Equivalent J-inverter network parameters analysis and cancellation of spurious response of parallel coupled microstrip line

In this paper, the frequency-dispersive characteristic of a two-port parallel coupled microstrip line (PCML) is presented using equivalent J-inverter network parameters which were obtain from its admittance parameters. The extracted J-inverter parameters, J-susceptance and electrical line length, we...

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Main Authors: Marimuthu, Jayaseelan, Esa, Mazlina
Format: Book Section
Published: IEEE 2006
Subjects:
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author Marimuthu, Jayaseelan
Esa, Mazlina
author_facet Marimuthu, Jayaseelan
Esa, Mazlina
author_sort Marimuthu, Jayaseelan
collection ePrints
description In this paper, the frequency-dispersive characteristic of a two-port parallel coupled microstrip line (PCML) is presented using equivalent J-inverter network parameters which were obtain from its admittance parameters. The extracted J-inverter parameters, J-susceptance and electrical line length, were used to obtain the transmission zero frequency, fundamental response frequency and harmonic response frequency of the PCML. The transmission zero frequency can be realigned by varying a centrally located single groove size to suppress the first spurious harmonic passband of the filter. A technique was identified by using J-inverter parameters to cancel the spurious response. It was found that the transmission zero of J-susceptance null of the PCML can be realigned to cancel the first harmonic resonance. This was done by using a single groove with specific dimension. The proposed technique was justified by two single-stage bandpass filter of PCML with tight coupling characteristic.
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spelling utm.eprints-93232017-09-02T08:44:32Z http://eprints.utm.my/9323/ Equivalent J-inverter network parameters analysis and cancellation of spurious response of parallel coupled microstrip line Marimuthu, Jayaseelan Esa, Mazlina TK Electrical engineering. Electronics Nuclear engineering In this paper, the frequency-dispersive characteristic of a two-port parallel coupled microstrip line (PCML) is presented using equivalent J-inverter network parameters which were obtain from its admittance parameters. The extracted J-inverter parameters, J-susceptance and electrical line length, were used to obtain the transmission zero frequency, fundamental response frequency and harmonic response frequency of the PCML. The transmission zero frequency can be realigned by varying a centrally located single groove size to suppress the first spurious harmonic passband of the filter. A technique was identified by using J-inverter parameters to cancel the spurious response. It was found that the transmission zero of J-susceptance null of the PCML can be realigned to cancel the first harmonic resonance. This was done by using a single groove with specific dimension. The proposed technique was justified by two single-stage bandpass filter of PCML with tight coupling characteristic. IEEE 2006-09 Book Section PeerReviewed Marimuthu, Jayaseelan and Esa, Mazlina (2006) Equivalent J-inverter network parameters analysis and cancellation of spurious response of parallel coupled microstrip line. In: RF and Microwave Conference, 2006. RFM 2006. International. IEEE, pp. 247-252. ISBN 0-7803-9745-2 http://dx.doi.org/10.1109/RFM.2006.331079 DOI : 10.1109/RFM.2006.331079
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Marimuthu, Jayaseelan
Esa, Mazlina
Equivalent J-inverter network parameters analysis and cancellation of spurious response of parallel coupled microstrip line
title Equivalent J-inverter network parameters analysis and cancellation of spurious response of parallel coupled microstrip line
title_full Equivalent J-inverter network parameters analysis and cancellation of spurious response of parallel coupled microstrip line
title_fullStr Equivalent J-inverter network parameters analysis and cancellation of spurious response of parallel coupled microstrip line
title_full_unstemmed Equivalent J-inverter network parameters analysis and cancellation of spurious response of parallel coupled microstrip line
title_short Equivalent J-inverter network parameters analysis and cancellation of spurious response of parallel coupled microstrip line
title_sort equivalent j inverter network parameters analysis and cancellation of spurious response of parallel coupled microstrip line
topic TK Electrical engineering. Electronics Nuclear engineering
work_keys_str_mv AT marimuthujayaseelan equivalentjinverternetworkparametersanalysisandcancellationofspuriousresponseofparallelcoupledmicrostripline
AT esamazlina equivalentjinverternetworkparametersanalysisandcancellationofspuriousresponseofparallelcoupledmicrostripline