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...

Full description

Bibliographic Details
Main Authors: R. K. Maharjan, B. Shrestha, N. Y. Kim
Format: Article
Language:English
Published: Spolecnost pro radioelektronicke inzenyrstvi 2012-09-01
Series:Radioengineering
Subjects:
Online Access:http://www.radioeng.cz/fulltexts/2012/12_03_0881_0885.pdf
_version_ 1818245838455963648
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