Beam-Reconfigurable Antenna Based on Vector Modulator and Rotman Lens on LTCC

Autor: Sabin Kumar Karki, Mikko Varonen, Mikko Kaunisto, Arto Rantala, Markku Lahti, Antti Lamminen, Jan Holmberg, Mikko Kantanen, Juha Ala-Laurinaho, Ville Viikari

Publikováno v: IEEE Access, Vol 9, Pp 52872-52882 (2021)

A beam-switching array is designed using a $4\times 6$ Rotman lens as a beam-forming network to switch the beam towards −30°, −10°, 10°, and 30°. Six substrate integrated waveguide fed $1\times 4$ microstrip patch arrays are used as the radia

Externí odkaz: https://doaj.org/article/3b6fbf52f3834162a0d46cf498e5dd78

Beam-Reconfigurable Antenna Based on Vector Modulator and Rotman Lens on LTCC

Autor: Ville Viikari, Markku Lahti, Antti Lamminen, Sabin Kumar Karki, Mikko Varonen, Mikko Kaunisto, Mikko Kantanen, Juha Ala-Laurinaho, Arto Rantala, Jan-Erik Holmberg

Publikováno v: Karki, S K, Varonen, M, Kaunisto, M, Rantala, A, Lahti, M, Lamminen, A, Holmberg, J, Kantanen, M, Ala-Laurinaho, J & Viikari, V 2021, ' Beam-Reconfigurable Antenna Based on Vector Modulator and Rotman Lens on LTCC ', IEEE Access, vol. 9, pp. 52872-52882 . https://doi.org/10.1109/ACCESS.2021.3070037
IEEE Access, Vol 9, Pp 52872-52882 (2021)

Funding Information: This work was supported in part by the Business Finland through 5WAVE Project, and in part by the Academy of Finland through ADENN Project. The work of Sabin Kumar Karki was also supported in part by the Nokia Foundation, and in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a046eadaea17fb34172e383a20e62aea
https://doi.org/10.1109/ACCESS.2021.3070037

Positioning of orthogonally-polarized waveguide probes for near-field antenna measurement

Autor: Ville Viikari, Juha Ala-Laurinaho, Ari Alanne, Paul Moseley, Massimiliano Simeoni, Sabin Kumar Karki

Publikováno v: 2021 15th European Conference on Antennas and Propagation (EuCAP).

In planar near-field antenna measurement, the full polarization characterization time of an antenna-under-test can be shortened by simultaneously using orthogonally-polarized probes. This paper discusses the positioning of two orthogonally-polarized

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2a09b34d8f6f79d240a15da2f0d228f1
https://doi.org/10.23919/eucap51087.2021.9411114

Effect of mutual coupling between feed elements on integrated lens antenna performance

Autor: Risto Valkonen, Ville Viikari, Juha Ala-Laurinaho, Sabin Kumar Karki

Publikováno v: IET Microwaves, Antennas & Propagation. 12:1649-1655

An integrated lens antenna (ILA) equipped with a beam-switching array feed provides beam-steering. This study investigates the effects of the mutual coupling between the feed array elements on the ILA performance. A simulation study of an ILA with tw

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c53b893d242203473d08822b4ce54cab
https://doi.org/10.1049/iet-map.2017.1082

Millimeter-wave stepped series array with LTCC

Autor: Sabin Kumar Karki, Markku Lahti, Juha Ala-Laurinaho, Jianfang Zheng, Ville Viikari

Publikováno v: Karki, S K, Ala-Laurinaho, J, Zheng, J, Lahti, M & Viikari, V 2019, Millimeter-wave stepped series array with LTCC . in 2019 49th European Microwave Conference, EuMC 2019 ., 8910765, IEEE Institute of Electrical and Electronic Engineers, pp. 956-959, 49th European Microwave Conference, EuMC 2019, Paris, France, 1/10/19 . https://doi.org/10.23919/EuMC.2019.8910765
Aalto University

The series fed antenna arrays are widely used to minimize the feeding losses. A novel method to control the coupling/admittance between the series array elements is studied. In this work, two substrate integrated waveguide (SIW) fed aperture coupled

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19e7444af8d50cba614815e5cb937a4f
https://aaltodoc.aalto.fi/handle/123456789/42549