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A Closed-Form Analytical Evaluation of the Directivity of Planar Array Antennas with Different Types of Radiating Elements [PDF]

open access: yesSensors
This work presents a fast and general formulation for the directivity computation of planar antenna arrays composed of radiating elements modeled as cosqθ transmitters.
Margaux Pellet   +2 more
doaj   +2 more sources

Application of the principle of collapsed distributions to the detection of faulty elements in square grid antenna arrays [PDF]

open access: yesScientific Reports
The following paper presents an application of the principle of collapsed distributions to the diagnosis of square grid planar antenna arrays. The principle states that each azimuthal cut of a planar array pattern (array factor), with $$\phi = \phi _o$$ ,
David Michael Parkinson-Oreiro   +3 more
doaj   +2 more sources

Asymmetric Shaped-Pattern Synthesis for Planar Antenna Arrays [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2016
A procedure to synthesize asymmetrically shaped beam patterns is developed for planar antenna arrays. As it is based on the quasi-analytical method of collapsed distributions, the main advantage of this procedure is the ability to realize a shaped (null ...
T. M. Bruintjes   +2 more
doaj   +3 more sources

Investigation of Planar Isolators for Mutual Coupling Reduction in Two-Dimensional Microstrip Antenna Arrays

open access: yesInternational Journal of Antennas and Propagation, 2023
The design of isolators to reduce mutual coupling in large two-dimensional antenna arrays is complex and requires significant computational effort. This work attempts to alleviate this problem by applying different types of planar isolators in different ...
Ruowei Yin, Zhipeng Wu
doaj   +1 more source

A Wideband L-Probe Fed Conformal Antenna Array Using Metasurface

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
A wideband conformal metasurface (MTS) antenna array with high gain is designed in this paper. The cooperation of the MTS and L-probe feeding of the antenna element realizes a wide bandwidth of 28.1%, which exhibits only one resonant mode.
S. Huang   +7 more
doaj   +1 more source

A New and Simple Design Method for End-Fire Dipole Antenna Array and Three Two-Element 24 GHz Planar End-Fire Dipole Antenna Arrays

open access: yesApplied Sciences, 2021
For an RF system, a high-gain antenna helps to improve the equivalent isotropic radiated power (EIRP) of the transmitter and an end-fire antenna array helps to improve the directivity (D) and half power beam width (HP) of the antenna.
Yanfei Mao, Shiju E, Chungeng Zhu
doaj   +1 more source

A new optimized quadrant pyramid antenna array structure for back lobe minimization of uniform planar antenna arrays

open access: yesAlexandria Engineering Journal, 2022
In this paper, a new optimized quadrant pyramid antenna array (O-QPAA) structure is proposed for back lobe minimization of planar antenna arrays (PAA). Based on the PAA size, it is thought to be formed of a number of concentric co-planar squared antenna ...
Heba S. Dawood   +3 more
doaj   +1 more source

Detection of Failures in Antenna Arrays Through a Lebesgue-Space Approach

open access: yesIEEE Open Journal of Antennas and Propagation, 2022
In this paper, a novel antenna array diagnostic approach is presented. The failures in antenna arrays are detected by means of a non-Hilbertian Lebesgue-space $L^{p}$ technique to solve the underlying inverse problem.
Valentina Schenone   +4 more
doaj   +1 more source

A New Beamforming Technique for the Synthesis of Uniform Circular Antenna Arrays Using Reduced Number of Antenna Elements

open access: yesIEEE Access, 2021
The number of elements reduction in different antenna array configurations such as linear, circular, rectangular, planar, and non-planar is of main concern for several research groups.
Lamia Mohammed Alnaggar   +2 more
doaj   +1 more source

Redefinable planar microwave passive electronics enabled by thermal controlled VO2/Cu hybrid matrix

open access: yesiScience, 2022
Summary: A planar microwave array device with complex electromagnetic functional reconfigurability is demonstrated by means of phase transition film VO2 to manipulate the electromagnetic distribution.
Lei Sang   +9 more
doaj   +1 more source

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