Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Suleyman Kuzu"'
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 19:193-197
In this letter, nonuniform period time-modulated arrays (NTMAs) are investigated and analyzed in terms of radiated power at harmonics, and a more general and accurate closed-form expression is derived. Although there are some studies on the radiated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec4a929dc50aa9b78143bd79dcaf5740
https://doi.org/10.1109/lawp.2019.2957528
https://doi.org/10.1109/lawp.2019.2957528
In this study, the synthesis of the time-modulated array (TMA) has been analyzed in terms of both the enhancement of the intended harmonic component and the steering capability of this harmonic. In order to accomplish the radiation pattern at desired
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72523864d37b5925728dd08ad86d5057
https://avesis.gazi.edu.tr/publication/details/eb3ad342-bbc1-4361-8784-482cf06d88cd/oai
https://avesis.gazi.edu.tr/publication/details/eb3ad342-bbc1-4361-8784-482cf06d88cd/oai
Autor:
Suleyman Kuzu, Nursel Akcam
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 16:1020-1023
A novel multiband antenna was designed and manufactured by blending a fractal shape and defected ground structure achieving superior performances yet within a slight architecture that makes this design a perfect fit for geostationary satellite commun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f25349462294bf3e844e745510c4ea4
https://doi.org/10.1109/lawp.2016.2616944
https://doi.org/10.1109/lawp.2016.2616944
Publikováno v:
2019 27th Telecommunications Forum (TELFOR).
In this work, an approach based on nonuniform period variable pulse amplitude (VPA) switching strategy for pattern synthesis in time modulated arrays is presented. The approach utilizes optimization of on-time durations, switching frequencies and wav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a636a33232292b3a76a4b6ef9bd2e0a
https://doi.org/10.1109/telfor48224.2019.8971106
https://doi.org/10.1109/telfor48224.2019.8971106
Publikováno v:
2019 11th International Conference on Electrical and Electronics Engineering (ELECO).
In time modulated array (TMA), harmonic radiations, which causes a decrease in efficiency, occurs in multiples of the modulation frequency in addition to the main radiation due to the implementation of RF switches. In this study, a new sinusoidal bea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::454480576bd5453a5b8f45a7294e7520
https://doi.org/10.23919/eleco47770.2019.8990503
https://doi.org/10.23919/eleco47770.2019.8990503
Publikováno v:
2019 11th International Conference on Electrical and Electronics Engineering (ELECO).
The major disadvantage of TMAs is the sideband radiations (SR) which occur at different frequencies in addition to the main frequency caused by periodic switches. These radiations bring about some critical problems which are needed to be handled such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37d19c8f8368140da35422bdd1db86c1
https://doi.org/10.23919/eleco47770.2019.8990459
https://doi.org/10.23919/eleco47770.2019.8990459
Time Modulated Arrays (TMA) use radio frequency (RF) switches, which are simpler and cheaper than traditional phase shifters for the beamforming. Because of the RF switches, in addition to the main radiation, the harmonic components, which affect the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c5d7f18d1c63c3da024385e13dbf56f
https://avesis.gazi.edu.tr/publication/details/06dbc954-d673-4b09-a394-65c61c52c9f1/oai
https://avesis.gazi.edu.tr/publication/details/06dbc954-d673-4b09-a394-65c61c52c9f1/oai
Publikováno v:
2017 18th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF) Book of Abstracts.
In this study, the response of a recently proposed fractal structure namely Apollonius Circles to an incident plane wave is addressed in terms of resonance frequencies, bandwidth and stability at oblique incidence. Although the base structure has bee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cf19f62bd22f76bd699c379934d2565
https://doi.org/10.1109/isef.2017.8090695
https://doi.org/10.1109/isef.2017.8090695