Zobrazeno 1 - 10
of 31 814
pro vyhledávání: '"Dipole antenna"'
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 18, Iss 10, Pp 731-747 (2024)
Abstract Ultra‐wideband (UWB) systems utilise a broad frequency spectrum to achieve high data transmission rates and enhanced precision, creating a demand for specialised UWB antennas. Circularly Polarised (CP) antennas are considered essential for
Externí odkaz:
https://doaj.org/article/99df74f9885448eea653500e58055532
Autor:
Amir Siahcheshm
Publikováno v:
مهندسی مخابرات جنوب, Vol 13, Iss 52, Pp 65-80 (2024)
This paper presents a circularly polarized (CP) printed crossed-dipole antenna for Global Positioning System (GPS) receptions in the L1 (1575 MHz) band. Its structure consists of two orthogonally printed dipoles, two integrated baluns to feed the dip
Externí odkaz:
https://doaj.org/article/5ffd4405fdfc48e5b23453c9e6a4274f
A Low-Profile Stacked ME Dipole Antenna Loaded With High-Permittivity Dielectric for 5G Applications
Publikováno v:
IEEE Access, Vol 12, Pp 125544-125556 (2024)
A wideband stacked magnetoelectric (ME) dipole antenna with a microstrip line aperture-coupled excitation (MLACE) consisting of a bow-tie-shaped slot and a mounted high- permittivity substrate as a dielectric resonator (DR) is proposed. The bow-tie-s
Externí odkaz:
https://doaj.org/article/713fb7ea48714f21a930c449c7e9bdc2
Autor:
Yun Gao, Wu Sheng Ji
Publikováno v:
IEEE Access, Vol 12, Pp 117170-117175 (2024)
In this letter, a wideband high-gain magneto-electric dipole (ME-dipole) antenna is proposed. A novel director is loaded above the ME-dipole antenna with a horn-like reflector, and a microstrip-line aperture-coupled feed structure is used to excite t
Externí odkaz:
https://doaj.org/article/73fff3ef5297454eafe91bae84cdf098
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 3, Pp 612-619 (2024)
In this letter, a circularly-polarized (CP) log-periodic dipole antenna (LPDA) is investigated. Eight crossed dipole cells with a logarithmically increased $\lambda $ /8 separation are employed to form the proposed CP LPDA. The dipoles with increased
Externí odkaz:
https://doaj.org/article/96d6900cb9c1419a99e991544193d4c0
Publikováno v:
IEEE Access, Vol 12, Pp 70501-70511 (2024)
Radiation characteristics of a multiple dipole antenna immersed in a cold homogeneous magnetoplasma are considered. The antenna consists of phased electric dipoles which have a common geometric center and make a certain angle to one another. Each dip
Externí odkaz:
https://doaj.org/article/339dd1c4775f47a180c924f027885421
Publikováno v:
IEEE Access, Vol 12, Pp 67209-67218 (2024)
In order to achieve sufficient penetration depth, the antennas for through-wall radar require low operating frequency, small size, and high gain. In this paper, an ultra-wideband and low-cost magneto-electric (ME) dipole antenna operating in the S-ba
Externí odkaz:
https://doaj.org/article/44ec15c2187347d0a2e4e188d5c2e94d
Autor:
Qian Tan, Kwai-Man Luk
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 1, Pp 104-111 (2024)
A dual-linearly polarized (DLP) magneto-electric (ME) dipole antenna is proposed for the in-band full-duplex (IBFD) application. It is formed by ME dipoles with a shared central part, giving a compact and symmetrical antenna structure. It has four is
Externí odkaz:
https://doaj.org/article/a2da10a6098848f49472b06204eaeeec
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 1, Pp 82-89 (2024)
This paper presents a dual-band shared-aperture antenna array using a filtering magnetoelectric (ME) dipole antenna for the application of mobile-communication base station. It is realized by interleaving a lower-band (LB) filtering ME dipole antenna
Externí odkaz:
https://doaj.org/article/7dbb40bf9f2f4254972bfdb657dbe556
Autor:
Zina Fadel Kahdim, Kamal M. Abood
Publikováno v:
Al-Mustansiriyah Journal of Science, Vol 35, Iss 1 (2024)
Radiofrequency interference (RFI) describes the weakening of radio astronomy transmissions caused by man-made radio signal noise in radio telescope observation indicates the level of radio frequency noise in the sky at all times, regardless of any as
Externí odkaz:
https://doaj.org/article/6a499aeb25714703963a4069ccee0381