Microstrip Cross-coupled Interdigital SIR Based Bandpass Filter
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Date
2012-09
ORCID
Advisor
Referee
Mark
Journal Title
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Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Abstract
A simple and compact 4.9 GHz bandpass filter for C-band applications is proposed. This paper presents a novel microstrip cross-coupled interdigital half-wavelength stepped impedance resonator (SIR) based bandpass filter (BPF).The designed structure is similar to that of a combination of two parallel interdigital capacitors. The scattering parameters of the structure are measured using vector network analyzer (VNA). The self generated capacitive and inductive reactances within the interdigital resonators exhibited in a resonance frequency of 4.9 GHz. The resonant frequency and bandwidth of the capacitive cross-coupled resonator is directly optimized from the physical arrangement of the resonators. The measured insertion loss (S21) and return loss (S11) were 0.3 dB and 28 dB, respectively, at resonance frequency which were almost close to the simulation results.
Description
Citation
Radioengineering. 2012, vol. 21, č. 3, s. 881-885. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2012/12_03_0881_0885.pdf
http://www.radioeng.cz/fulltexts/2012/12_03_0881_0885.pdf
Document type
Peer-reviewed
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Published version
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en