Effect of unit cell arrangements in near field transformation lattice on aperture efficiency of resonant cavity antenna

Sujan Shrestha; Bahare Mohamadzade; Affan A. Baba; Raheel M. Hashmi

doi:10.1109/ICEAA.2019.8878923

Effect of unit cell arrangements in near field transformation lattice on aperture efficiency of resonant cavity antenna

Sujan Shrestha, Bahare Mohamadzade, Affan A. Baba, Raheel M. Hashmi

School of Engineering

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

2 Citations (Scopus)

Abstract

Near field phase transformation lattice structure is presented to correct the electric field phase variation above a source antenna. A high gain resonant cavity antenna (RCA) is used as a source, which operates at 12 GHz. The 3D printed phase transformation structure, with two different arrangements of the unit cells, is designed above the RCA at the one-eighth of wavelength. The rectangular arrangement exhibits a more uniform field distribution than that of the circular arrangement. Additionally, in the rectangular arrangement, the gain of the antenna is enhanced by 2.11dB from 21.98 to 24.09 dBi, whereas in the circular arrangement, this value increased by 2.08 dB from 21.98 to 24.06 dBi. For both the cases, the aperture efficiency and bandwidth aperture efficiency product (BAEP) increased from 34.24 to 55.78% and 55.024 to 109.33%² , respectively.

Original language	English
Title of host publication	Proceedings of the 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA)
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	0370-0371
Number of pages	2
ISBN (Electronic)	9781728105635, 9781728105628
ISBN (Print)	9781728105642
DOIs	https://doi.org/10.1109/ICEAA.2019.8878923
Publication status	Published - 2019
Event	21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019 - Granada, Spain Duration: 9 Sept 2019 → 13 Sept 2019

Conference

Conference	21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
Country/Territory	Spain
City	Granada
Period	9/09/19 → 13/09/19

Keywords

Near Field Transformation Lattice
3D printing
Resonant Cavity Antenna

Access to Document

10.1109/ICEAA.2019.8878923

Cite this

Shrestha, S., Mohamadzade, B., Baba, A. A., & Hashmi, R. M. (2019). Effect of unit cell arrangements in near field transformation lattice on aperture efficiency of resonant cavity antenna. In Proceedings of the 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA) (pp. 0370-0371). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ICEAA.2019.8878923

Shrestha, Sujan ; Mohamadzade, Bahare ; Baba, Affan A. et al. / Effect of unit cell arrangements in near field transformation lattice on aperture efficiency of resonant cavity antenna. Proceedings of the 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA). Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2019. pp. 0370-0371

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title = "Effect of unit cell arrangements in near field transformation lattice on aperture efficiency of resonant cavity antenna",

abstract = "Near field phase transformation lattice structure is presented to correct the electric field phase variation above a source antenna. A high gain resonant cavity antenna (RCA) is used as a source, which operates at 12 GHz. The 3D printed phase transformation structure, with two different arrangements of the unit cells, is designed above the RCA at the one-eighth of wavelength. The rectangular arrangement exhibits a more uniform field distribution than that of the circular arrangement. Additionally, in the rectangular arrangement, the gain of the antenna is enhanced by 2.11dB from 21.98 to 24.09 dBi, whereas in the circular arrangement, this value increased by 2.08 dB from 21.98 to 24.06 dBi. For both the cases, the aperture efficiency and bandwidth aperture efficiency product (BAEP) increased from 34.24 to 55.78% and 55.024 to 109.33%2 , respectively.",

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Shrestha, S, Mohamadzade, B, Baba, AA & Hashmi, RM 2019, Effect of unit cell arrangements in near field transformation lattice on aperture efficiency of resonant cavity antenna. in Proceedings of the 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA). Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 0370-0371, 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019, Granada, Spain, 9/09/19. https://doi.org/10.1109/ICEAA.2019.8878923

Effect of unit cell arrangements in near field transformation lattice on aperture efficiency of resonant cavity antenna. / Shrestha, Sujan; Mohamadzade, Bahare; Baba, Affan A. et al.
Proceedings of the 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2019. p. 0370-0371.

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

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T1 - Effect of unit cell arrangements in near field transformation lattice on aperture efficiency of resonant cavity antenna

AU - Shrestha, Sujan

AU - Mohamadzade, Bahare

AU - Baba, Affan A.

AU - Hashmi, Raheel M.

PY - 2019

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N2 - Near field phase transformation lattice structure is presented to correct the electric field phase variation above a source antenna. A high gain resonant cavity antenna (RCA) is used as a source, which operates at 12 GHz. The 3D printed phase transformation structure, with two different arrangements of the unit cells, is designed above the RCA at the one-eighth of wavelength. The rectangular arrangement exhibits a more uniform field distribution than that of the circular arrangement. Additionally, in the rectangular arrangement, the gain of the antenna is enhanced by 2.11dB from 21.98 to 24.09 dBi, whereas in the circular arrangement, this value increased by 2.08 dB from 21.98 to 24.06 dBi. For both the cases, the aperture efficiency and bandwidth aperture efficiency product (BAEP) increased from 34.24 to 55.78% and 55.024 to 109.33%2 , respectively.

AB - Near field phase transformation lattice structure is presented to correct the electric field phase variation above a source antenna. A high gain resonant cavity antenna (RCA) is used as a source, which operates at 12 GHz. The 3D printed phase transformation structure, with two different arrangements of the unit cells, is designed above the RCA at the one-eighth of wavelength. The rectangular arrangement exhibits a more uniform field distribution than that of the circular arrangement. Additionally, in the rectangular arrangement, the gain of the antenna is enhanced by 2.11dB from 21.98 to 24.09 dBi, whereas in the circular arrangement, this value increased by 2.08 dB from 21.98 to 24.06 dBi. For both the cases, the aperture efficiency and bandwidth aperture efficiency product (BAEP) increased from 34.24 to 55.78% and 55.024 to 109.33%2 , respectively.

KW - Near Field Transformation Lattice

KW - 3D printing

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BT - Proceedings of the 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA)

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Shrestha S, Mohamadzade B, Baba AA, Hashmi RM. Effect of unit cell arrangements in near field transformation lattice on aperture efficiency of resonant cavity antenna. In Proceedings of the 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). 2019. p. 0370-0371 doi: 10.1109/ICEAA.2019.8878923

Effect of unit cell arrangements in near field transformation lattice on aperture efficiency of resonant cavity antenna

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