Coaxial Feed Ultra-Wideband Microstrip Antenna for Medical Applications

Abstract

In this article, an ultra-wideband antenna has been presented for medical applications which have a resonant frequency of 10.35GHz and offers a bandwidth of 1400MHz with a return loss of -19db. The presented antenna is low-cost lightweight and can easily be integrated inside the circuit. As this antenna is designed for medical applications its size is compact and is fed utilizing a coaxial feeding technique which is especially plentiful for operative radiotherapy applications. The designed antenna is rectangular and covers an overall size of 24x12mm with a thickness of 1mm. The proposed antenna is designed using CST studio as a simulation tool, the extracted results of important parameters like return loss, surface current, reference impedance, and far-field have achieved remarkable results which are illustrated in the article. which makes it suitable for radiotherapy. A high epsilon valued ε r = 4.8, tan δ = 0.02 substrate GT-008 has been employed as a dielectric material whereas copper is being used for the ground and radiating patches. The performance of the antenna in the X-band is satisfactory which makes it suitable for radiotherapy.

A Compact Linear Microstrip Patch Beamformer Antenna Array for Millimeter-Wave Future Communication

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2-Dimensional (2D) Beam Steering-Antenna Using Active PRS for 5G Applications

“…A cylindrical shape tunable FSS design is proposed in [ 8 , 9 ] for dual band beam swiping of a dipole antenna. The electronic beam steering is achieved in [ 10 , 11 , 12 , 13 , 14 , 15 ] by employing hexagonal/cylindrical AFSS structures. To achieve compactness in size, substrate-based antennas are preferred, whereas to achieve the beam steering capabilities, reconfigurable partially reflective surfaces (PRSs) are employed.…”

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