Substrate Integrated Waveguide Filtenna With Two Controllable Radiation Nulls

In this paper, a novel substrate integrated waveguide (SIW) filtenna with two controllable radiation nulls is proposed, which has the advantage of good radiation characteristics. Radiation nulls are generated by electric and magnetic mixed coupling structure and fundamental mode, respectively. And a...

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Main Authors: Chuanyun Wang, Xin Wang, Haiwen Liu, Zhijiao Chen, Zhiwen Han
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9130143/
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author Chuanyun Wang
Xin Wang
Haiwen Liu
Zhijiao Chen
Zhiwen Han
author_facet Chuanyun Wang
Xin Wang
Haiwen Liu
Zhijiao Chen
Zhiwen Han
author_sort Chuanyun Wang
collection DOAJ
description In this paper, a novel substrate integrated waveguide (SIW) filtenna with two controllable radiation nulls is proposed, which has the advantage of good radiation characteristics. Radiation nulls are generated by electric and magnetic mixed coupling structure and fundamental mode, respectively. And a quasi-elliptic characteristic can be obtained at the boresight gain direction. By changing the length of perturbation slot and the strength of electric coupling and magnetic coupling, the position of radiation nulls can be controlled independetly. Compared to conventional filtenna, the proposed SIW filtenna has no extra filtering circuit to increase the dimension and complexity. Two resonant modes in the passband can be excited through loading electric and magnetic mixed coupling structure in one SIW cavity. The measured results are in good agreement with simulated results. The good frequency selectivity and out-of-band rejection are achieved. The proposed antenna exhibits a maximum realized gain of 5.8 dBi at the operating bandwidth. The measured impedance bandwidth is from 9.44 GHz to 9.68 GHz and the cross-polarization levels are lower than -20 dB in both planes.
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spelling doaj.art-e3adc3632e994c6d9a0a307b858b8d502022-12-21T20:17:10ZengIEEEIEEE Access2169-35362020-01-01812001912002410.1109/ACCESS.2020.30059489130143Substrate Integrated Waveguide Filtenna With Two Controllable Radiation NullsChuanyun Wang0Xin Wang1https://orcid.org/0000-0003-3425-3770Haiwen Liu2https://orcid.org/0000-0002-0393-8251Zhijiao Chen3https://orcid.org/0000-0003-4823-5450Zhiwen Han4School of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an, ChinaSchool of Information Engineering, East China Jiaotong University, Nanchang, ChinaSchool of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an, ChinaSchool of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, ChinaSchool of Information Engineering, East China Jiaotong University, Nanchang, ChinaIn this paper, a novel substrate integrated waveguide (SIW) filtenna with two controllable radiation nulls is proposed, which has the advantage of good radiation characteristics. Radiation nulls are generated by electric and magnetic mixed coupling structure and fundamental mode, respectively. And a quasi-elliptic characteristic can be obtained at the boresight gain direction. By changing the length of perturbation slot and the strength of electric coupling and magnetic coupling, the position of radiation nulls can be controlled independetly. Compared to conventional filtenna, the proposed SIW filtenna has no extra filtering circuit to increase the dimension and complexity. Two resonant modes in the passband can be excited through loading electric and magnetic mixed coupling structure in one SIW cavity. The measured results are in good agreement with simulated results. The good frequency selectivity and out-of-band rejection are achieved. The proposed antenna exhibits a maximum realized gain of 5.8 dBi at the operating bandwidth. The measured impedance bandwidth is from 9.44 GHz to 9.68 GHz and the cross-polarization levels are lower than -20 dB in both planes.https://ieeexplore.ieee.org/document/9130143/Substrate integrated waveguide (SIW) antennafiltennaelectric and magnetic mixed coupling
spellingShingle Chuanyun Wang
Xin Wang
Haiwen Liu
Zhijiao Chen
Zhiwen Han
Substrate Integrated Waveguide Filtenna With Two Controllable Radiation Nulls
IEEE Access
Substrate integrated waveguide (SIW) antenna
filtenna
electric and magnetic mixed coupling
title Substrate Integrated Waveguide Filtenna With Two Controllable Radiation Nulls
title_full Substrate Integrated Waveguide Filtenna With Two Controllable Radiation Nulls
title_fullStr Substrate Integrated Waveguide Filtenna With Two Controllable Radiation Nulls
title_full_unstemmed Substrate Integrated Waveguide Filtenna With Two Controllable Radiation Nulls
title_short Substrate Integrated Waveguide Filtenna With Two Controllable Radiation Nulls
title_sort substrate integrated waveguide filtenna with two controllable radiation nulls
topic Substrate integrated waveguide (SIW) antenna
filtenna
electric and magnetic mixed coupling
url https://ieeexplore.ieee.org/document/9130143/
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AT haiwenliu substrateintegratedwaveguidefiltennawithtwocontrollableradiationnulls
AT zhijiaochen substrateintegratedwaveguidefiltennawithtwocontrollableradiationnulls
AT zhiwenhan substrateintegratedwaveguidefiltennawithtwocontrollableradiationnulls