A novel Minkowski-island-based fractal patch for dual-mode and miniaturization band-pass filters
✍ Scribed by Ji-Chyun Liu; Ssu-Hung Chiu; Ching-Pin Kuei; Bing-Hao Zeng
- Book ID
- 102950734
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 572 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A miniaturized dual‐mode band‐pass filter (BPF) using Minkowski‐island‐based (MIB) fractal patch resonator is presented in this article. The BPF is mainly formed by a λ~g~/4 square patch resonator, which is a MIB fractal configuration with second order iteration is embedded in the patch. By tuning the perturbation, which resulted from the fractal patch, two resonant modes are excited and a pair of transmission zeros are generated to improve the BPF performance. The proposed filter at center frequency (f~0~) of 630 MHz has very good measured characteristics including the bandwidth of 552–708 MHz (3‐dB fractional bandwidth of 24.8%), low insertion loss of –1.38 dB and size reduction with 76.4%. The filter performance is characterized to verify the design concept. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:594–597, 2011; View this article at wileyonlinelibrary.com. DOI 10.1002/mop.25796