Open-stopband suppression and cross-polarization reduction of a substrate integrated waveguide leaky-wave antenna

Debabrata K. Karmokar; Shu-Lin Chen; Pei-Yuan Qin; Y. Jay Guo

doi:10.23919/URSIAP-RASC.2019.8738427

Open-stopband suppression and cross-polarization reduction of a substrate integrated waveguide leaky-wave antenna

Debabrata K. Karmokar^*
, Shu-Lin Chen
, Pei-Yuan Qin
, Y. Jay Guo

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

Most leaky-wave antennas (LWAs) suffer from significant gain degradation when the main beam points towards broadside. This is because an open stopband (OSB) restricts broadside radiation. In this paper, a method to suppress the OSB of a periodic substrate integrated waveguide (SIW) LWA is discussed. By simultaneously introducing a slot and a partially radiating wall in each unit cell the impedance in the OSB region has been matched and hence a continuous beam scan through broadside is achieved. The developed LWA can scan its main beam from 74° continuously to +40° when the frequency varies from 7.45 to 10.55 GHz, with a broadside gain and a level of cross-polarization for the broadside beam of 10.8 dBi and 21.37 dB, respectively.

Original language	English
Title of host publication	2019 URSI Asia-Pacific Radio Science Conference (AP-RASC)
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Number of pages	4
ISBN (Electronic)	9789082598759, 9789082598742
ISBN (Print)	9781538685518
DOIs	https://doi.org/10.23919/URSIAP-RASC.2019.8738427
Publication status	Published - 2019
Externally published	Yes
Event	2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019 - New Delhi, India Duration: 9 Mar 2019 → 15 Mar 2019

Conference

Conference	2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019
Country/Territory	India
City	New Delhi
Period	9/03/19 → 15/03/19

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10.23919/URSIAP-RASC.2019.8738427

Cite this

@inproceedings{47080fa40996486281246026f6e83bee,

title = "Open-stopband suppression and cross-polarization reduction of a substrate integrated waveguide leaky-wave antenna",

abstract = "Most leaky-wave antennas (LWAs) suffer from significant gain degradation when the main beam points towards broadside. This is because an open stopband (OSB) restricts broadside radiation. In this paper, a method to suppress the OSB of a periodic substrate integrated waveguide (SIW) LWA is discussed. By simultaneously introducing a slot and a partially radiating wall in each unit cell the impedance in the OSB region has been matched and hence a continuous beam scan through broadside is achieved. The developed LWA can scan its main beam from 74° continuously to +40° when the frequency varies from 7.45 to 10.55 GHz, with a broadside gain and a level of cross-polarization for the broadside beam of 10.8 dBi and 21.37 dB, respectively.",

author = "Karmokar, \{Debabrata K.\} and Shu-Lin Chen and Pei-Yuan Qin and Guo, \{Y. Jay\}",

year = "2019",

doi = "10.23919/URSIAP-RASC.2019.8738427",

language = "English",

isbn = "9781538685518",

booktitle = "2019 URSI Asia-Pacific Radio Science Conference (AP-RASC)",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019 ; Conference date: 09-03-2019 Through 15-03-2019",

}

Karmokar, DK, Chen, S-L, Qin, P-Y & Guo, YJ 2019, Open-stopband suppression and cross-polarization reduction of a substrate integrated waveguide leaky-wave antenna. in 2019 URSI Asia-Pacific Radio Science Conference (AP-RASC). Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, 2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019, New Delhi, India, 9/03/19. https://doi.org/10.23919/URSIAP-RASC.2019.8738427

Open-stopband suppression and cross-polarization reduction of a substrate integrated waveguide leaky-wave antenna. / Karmokar, Debabrata K.; Chen, Shu-Lin; Qin, Pei-Yuan et al.
2019 URSI Asia-Pacific Radio Science Conference (AP-RASC). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2019.

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

TY - GEN

T1 - Open-stopband suppression and cross-polarization reduction of a substrate integrated waveguide leaky-wave antenna

AU - Karmokar, Debabrata K.

AU - Chen, Shu-Lin

AU - Qin, Pei-Yuan

AU - Guo, Y. Jay

PY - 2019

Y1 - 2019

N2 - Most leaky-wave antennas (LWAs) suffer from significant gain degradation when the main beam points towards broadside. This is because an open stopband (OSB) restricts broadside radiation. In this paper, a method to suppress the OSB of a periodic substrate integrated waveguide (SIW) LWA is discussed. By simultaneously introducing a slot and a partially radiating wall in each unit cell the impedance in the OSB region has been matched and hence a continuous beam scan through broadside is achieved. The developed LWA can scan its main beam from 74° continuously to +40° when the frequency varies from 7.45 to 10.55 GHz, with a broadside gain and a level of cross-polarization for the broadside beam of 10.8 dBi and 21.37 dB, respectively.

AB - Most leaky-wave antennas (LWAs) suffer from significant gain degradation when the main beam points towards broadside. This is because an open stopband (OSB) restricts broadside radiation. In this paper, a method to suppress the OSB of a periodic substrate integrated waveguide (SIW) LWA is discussed. By simultaneously introducing a slot and a partially radiating wall in each unit cell the impedance in the OSB region has been matched and hence a continuous beam scan through broadside is achieved. The developed LWA can scan its main beam from 74° continuously to +40° when the frequency varies from 7.45 to 10.55 GHz, with a broadside gain and a level of cross-polarization for the broadside beam of 10.8 dBi and 21.37 dB, respectively.

UR - https://www.scopus.com/pages/publications/85068598025

UR - http://purl.org/au-research/grants/arc/DP160102219

U2 - 10.23919/URSIAP-RASC.2019.8738427

DO - 10.23919/URSIAP-RASC.2019.8738427

M3 - Conference proceeding contribution

SN - 9781538685518

BT - 2019 URSI Asia-Pacific Radio Science Conference (AP-RASC)

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Piscataway, NJ

T2 - 2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019

Y2 - 9 March 2019 through 15 March 2019

ER -

Open-stopband suppression and cross-polarization reduction of a substrate integrated waveguide leaky-wave antenna

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