Development of Novel Design to Enhance the Characteristics of Flexible Antenna

2020 ◽  
pp. 49-56
Author(s):  
Neha Nigam ◽  
Vinod Kumar Singh
Keyword(s):  
Return Loss ◽  
Data Transfer ◽  
Radiation Characteristics ◽  
Textile Antenna ◽  
Flexible Antenna ◽  
Novel Design ◽  
Triple Band

This chapter proposed triple band novel geometry and enhanced characteristics of flexible textile antenna. The proposed radio wire indicates wideband execution with wide data transfer capacity of 20.50% covering the recurrence scope of 6.3039 GHz to 7.7445 GHz, 11.57% covering the recurrence scope of 9.0694 GHz to 10.184 GHz, and 8.23% in the recurrence scope of 12.497 GHz to 13.57 GHz. In this chapter, reenacted outcomes like return loss, directivity, and radiation characteristics have been contemplated.

scholarly journals Investigation on Wearable Antenna under Different Bending Conditions for Wireless Body Area Network (WBAN) Applications

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Ismahayati Adam ◽  
Muhammad Ramlee Kamarudin ◽  
Ali H. Rambe ◽  
Norshakila Haris ◽  
Hasliza A. Rahim ◽  
...  
Keyword(s):  
Return Loss ◽  
Coupling Effect ◽  
Ground Plane ◽  
Wireless Body Area Network ◽  
Area Network ◽  
Radiation Characteristics ◽  
Antenna Structure ◽  
Wearable Antenna ◽  
Operating Frequency Range ◽  
Textile Antenna

This paper analysed the effects of bending on the performance of a textile antenna wherein the antenna under test was made of felt substrate for both industrial, scientific, and medical (ISM) band and WBAN applications at 2.45 GHz. Moreover, the conductive material was used for the patch, and the ground plane used a 0.17 mm Shieldit textile. Meanwhile, the antenna structure was in the form of rectangular, with a line patch in between elements to abate the mutual coupling effect. The measured operating frequency range of the antenna spanned from 2.33 GHz to 2.5 GHz with a gain of 4.7 dBi at 2.45 GHz. In this paper, the antenna robustness was examined by bending the structure on different radii and degrees along both X- and Y-axis. Next, the effects on return loss, bandwidth, isolation, and radiation characteristics were analysed. This paper also discovered that the antenna’s performance remained acceptable as it was deformed, and the measured results agreed well with the simulation.

scholarly journals DESIGN OF WEARABLE MULTIBAND CIRCULAR MICROSTRIP TEXTILE ANTENNA FOR WIFI/WIMAX COMMUNICATION

2021 ◽  
Vol 06 (03) ◽  
Author(s):  
Husain Bhaldar ◽  
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Low Cost ◽  
Ground Structure ◽  
Ism Band ◽  
Textile Antenna ◽  
5G Communication ◽  
Circular Microstrip Antenna ◽  
Triple Band

In proposed design the wearable circular microstrip antenna of radius of patch is 14 mm and the top of patch consist of two square slits of dimensions 5x5 mm2 and 10x10mm2 and the ground structure is made partial of 28mm x 86mm. Due to the properties of jeans fabric as low cost, flexible the antenna is made wearable. In the proposed study, circular microstrip textile based antenna has been designed for the ISM band of resonating frequency of 2.4GHz. The proposed structure provided the triple band as the radiating frequencies of 2.4GHz for WiFi, 6.4GHz for WiMAX and 12GHz for 5G communication applications. The simulated and fabricated results such as return loss, VSWR and gain - directivity etc. are analyzed and compared for the frequencies of 2.38GHz, 6.4GHz and 12GHz. In this proposed antenna, the bandwidths of antenna are obtained of the order 700MHz, 3.43GHz & 2.75GHz and gain of antenna are of the order 1.89 dBi, 3.98 dBi & 4.86 dBi.

Comb Shaped Triple Band Microstrip Antenna for Wireless Communication

2021 ◽  
Vol 9 (4) ◽  
pp. 379-382
Keyword(s):  
Dielectric Constant ◽  
Wireless Communication ◽  
High Frequency ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Experimental Results ◽  
High Frequency Structure Simulator ◽  
Frequency Structure ◽  
Triple Band

A comb shaped microstrip antenna is designed by loading rectangular slots on the patch of the antenna. The antenna resonating at three different frequencies f1 = 5.35 GHz, f2 = 6.19 GHz and f3= 8.15 GHz. The designed antenna is simulated on High Frequency Structure Simulator software [HFSS] and the antenna is fabricated using substrate glass epoxy with dielectric constant 4.4 having dimension of 8x4x0.16 cms. The antenna shows good return loss, bandwidth and VSWR. Experimental results are observed using Vector Analyzer MS2037C/2.

A dual-band crossover using cross-shaped microstrip line for small and large band ratios

2017 ◽  
Vol 9 (8) ◽  
pp. 1629-1635 ◽  
Author(s):  
Idury Satya Krishna ◽  
Rusan Kumar Barik ◽  
S. S. Karthikeyan
Keyword(s):  
Insertion Loss ◽  
Matrix Method ◽  
Microstrip Line ◽  
Return Loss ◽  
Dual Band ◽  
Band Ratios ◽  
Form Design ◽  
Frequency Ratios ◽  
Novel Design ◽  
Large Frequency

A novel design of planar dual-band microstrip crossover operating at small and large frequency ratios is presented. These features of the proposed dual-band crossover are achieved by a cross-shaped transmission line. To obtain the dual-band characteristics, the required closed form design formulas are computed using the ABCD matrix method. Based on the design formulas, the realizable small and large band ratios are calculated as 1.65–2.14 and 4.1–8.76, respectively. To validate the computed band ratios, three examples of dual-band crossovers are presented. Finally, two prototypes of dual-band crossover working at smaller and larger frequency ratios are fabricated and tested. The fabricated dual-band crossovers exhibit good return loss and isolation of over 20 dB with minimal insertion loss.

