A compact CPW fed multiband antenna for WLAN/INSAT/WPAN applications

Saadh, A.W. Mohammad; Poonkuzhali, R.

doi:10.1016/j.aeue.2019.07.007

Cited by 25 publications

(13 citation statements)

References 17 publications

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“…Consequently, studies of reconfigurable flexible antennas are important in complex circumstances. Presently, some methods for multiband antenna design include a compact triple-band antenna fed by a coplanar waveguide (CPW) [5], a monopole with two F-shaped slot radiators and a microstrip-fed antenna [6], a tri-band double-element folded dipole monopole-fed antenna [7], a monopole antenna for tri-band applications [8], and a compact tripleband double-planar inverted-F antenna [9]. However, these models are not flexible, and they transmit all resonances regardless of user needs.…”

Section: Introductionmentioning

confidence: 99%

A Compact Grounded Asymmetric Coplanar Strip-Fed Flexible Multiband Reconfigurable Antenna for Wireless Applications

2020

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A compact grounded asymmetric coplanar strip (GACS)-fed flexible multiband frequency reconfigurable antenna with two PIN diodes is proposed. The investigated antenna is backed by a flexible polyamide substrate with compact dimensions of 24 mm × 19 mm and a thickness of 1.53 mm. The investigated antenna structure contains a monopole patch that facilitates operation for wireless LAN applications, whereas inverted L-shaped and F-shaped monopoles facilitate operation for Bluetooth and 5G NR applications. The investigated antenna operates at 2.4, 3.8, and 5.6 GHz with measured impedance bandwidths of 5.8%, 6.3%, and 6.6%, respectively, over the three frequency bands, thus facilitating coverage for Bluetooth, 5G NR, and WLAN standards. The two PIN diodes are employed to tune the investigated antenna among four modes, including a single band mode (WLAN 5.5 GHz), two dual-band modes (5G NR 3.8/5.6 GHz, and Bluetooth 2.48/5.6 GHz), and one multiband mode with Bluetooth (2.4 GHz), 5G New Radio (NR) N77 band (3.8 GHz), and WLAN (5.6 GHz) modes. The investigated antenna radiates unidirectionally with a peak gain of 3.73 dBi at 5.6 GHz. Measurements are carried out on the human body to investigate the behaviour of the wearable antenna. The simulated SAR values are in a safe limit of 1.6 W/kg for 1 g of tissue, according to the FCC. Moreover, the investigated antenna shows extremely low vulnerability to degradation in performance as a result of bending effects concerning impedance matching with acceptable acquiescence between measurements and simulations.

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Section: Introductionmentioning

confidence: 99%

A Compact Grounded Asymmetric Coplanar Strip-Fed Flexible Multiband Reconfigurable Antenna for Wireless Applications

2020

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“…RF altimeter operating at a frequency band of 4.2-4.4 GHz is used in aviation industry to measure the altitude of the airborne and this, of a necessity, should not be interfered by other wireless protocol to ensure the accuracy of the measured altitude, hence the use of narrowband antenna operating at a center frequency of 4.3 GHz. Nonetheless, the majority of the works in the literature concentrated on multiband antennas for WLAN, WiMAX and ISM band applications [1][2][3][4][5]. Slot etching on the ground plane or on the radiating patch has been used in the literature to achieve multi-frequency resonances [1,[6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Compact Multiband Bio-Inspired Asymmetric Microstrip Fed Antennas (BioAs-MPAs) for Wireless Applications

