotropic scaling symmetry to equiangular scaling symmetry, we get improved performance rather than that of the general Sierpinski Carpet antenna. The design parameter and performance of the proposed monopole antenna are investigated by simulation. And we showed that proposed HSC geometry gives more freedom for wideband antenna design such as flare angle, (angular)scale factor.

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