• Title, Summary, Keyword: 내장형 안테나

Search Result 148, Processing Time 0.049 seconds

Radiation Pattern and Radio Sensitivity of PCS Band Mobile Phones with Internal Antenna and External Antenna (PCS 대역 안테나 내장형 단말기와 외장형 단말기의 방사패턴과 무선감도)

  • 공성신;오종대;양운근
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
    • /
    • v.15 no.4
    • /
    • pp.397-405
    • /
    • 2004
  • In this paper, performance analysis of mobile phone with internal antenna for PCS band was carried out. The radiation patterns for antenna and mobile phone with internal antenna were simulated by using 3D simulation program, HFSS and SEMCAD. Radiation pattern variation was observed according to installation of LED circuit and ground pattern and by using simulation radiation pattern was improved. And radiation patterns of mobile phones with internal and external antennas were measured by using for field measurement system and chamber. Measured radiation pattern for mobile phone with internal antenna shows good agreement with simulation result. And the radio sensitivities of mobile phones with internal and external antennas were measured by using Agilent E5515C and chamber and compared. The measured radio sensitivity of mobile phone with internal antenna shows proper performances comparable to other model with external antenna. Measured result shows that the difference on averaged co-polar radio sensitivity is 0.12 ㏈.

A study on the Characteristics of a Chip Antenna for Mobile Communication (이동통신용 Chip Antenna 특성에 관한 연구)

  • 박성일;고영혁
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • /
    • pp.83-87
    • /
    • 2003
  • 본 논문에서는 안테나의 이득을 극대화하기 위해서 Bluetooth PCB Layout 위에 내장형 마이크로 칩 안테나를 직접 설계하여 Bluetooth의 주요 사양인 2.4~2.4835GHz에서 동작할 수 있도록 Bluetooth용 내장형 마이크로 칩 안테나를 설계하였다. Bluetooth PCB Layout 크기는 실제 크기와 같은 54mm$\times$19mm$\times$2.4mm로 설계하고 마이크로 칩 안테나 크기는 11mm$\times$4mm$\times$l.6mm로 설계하여 상용화 된 프로그램인 HFSS에 의해 3.616dBi의 이득을 얻었다. 설계 제작된 Bluetooth용 내장형 마이크로 칩 안테나는 2.45GHz의 중심주파수에서 넓은 대역폭 10.71%을 확인하였다. 또한, 마이크로 칩안테나에서 용량의 변화와 용량의 위치 변화, 급전점의 위치 변화에 따른 공진주파수, 대역폭, 이득 등의 특성을 비교하였고, 제작된 칩안테나의 측정된 방사패턴에서 E-면과 H-면을 비교 분석했다.

  • PDF

Aircraft Embedded Antenna Design for JTDLS Complete System (JTDLS 완성형 체계를 위한 항공기 내장형 안테나 설계)

  • Yeo, Su-Cheol;Kang, Byoung-Wook;Choi, Hyo-Gi
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.15 no.3
    • /
    • pp.451-456
    • /
    • 2020
  • In this paper, we studied the method of designing a embedded antenna for mounting on the JTDLS complete aircraft. The proposed antenna satisfies the MIDS-LVT operation frequency band and is designed as a broadband in consideration of expandability. As a result of the design, it was confirmed that the proposed antenna has similar electrical performance to the existing blade antenna and has broadband characteristics. As a result of EM analysis, the antenna was mounted on the top and bottom parts of the aircraft to check the mount of the aircraft, and it was confirmed that both the top and bottom parts had good radiation characteristics. The technology acquired through this study is judged to be applicable to the JTDLS completed aircraft.

Design of Fabrication of a Small Microstrip Antenna for Bluetooth (BLUETOOTH용 소형 마이크로스트립 안테나 설계 및 제작)

  • 곽원일;고영혁
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • /
    • pp.230-233
    • /
    • 2002
  • 본 논문에서는 안테나의 이득을 극대화하기 위해서 Bluetooth PCB Layout 위에 Bluetooth용 내장형 마이크로 칩 안테나를 직접 설계하여 Bluetooth의 주요 사양인 2.4~2.4835GHz에서 동작할 수 있도록 Bluetooth용 내장형 마이크로 칩 안테나를 설계하였다. Bluetooth PCB Layout 크기는 실제 크기와 같은 54mm$\times$19mm$\times$2.4mm로 설계하고 마이크로 칩 안테나 크기는 11mm$\times$4mm$\times$l.6mm로 설계하여 상용화 된 프로그램인 HFSS에 의해 3.616dBi의 이득을 얻었다. 설계 제작된 Bluetooth용 내장형 마이크로 칩 안테나는 2.45GHz의 중심주파수에서 넓은 대역폭 10.71%을 확인하였다.

