International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 04 | Apr 2023
p-ISSN: 2395-0072
www.irjet.net
PERFORMANCE EVALUATION AND ANALYSIS OF FREQUENCY RECONFIGURABLE DIELECTRIC RESONATOR ANTENNA: A REVIEW KM NEHA VERMA1, Dr. RISHI ASTHANA2 1M.Tech, Electronic and Communication Engineering, GITM, Lucknow, India
2Assistant Professor Electronic and Communication Engineering, GITM, Lucknow, India
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Abstract - Frequency reconfigurable dielectric resonator
or wires. This has lowered the cost of communication and made it more accessible to people in remote areas who may not have had access to traditional communication methods. Wireless communication has also improved safety in many industries, such as transportation and emergency services. For example, wireless communication allows emergency responders to quickly communicate with each other and coordinate their response to a crisis. Wireless communication has enabled the development of new technologies, such as smart homes, wearables, and the Internet of Things (IoT). These technologies are transforming the way people live and work, and are opening up new possibilities for businesses and consumers alike. Overall, the importance of wireless communication cannot be overstated. It has revolutionized the way people communicate and does business, made communication more accessible and cost-effective, improved safety, and enabled the development of new technologies.
antennas (DRAs) are a type of antenna that can adjust their operating frequency without physically changing their shape or size. DRAs are made of a high-permittivity dielectric material that resonates at a specific frequency, and by adjusting the dielectric constant of the material or its dimensions, the resonant frequency of the antenna can be tuned. One way to achieve frequency reconfigurability in DRAs is by using a varactor diode, which is a type of electronic component that can change its capacitance when a voltage is applied. By placing a varactor diode in series with the DRA, the effective permittivity of the dielectric material can be changed, and the resonant frequency of the antenna can be shifted. Another approach to achieving frequency reconfigurability in DRAs is by using a switchable feed network, which can change the coupling between the DRA and the feedline. By switching between different feed configurations, the resonant frequency of the antenna can be changed.
1.1. RECONFIGURABLE DIELECTRIC RESONATOR ANTENNA
Frequency reconfigurable DRAs have several advantages, including their small size, low profile, and wide bandwidth. They can also be easily integrated into wireless communication systems and have applications in mobile and satellite communication systems, radar systems, and wireless sensor networks.
Reconfigurable dielectric resonator antennas (RDRA) are a type of antenna that uses a dielectric resonator to resonate at a specific frequency. The dielectric resonator is made of a high-permittivity material and is typically in the form of a cylindrical or rectangular block.
Key Words:
Frequency reconfigurable, resonator, antennas, wireless, communication.
RDRA is designed to allow its resonant frequency to be changed dynamically by using some form of tuning mechanism. This tuning mechanism can be either electrical or mechanical. The use of such a mechanism allows the RDRA to be reconfigured to operate at different frequencies, which makes it highly versatile and useful in a variety of applications.
1. INTRODUCTION Wireless communication is incredibly important in today's world, and its importance is only increasing as technology advances. Wireless communication allows people to stay connected while on the move, whether it's through mobile phones or other wireless devices. This has revolutionized the way people communicate and do business, as it enables them to work from anywhere and stay connected to the internet at all times. With wireless communication, people no longer have to be tethered to a specific location to communicate or access information. This convenience has made it possible for people to work remotely, access information on the go, and stay connected with friends and family even when they are not physically close. Wireless communication has made it possible to transmit information over long distances without the need for expensive infrastructure, such as cables
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One of the main advantages of RDRA is that it can provide high levels of performance, including high gain, low loss, and high directivity. In addition, its compact size and reconfigurability make it an attractive option for use in a variety of applications, including wireless communication systems, satellite communication systems, radar systems, and microwave imaging systems. RDRA technology is still in its early stages of development, but it has already shown significant potential in a range of applications. As the technology continues to mature, it is
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