Flexible Ultra Wide Band Antenna for WBAN Applications

A compact ultrawideband planar antenna with modified circular patch and a defective ground plane for multiple applications is presented. The proposed structure consists of a modified circular patch and rectangular parasitic elements with defective ground plane etched on flame retardant (FR‐4) substrate with 50 Ω feed line. Return loss (S11 < −10 dB) and the simulated bandwidth of the structure was 2.5 to 12.2 GHz with the fractional bandwidth of 131%. The overall volume of the structure had a compact size of 15 × 19 × 1.6 mm3. The gain of the structure is 3.5 dB, and the antenna efficiency is 73.5%. The structure radiated (stable radiations) omnidirectional and bidirectional patterns. Measured and simulated results of Co‐ and Cross‐polarizations. are in relatively good agreement. All these properties shows that the proposed structure is applicable in WiMAX‐band 3.5, 5.5 GHz, WLAN‐band 5.2, 5.8 GHz, X‐band8‐12 GHz, data links to satellites along with various applications in the wireless communication field.

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

A compact, ultrawide band planar antenna with modified circular patch and a defective ground plane for multiple applications

Hota

Baudha

Mangaraj

et al. 2019

“…Flexible antennas owing to its ease of integration in nonplanar surfaces along with its wide range of applications in flexible electronics and wearable devices have attracted a lot of researchers to work in this domain. Various wideband flexible antennas using inkjet printing, FR4, natural rubber, paper, Kapton polyimide, Rogers 6010, poly 3, 4‐ ethylene dioxythiophene are proposed for wearable, WBAN, 5G, IoT devices, implantable devices, organic wearable technologies, flexible electronics, and 4G LTE applications. Researchers further implemented antennas which are transparent as well flexible to save the board space while maintaining the aesthetics with no visual clutter.…”

Section: Introductionmentioning

confidence: 99%

Flexible CPW fed transparent antenna for WLAN and sub‐6 GHz 5G applications

Desai

Upadhyaya

Patel

et al. 2020

A transparent flexible co‐planar waveguide fed patch antenna using polyethylene terephthalate substrate is presented. The wideband high gain antenna having an overall dimension of 0.48λ × 0.64λ at the center frequency of 4.28 GHz is fabricated using a transparent sheet made up of Silver Tin Oxide (AgHT‐8). The performance of the proposed antenna is compared with four other nontransparent nonflexible and semitransparent flexible antennas. For the engineered design, patch geometry and feeding mechanism are kept constant whereas the substrate and patch materials are varied. Simulations are carried out using finite element method‐based full wave high‐frequency structure simulator after which the antennas are fabricated and tested. The proposed flexible transparent antenna has bandwidth in order of 40%, ranging from 3.89 to 5.9 GHz, with a notable gain over 3 dBi and efficiency greater than 80% for the entire frequency band. The bending conditions are also tested for the flexible transparent antenna which showed decent performance for sub‐6 GHz 5G and WLAN applications.

“…By simply adding a folded strip in the planar monopole antenna, dual UWB band characteristics have been reported . Introduction of X‐shaped slit, U‐shaped slit, T‐shaped structure, E‐shaped patch, and rectangular U‐shaped slots in the partial ground plane results in obtaining wideband behavior of planar antennas . UWB antenna with circular polarization is propose .…”

Section: Introductionmentioning

confidence: 99%

“…4 Introduction of X-shaped slit, U-shaped slit, T-shaped structure, E-shaped patch, and rectangular U-shaped slots in the partial ground plane results in obtaining wideband behavior of planar antennas. 5,6,[11][12][13] UWB antenna with circular polarization is propose. 7,14 Circular polarization is obtained with the truncated corners technique applied on a square patch antenna.…”

Section: Introductionmentioning

confidence: 99%

A novel design of a planar antenna with modified patch and defective ground plane for ultra‐wideband applications

Baudha

Yadav

2019

In this article, a novel design of a planar antenna with modified patch and defective ground plane for UWB applications is presented. The optimum dimension of the antenna is 20 × 25 × 1.5 mm3 and it is fabricated on commercially available low‐cost FR‐4 substrate having relative permittivity (εr = 4.3) and relative permeability (μr = 1) with a loss tangent of 0.025. The impedance bandwidth of the proposed antenna (magnitude of S11 [S11 < −10 dB]) is 110% (3.1‐10.8 GHz). The peak gain and the peak radiation efficiency of the proposed antenna is 5.1 dB and 89%, respectively, in the proposed band of operation. Simulated and measured results of the proposed antenna are in good agreement. The proposed antenna is suitable for ultra‐wideband applications, 3.5/5.5 GHz WiMAX band, 5.2/5.8 GHz WLAN band, 4/6 GHz satellite communication, and various other wireless communication applications.