Results 41 to 50 of about 1,217 (218)
IEEE Open Journal of Antennas and Propagation, 2021 This paper reports on the design of frequency-dependent feed networks for linear antenna arrays with minimum half-power beamwidth (HPBW) variation in more than one octave of the frequency spectrum.
Dakotah J. Simpson, Dimitra Psychogiou
doaj +1 more source
28 GHz Switched Beam Vivaldi Antenna System for V2V Communication in 5G Applications [PDF]
Radioengineering, 2022 A 28GHz switched beam Vivaldi antenna system consisting of 4 Vivaldi antennas for V2V communication is presented. The proposed design is realized on a substrate material of “Rogers 5880” with ε_r=2.2,tanδ=0.002 and 0.508 mm substrate thickness.
A. M. Ameen +3 more
doaj
Resonant Tunneling Diode‐Integrated Terahertz Transceiver Module for Wireless Communications
Advanced Photonics Research, Volume 7, Issue 4, April 2026.Resonant tunneling diode‐enabled terahertz transceiver module. Terahertz bands are essential for next‐generation wireless communications, offering ultrabroad bandwidth and unprecedented data throughput. However, realizing compact, low‐cost, broadband, and efficient terahertz transceiver modules remains challenging.
Weijie Gao +12 more
wiley +1 more source
, 2021 Compact high-gain wideband antenna systems for through-the-wall imaging and wireless communications, featuring 160% fractional bandwidth, are presented.
Faraone, Antonio +4 more
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Scale‐Invariant Waveguiding in Flatland
Exploration, Volume 6, Issue 1, February 2026.The study introduces scale‐invariant metasurface waveguides with uniform modal field distribution and an effective index independent of the core width. By leveraging spatial symmetry and fine‐tuning mode profiles, the design is validated through near‐field measurements in the C band, offering potential applications in flat optics, sensing, and ...
Zhixia Xu +5 more
wiley +1 more source
Wideband reconfigurable antennas [PDF]
, 2011 The work described in this thesis concerns the combining of wideband and reconfigurable narrow band functionality into a single antenna. This concept may be useful in reducing size and to give flexibility to a wireless terminal to operate in several ...
Hamid, Mohamad Rijal
core
IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.In this paper, a Miniaturised Element Frequency Selective Surface (MEFSS) with unique resonance characteristics and significant practical implications is proposed. The structure, with a larger dimension, governs the reflection resonance at a higher frequency, whereas the minor one supports the reflection resonance at a lower frequency. The longer strip
Zhaoran Chen +3 more
wiley +1 more source
A New Antenna Capable of Generating Broadband Plane Spiral Orbital Angular Momentum
IEEE AccessThe plane spiral orbital angular momentum (PS-OAM), which is a special form of orbital angular momentum (OAM) beams, solves the problem of OAM beam divergence to some extent.
Na Li +3 more
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International Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.Half impulse radiating antenna (HIRA) is commonly used in high‐power ultrawideband (UWB) systems. These systems come under the class of Intentional Electromagnetic Interference (IEMI) systems, which are intended to generate intense electric fields (∼10 kV/m and above) in a far field range.
Sandeep Kumar Singh +6 more
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International Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.Microwave breast imaging has become a significant area of research due to the high incidence of breast cancer in women and the limitations of conventional detection methods. In recent years, this field has gained momentum as it offers improved detection rates and several advantages like it is nonionizing and safe, cost‐effective, portable and flexible,
Chinmoy Das +2 more
wiley +1 more source