Zobrazeno 1 - 10
of 773
pro vyhledávání: '"Varactor diode"'
Publikováno v:
IEEE Access, Vol 12, Pp 89726-89734 (2024)
In this paper, the application of the stepped impedance synthesis technique in the design of tunable wideband substrate integrated waveguide (SIW) Chebyshev filters is explored. By employing Chebyshev transfer functions and stepped impedances, achiev
Externí odkaz:
https://doaj.org/article/6e51142fdb5f4c8d9e49cccb92b5337b
Publikováno v:
IEEE Access, Vol 12, Pp 57443-57457 (2024)
Electronically tuned bandpass filters are crucial frequency-selective devices in tunable RF front-ends and are extensively utilized in the fields of communications and sensing. For low-cost and easy integration, varactor based tunable microstrip filt
Externí odkaz:
https://doaj.org/article/9ca0b8f54f194b0dacfb8a80f8fd0654
Publikováno v:
Alexandria Engineering Journal, Vol 79, Iss , Pp 402-410 (2023)
This paper presents a planar CPW-fed Ultrawideband (UWB) antenna with two independently tunable notch bands. The proposed design consists of a modified Rhombus-shaped monopole structure that is integrated with a dual band-stop filter based on hexagon
Externí odkaz:
https://doaj.org/article/34cac5813ef342329e720dcd09c26a6e
Autor:
Eichler, Alexander, author, Zilberberg, Oded, author
Publikováno v:
Classical and Quantum Parametric Phenomena, 2023, ill.
Externí odkaz:
https://doi.org/10.1093/oso/9780192862709.003.0012
Publikováno v:
IEEE Access, Vol 11, Pp 29614-29634 (2023)
Recently reconfigurable intelligent surface (RIS) has attracted great attention because it can create a smart wireless environment. Hence it can enhance the capacity and coverage of the wireless network significantly. A thorough review of RISs has be
Externí odkaz:
https://doaj.org/article/e7c1668171c54d1e9e2bc2e91a3c24b7
Publikováno v:
Journal of Sensor and Actuator Networks, Vol 13, Iss 1, p 8 (2024)
In this article, a tunable RF sensor is presented for the measurement of dielectric materials (liquids and solids) based on a metamaterial resonator. The proposed novel configuration sensor has a microstrip line-loaded metamaterial resonator with tun
Externí odkaz:
https://doaj.org/article/2775bb1903284af4a36e31c3d3bf1c15
Akademický článek
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Publikováno v:
IEEE Access, Vol 10, Pp 96788-96797 (2022)
This paper proposes a reconfigurable dual-band bandpass filter with independently tunable center frequencies that is intended to be integrated into reconfigurable multiband global navigation satellite system receivers. The center frequencies can be a
Externí odkaz:
https://doaj.org/article/0551600ae0d24e7887ab3da9942a2a3e
Autor:
J. A. I. Araujo, M. R. T. Oliveira, P. H. B. Cavalcanti Filho, C. P. N. Silva, M. S. Coutinho, M. T. de Melo, Ignacio Llamas-Garro, A. G. Barboza
Publikováno v:
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 20, Iss 4, Pp 834-854 (2021)
Abstract This paper presents a compact and planar reconfigurable filtenna for application in Wireless systems. The filtenna is composed of a UWB circular antenna and a filter with two trapezoidal resonators. The filter is integrated on the antenna fe
Externí odkaz:
https://doaj.org/article/e2f9365e9e8d4402970bf3703b76ebdc
Akademický článek
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