Dual split resonator lowpass filter with ultra‐wide stopband and sharp roll‐off rate
| Autor: | Paruthikkal Mohammed Raphika, Thevaruparambil Abdulnazer Nisamol, P. Abdulla |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Coupling
Materials science Roll-off business.industry Low-pass filter 020208 electrical & electronic engineering Physics::Optics 020206 networking & telecommunications 02 engineering and technology Stopband Microstrip Resonator Optics Harmonics 0202 electrical engineering electronic engineering information engineering Equivalent circuit Electrical and Electronic Engineering business |
| Zdroj: | IET Microwaves, Antennas & Propagation. 14:1462-1468 |
| ISSN: | 1751-8733 1751-8725 |
| DOI: | 10.1049/iet-map.2019.0428 |
| Popis: | A novel microstrip lowpass filter design using rectangular split-ring resonators with dual splits are designed, analysed, and fabricated with exceptional performance such as ultra-wide stopband and sharp roll-off rate along with its compactness. The symmetrical suppressing cells are also employed to reject higher-order harmonics from the stopband without affecting selectivity. The expression for transmission zero of dual split resonator-1 is extracted from the equivalent circuit analysis and observed the significance of coupling. A sharp roll-off performance of 224 dB/GHz and relative stopband width of 161% are achieved with a cut-off frequency of 2.9 GHz. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text