High Power Low-Loss Terahertz Filter with Higher-Order Mode Suppression

Ayesha Kosar Fahad; Ruan Cunjun; Tanveer Ul Haq; Shahidullah Khan; Muhammad Fahad Shahzad

doi:10.1109/IBCAST.2019.8667260

High Power Low-Loss Terahertz Filter with Higher-Order Mode Suppression

Ayesha Kosar Fahad
, Ruan Cunjun
, Tanveer Ul Haq
, Shahidullah Khan
, Muhammad Fahad Shahzad

School of Electronic and Information Engineering

Beihang University
Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

Filters consisting of oversized waveguides need to suppress higher order modes that may propagate due to trapped mode resonances. This research work presents a filtering system consisting of tapers and ultra wide band oversized waveguide filter. The purpose of the filtering system is to pass the desired band while rejecting unwanted band along with suppression of higher order modes. Design includes inductive irises coupled filter section connected between oversized waveguides and used to suppress higher order modes. Filter has pass band from 0.29-0.39 THz. 3rd order direct coupled oversized waveguide filter is designed using all pole chebychev synthesis procedure having inductive irises with waveguide dimensions as a × b = 2000μm × 600μm. Thickness of irises is selected to be 100μm to ensure high power handling capability. Corners of the filters are chamfered with fillet radius 20μm. Taper is designed in order to connect the standard waveguide (710um × 355um) to oversized waveguide (2000um × 600um).

Original language	English
Title of host publication	Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	985-988
Number of pages	4
ISBN (Electronic)	9781538677292
DOIs	https://doi.org/10.1109/IBCAST.2019.8667260
State	Published - 13 Mar 2019
Event	16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019 - Islamabad, Pakistan Duration: 8 Jan 2019 → 12 Jan 2019

Publication series

Name	Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019

Conference

Conference	16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019
Country/Territory	Pakistan
City	Islamabad
Period	8/01/19 → 12/01/19

Keywords

higher order modes
low loss transmission
o waveguide filters
power handling capability
terahertz filters

Access to Document

10.1109/IBCAST.2019.8667260

Cite this

Fahad, A. K., Cunjun, R., Haq, T. U., Khan, S., & Shahzad, M. F. (2019). High Power Low-Loss Terahertz Filter with Higher-Order Mode Suppression. In Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019 (pp. 985-988). Article 8667260 (Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IBCAST.2019.8667260

Fahad, Ayesha Kosar ; Cunjun, Ruan ; Haq, Tanveer Ul et al. / High Power Low-Loss Terahertz Filter with Higher-Order Mode Suppression. Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 985-988 (Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019).

@inproceedings{367107d0b2874df79c8592a77ee33cdf,

title = "High Power Low-Loss Terahertz Filter with Higher-Order Mode Suppression",

abstract = "Filters consisting of oversized waveguides need to suppress higher order modes that may propagate due to trapped mode resonances. This research work presents a filtering system consisting of tapers and ultra wide band oversized waveguide filter. The purpose of the filtering system is to pass the desired band while rejecting unwanted band along with suppression of higher order modes. Design includes inductive irises coupled filter section connected between oversized waveguides and used to suppress higher order modes. Filter has pass band from 0.29-0.39 THz. 3rd order direct coupled oversized waveguide filter is designed using all pole chebychev synthesis procedure having inductive irises with waveguide dimensions as a × b = 2000μm × 600μm. Thickness of irises is selected to be 100μm to ensure high power handling capability. Corners of the filters are chamfered with fillet radius 20μm. Taper is designed in order to connect the standard waveguide (710um × 355um) to oversized waveguide (2000um × 600um).",

keywords = "higher order modes, low loss transmission, o waveguide filters, power handling capability, terahertz filters",

author = "Fahad, \{Ayesha Kosar\} and Ruan Cunjun and Haq, \{Tanveer Ul\} and Shahidullah Khan and Shahzad, \{Muhammad Fahad\}",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019 ; Conference date: 08-01-2019 Through 12-01-2019",

year = "2019",

month = mar,

day = "13",

doi = "10.1109/IBCAST.2019.8667260",

language = "英语",

series = "Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019",

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Fahad, AK, Cunjun, R, Haq, TU, Khan, S & Shahzad, MF 2019, High Power Low-Loss Terahertz Filter with Higher-Order Mode Suppression. in Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019., 8667260, Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019, Institute of Electrical and Electronics Engineers Inc., pp. 985-988, 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019, Islamabad, Pakistan, 8/01/19. https://doi.org/10.1109/IBCAST.2019.8667260

High Power Low-Loss Terahertz Filter with Higher-Order Mode Suppression. / Fahad, Ayesha Kosar; Cunjun, Ruan; Haq, Tanveer Ul et al.
Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 985-988 8667260 (Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Cunjun, Ruan

AU - Haq, Tanveer Ul

AU - Khan, Shahidullah

AU - Shahzad, Muhammad Fahad

PY - 2019/3/13

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N2 - Filters consisting of oversized waveguides need to suppress higher order modes that may propagate due to trapped mode resonances. This research work presents a filtering system consisting of tapers and ultra wide band oversized waveguide filter. The purpose of the filtering system is to pass the desired band while rejecting unwanted band along with suppression of higher order modes. Design includes inductive irises coupled filter section connected between oversized waveguides and used to suppress higher order modes. Filter has pass band from 0.29-0.39 THz. 3rd order direct coupled oversized waveguide filter is designed using all pole chebychev synthesis procedure having inductive irises with waveguide dimensions as a × b = 2000μm × 600μm. Thickness of irises is selected to be 100μm to ensure high power handling capability. Corners of the filters are chamfered with fillet radius 20μm. Taper is designed in order to connect the standard waveguide (710um × 355um) to oversized waveguide (2000um × 600um).

AB - Filters consisting of oversized waveguides need to suppress higher order modes that may propagate due to trapped mode resonances. This research work presents a filtering system consisting of tapers and ultra wide band oversized waveguide filter. The purpose of the filtering system is to pass the desired band while rejecting unwanted band along with suppression of higher order modes. Design includes inductive irises coupled filter section connected between oversized waveguides and used to suppress higher order modes. Filter has pass band from 0.29-0.39 THz. 3rd order direct coupled oversized waveguide filter is designed using all pole chebychev synthesis procedure having inductive irises with waveguide dimensions as a × b = 2000μm × 600μm. Thickness of irises is selected to be 100μm to ensure high power handling capability. Corners of the filters are chamfered with fillet radius 20μm. Taper is designed in order to connect the standard waveguide (710um × 355um) to oversized waveguide (2000um × 600um).

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Y2 - 8 January 2019 through 12 January 2019

ER -

Fahad AK, Cunjun R, Haq TU, Khan S, Shahzad MF. High Power Low-Loss Terahertz Filter with Higher-Order Mode Suppression. In Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 985-988. 8667260. (Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019). doi: 10.1109/IBCAST.2019.8667260

High Power Low-Loss Terahertz Filter with Higher-Order Mode Suppression

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Keywords

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