• Title/Summary/Keyword: stacked patch

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Broadband Stacked Patch Antenna with Low VSWR and Low Cross-Polarization

  • Wang, Zhongbao;Fang, Shaojun;Fu, Shiqiang
    • ETRI Journal
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    • v.32 no.4
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    • pp.618-621
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    • 2010
  • A low cross-polarization broadband stacked patch antenna is proposed. By means of the stacked patch configuration and probe-fed strip feed technique, the VSWR 1.2:1 bandwidth of the patch antenna is enhanced to 22% from 804 MHz to 1,002 MHz, which outperforms the other available patch antennas (<10%). Furthermore, the antenna has a cross-polarization level of less than -20 dB and a gain level of about 9 dBi across the operating bandwidth. Simulation results are compared with the measurements, and a good agreement is observed.

Input Impedance of the Stcked Microstrip Patch Antenna Using the the cavity Model (캐버티 마들을 이용한 적층 마이크로스트립 안테나의 입력 임피던스)

  • 임기남;이경우이상설
    • Proceedings of the IEEK Conference
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    • 1998.10a
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    • pp.339-342
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    • 1998
  • The stacked microstrip patch antenna is modeled by a simple cavity model. Using this model, the input impedance of the stacked microstrip patch antenna fed by a coaxial probe is expressed as a function of antenna paprameters and frequency. We calculate the input impedance of the stacked microstrip patch antenna for the variation of frequency.

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Planar Microstrip Patch Antenna for 5G Wireless Applications

  • Kim, Jang-Wook;Jeon, Joo-Seong
    • Journal of the Korea Society of Computer and Information
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    • v.27 no.1
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    • pp.33-41
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    • 2022
  • This paper describes a planar microstrip patch antenna designed on dielectric substrate. Two types of planar microstrip patch antennas are studied for the 5G wireless applications, one type is conventional microstrip structure, the other type is stacked microstrip structure fed by coaxial probe. Using electromagnetically coupling method, stacked microstrip patch antenna employing a multi-layer substrate structure was designed. The results indicate that the proposed stacked microstrip patch antenna performs well at 5G wireless service bandwith a broadband from 3.42GHz to 3.70GHz. The impedance bandwidth(VSWR≤2) is 360MHz(10.28%) from 3.42GHz to 3.78GHz. In this paper, through the designing of a stacked microstrip patch antenna, we have presented the availability for 5G wireless repeater system.

Stacked Square-Ring Microstrip Slot Antenna for Broadband Characteristics (광대역 특성을 위한 적층형 정사각형 링 마이크로스트립 슬롯 안테나)

  • 이선기;최준호;김영식
    • Proceedings of the Korea Electromagnetic Engineering Society Conference
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    • 2000.11a
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    • pp.319-323
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    • 2000
  • A method for miniaturization of microstrip patch antenna without degrading its radiation characteristics is investigated. The ring geometry introduces additional parameters to the antenna that can be used to control its resonance frequency and bandwidth. For a single square ring increasing the size of patch decreases the resonance frequency and bandwidth. To match the antenna to a transmission line and also enhance its bandwidth. the square ring patch is stacked by a square ring patch. The computed results are compared with experiment and good agreement is obtained.

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Design of Dual-fed Broadband Stacked Microstrip Patch Antenna (이중급전 광대역 적층 마이크로스트립 패치 안테나의 설계)

  • Kim, GunKyun;Rhee, Seung-Yeop;Yeo, Junho;Lee, Jong-Ig;Kim, On
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2016.10a
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    • pp.74-75
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    • 2016
  • Various types of microstrip antennas can be used for many applications in wireless communication systems. In this paper, we studied a design method for a broadband dual-fed stacked microstrip patch antenna. The impedance bandwidth is improved by adjusting the sizes of main radiating patch and parasitic patch, the distance between the patches, the length of inset feed line, etc. The antenna is designed by simulation for an operation in the frequency range of 2.3-2.7 GHz, and the antenna characteristics such as return loss, gain, radiation patterns are examined.

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Design and Implementation of a Stacked Microstrip Antenna with Broad Bandwidth for ISM Band (ISM 대역에서의 적층 구조를 이용한 광대역 마이크로스트립 안테나 설계 및 제작)

  • Kim, Min-Joon;Lee, Jong-Woo
    • Proceedings of the Korea Electromagnetic Engineering Society Conference
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    • 2003.11a
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    • pp.437-441
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    • 2003
  • The major drawback of the classical microstrip patch antennas Is their narrow band characteristic from 1% to 5%. In this paper, to improve this drawback, we designed the antenna with stacked structure having one drive patch connected with feed line and four identical radiation patches. Resonance is achieved by adjust ing coupling area between one drive patch and four identical radiation patches and changing the size of drive patch or radial ion patches. Used substrate is FR4(${\epsilon}_r$=4.6 and t=1.6mm) and designed center frequency is 2.45GHz. The designed antenna has a wide bandwidth of 380Mhz form 2.333GHz to 2.713GHz(about 15.5%) including ISM band from 2.4GHz to 2.4835GHz.

