Results 71 to 80 of about 611 (173)

Circularly Polarized Periodic Leaky-Wave Antenna Based on Dielectric Image Line for Millimeter-Wave Radar Applications [PDF]

open access: yes, 2022
S.938-942In this letter, a novel design of a circularly polarized dielectric image line (DIL) based periodic leaky-wave antenna (P-LWA) is presented, which is comprised of only dielectric radiation discontinuities, side gratings, and inclined slots.
Heberling, D.   +2 more
core   +1 more source

Design and Analysis of Sierpinski Fractal Antennas for Millimeter‐Wave 5G and Ground‐Based Radio Navigation Applications

open access: yesTransactions on Emerging Telecommunications Technologies, Volume 35, Issue 11, November 2024.
This study comprises distinct sections: abstract, introduction, and review of related papers. It delves into design and simulation, utilizing tools like CST, VNA, power sensors, and spectrum analyzers. Verification is conducted through diverse angles of radiation measurement. The research employs a comprehensive approach to advance understanding in the
Arun Raj, Durbadal Mandal
wiley   +1 more source

Dispersion reduced SIW leaky-wave antenna by loading metasurface prism [PDF]

open access: yes, 2018
Leaky-wave antennas (LWAs) are well-known for the high directivity, wide impedance bandwidth, and the beam-scanning performance with frequency. However, in the system that requires high-speed data transfer, wide system band and high directivity, LWAs are
Wang, Lei,   +8 more
core   +1 more source

Null‐depth coordinated synthesis design approach to azimuthal null frequency scanning antennas

open access: yesIET Microwaves, Antennas &Propagation, Volume 18, Issue 10, Page 763-770, October 2024.
A novel synthesis design approach to multimode resonant, azimuthal null frequency scanning antennas (ANFSAs) coordinated by null‐depth is presented. The antenna is composed of a principal radiator and an auxiliary one fed by an unequal‐split power divider.
Xiao‐Hui Mao   +3 more
wiley   +1 more source

Modulated strip-line leaky-wave antenna using a printed grating lens and a surface-wave source [PDF]

open access: yes, 2010
A planar antenna that utilize surface waves (SWs) for leaky wave (LW) excitation is investigated. Specifically, a surface-wave launcher (SWL) is employed to excite cylindrical SWs which are bound to a grounded dielectric slab (GDS).
Al P. Freundorfer   +9 more
core   +1 more source

Mechanically scanned leaky-wave antenna based on a topological one-way waveguide [PDF]

open access: yes, 2020
We propose a uniform backfire-to-endfire leaky-wave antenna (LWA) based on a topological one-way waveguide under external bias magnetic field. We systematically analyze the dispersion, showing that the proposed structure supports leaky mode arisen from ...
You, Yun   +8 more
core   +1 more source

Single-Beam Leaky-Wave Antenna With Lateral Continuous Scanning Functionality Based on Spoof Surface Plasmon Transmission Line

open access: yesIEEE Access, 2019
A continuous beam scanning leaky-wave antenna (LWA) supporting lateral radiation is proposed in this paper. It is based on a spoof surface plasmon (SSP) transmission line (TL) which is a single-layer conductor structure.
Leilei Liu   +4 more
doaj   +1 more source

Wideband multibeam mushroom antenna array with low‐temperature cofired ceramic‐integrated pillbox transition for millimetre‐wave applications

open access: yesIET Microwaves, Antennas &Propagation, Volume 18, Issue 4, Page 188-195, April 2024.
This paper presents a wideband LTCC‐integrated multibeam array antenna based on an optical pillbox system and a mushroom radiating array. A novel unit model method is used to predict the performance of the PPW‐type component with an electrically large size.
Bin Yuan   +5 more
wiley   +1 more source

A Leaky-Wave Antenna Array With Beam-Formed Radiation Pattern for Application in a Confined Space

open access: yesIEEE Access, 2019
A substrate integrated waveguide (SIW) leaky-wave antenna (LWA) array with beam-formed radiation pattern is investigated in this paper. The array is composed of two LWA elements with different parameters of slots.
Yunjie Geng   +5 more
doaj   +1 more source

A W‐band long‐slot array antenna with two‐dimensional beam‐scanning capability

open access: yesIET Microwaves, Antennas &Propagation, Volume 18, Issue 4, Page 231-238, April 2024.
A W‐band long‐slot array antenna, with 2‐dimensional beam‐scanning capability, is studied, designed, and validated by measurements. This antenna, containing a one‐dimensional long‐slot array, a parabolic reflector, and multiple feeding ports, has a pass band from 85 to 102.8 GHz.
Tianye Ma   +4 more
wiley   +1 more source

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