Compact Via-Coupling Fed Monopulse Antenna With Orthogonal Tracking Capability in Radiation Pattern

Khatami, Seyed Amin; Meiguni, Javad Soleiman; Elahi, Ali Amn-e; Rezaei, Pejman

doi:10.1109/lawp.2020.3005023

Cited by 28 publications

(29 citation statements)

References 9 publications

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“…The coupling could be useful in EM engineering applications, such as when designing a feeding structure. [ 4 ] Nowadays, electric devices are supposed to be designed in a compact manner and be able to integrate with other devices. The miniaturization of antenna structures is one method to realize integrated devices.…”

Section: Introductionmentioning

confidence: 99%

Design of a Transparent System for Mutual Coupling Reduction of Microstrip Array Antennas with Confined Water

Rohaninezhad

Ghayekhloo

Afsahi

et al. 2022

Physica Status Solidi (a)

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Herein, a new method for minimizing mutual coupling of an antenna array with confined water is proposed. In multiantenna systems, mutual coupling reduction is needed to sustain array signal processing efficiency. There are currently a variety of ways to suppress coupling, including defected ground, electromagnetic (EM) bandgaps, and advanced structures. The water absorption characteristic is devised in this innovative approach to minimize mutual coupling without a permanent alteration in the structure. Surface current between two antennas is cancelled using permittivity and water depth in a new configuration. A plexi‐glass confined water is added between the propagating elements to achieve this aim. The rectangular microstrip patch of transparent conducting components serves as the antenna array. Using scattering theories, numerical EM calculations, and anechoic chamber tests, the suggested technique shows a 15 dB decrease in coupling at center frequency (7 GHz). Other propagating functions have also been improved. The suggested framework can be used in multifunction communication networks, aerial vehicle antennas, solar panels, and naval communications because of its optical transparency.

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Section: Introductionmentioning

confidence: 99%

Design of a Transparent System for Mutual Coupling Reduction of Microstrip Array Antennas with Confined Water

Rohaninezhad

Ghayekhloo

Afsahi

et al. 2022

Physica Status Solidi (a)

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“…4,5 Cavity backing with various shapes of dipoles was explored with 3 dB beamwidth ≤105°. [6][7][8][9] Different tracking antennas were reported in references [10][11][12][13][14][15][16][17][18][19]. Although microstrip antennas have a low profile, their use is restricted due to their low-power handling capability.…”

Section: Introductionmentioning

confidence: 99%

“…Although microstrip antennas have a low profile, their use is restricted due to their low-power handling capability. [10][11][12]18,19 A 2 × 2 array of cross dipoles was reported with a 3 dB beamwidth of 54°and a quarter wavelength profile. 13 The profiles and footprints are several wavelengths in references [14][15][16][17], although they have high-power handling capability.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Different tracking antennas were reported in references [10–19]. Although microstrip antennas have a low profile, their use is restricted due to their low‐power handling capability 10–12,18,19 . A 2 × 2 array of cross dipoles was reported with a 3 dB beamwidth of 54° and a quarter wavelength profile 13 .…”

Section: Introductionmentioning

confidence: 99%

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Lower profile high‐power dual‐polarized wide‐beam tracking antenna at S‐band

Chakrabarti

Sadhukhan

Chakraborty

et al. 2022

Micro & Optical Tech Letters

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An S‐band dual linearly polarized monopulse tracking antenna has been developed with a cavity‐backed cross‐dipole antenna as the element. Wide‐beam and wideband tracking have been successfully demonstrated. Systematic design approaches have been presented. The cavity arrangement enhances the beamwidth of a horizontal dipole significantly retaining its wideband characteristics. The element exhibits a 3 dB beamwidth ≥145°. Such a wide beamwidth made the cavity‐backed cross dipole an attractive choice as the element for the tracking antenna. The monopulse antenna demonstrates an impedance bandwidth ≥20.7% with isolation superior to 24 dB. Dual polarized tracking has been effectively verified over ≥15% bandwidth with a broad‐side gain of 11.2 dBi. The angular field‐of‐view (FOV) for the tracking is ≥60°. Higher tracking bandwidth and wider FOV of the array, lower profile, and high‐power handling capability are the superiority of the developed antenna.

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Studying superposition of multiple orbital angular momentum modes for beam concentration using circular arrays for long‐range communication

Daronkola

Hamedani

Rezaei

et al. 2022

Int J RF Mic Comp-Aid Eng

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The most important limitation in using orbital angular momentum (OAM) multiplexing in communication is the range, so that because of OAM beam propagation, it cannot be used in the long range. It was found that when several original OAM modes were superimposed together, the concentrated EM wave in a certain angular range, with its effective phase diagram, could constitute a new quasi-OAM (QOAM) mode. In this article, the superposition of multiple OAM modes for beam concentration using uniform circular array is presented to in order to realize long-range communication. The simulation results show that the orthogonality characteristic of the two QOAMs produced by the proposed method is more than 10 decibels.

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Compact Via-Coupling Fed Monopulse Antenna With Orthogonal Tracking Capability in Radiation Pattern

Cited by 28 publications

References 9 publications

Design of a Transparent System for Mutual Coupling Reduction of Microstrip Array Antennas with Confined Water

Design of a Transparent System for Mutual Coupling Reduction of Microstrip Array Antennas with Confined Water

Lower profile high‐power dual‐polarized wide‐beam tracking antenna at S‐band

Studying superposition of multiple orbital angular momentum modes for beam concentration using circular arrays for long‐range communication

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