A Circularly Polarized, Flexible and Compact Quad-Band Wearable Antenna for Off-Body Communication Applications

2021 ◽  
Author(s):  
Anil Badisa ◽  
B T P Madhav ◽  
B Prudhvi Nadh
Keyword(s):  
Simulation Environment ◽  
Circularly Polarized ◽  
Radiation Properties ◽  
Radiating Element ◽  
Textile Antenna ◽  
Polarization Characteristics ◽  
Stable Performance ◽  
The Impact ◽  
Triple Band ◽  
Polarized Radiation

A compact wearable textile antenna with multiband and circular polarization characteristics is proposed in this work for Wireless Body Area Networks (WBAN). An asymmetrically connected vertical stub as a radiator with the partial ground for quad-band (3.03–3.76[Formula: see text]GHz, 5.48–6.24[Formula: see text]GHz, 7.10–7.40[Formula: see text]GHz, 7.93–8.22[Formula: see text]GHz) operation and horizontal stubs on the radiator with L-slots in the ground is proposed for the triple band (3.16–3.22[Formula: see text]GHz, 7.25–7.36[Formula: see text]GHz and 7.93–8.08[Formula: see text]GHz) circularly polarized radiation. Jeans fabric is used as substrate with dielectric constant [Formula: see text] and loss tangent ([Formula: see text]). The dimensions of the proposed antenna are [Formula: see text][Formula: see text]mm3. Various conductive fabrics are investigated and analyzed as a radiating element. The proposed jeans antenna provides the gain ([Formula: see text] dB) and radiation efficiency ([Formula: see text]%) for all operating bands. The impact of the human body right arm loading on the antenna has been presented in terms of the reflection coefficient ([Formula: see text]) and gain using the CST Microwave studio simulation environment. The proposed antenna provides stable performance under bending conditions and the SAR values that are under acceptable limits ([Formula: see text][Formula: see text]W/kg for 10[Formula: see text]g of tissue). The flexibility, compactness and radiation properties make it suitable as a wearable textile antenna for off-body communication applications.

scholarly journals Design of Circularly Polarized Triple-Band Wearable Textile Antenna with Safe Low SAR for Human Health

Electronics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1366 ◽  
Author(s):  
Ashok Yadav ◽  
Vinod Kumar Singh ◽  
Pranay Yadav ◽  
Amit Kumar Beliya ◽  
Akash Kumar Bhoi ◽  
...  
Keyword(s):  
Microstrip Line ◽  
Radiation Effect ◽  
Axial Ratio ◽  
Antenna Design ◽  
Circularly Polarized ◽  
Frequency Bands ◽  
Textile Antenna ◽  
Peak Gain ◽  
Triple Band ◽  
Ku Band

In this manuscript, an antenna on textile (jeans) substrate is presented for the WLAN, C band and X/Ku band. This is a wearable textile antenna, which was formed on jeans fabric substrate to reduce surface-wave losses. The proposed antenna design consists of a patch and a defected ground. To energize the wearable textile antenna, a microstrip line feed technique is used in the design. The impedance band width of 23.37% (3.4–4.3 GHz), 56.48% (4.7–8.4 GHz) and 31.14% (10.3–14.1 GHz) frequency bands are observed, respectively. The axial ratio bandwidth (ARBW) of 10.10% (4.7–5.2 GHz), 4.95% (5.9–6.2 GHz) and 10.44% (11.8–13.1 GHz) frequency bands are observed, respectively. A peak gain of 4.85 dBi is analyzed at 4.1-GHz frequency during the measurement. The SAR value was calculated to observe the radiation effect and it was found that its utmost SAR value is 1.8418 W/kg and 1.919 W/kg at 5.2/5.5-GHz frequencies, which is less than 2 W/kg of 10 gm tissue. The parametric study is performed for the validation of the proper functioning of the antenna.

scholarly journals Low Cost AIP Design in 5G Flexible Antenna Phase Array System Application

Micromachines ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 851
Author(s):  
Wei-Shin Tung ◽  
Wei-Yuan Chiang ◽  
Chih-Kai Liu ◽  
Chiung-An Chen ◽  
Pei-Zong Rao ◽  
...  
Keyword(s):  
Integrated Circuit ◽  
Return Loss ◽  
Low Cost ◽  
Cell Structure ◽  
Unit Cell ◽  
Phase Array ◽  
Shift Control ◽  
Antenna Phase ◽  
Flexible Antenna ◽  
Peak Gain

In this paper, a low cost 28 GHz Antenna-in-Package (AIP) for a 5G communication system is designed and investigated. The antenna is implemented on a low-cost FR4 substrate with a phase shift control integrated circuit, AnokiWave phasor integrated circuit (IC). The unit cell where the array antenna and IC are integrated in the same plate constructs a flexible phase array system. Using the AIP unit cell, the desired antenna array can be created, such as 2 × 8, 8 × 8 or 2 × 64 arrays. The study design proposed in this study is a 2 × 2 unit cell structure with dimensions of 18 mm × 14 mm × 0.71 mm. The return loss at a 10 dB bandwidth is 26.5–29.5 GHz while the peak gain of the unit cell achieved 14.4 dBi at 28 GHz.

A Novel Design of Triple-Band Gysel Power Divider

2013 ◽  
Vol 61 (10) ◽  
pp. 3558-3567 ◽  
Author(s):  
Mohsen Hayati ◽  
Seyed-Ali Malakooti ◽  
Ashkan Abdipour
Keyword(s):  
Power Divider ◽  
Novel Design ◽  
Triple Band
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