Title: Hybrid magneto-hydrodynamic antenna

Authors: Rajveer S. Yaduvanshi

Addresses: AIACT&R, Government of Delhi, Delhi 110031, India

Abstract: A hybrid magneto-hydrodynamic antenna consisting of one copper annular ring loaded with dielectric resonator has been biased with DC voltage and magnetic fields. RF input and DC bias voltage has been applied in x direction and magnetic field B has been given in y direction. Propylene polymer pipes (PPR) cylindrical tube filled with mixture of barium strontium titanate (BSTO) and silicone oil is placed on the concentric copper annular ring. Mathematical coupled solution of Maxwell's and Navier Stroke's equations have been worked for this geometry. A new antenna parameter, i.e., velocity field (v) has been found to be contributing to the Poynting vector solution to this class of antennas. Velocity field (v) has become integral part along with E and H fields for computing Poynting vector. Hence, PPR geometry, fluid volume, copper annular ring radius, fluid permittivity, electric filed (E), magnetic field (H) and velocity (v) becomes the function of antenna resonant frequency and radiation patterns. A prototype antenna has been designed. Simulations based on HFSS have been presented. Both type results were compared. More than 4.5 GHz ultra large bandwidth and 17 dB gain has been reported in the results.

Keywords: barium strontium titanate; BSTO; copper annular ring; dielectric resonator; ultra wideband; YWB; magneto-hydrodynamic antenna; propylene polymer pipes; silicone oil; velocity field; antenna resonant frequency; antenna radiation patterns; simulation.

DOI: 10.1504/IJUWBCS.2012.054376

International Journal of Ultra Wideband Communications and Systems, 2012 Vol.2 No.4, pp.201 - 206

Received: 10 Jul 2012
Accepted: 07 Nov 2012
Published online: 30 Aug 2014 *

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