Polarization reconfigurable slot antenna for 5.8 GHz wireless applications

Yang, Lingsheng; Zhu, Yongan; Yoshitomi, Kuniaki; Kanaya, Haruichi

doi:10.1016/j.aeue.2019.01.022

Cited by 19 publications

(12 citation statements)

References 11 publications

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“…However, the construction and simulation of an infinite surface is impossible. This issue can be resolved by consulting periodic structure theory [3,18,19] according to which the effect of an infinite periodic structure can be obtained by applying appropriate boundary conditions provided that the following condition is met: where 𝜆 0 is the wavelength of operation, 𝜃 𝑚𝑎𝑥 is the largest angle that the incidence wave makes with the normal of the unit cell, and 𝑠 is the length of one side of the unit cell. These boundary conditions are applied by assuming perfect electric conductor (PEC) and perfect magnetic conductor (PMC) boundaries around the unit cell as shown in Figure 26.…”

Section: A Cell Designmentioning

confidence: 99%

“…Due to polarisation mismatch a considerable amount of signal loss occur in the receiving antennas. The ability of switching between linear and circular polarisations and also their senses can be utilized for the reduction of polarisation mismatch losses in portable devices [2] [3]. With the explosion of wireless applications, the Electromagnetic (EM) bandwidth is becoming scarce day by day.…”

Section: Introductionmentioning

confidence: 99%

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A Shared Aperture Microstrip Antenna Array with Multiple Polarisations and Near-Field Beam Steering

Ali¹,

Afzal²,

Thalakotuna³

et al. 2022

Preprint

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In this paper we present a shared-aperture polarisation reconfigurable microstrip array designed to resonate at 11.5 GHz with a gain bandwidth of 2 GHz (~17%). The polarisation reconfigurability (both linear and circular) is achieved using two orthogonal and independently-fed sub-arrays that are intertwined together on the same aperture. Each subarray is fed through one port and a feed network that distributes the power among the array elements incorporating Taylor taper distribution to minimize the sidelobe level. The array has low cross-polarisation level (<-20 dB) and good port isolation (<-24 dB). The shared aperture and absence of active switching devices provide better control of polarisation selection with almost no insertion loss. A near-field metasurface based steering system is also presented and applied to the array for one- and two-dimensional beam steering. The results are verified through model simulations and measurement of the fabricated prototypes.

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Section: A Cell Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Shared Aperture Microstrip Antenna Array with Multiple Polarisations and Near-Field Beam Steering

Ali¹,

Afzal²,

Thalakotuna³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The corner truncated method is used in [8] with 8 PIN diodes to perform frequency and polarization recon gurability. The polarization recon gurability is achieved by using an L-shaped slot on the patch and T-bias devices with PIN diode con gurations which alters the polarization states between RHCP and LHCP in [9]. A single feed is used with a circular ring-shaped patch and a triangular patch with a PIN diode as a switching component to achieve polarization diversity in [10] and [11], respectively.…”

Section: Introductionmentioning

confidence: 99%

Implementation and Validation of Parasitic Stub Integrated Reconfigurable Polarization in Antennas

Yadav¹,

Yadav

2022

Preprint

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This proposed work presents a single feed radiating patch loaded with two parasitic stubs to achieve antenna polarization diversity. The primary antenna is a circular/square metallic patch with a rectangular slotted Defected Ground Structure (DGS), and it resonated at 5.5 GHz with Linear Polarization (LP). The Circular Polarization (CP) is achieved through quarter wavelength parasitic metallic stubs attached with a radiating patch using two PIN diodes which reconfigure the antenna for left hand CP (LHCP) and right-hand CP (RHCP) performances. The antenna is reconfigured its polarization modes between LP, RHCP, and LHCP by utilizing diodes switching configurations. Two antennas, a circular and a corner truncated square patch with parasitic stubs, are investigated to validate the concept of Circular Polarization (CP) using a quarter wavelength stub, and corresponding results are presented. The proposed antennas are printed on an RT/Duroid 5880 dielectric with a thickness 0.8 mm, and it provided a satisfactory agreement between measured and calculated results. The circular and square-shaped antennas have impedance bandwidth of 5.23-5.75 GHz (9.45%) for S11 less than -10dB, and measured axial ratio bandwidth (ARBW) for 3dB is approximately 5.4%.

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“…The ground and radiating structure of the antenna is printed on the single side of the substrate. Different structures are used in the antenna design to have multiband operations 5–8 . Any alteration in the size of the radiating patch or ground plane disturbs the frequency of operation.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric coplanar strip‐fed electrically small reconfigurable 5G mid‐band antenna

Gunamony

Bala

Raj

et al. 2021

Int J Communication

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Summary This work aims to provide an electrically small reconfigurable antenna with modification in the radiating strip length to switch between 5G mid‐band and 4G band‐40 application. Initially, the length of the radiating strip is designed to operate at 3.5 GHz for 5G mid‐band applications. Using switch configuration, the length of the radiating strip is modified so that the antenna's resonant frequency shifts from 3.5 GHz to 2.32 GHz, which can be operated at 4G band‐40. The effective radiation remains the same at two resonant modes. In terms of size, the proposed antenna geometry is (16.5 × 10.5 × 1.6) mm3. The designed antenna with an electrical length of 0.7014 mm is electrically small in size in comparison with the works of literature. Antenna structure provides a gain of 0.69 dBi and 1.35 dBi at resonant frequencies 2.32 GHz and 3.5 GHz, respectively. The geometry of the antenna is straightforward, and the prototype is fabricated on a low‐profile FR4 substrate. The simulated results are validated experimentally.

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Polarization reconfigurable slot antenna for 5.8 GHz wireless applications

Cited by 19 publications

References 11 publications

A Shared Aperture Microstrip Antenna Array with Multiple Polarisations and Near-Field Beam Steering

A Shared Aperture Microstrip Antenna Array with Multiple Polarisations and Near-Field Beam Steering

Implementation and Validation of Parasitic Stub Integrated Reconfigurable Polarization in Antennas

Asymmetric coplanar strip‐fed electrically small reconfigurable 5G mid‐band antenna

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Polarization reconfigurable slot antenna for 5.8 GHz wireless applications

Cited by 19 publications

References 11 publications

A Shared Aperture Microstrip Antenna Array with Multiple Polarisations and Near-Field Beam Steering

A Shared Aperture Microstrip Antenna Array with Multiple Polarisations and Near-Field Beam Steering

Implementation and Validation of Parasitic Stub Integrated Reconfigurable Polarization in Antennas

Asymmetric coplanar strip‐fed electrically small reconfigurable 5G mid‐band antenna

Contact Info

Product

Resources

About

Polarization reconfigurable slot antenna for 5.8 GHz wireless applications