Results 11 to 20 of about 803,402 (286)
Optimal dimensions and performance evaluation of a truncated spherical dielectric lens antenna at X-band frequencies. [PDF]
PLoS ONEThis study presents the design and development of a truncated spherical dielectric lens antenna. The primary goal of this research is to significantly improve and optimize the directivity and beamwidth characteristics of the feed antenna by adjusting the
Syed Zeeshan Ali +6 more
doaj +2 more sources
A design of lens antenna with high gain [PDF]
MATEC Web of Conferences, 2021 In this paper, A lens antenna with high gain is proposed. The antenna is composed of the microstrip antenna and the hemisphere dielectric lens, and the lens is loaded on the top. The polyethylene is used to fabricated the hemisphere dielectric lens.
Gao Darong
doaj +1 more source
Optically transparent UWB antenna for wireless application & energy harvesting [PDF]
, 2012 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Transparent UWB antennas have been the focus of this PhD research.
Peter, Thomas
core +7 more sources
Reconfigurable wideband patch antenna for cognitive radio [PDF]
, 2009 Cognitive radio communication is envisaged to be a new paradigm of methodologies for enhancing the performance of radio communication systems through the efficient utilization of radio spectrum.
AbuTarboush, HF +14 more
core +4 more sources
2 × 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band
IEEE Open Journal of Antennas and Propagation, 2023 A $2\times2$ lens array provides a half reduction of antenna height compared to the twice-diameter single-feed lens antenna with an almost similar gain performance due to the same aperture size.
Bazilah Baharom +6 more
doaj +1 more source
3D Printed Extended Lens as a Button Antenna for Off-Body Links at 60 GHZ [PDF]
, 2022 This paper presents a 3D printed extended hemispherical lens antenna for Body Centric Communications in 60 GHz band. The prototype consists of a 3D printed lens made of Polylactic Acid with three planar broadside patch antenna elements used as a source ...
Budimir, D., Basu, A.
core +1 more source
Lightweight 3D-Printed Fractal Gradient-Index Lens Antenna with Stable Gain Performance
Fractal and Fractional, 2022 This paper proposes a millimeter-wave lens antenna using 3-dimensional (3D) printing technology to reduce weight and provide stable gain performance.
Yeonju Kim +3 more
doaj +1 more source
Power Profile-Based Antenna Selection for Millimeter Wave MIMO With an All-Planar Lens Antenna Array
IEEE Access, 2021 Lens antenna arrays can significantly reduce the number of radio frequency (RF) chains and provide a cost-effective beamforming approach to millimeter-wave massive multiple-input multiple-output (MIMO) systems.
Qianyun Zhang +4 more
doaj +1 more source
Wide-band planar inverted-F antenna for cognitive radio [PDF]
, 2009 A wide-band Planar Inverted-F Antenna (PIFA) is presented. The proposed antenna is simply structured consist of main patch supported by shorting wall and shorting pin, fed by 50 ohm microstrip transmission line. The antenna achieves an enhanced impedance
AbuTarboush, HF +3 more
core +6 more sources
IEEE Access, 2023 This paper presents a 3D-printed hemispherical lens integrated with a planar ultra-wideband (UWB) antenna. The flower-shaped stub slot UWB antenna is made of 0.8-mm FR-4. The operating frequency of the UWB covers 3.10 GHz – 11.6 GHz with a nominal
Nonchanutt Chudpooti +6 more
doaj +1 more source