Design of Microstrip Patch Antenna with Branch Feeding Technique for Tetra Band Applications

Abstract

This paper takes research on design of multiband microstrip patch antenna. The proposed patch antenna can resonate at seven unique frequencies between 2 GHz and 9GHz out of which four are considered to be useful bands. To accomplish multiband frequency, proposed finite element method is employed to design the rectangular Microstrip Patch Antenna (MPA). The circular patch is designed and then united with more circles to make a new design. The proposed antenna is designed on FR4 Epoxy substrate with specifications : relative permittivity = 4.4, relative permeability = 1, di-electric loss tangent =0.02 and thickness = 1.6 mm .The return loss for all the resonant frequencies is less than -10dB. The proposed design exhibits individual gain of 8.9 dB at 7.1 GHz where overall gain is 3.1 dB in the final iteration, and is used public sector applications i.e. military, business radio (police and fire) and in space science like radio astronomy. Frequency above 6 GHz are going to be used in future mobile communication in 5G.

X-BAND Rectangular Microstrip Patch Antenna: Design, Simulation, and Analysis

“…The reason why the circular and rectangular shape microstrip patch antennas are so popular is that they provide various frequency operation, feed line flexibility, array design compatibility, and both gives linear or circular polarization [4].…”

A stub microstrip patch antenna for sub 6GHz - 5G applications

“…These two antennas are the simplest to design and fabricate, are low cost, can be designed small, and support both linear and circular polarization. The designs can work with the simplest and most complex applications [10]. Predicting the radiation of the rectangular antenna is done in [8], but there is no unique mathematical expression that can be used for every antenna possible, and there is no correct solution.…”