Multiband Millimeter Wave T-Shaped Antenna With Optimized Patch Parameter Using Particle Swarm Optimization

Abstract

This paper proposed a simple T-shaped patch antenna for millimeter waveband frequency operation. Millimeter wave is a frequency ranges between 30GHz to 300GHz in an electromagnetic spectrum. The proposed antenna consists of T-shape radiating patch mounted on rectangular substrate (FR4-4) and microstrip line for antenna feeding. An evolutionary algorithm called particle swarm optimization was used to optimize the length and width of the proposed antenna patch. The proposed antenna gives triple bands with central frequencies at 42GHz, 51.5GHz and 60GHz. The antenna offers minimum return loss of -19db, -24db and -19.5db at 42GHz, 51.5GHz and 60GHz respectively. The return loss impedance bandwidth of 5GHz for the first band, 8.4GHz for the second band and 5GHz for the third band was obtained. The proposed antenna was analyzed using Ansoft High Frequency Structure Simulator (HFSS) and MATLAB 2013. Radiation characteristics of this patch antenna are observed at various resonating frequencies.  http://dx.doi.org/10.4314/njt.v36i3.33

Wideband and dual-band antennas with band-notched using electromagnetic band-gap structure

“…However, the microstrip patch antenna suffers from narrow bandwidth and low gain [1]. Recently, microstrip patch antenna research interests have shifted towards operation at high frequencies such as millimeter-wave spectrum [2], [3], due to limited spectrum at a low frequency and potential possibilities offered by high frequency such as high gain and increased bandwidth. In 5G wireless communication applications, a high frequency spectrum above 6GHz is been utilized.…”

“…Firstly, by lowering the Quality factor (Q-factor).The patch of a microstrip antenna can be rectangular, square, circular or elliptical. So, by changing the patch configuration to another shape such as T-shape [3], or increasing substrate thickness, the Q-factor is lowered. Secondly, by using an impedance matching network [5], [6].…”