Abolade

Konditi

Dharmadhikary

2021

Journal of Engineering

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A comparative analysis of compact multiband bio-inspired Asymmetric microstrip fed antennas (BioAs-MPAs) is presented in this paper for the first time. The proposed antennas are based on semi-Carica papaya-leaf shaped, semi-Monstera deliciosa-leaf shaped, semi-Vitis vinifera shaped, Defected Ground Structure (DGS) and L-slit techniques. The antennas are built on a 33 × 15 mm2 Rogers duroid 5880 substrate. The modelling equations for resonant frequencies of the proposed arbitrarily shaped radiating patch is based on modified circular patch modelling equations. The semi-Carica papaya-leaf antenna operates at 2.4 GHz and 4.4 GHz, Monstera deliciosa-leaf antenna operates at 2.6 GHz, 4.4 GHz and 5.5 GHz, while Vine-leaf antenna operates at 2.5 GHz and 5.4 GHz. The proposed BioAs-MPAs antennas radiation patterns at E-plane are Bi-directional in all the operating frequencies with suitable X-Pol purity and have Omnidirectional radiation patterns at H-Plane in all the operating frequencies. As a result of the analysis, it was found that each of the bio-inspired structures has its unique merit over the others. Owing to the small size, stable radiation pattern, acceptable gain and high radiation efficiency, the proposed BioAs-MPAs antennas are suitable for ISM band, Bluetooth, Wi-Fi, WiMAX, LTE, UMTS, Sub6 GHz 5 G band, ZigBee and RF-Altimeter used in unmanned aerial vehicle and Aviation industry.

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“…Over the years, the attention of researchers has been directed in this direction and the majority of the works in the literature have concentrated on multiband antennas for WLAN, WiMAX and ISM band applications [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. Nonetheless, with the recent deployment of 5G technology, it is necessary to incorporate some of its proposed operating frequency bands with other existing bands while ensuring compactness.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the benefits presented by CPW such as small radiation leakage, less dispersion, the independence of its characteristic impedance on the thickness of the substrate, uniplanar and ease of integration with other microwave devices, it has been popularly employed as the feeding techniques of patch antennas. For symmetrical CPW, the strip is situated at the center of the two ground planes [ 6 , 7 , 8 , 9 , 17 , 18 , 21 ]. On the other hand, Asymmetric CPW usually referred to as asymmetric coplanar strip (ACS) has a strip shifted from the center of the ground plane and usually has its ground plane on one side of the strip [ 15 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Compact hexa-band bio-inspired antenna using asymmetric microstrip feeding technique for wireless applications

Abolade¹,

Konditi

Dharmadhikary

2021

Heliyon

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A compact Hexa-band Bio-inspired antenna is presented in this paper. The structure of the proposed antenna is realized from a semi-Vine-leaf shape, Defected Ground Structure (DGS) and arc-slots techniques. The total dimension of the antenna is 0.35λd x 0.14λd; where λd is the guided wavelength at low frequency (2.37GHz). The design begins with a semi- Vitis vinifera leaf-shaped radiating patch monopole structure, fed with an asymmetric microstrip feedline to achieve compactness. Five (5) arc slits are then introduced on the radiating patch of the initiator with an intention to create band notches and thereby results in multiband and further miniaturization. The proposed antenna is analyzed, simulated and fabricated. The measurement results of the proposed antenna show that the antenna operates at 2.37GHz, 3.06GHz, 3.52GHz, 4.28GHz, 4.88GHz, and 6.0GHz with a -10dB fractional bandwidth of 11.97%, 4.61%, 12.43%, 6.77%, 2.46%, and 11.55% respectively. The peak gain of the proposed antenna is 3.21 dBi. The radiation patterns of the proposed antenna are Bi-directional at XZ-plane and XY-plane, but Omnidirectional at YZ-plane. Owing to the compactness of the antenna, suitable radiation pattern, acceptable gain and high radiation efficiency, the proposed antenna is suitable for several applications such as Industrial, Scientific and Medical (ISM) Band, Radar, WiMAX, 5G mid-band, Bluetooth, WLAN, WiMAX, LTE, and Wi-Fi. The contributions of this work are: (i) the use of asymmetric microstrip feedline for miniaturization purpose contrary to the commonly used asymmetric coplanar strip; (ii) simple formulation for the predictions of notch bands introduced by the slit on the radiating patch; and (iii) presentation of ultra-compact hexa-band antenna compared to the existing multiband antenna.

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A compact CPW fed multiband antenna for WLAN/INSAT/WPAN applications

Cited by 25 publications

References 17 publications

A Compact Grounded Asymmetric Coplanar Strip-Fed Flexible Multiband Reconfigurable Antenna for Wireless Applications

A Compact Grounded Asymmetric Coplanar Strip-Fed Flexible Multiband Reconfigurable Antenna for Wireless Applications

A Comparative Study of Compact Multiband Bio-Inspired Asymmetric Microstrip Fed Antennas (BioAs-MPAs) for Wireless Applications

Compact hexa-band bio-inspired antenna using asymmetric microstrip feeding technique for wireless applications

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