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Abstract
In this paper, the microstrip antenna rectangular patch with beetle shaped slot is presented. The characterization results of the proposed antenna obtained by changing the dimensions of the ground plane. CST software is used to design and analyze this proposed antenna. The simulated results of proposed antenna show that the antenna works at the frequency of 2.1 GHz while the return loss of -32.18 dB with the bandwidth reaches 155.19 MHz and the gain of 3.895 dBi.
Keywords: Patch Antenna, LTE, Beetle-Shaped Slot
Copyright © 2017 Universitas Ahmad Dahlan. All rights reserved.
(ProQuest: ... denotes formulae omitted.)
1. Introduction
LTE (Long Term Evolution) technology has been released. LTE will be the step towards the fourth generation (4G) originated from radio technology which is designed to improve network capacity and speed. LTE provides downlink capacity of at least 100 Mbps and uplinks capacity of at least 50 Mbps [1].
Microstrip antenna is suitable for LTE application. Nowadays, it is increasingly used for wireless application because of its low cost and easy to fabricate. However, the microstrip antenna has a weakness in bandwidth. It has small bandwidth. To overcome it, there are several ways to broaden the bandwidth such as creating a slot, thicken the substrate, array the elements of antenna, ground plane modification, etc. Papers [2-5] has discussed the affect of changing the shape of ground plane dimension to the frequency and bandwidth of microstrip antennas. They show that the bandwidth increased by changing the shape of ground plane. Papers [6-7] has proposed the microstrip antenna used for applications such as WLAN, UMTS, LTE and WIMAX. Rationing coaxial probe is used to optimize the antenna impedance which is connected to the patch and the outer conductor connected to the ground plane [8-13]. In this paper, the rectangular microstrip patch antenna with beetle-shaped slot uses the coaxial probe for LTE...