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Miniaturised tri‐band lowpass–bandpass filter using lumped‐element structure.
- Source :
- Electronics Letters (Wiley-Blackwell); Mar2019, Vol. 55 Issue 6, p272-274, 3p
- Publication Year :
- 2019
-
Abstract
- In this Letter, a miniaturised tri‐band lowpass–bandpass (LP‐BP) filter is proposed by using lumped‐element structure. The lowpass passband (LP) and the first bandpass passband (1‐BP) are produced by using the transmission zeros to divide a lowpass filtering response into a dual‐band LP‐BP filtering response. The second bandpass passband (2‐BP) is produced by further loading a lumped‐element circuit. As an example, an LP with 3 dB cut‐off frequency of 1 GHz, and two BPs centred at 2.45/5.2 GHz for the WLAN applications are designed. The fabricated tri‐band LP‐BP filter has low passband insertion losses of 0.08/0.69/1.38 dB, and occupies a compact circuit area of 0.055λgc × 0.063λgc. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00135194
- Volume :
- 55
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Electronics Letters (Wiley-Blackwell)
- Publication Type :
- Academic Journal
- Accession number :
- 148787337
- Full Text :
- https://doi.org/10.1049/el.2018.8054