Switchable square ring bandpass to bandstop filter for ultra-wideband applications

Mushtaq Alqaisy, Chandan Kumar Chakrabarty, Jawad K. Ali, Adam Reda Alhawari, Tale Saeidi

Research output: Contribution to journalArticle

Abstract

In this manuscript, serial-shunt of square ring resonators with step-impedance open circuited stub resonators to produce a new on-off switchable bandpass to bandstop response in the same ultra-wideband microstrip filter structure is proposed. The closed ring of series-shunt square ring resonators with a combine stubs are introduced to excite the bandpass response while bandstop characteristic excited when gaps are embedded in the corners of the square ring resonators. The main advantage of this microstrip filter is its capability to switch from bandpass-to-bandstop operation using open-short gap, respectively. A microwave simulator is utilized to show the switchable case by replacing Skyworks radio frequency diodes (RF-PIN) instead of those gaps. The entire filter models have been simulated using the computer simulation technology (CST) Microwave Studio. The computed results for the proposed filters were compared with the measured results of the both prototype structures (bandpass- and bandstop-filter). The codes also showed good agreement between them. Other advantages include being small in size, and low in effective cost.

Original languageEnglish
Pages (from-to)51-60
Number of pages10
JournalInternational Journal of Microwave and Wireless Technologies
Volume9
Issue number1
DOIs
Publication statusPublished - 01 Feb 2017

Fingerprint

Notch filters
Ultra-wideband (UWB)
Resonators
Microstrip filters
Microwaves
Studios
Bandpass filters
Diodes
Simulators
Switches
Computer simulation
Costs

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

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abstract = "In this manuscript, serial-shunt of square ring resonators with step-impedance open circuited stub resonators to produce a new on-off switchable bandpass to bandstop response in the same ultra-wideband microstrip filter structure is proposed. The closed ring of series-shunt square ring resonators with a combine stubs are introduced to excite the bandpass response while bandstop characteristic excited when gaps are embedded in the corners of the square ring resonators. The main advantage of this microstrip filter is its capability to switch from bandpass-to-bandstop operation using open-short gap, respectively. A microwave simulator is utilized to show the switchable case by replacing Skyworks radio frequency diodes (RF-PIN) instead of those gaps. The entire filter models have been simulated using the computer simulation technology (CST) Microwave Studio. The computed results for the proposed filters were compared with the measured results of the both prototype structures (bandpass- and bandstop-filter). The codes also showed good agreement between them. Other advantages include being small in size, and low in effective cost.",
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Switchable square ring bandpass to bandstop filter for ultra-wideband applications. / Alqaisy, Mushtaq; Kumar Chakrabarty, Chandan; Ali, Jawad K.; Alhawari, Adam Reda; Saeidi, Tale.

In: International Journal of Microwave and Wireless Technologies, Vol. 9, No. 1, 01.02.2017, p. 51-60.

Research output: Contribution to journalArticle

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