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LTCC Stacked Patch Antenna for 19GHz Band WLAN (19GHz대역 무선랜용 LTCC 적층형 패치 안테나)

  • Yeom, Chan-Kyu;Lee, Yun-Bok;Kim, Young-Do;Lee, Hong-Min
    • Proceedings of the Korea Electromagnetic Engineering Society Conference
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    • 2003.11a
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    • pp.423-427
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    • 2003
  • In this paper, LTCC stacked patch antenna with a radial CPW fed slot and grounded-shorting vertical-via wall for 19GHz band wireless LAN is presented. Suggested antenna employed a patch and grounded-shorting vertical-via wall for radiation element, consist of feeding structure which a radial open feature at the end of the CPW feed line. The optimal design parameters of the antenna using by EM simulation program. We can see that enough to bandwidth 560MHz for 19GHz band WLAN antenna specification by the optimized antenna.

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Design of a Compact Broadband Stacked Microstrip Patch Antenna (광대역 적층 마이크로스트립 패치 안테나의 소형화 설계)

  • Kim, GunKyun;Rhee, Seung-Yeop;Yeo, Junho;Lee, Jong-Ig;Kim, Ohn
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2016.10a
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    • pp.72-73
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    • 2016
  • In this paper, we studied a method for miniaturizing a broadband stacked patch antenna structure which is widely used for bandwidth improvement. Main patch is a rectangular microstrip patch antenna fed by a 50-ohm microstrip line, and a parasitic patch is laid above the main patch. The size of the main patch is designed to be resonated near the center frequency of the desired frequency band. Then parasitic patch longer than main patch is placed above the main patch. The distance between two patches might be adjusted so as to achieve impedance matching using a shunt open stub. The shunt matching stub is inserted underneath the parasitic patch and so it does not require additional space, which enables the proposed antenna structure to be advantageous in miniaturizing antenna. The effects of the various parameters on the antenna performance are examined, and we introduced the design procedure for the proposed antenna to operate in the frequency range of 2.3-2.7 GHz.

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Wideband Stacked Microstrip Antenna with Parasitic Patches for 800MHz Band (기생패치를 이용한 800MHz 대역 광대역 적층 마이크로스트립 안테나)

  • Kim, GunKyun;Lee, Jong-Ig;Ko, Jin-hyun;Rhee, Seung-Yeop
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2016.05a
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    • pp.83-84
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    • 2016
  • A wideband stacked patch antenna with parasitic elements, rectangular and triangle shaped patches, is proposed. Two different shaped parasitic elements are placed in the above of main rectangular microstrip patch antenna in order to achieve wide bandwidth for 860 MHz band. Coupling between the main patch and parasitic patches is realized by thick air gap. The gap and locations of parasitic patches are found to be the main factor of the wideband impedance matching. The proposed antenna is designed on a ground plane with small size of $119mm{\times}109mm$ for application of compact transceivers. And the impedance bandwidth of the antenna should satisfied CDMA band to the 780MHz~890MHz.

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A Design of Dual-band Stacked Helix Monopole Antenna with Parasitic Patch (기생 패치를 이용한 이중 대역 적층형 헬릭스 모노폴 안테나 설계)

  • Jung, Jin-Woo;Kim, Kyoung-Keun;Lee, Hyeon-Jin;Lim, Yeong-Seog
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.44 no.1
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    • pp.155-161
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    • 2007
  • This paper presents the design simulation, implementation, and measurement of a miniaturized PCS / Satellite DMB dual-band stacked mompole antenna with a parasitic patch for mobile communication terminals. A stacked helix is realized by using a via hole with height of 0.4 mm and a diameter of 0.35 mm to connect upper- and lower-layer helix sections for a reduction of the dimensions of the antenna. In addition the stacked helix chip antenna is interleaved with a parasitic patch to achieve two different radiation modes. The ratio of the first frequency and the second frequency vary with the geometrical parameter of the parasitic patch. The fabricated antenna uses FR-4 substrate with a relative permittivity of 4.2. Its dimensions are $15.5{\times}7.6{\times}0.4 mm^3$. The measured impedance bandwidths (VSWR<2) are 240 and 250 MHz at the operating frequencies, respectively.