A PCB-compatible 3-dB coupler using microstrip-to-CPW via-hole transitions

Jui Chieh Chiu, Jih Ming Lin, Mau Phon Houng, Yeong Her Wang

研究成果: Article同行評審

24 引文 斯高帕斯(Scopus)


A 3-dB coupler by implementing microstrip-to-coplanar waveguide (CPW) via-hole transitions is proposed. The proposed coupler, with the advantages of wider coupled line widths and spacing without using any bonding wires, can eliminate the uncertain factors of conventional Lange couplers caused by the printed circuit board (PCB) manufacturing processes. The proposed coupler can be easily fabricated on a single-layer PCB substrate instead of using multilayer substrates. Good agreements between the simulation and the measurement in the frequency range from 0.45 to 5 GHz can be achieved. The measured results at the center frequency of 2.4 GHz have the return loss better than - 15 dB; the insertion loss of coupled and direct ports is about 3 ± 0.2 dB and the relative phase difference of 89 ± 0.3°. The dimension of the coupler is 3.1 cm × 1.8 cm.

頁(從 - 到)369-371
期刊IEEE Microwave and Wireless Components Letters
出版狀態Published - 2006 六月 1

All Science Journal Classification (ASJC) codes

  • 凝聚態物理學
  • 電氣與電子工程


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