Design of microstrip lowpass filter with wide stopband and sharp roll-off using hexangular shaped resonator

Design of microstrip lowpass filter with wide stopband and sharp roll-off using hexangular shaped resonator

A compact lowpass filter using a hexangular shaped resonator is presented. The designed lowpass filter has a −3 dB cutoff frequency of 2.97 GHz. The stopband bandwidth for the attenuation level of −20 dB is from 3.32 GHz up to 21 GHz, and the circuit only occupies 10.04 × 10.92 mm2. The structure is...

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Veröffentlicht in:Electronics letters 2015-01, Vol.51 (1), p.69-71
Hauptverfasser: Hayati, M, Gholami, M, Vaziri, H.S, Zaree, T
Format: Artikel
Sprache:eng
Schlagworte:
Attenuation
Bandwidth
Circuits
compact lowpass filter
frequency 2.97 GHz
frequency 3.32 GHz to 21 GHz
hexangular shaped resonator
Insertion loss
Low pass filters
microstrip filters
microstrip lowpass filter
microwave filters
Microwave technology
Noise levels
resonator filters
Resonators
sharp transition band
Simulation
stopband bandwidth
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Beschreibung
Zusammenfassung:A compact lowpass filter using a hexangular shaped resonator is presented. The designed lowpass filter has a −3 dB cutoff frequency of 2.97 GHz. The stopband bandwidth for the attenuation level of −20 dB is from 3.32 GHz up to 21 GHz, and the circuit only occupies 10.04 × 10.92 mm2. The structure is simulated, fabricated and measured. Both simulation and measured results are presented and compared and there is good agreement between them. The insertion loss in the passband is
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2014.3853