A 3.1 to 5GHz Low-Loss Planar Filter for MB-OFDM UWB Applications

Young Pyo Hong, Seong Sik Myoung, Jong Gwan Yook

Research output: Contribution to journalArticlepeer-review


A low-loss ultra-wide band (UWB) filter is presented, which uses miniaturized parallel coupled line along with an standard printed circuit board (PCB) technology. By analyzing even- and odd-mode impedances (in comparison with conventional parallel coupled lines) of miniaturized parallel coupled line, this structure provides tight coupling, thus, relaxing the requirements on physical dimensions width and spacing when designing broadband filters. A bandpass filter for Mode 1 (the first 3 sub-bands) in the 3.1-5 GHz band for Multi-Band Orthogonal Frequency Division Multiplexing (MB-OFDM) UWB is realized and compared with a conventional parallel coupled line filter. The experimental results show as much as 0.9 dB insertion loss improvement over theconventional counterpart.

Original languageEnglish
Pages (from-to)1098-1101
Number of pages4
JournalIEICE Transactions on Communications
Issue number4
Publication statusPublished - 2011 Apr

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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