  • PDF

Internal Microstrip DualBand Antenna (내장형 마이크로스트립 듀얼밴드 안테나)

  • Park Seong-il;Ko Young-hyuk;Lee Hyeon-jin;Lim Yeong-seog
    • Journal of the Institute of Electronics Engineers of Korea TC
    • /
    • v.42 no.4
    • /
    • pp.29-36
    • /
    • 2005
  • Many novel designs of planar antennas for related applications such as internal mobile phone antennas, base station antennas, WLAN or Bluetooth antennas, and so on, have been reported very recently, especially since the year 2000. In this thesis, Dualband internal antenna for GSM/DSC handset is proposed. The antenna has a size of about 38mm$\times$90mm$\times$1mm, giving a total mobile phone PCB for support and fold type Patch of about 30mm$\times$8mm$\times$3.2mm. This antenna characteristic facilitates the fine-tuning of the two operating frequencies of 909MHz and 1762MHz in this dualband design. The measured radiation pattern in the E-plane and H-plane for operating frequencies of 909MHz and 1762MHz is compared and analyzed. The designed and fabricated two band internal antenna for GSM/DSC handset have a gain between 0dBi and 2.0dBi at all bands.

Characteristics of Inductively Coupled Plasma with a Multiple U-Type Internal Antenna for Flat Panel Display Applications (평판형 디스플레이 적용을 위한 내장형 Multiple U-Type 안테나를 이용한 유도결합형 플라즈마에 관한 연구)

  • Lim, J.H.;Kim, K.N.;Yeom, G.Y.
    • Journal of the Korean Vacuum Society
    • /
    • v.15 no.3
    • /
    • pp.241-245
    • /
    • 2006
  • In this study, the characteristics of large area internal linear ICP sources of 1020mm X 920mm(substrate area is 880 X 660mm) were investigated using two different types of antenna, that is, a conventional serpentine-type antenna and a newly developed multiple U-type antenna. The multiple antenna showed a higher plasma density, a higher radical density, and more plasma stability compared to the serpentine-type antenna, and it appeared from the higher inductively coupling and less standing wave effect compared to the serpentine-type antenna. Using the multiple U-type antenna, the plasma density of $2\times10^{11}/cm^3$ with the plasma uniformity of 4% could be obtained using 15mTorr Ar and 5000W of RF power.

Design of Triple-band Internal antenna for Slide Type cell phone (Slide Type 휴대폰 3중 대역 내장형 안테나 설계)

  • Lim, Seung-Jin;Lee, Jea-Hoon;Kang, Hyun-Su;Seo, Sang-Hyuk;Son, Tae-Ho
    • Proceedings of the KAIS Fall Conference
    • /
    • /
    • pp.977-980
    • /
    • 2009
  • 본 논문에서는 GSM/DCS/PCS대역에서 사용할 수 있는 변형된 IFA형태의 내장형 안테나를 설계하고 이를 제작하였다. 본 논문에서는 실제 상용화된 휴대단말기의 내장형 안테나를 3D Tool을 이용하여 전류 흐름의 상쇄작용을 고려하여 3중 대역을 형성시켰으며, Stub의 길이에 따라 변화하는 반사소실 특성을 확인하였다. 설계된 안테나를 제작 측정한 결과 기존의 안테나 보다 약 10.9%, 1.57dB 특성이 개선되었다.

  • PDF

Design of Triple-band Internal Antenna for the Mobile Phone (휴대폰 3중 대역 내장형 안테나 설계)

  • Oh, Kyu-Jong;Son, Tae-Ho
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.11 no.4
    • /
    • pp.171-174
    • /
    • 2011
  • In this paper, transformed IFA design is proposed to improve the antenna gain of GSM/DCS/PCS band. New antenna structure has been approved to be more convenient matching in the mobile phone terminal and increase gains and expansion bandwidth through the simulation and real measurement. According to measurement, it's shown 1.57dB higher average gain than conventional IFA.

Dualband Internal Antenna for GPS/PCS Handset (GPS/PCS 단말기용 듀얼밴드 내장형 안테나)

  • 정병운;이학용;이종철;김종헌;김남영;이병제;박면주
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
    • /
    • v.14 no.6
    • /
    • pp.550-557
    • /
    • 2003
  • In this paper, two dualband internal antennas for GPS/PCS handset are proposed. At first, the monopole antenna with parasitic dipole element is designed to print PCB of handset directly. At second, the antenna with bended loop structure is designed to bend to use internal space of handset maximumly. The proposed dualband internal antennas provide a 2:1 VSWR bandwidth of over 19.1 % which are possible to cover two bands at once. the antennas have a gain between -0.4 and 3.33 ㏈i at all bands and they have almost omni-directional patterns.