Abstract
A compact low-pass filter (LPF) with ultrabroad stopband characteristic is presented in this article. This filter mainly consists of a rectangular stub resonator and cumulative open-circuited stubs, providing multiple transmission zeros to form a wide stopband region. Further, two open stub loads are simply adopted to improve the band selectivity. This fabricated LPF exhibits a 3 dB cutoff frequency (fc) at 1.74 GHz with an average low insertion loss of 0.25 dB and a broad stopband region from 2.6 to 22.8 GHz (10.8c) under a high rejection level of 20 dB.
Original language | English |
---|---|
Pages (from-to) | 2800-2803 |
Number of pages | 4 |
Journal | Microwave and Optical Technology Letters |
Volume | 57 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2015 Dec 1 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering