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Simulation and Improvement of 5GHz Power Divider on FR-4 PCB

[+] Author Affiliations
Mu-Chun Wang

Ming Hsin University of Science & Technology, Hsin-Chu, Taiwan; National Taipei University of Technology, Taipei, Taiwan

Chung-Hsin Kuo

Ming Hsin University of Science & Technology, Hsin-Chu, Taiwan

Zhen-Ying Hsieh, Shuang-Yuan Chen

National Taipei University of Technology, Taipei, Taiwan

Chun-Wei Huang

AboCom System, Inc., Miao-Lih, Taiwan

Paper No. MicroNano2008-70090, pp. 123-128; 6 pages
doi:10.1115/MicroNano2008-70090
From:
  • 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems
  • 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems
  • Clear Water Bay, Kowloon, Hong Kong, June 3–5, 2008
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4294-0 | eISBN: 0-7918-3819-6
  • Copyright © 2008 by ASME

abstract

In the recent electronic industry, the fiber-resin (FR-4) material is commonly and usually applied to printed circuit board (PCB). Below 3GHz radio-frequency operation range, the FR-4 material board demonstrates a good stability with frequency variation. However, while the central frequency shifts to 5GHz, the characteristic of this material shows some unstable phenomenon with frequency due to the material integrity. For a real FR-4 material, dielectric constant, dissipation factor, coefficient of thermal expansion, and thermal conductivity, basically, are not uniform in each part. In order to overcome these difficulties, this team adopts the simulation concept of the Wilkinson power divider and experimentally adjusts the micro-strip lines in 5GHz power divider. Shortening the metal-line length on the PCB means that the operation wavelength is also reduced. Using this idea and carefully compensating for extra connection effects with real circuit operation, we successfully provide a lower power-loss 5GHz power divider in commercial IC system applications, especially in wireless local-area network (WLAN).

Copyright © 2008 by ASME
Topics: Simulation

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