Microstrip Cross-coupled Interdigital SIR Based Bandpass Filter
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...
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Format: | Article |
Language: | English |
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Spolecnost pro radioelektronicke inzenyrstvi
2012-09-01
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Series: | Radioengineering |
Subjects: | |
Online Access: | http://www.radioeng.cz/fulltexts/2012/12_03_0881_0885.pdf |
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author | R. K. Maharjan B. Shrestha N. Y. Kim |
author_facet | R. K. Maharjan B. Shrestha N. Y. Kim |
author_sort | R. K. Maharjan |
collection | DOAJ |
description | 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. |
first_indexed | 2024-12-12T14:39:17Z |
format | Article |
id | doaj.art-0be2737d54f3459ca65734ea5a3122f5 |
institution | Directory Open Access Journal |
issn | 1210-2512 |
language | English |
last_indexed | 2024-12-12T14:39:17Z |
publishDate | 2012-09-01 |
publisher | Spolecnost pro radioelektronicke inzenyrstvi |
record_format | Article |
series | Radioengineering |
spelling | doaj.art-0be2737d54f3459ca65734ea5a3122f52022-12-22T00:21:18ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122012-09-01213881885Microstrip Cross-coupled Interdigital SIR Based Bandpass FilterR. K. MaharjanB. ShresthaN. Y. KimA 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.www.radioeng.cz/fulltexts/2012/12_03_0881_0885.pdfBandpass filterinterdigital resonatorstepped impedance resonator (SIR)half wavelength SIR resonator |
spellingShingle | R. K. Maharjan B. Shrestha N. Y. Kim Microstrip Cross-coupled Interdigital SIR Based Bandpass Filter Radioengineering Bandpass filter interdigital resonator stepped impedance resonator (SIR) half wavelength SIR resonator |
title | Microstrip Cross-coupled Interdigital SIR Based Bandpass Filter |
title_full | Microstrip Cross-coupled Interdigital SIR Based Bandpass Filter |
title_fullStr | Microstrip Cross-coupled Interdigital SIR Based Bandpass Filter |
title_full_unstemmed | Microstrip Cross-coupled Interdigital SIR Based Bandpass Filter |
title_short | Microstrip Cross-coupled Interdigital SIR Based Bandpass Filter |
title_sort | microstrip cross coupled interdigital sir based bandpass filter |
topic | Bandpass filter interdigital resonator stepped impedance resonator (SIR) half wavelength SIR resonator |
url | http://www.radioeng.cz/fulltexts/2012/12_03_0881_0885.pdf |
work_keys_str_mv | AT rkmaharjan microstripcrosscoupledinterdigitalsirbasedbandpassfilter AT bshrestha microstripcrosscoupledinterdigitalsirbasedbandpassfilter AT nykim microstripcrosscoupledinterdigitalsirbasedbandpassfilter |