Journal of the Korea Society of Computer and Information (한국컴퓨터정보학회논문지)

Korean Society of Computer Information (한국컴퓨터정보학회)
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RF Receiver design for Satellite Digital Audio Reception (Antenna)

  • Kim, Jang-Wook (Dept. of Information Electronic Engineering, Dongyang Mirae University) ;
  • Jeon, Joo-Seong (Mobile O&M Center, Korea Telecom Network Division)
  • Received : 2019.05.29
  • Accepted : 2019.07.16
  • Published : 2019.07.31
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Abstract

This paper describes a design for a RF receiver to receive satellite digital audio service. The RF receiver designed in this study is a planar structure that is easy to install on the rooftop of a car and is compact in size. In addition, it can be applied to certain commercial models because it has low noise and high gain characteristics. The impedance bandwidth of antenna is 17.8%(415MHz), and the axial ratio is below 3dB as good properties for the bandwidth of 40MHz which is a satellite digital audio service band. Also, it had a broad radiation beamwidth of $95.41^{\circ}$ in H-plane and $117.45^{\circ}$ in E-plane. From the results of the field test of satellite digital audio service reception for the RF receiver, it demonstrated good C/N rate(10.2dB).

Keywords

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Fig. 1. Microstrip patch antenna. (a) top view (b) side view (c) equivalent circuit

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Fig. 2. Geometry of the proposed antenna. (a) patch (b)patch and power divider of antenna (c) power divider (d)side view

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Fig. 3. Surface current distributions. (a) conventional patch (b) proposed patch

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Fig. 4. Layout of a Low Noise Amplifier

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Fig. 5. Geometry of the RF receiver. (a) patch antenna (top view) (b) power divider(bottom view) (c) low noise amplifier

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Fig. 6. Measured axial ratio

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Fig. 7. Measured return loss

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Fig. 8. Radiation pattern. (a) H-plane (b) E-plane

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Fig. 9. Measured gain curve

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Fig. 10. Measured carrier signal of satellite digital audio

Table 1. Specifications for a design

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Table 2. Measured results of the power divider

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