Wideband circularly polarized parasitic patches loaded coplanar waveguide-fed square slot antenna with grounded strips and slots for wireless communication systems

Rashmi, Rashmi; Kumar, Ashok; Saraswat, Kapil; Kumar, Arjun

doi:10.1016/j.aeue.2019.153011

Cited by 20 publications

(7 citation statements)

References 24 publications

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“…Various single-fed monopole CP antennas with different configuration have been designed in the recent few years. [8][9][10][11][12][13][14] In this paper, an isosceles trapezoidal monopole antenna (ITMA) with dual broadband characteristics of impedance bandwidth (IBW) and a single wideband axial ratio bandwidth (AR BW) is proposed. The antenna is designed on a single layer, single microstrip line feed configuration, and low-cost substrate (FR4).…”

Section: Introductionmentioning

confidence: 99%

A wide circularly polarized dual‐band isosceles trapezoidal monopole antenna with modified ground plane

Bag

Biswas

Sarkar

2021

Int J Communication

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Summary In this paper, a simple wideband circularly polarized monopole antenna for different wireless and satellite communication applications is proposed. The top plate of the antenna is composed of an isosceles trapezoidal patch with an inverted L‐shaped strip connected along with this. The bottom side (ground plane) has been modified by embedding two right‐angle triangular stubs for enhancing the impedance and CP performances. The proposed antenna is designed and fabricated on commercially available FR4 substrate occupying the volume of 0.525λ₀ × 0.42λ₀ × 0.0168λ₀. The −10‐dB reflection coefficient bandwidth exhibits two wide bands of 1530 MHz (2.6 GHz to 4.13 GHz) and 2040 MHz (6.93 GHz to 8.97 GHz). The measured 3‐dB AR bandwidth is 1800 MHz (6.6 GHz to 8.4 GHz), covering International Tele‐communication Union for satellite communication bands (uplink and downlink). In addition, the proposed monopole antenna has also provided good gain ≥5dBi for both the bands.

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Section: Introductionmentioning

confidence: 99%

A wide circularly polarized dual‐band isosceles trapezoidal monopole antenna with modified ground plane

Bag

Biswas

Sarkar

2021

Int J Communication

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“…On the other hand, circularly polarized (CP) antennas are known for their strong immunity to multipath effects, absorption losses, signal attenuation, mismatch losses and low sensitivity to physical orientation [17]- [22]. The effect of circular polarization diversity on the capacity of a MIMO system has been studied in [23] using a polarization reconfigurable antenna.…”

Section: Introductionmentioning

confidence: 99%

Implementation of Spatial/Polarization Diversity for Improved-Performance Circularly Polarized Multiple-Input-Multiple-Output Ultra-Wideband Antenna

et al. 2020

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In this paper, spatial and polarization diversities are simultaneously implemented in an ultra-wideband (UWB) multiple-input-multiple-output (MIMO) antenna to reduce the correlation between the parallel-placed radiators. The keystone of the antenna is systematically modified coplanar ground planes that enable excitation of circular polarization (CP). To realize one sense of circular polarization as well as ultra-wideband operation, an extended rectangular slot is etched on the left-hand-side of the coplanar waveguide (CPW) feed. This is combined with the asymmetrical ground plane geometry on the right-hand-side of the feeding line. The current flowing on the slotted ground plane forms a quasi-loop and generates CP, whereas the combination of the vertical current on the feedline and the horizontal current on the asymmetric ground plane adds to the axial ratio (AR) bandwidth. To implement the MIMO design with polarization and spatial diversity, the position of the coplanar ground planes is switched with respect to the feedline, and placed in a parallel formation with the edge-to-edge distance of 0.29λ 0. All geometrical parameters are optimized at the full-wave level of description before prototyping and experimental characterization. Simulation and measured results indicate that the proposed MIMO antenna features approximately 82% impedance bandwidth from 2.9 GHz to 7.1 GHz and 68.5% (3.1 GHz-6.35 GHz) AR bandwidth. Moreover, the peak envelop correlation coefficient (ECC) is below 0.003, which corresponds to almost no correlation between the radiators. The antenna can be operated with either bidirectional or unidirectional characteristics, covering multiple commercial application bands including WLAN and WiMax. INDEX TERMS Circular polarization antennas, MIMO antennas, compact antennas, wideband antennas, simulation-driven design.

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“…For generating single−/dual‐band CP and broaden the AR bandwidth, the various techniques for instance parasitic patches, moon shaped, meandered‐shaped, hook‐shaped, cross‐dipole, deformed ground, and T‐shaped feed lines have been elaborated in slot and monopole antennas 11‐20 . Furthermore, the electric monopole with four magnetic elements 21 and waveguide slot 22 omnidirectional antennas has been reported for generation of CP to cover device‐to‐device (D2D) future 5G and Ka‐band applications.…”

Section: Introductionmentioning

confidence: 99%

“…[8][9][10] For generating single−/dual-band CP and broaden the AR bandwidth, the various techniques for instance parasitic patches, moon shaped, meandered-shaped, hook-shaped, cross-dipole, deformed ground, and T-shaped feed lines have been elaborated in slot and monopole antennas. [11][12][13][14][15][16][17][18][19][20] Furthermore, the electric monopole with four magnetic elements 21 and waveguide slot 22 omnidirectional antennas has been reported for generation of CP to cover device-to-device (D2D) future 5G and Ka-band applications. Moreover, single-layer series-fed surface-integrated-waveguide (SIW), 23 and inverted-L sleeve loaded C-shaped microstrip array 24 antennas for CP response has been presented to include Ka-band and high-band 5G applications.…”

Section: Introductionmentioning

confidence: 99%

A broadband circularly polarized monopole antenna for millimeter‐wave short range 5G wireless communication

Kumar

2020

Int J RF Microw Comput Aided Eng

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This article describe the design and measurement of a broadband circularly polarized (CP) monopole antenna for millimeter wave short range 5G Wireless communication applications. This antenna is comprised of a T-shaped monopole antenna with an inverted-L grounded stub and an asymmetric coplanar wave guide feed. To attain the broadband CP, an inverted-L grounded stub is embedded in the coplanar ground and introducing asymmetry in the horizontal T-shaped patch connected feed line monopole antenna. A compact size of 1.877λ L × 1.706λ L × 0.130λ L is accomplished when measured at lower edge frequency (f L,|S11|). For the proposed antenna structure conforming to f L,|S11| , a measured 3-dB axial ratio bandwidth of 13.67% (4 GHz, 27.26-31.26 GHz), impedance bandwidth of 27.9% (8.3 GHz, 25.6-33.9 GHz), peak gain of 7.15dBi, and a bidirectional patterns with a dual sense polarization are attained.

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Wideband circularly polarized parasitic patches loaded coplanar waveguide-fed square slot antenna with grounded strips and slots for wireless communication systems

Cited by 20 publications

References 24 publications

A wide circularly polarized dual‐band isosceles trapezoidal monopole antenna with modified ground plane

A wide circularly polarized dual‐band isosceles trapezoidal monopole antenna with modified ground plane

Implementation of Spatial/Polarization Diversity for Improved-Performance Circularly Polarized Multiple-Input-Multiple-Output Ultra-Wideband Antenna

A broadband circularly polarized monopole antenna for millimeter‐wave short range 5G wireless communication

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