Results 1 to 10 of about 67,964 (307)
Results in EngineeringThis study introduces a new technique for achieving dual-band functionality in a printed dipole antenna with integrated balun feeding without additional elements.
Rahim Barzegari +2 more
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Double-slot antennas on extended hemispherical dielectric lenses [PDF]
An investigation of the coupling efficiencies to a gaussian-beam of a double-slot antenna on a hyperhemispherical lens is presented. It is shown that both lenses couple equally well to an appropriate gaussian beam (about 80 percent).
Filipovic, Daniel F. +3 more
core +1 more source
Planar dielectric resonator stabilized HEMT oscillator integrated with CPW/aperture coupled patch antenna [PDF]
A new design of an active antenna with a dielectric resonator stabilized high electron mobility transistor (HEMT) oscillator (DRO) and an aperture-coupled patch antenna is reported.
Lee, Richard Q., Simons, Rainee N.
core +1 more source
IET Microwaves, Antennas & PropagationThe present article proposes a novel hybrid approach for addressing the synthesis problem of rectangular planar arrays under multiple constraints, through joint optimization of the weight function and the improved grey wolf optimization (IGWO) algorithm.
Kui Tao +4 more
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Deep Learning-Driven Beam-Steering for Dual-Polarized 28 GHz Antenna Arrays in 5G Wireless Networks
IEEE AccessThis study explores the development of a 28 GHz array antenna with beam-steering capability, consisting of four elements with dual linear polarization at ±45 degrees.
Siti Zainab M. Zainab Hamzah +5 more
doaj +1 more source
A new blind adaptive antenna array for GNSS interference cancellation [PDF]
, 2005 This paper introduces a new blind adaptive antenna array as a possible solution to the interference cancellation problem. This new technique is compared to three classical ones over two different sensor radiation patterns.
Carrie, Guillaume +4 more
core
Engineering antenna radiation patterns via quasi-conformal mappings
Optics Express, 2011 We use a combination of conformal and quasi-conformal mappings to engineer isotropic electromagnetic devices that modify the omnidirectional radiation pattern of a point source. For TE waves, the designed devices are also non-magnetic. The flexibility offered by the proposed method is much higher than that achieved with conformal mappings. As a result,
García Meca, Carlos +2 more
openaire +4 more sources
Millimeter‐wave end‐fire dual‐polarized frequency scanning antenna using LTCC technology
Electronics LettersThis letter proposes a millimeter‐wave dual‐polarized (DP) end‐fire frequency scanning antenna utilizing low temperature co‐fired ceramic (LTCC) technology.
Pengfei Yu +5 more
doaj +1 more source
A Wideband End-Fire Conformal Vivaldi Antenna Array Mounted on a Dielectric Cone
International Journal of Antennas and Propagation, 2016 The characteristics of a novel antipodal Vivaldi antenna array mounted on a dielectric cone are presented. By employing antipodal Vivaldi antenna element, the antenna array shows ultrawide bandwidth and end-fire radiation characteristics. Our simulations
Zengrui Li +5 more
doaj +1 more source
Electromagnetic scattering by impedance structures [PDF]
The scattering of electromagnetic waves from impedance structures is investigated, and current work on antenna pattern calculation is presented. A general algorithm for determining radiation patterns from antennas mounted near or on polygonal plates is ...
Balanis, Constantine A. +1 more
core +1 more source