Multiwalled carbon nanotube-based patch antenna for bandwidth enhancement

Abstract

a b s t r a c tA novel carbon nanotube (CNT)-based rectangular microstrip antenna for wide impedance bandwidth applications has been designed and developed. The copper patch commonly placed on the substrate in a conventional rectangular microstrip antenna is replaced with a CNT patch prepared using spin coating. The MWCNT patch antenna was fabricated by spin coating method and it exhibits an increased impedance bandwidth of 20%. The enhancement of the impedance bandwidth does not affect the broadside radiation characteristics. The carbon nanotubes are highly conductive nanomaterial. Due to this unique property, each nanotube present on the surface resonates electromagnetic waves individually and influences the enhancement in the bandwidth. The simple design and fabrication of the proposed antenna can be employed for synthetic aperture radar applications.

Multiband microstrip patch antenna using copper nano radiating element for X band and C band applications

“…Our proposed antenna achieves maximum gain of 11 dB, which is 100% larger than existing antenna. Chaya Devi et al 1 developed patch antenna using Multi‐walled copper nano tube and achieved maximum gain of 7 dB at 10 GHz and antenna efficiency of 90%. Our proposed antenna achieves maximum gain of 11 dB, which is 60% more than multi‐walled copper nano tube patch antenna.…”

“…Structure of the antenna is again and again optimized to obtain multiband characteristics. Carbon Nano Tube based rectangular microstrip antenna was proposed by Chakaya Devi et al In this work, spin coating machine was used for coating the radiating element over the substrate 1 and author suggested that fabrication technology is used for mass production and also achieved 20% bandwidth expansion. Multi‐process 3D printing technology also is used for patch antenna fabrication 2 and the author identified technical challenges for increasing the performance of the antenna at ISM band.…”

Multiwalled Carbon Nanotube-Based On-Body Patch Antenna for Detecting COVID-19-Affected Lungs

“… 28 , 29 However, the use of these conventional materials usually provides narrow bandwidth. 30 , 31 In recent years, many research groups have explored nanomaterials such as graphene, 32 ZnO nanorods, 33 TiO 2 , 34 multiwall carbon nanotubes (MWCNTs), 31 , 35 and so forth, designing the radiating element of the patch antenna. Besides, these nanomaterials have been used in many other photothermal 36 − 40 and optical device applications.…”

Optimization of a Handwriting Method by an Automated Ink Pen for Cost-Effective and Sustainable Sensors

“…Brush and rollerball pens have been already employed with metal inks to develop circuits interconnects and passive electronic components (capacitors, resistors and inductors) as well as to combine them into simple circuitry [16,26]. Even handwriting techniques have been already used to develop antennas at different operating frequencies [27,28]. Further, by utilizing these techniques, different kind of sensors have been fabricated.…”