Multi-Band Rectangular Two Element and Slotted Antennas for MIMO
0Multi-Band Rectangular Two Element and Slotted Antennas for MIMO
Layman’s Abstract
This research focuses on designing wireless multiband antennas, which are useful for applications like vehicles, remote locations, and multi-purpose communication devices. These antennas can operate at multiple frequencies, making them efficient for various tasks without needing multiple devices.
Two types of antennas are studied:
A simple rectangular antenna that works at specific frequencies (3.8 GHz and higher).
A slotted microstrip antenna, which has carefully designed cuts (slots) to improve performance and work at multiple frequencies (6.25 GHz to 11.32 GHz).
The addition of slots helps increase efficiency, improve signal direction, and enhance antenna performance. A special feeding technique called Quarter Wavelength Transformer (QWT) is used to minimize signal loss and improve overall functionality.
The antenna's design and performance are tested using Ansys HFSS software, a powerful tool for simulating wireless systems. Results show that the two-element slotted antenna has compact dimensions (24.225 × 29.061 mm), a strong signal gain of 9.4 dB, and high efficiency (88.64%), making it highly suitable for modern wireless applications.
----------------------------
ABSTRACT: Wireless multiband antennas are useful in various applications such as on rooftops of vehicles and in remote areas where multiple tasks are to be performed in a single device. This research presents a single-feed rectangular two-element array antenna and a slotted microstrip array antenna. The design is developed from a single rectangular patch and a two-element rectangular patch with a single feed. A single element radiates at 3.8 GHz, and two elements at 3.88 GHz,6.66 GHz, 7.59 GHz and 10.11 GHz. Slots are being created in the patches, at the edges and in the middle of the patch. Slotted antenna radiation frequencies are 6.25GHz, 7.70GHz, 9.6GHz,11.07GHz and 11.32GHz. This improves the working frequencies directivity, radiation efficiency and gain of the antenna. Quarter wavelength transformer (QWT) feeding is used for improving impedance matching to reduce reflections and hence improve antenna parameters. Detailed analysis and simulations of the antenna characteristics and various other parameters are performed using Ansys HFSS Software. Comparative analysis shows that the designed two-element antenna with inset feed has smaller dimensions 24.225 × 29.061 mm in slot antenna structure with a peak gain of 9.4dB and maximum radiation efficiency of 88.64 %.
#WirelessAntenna #MultibandAntenna #PatchAntenna #SlottedAntenna #HighGainAntenna #MicrostripAntenna #AnsysHFSS #AntennaDesign #RFEngineering #5GAntenna #IoT #MicrowaveEngineering #Electromagnetics #CompactAntenna #futuretechnology
Please see the book here: https://doi.org/10.9734/bpi/mono/978-93-49238-41-1/CH2