X-band waveguide filtering antenna array with nonuniform feed structure

Fu Chang Chen; Jian Feng Chen; Qing Xin Chu; Michael J. Lancaster

doi:10.1109/TMTT.2017.2705697

X-band waveguide filtering antenna array with nonuniform feed structure

Fu Chang Chen, Jian Feng Chen^*, Qing Xin Chu, Michael J. Lancaster

^*Corresponding author for this work

Electronic, Electrical and Systems Engineering

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

This paper proposes a novel design approach for a filtering antenna, which contains an array of 4 by 2 waveguide aperture radiation elements. Coupling matrix theory is introduced in this paper to synthesize the multiple coupled-resonators circuit. Unequal amplitude excitation is applied to the 4×2 elements so as to obtain a low sidelobe level. To demonstrate the concept, an X-band antenna array is designed and fabricated using a three-layer waveguide structure.Measured results show that the filtering antenna array can achieve a gain of more than 15.58 dBi and a radiation efficiency of higher than 90% over the passband (9.91-10.1 GHz). The sidelobe level is-18.3 dB in the H-plane and-21.1 dB in the E-plane.

Original language	English
Article number	7936600
Pages (from-to)	4843-4850
Number of pages	8
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	65
Issue number	12
Early online date	31 May 2017
DOIs	https://doi.org/10.1109/TMTT.2017.2705697
Publication status	Published - 1 Dec 2017

Keywords

Coupling matrix
Filtering antenna
High efficiency
Low sidelobe
Unequal amplitude excitation

ASJC Scopus subject areas

Radiation
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TMTT.2017.2705697Licence: None: All rights reserved

http://ieeexplore.ieee.org/document/7936600/Licence: None: All rights reserved

Cite this

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title = "X-band waveguide filtering antenna array with nonuniform feed structure",

abstract = "This paper proposes a novel design approach for a filtering antenna, which contains an array of 4 by 2 waveguide aperture radiation elements. Coupling matrix theory is introduced in this paper to synthesize the multiple coupled-resonators circuit. Unequal amplitude excitation is applied to the 4×2 elements so as to obtain a low sidelobe level. To demonstrate the concept, an X-band antenna array is designed and fabricated using a three-layer waveguide structure.Measured results show that the filtering antenna array can achieve a gain of more than 15.58 dBi and a radiation efficiency of higher than 90% over the passband (9.91-10.1 GHz). The sidelobe level is-18.3 dB in the H-plane and-21.1 dB in the E-plane.",

keywords = "Coupling matrix, Filtering antenna, High efficiency, Low sidelobe, Unequal amplitude excitation",

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T1 - X-band waveguide filtering antenna array with nonuniform feed structure

AU - Chen, Fu Chang

AU - Chen, Jian Feng

AU - Chu, Qing Xin

AU - Lancaster, Michael J.

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N2 - This paper proposes a novel design approach for a filtering antenna, which contains an array of 4 by 2 waveguide aperture radiation elements. Coupling matrix theory is introduced in this paper to synthesize the multiple coupled-resonators circuit. Unequal amplitude excitation is applied to the 4×2 elements so as to obtain a low sidelobe level. To demonstrate the concept, an X-band antenna array is designed and fabricated using a three-layer waveguide structure.Measured results show that the filtering antenna array can achieve a gain of more than 15.58 dBi and a radiation efficiency of higher than 90% over the passband (9.91-10.1 GHz). The sidelobe level is-18.3 dB in the H-plane and-21.1 dB in the E-plane.

AB - This paper proposes a novel design approach for a filtering antenna, which contains an array of 4 by 2 waveguide aperture radiation elements. Coupling matrix theory is introduced in this paper to synthesize the multiple coupled-resonators circuit. Unequal amplitude excitation is applied to the 4×2 elements so as to obtain a low sidelobe level. To demonstrate the concept, an X-band antenna array is designed and fabricated using a three-layer waveguide structure.Measured results show that the filtering antenna array can achieve a gain of more than 15.58 dBi and a radiation efficiency of higher than 90% over the passband (9.91-10.1 GHz). The sidelobe level is-18.3 dB in the H-plane and-21.1 dB in the E-plane.

KW - Coupling matrix

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KW - Low sidelobe

KW - Unequal amplitude excitation

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X-band waveguide filtering antenna array with nonuniform feed structure

Abstract

Keywords

ASJC Scopus subject areas

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