This article proposes a reconfigurable multiband rhombic shaped microstrip antenna (RMRS‐MSA) up to 20 GHz based on wireless smart applications. In this article radio frequency (RF) PIN diodes are loaded with microstrip feed line on radiating patch for frequency switching. It has a rhombic shaped copper loaded radiating patch. This radiating patch has two more connected rhombic patches inside with a 1 mm gap named as radiating patch 1 and radiating patch 2. These rhombic shaped radiating patches are enclosed with a square parasitic patch for achieving directional radiation pattern. A prototype of reconfigurable multiband rhombic shaped reconfigurable MSA is fabricated using a 30 × 30 mm2 on FR‐4 substrate with a dielectric thickness of 1.6 mm. The proposed RMRS‐MSA is designed, fabricated, and experimentally validated. The experimental report at center frequency 5.21, 9.41, 10.46, 12.69, 14.39, and 17.09 GHz have reflection coefficients of −16.89, −25.54, −24.86, −28.62, −26.80 and −43.02 dB, respectively, when all diodes are OFF. Similarly, when all diodes are ON, at center frequency 14.57 and 15.18 GHz have reflection coefficients of −26.15 and −28.99 dB, respectively. The measured and simulated results agree well. The proposed antenna is more suitable for C, X, and Ku band‐based applications.
Abstract-The proposed microstrip antenna is based on fractal techniques and designed for wireless applications. The radiating element is an A-shaped triangle on which fractal concept is applied. Fractal concept is applied on the proposed A-Shaped Fractal Microstrip Antenna (ASFM-Antenna), similar to English alphabet letter A. Further the analysis and verification of result is achieved by testing the fabricated antenna and also comparison of simulated and experimental results. Von Koch's snowflake concept is used in which a single line is divided into four new lines, and it is done at each side of the triangle. This step is repeated. In this paper, a two-iteration Koch generator is used, thus the proposed antenna is designed. Simulations are carried out using commercially available HFSS (High Frequency Structure Simulator) based on finite element method. The antenna is simulated and fabricated, and results are recorded. It is found that simulated and experimental results are in close agreement with each other. The antenna resonates at 11.44 GHz, 13.178 GHz, 15.482 GHz, 19.902 GHz and 23.529 GHz. Hence,4 GHz], and are the frequencies of operating bands under consideration.
In this paper a novel design of microstrip fed L-shaped arm slot and notch loaded RMPA (Rectangular Microstrip Patch Antenna) with mended ground plane for wide bandwidth is presented. The proposed prototype antenna is fabricated on an FR-4 (Fire retardant) substrate with dimension 30 × 30.8 mm 2 and 1.6 mm thickness. The proposed design is analyzed and simulated using high frequency structure simulator (HFSS) tool version 15. The analysed results are validated through fabrication and measurement results. The analyzed result shows 96.1% maximum radiation efficiency at 2.9 GHz whereas overall efficiency is more than 85% over the entire frequency range, and experiment achieves gain 8.4 dB at 7 GHz. The designed antenna achieves 119.39% impedance bandwidth with more than 5 dB gain over the operating frequency range of 2.41 GHz to 9.55 GHz. For better performance and analysis of proposed antenna, a parametric study has been carried out to analyze the effects of variations in the following-slot and notch dimensions loaded on the patch as well as variations in ground length. The designed antenna can be utilized for various applications incorporating Bluetooth, WLAN, Wi-Max, and UWB operation.
Abstract-This paper presents a Quad-Rectangular Shaped Microstrip Antenna (QRSMA) fed by a single microstrip line feed. QRSMA having different frequency bands is designed to be applied to L (1-2 GHz), S (2-4 GHz) and C (4-8 GHz) bands applications. QRSMA is loaded with a single square patch and 4 rectangular patches. The patches are loaded using a flame retardant substrate (Fr-4). The patches are connected with 1 mm width of copper (Cu) strip-line. Thus the proposed design of patches and width is responsible for desired multiband operations. The antenna resonates at frequencies f 1 = 1.074, f 2 = 3.119, f 3 = 4.089, f 4 = 5.683 and f 5 = 6.514 GHz. Thus, the antenna is useful in the L, S and C band applications. Compared to other antenna designs, the proposed antenna exhibits multiband performance, size reduction and is economical. It also realizes tunability of frequencies having stable radiation pattern with compact electrical size. The paper analyses the simulated and experimental results. Various cases of QRSMA performances are also compared in this paper.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.