Two-Pair Slots Inserted CP Patch Antenna for Wide Axial Ratio Beamwidth

Ray, Mrityunjoy Kumar; Mandal, Kaushik; Nasimuddin, Nasimuddin; Lalbakhsh, Ali; Raad, Raad; Tubbal, Faisel

doi:10.1109/access.2020.3043406

Cited by 21 publications

(11 citation statements)

References 24 publications

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“…Due to this the reported design has larger patch area and lower gain as well. Using diagonal slots on thinner substrate circular or rectangular patches, CP design offering higher AR beam width is reported [38][39][40]. However, those designs offer single band CP response with lower AR BW and thus cannot find applications in frequency and polarization agile systems.…”

Section: Parametric Design Formulation For Modified ψ-Shape Msamentioning

confidence: 99%

Dual Band Circularly Polarized Modified Ψ-Shape Microstrip Antenna

Deshmukh¹,

Odhekar²

2021

PIER C

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Single patch designs of a microstrip antenna with a U-slot or a pair of rectangular slots (E-shape) provide a single band circularly polarized response, and hence they are not useful in frequency and polarization agile applications. In this paper, a modified design of a Ψ-shape microstrip antenna is proposed for dual band and dual sense circularly polarized response. Use of unequal length rectangular slots in the modified patch optimizes the inter-spacing between the modified TM 21 and TM 22 resonant modes, surface current distributions and impedance levels at them to yield dual band circularly polarized response. An impedance bandwidth of 1992 MHz (37.05%) is obtained which completely covers the axial ratio bandwidth of 11.84 and 5.67%, in the two bands with a frequency ratio of 1.3 in between them, thereby satisfying the requirements of frequency agile systems. Over the impedance and axial ratio bandwidth, the antenna exhibits nearly broadside radiation pattern with a gain of around 7 dBi. A design methodology based on the simple parametric formulation is presented, which helps in realizing a similar antenna in the specific frequency band. The proposed antenna can find applications in frequency and polarization agile systems where the signal loss due to the interference and jamming can be reduced.

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Section: Parametric Design Formulation For Modified ψ-Shape Msamentioning

confidence: 99%

Dual Band Circularly Polarized Modified Ψ-Shape Microstrip Antenna

Deshmukh¹,

Odhekar²

2021

PIER C

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“…Recent approaches for enhancement of AR bandwidth in metallic antennas have employed two pair slots, as explained in Reference [21]. Alternatively, dielectric resonators with high-permittivity are known to support electric and magnetic resonances of different orders [8,10], in analogy with cylindrical nanostructures [18].…”

Section: Working Principle and Enhancement Of Arbwmentioning

confidence: 99%

“…In this communication, we demonstrate theoretically a new concept to produce integrated, highly efficient mm-wave CP antennas in which we employ metasurfaces [20,21]. These types of surfaces were proven useful for several applications, including gain enhancement [22] and phase rectifying [23].…”

Section: Introductionmentioning

confidence: 99%

Chiral Dielectric Metasurfaces for Highly Integrated, Broadband Circularly Polarized Antenna

Ferreira-Gomes

Oliveira

Mejía‐Salazar

2021

Sensors

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We report on the design of a low-profile integrated millimeter-wave antenna for efficient and broadband circularly polarized electromagnetic radiation. The designed antenna comprises a chiral dielectric metasurface built with a 2×2 arrangement of dielectric cylinders with slanted-slots at the center. A broadbeam high-gain with wide axial ratio (AR)<3 dB bandwidth was reached by pairing the electric and magnetic resonances of the dielectric cylinders and the slanted slots when excited by an elliptically polarized driven-patch antenna. This electric-magnetic pairing can be tuned by varying the cylinders diameter and the tilting and rotation angles of the slanted slots. The simulation results indicate impedance-matching bandwidths up to 22.6% (25.3–31.6 GHz) with 3-dB AR bandwidths of 11.6% (26.9–30.2 GHz), which in terms of compactness (0.95λ0×0.95λ0) and performance are superior to previous antenna designs. Since the simulations were performed by assuming materials and geometries easily implementable experimentally, it is hoped that circularly polarized antennas based on chiral metasurfaces can be integrated into 5G and satellite communications.

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“…CP antennas have become one of the research topics. During the past decade or so, many CP antennas have been studied 6–11 . In Reference 7, a CP patch antenna is proposed.…”

Section: Introductionmentioning

confidence: 99%

“…During the past decade or so, many CP antennas have been studied. [6][7][8][9][10][11] In Reference 7, a CP patch antenna is proposed. Although the profile is only 0.122λ 0 , the BW is narrow.…”

Section: Introductionmentioning

confidence: 99%

A circularly polarized low‐profile magnetoelectric dipole antenna

Zhao

2021

Micro & Optical Tech Letters

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In this article, we proposed a novel circularly polarized magnetoelectric (ME) dipole antenna with low profile, which is excited by substrate integrated waveguide aperture‐coupled feeding structure with a butterfly‐shaped slot. The ME dipole antenna is formed of a couple of oblong metallic patches with square corner cutting off and elliptic perturbation acting as electric dipole, and two couples of vertical metalized via holes working as magnetic dipole. The profile of the antenna is 0.122λ0. The antenna achieves a fractional bandwidth of 32.6% for |S11| smaller than −10 dB from 22.6 to 31.3 GHz and the 3‐dB axial‐ratio bandwidth (BW) of 12.8% from 22.6 to 25.7 GHz. Moreover, the gain is maintained over 6 dB for a large portion of the operational BW. The measured boresight gain is 7.8 dB.

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Two-Pair Slots Inserted CP Patch Antenna for Wide Axial Ratio Beamwidth

Cited by 21 publications

References 24 publications

Dual Band Circularly Polarized Modified Ψ-Shape Microstrip Antenna

Dual Band Circularly Polarized Modified Ψ-Shape Microstrip Antenna

Chiral Dielectric Metasurfaces for Highly Integrated, Broadband Circularly Polarized Antenna

A circularly polarized low‐profile magnetoelectric dipole antenna

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