Abstract
In this project, method of designing of high gain and mutual coupling reduction is proposed, which can be done by antipodal Vivaldi antenna (AVA) for 5G applications. For the reduction of isolation between the antenna elements, the antennas are not placed adjacent to each other because they have a chance of absorbing the energy which is to be transmitted. The proposed AVA comprises of 2 x 1 multiple input multiple output (MIMO) antenna elements. The antenna parameter enhancement techniques used in this design are corrugation and circular slots. The antenna dimensions are 50mm x 48mm x 0.8mm. Here, we use corrugation and circular slots method, as to increase the gain than previously designed antenna. The maximum isolation of antenna is achieved is 37dB and gain is improved in the desired range. The simulated gain is in the range of 7.1-14.4 dB in the frequency band of 20-30GHz.
Highlights
Currently, 3G/4G support a limited number of users at high data rates and there are many problems like propagation loss, signal discontinuity, moderate data rates, etc. 4G LTE has various commercial services to achieve high data rates and offers high speed in connection
Smith chart of Antipodal Vivaldi Antenna (AVA) antenna where the impedance is equal to 1 in angle between 0o and 90o which indicates the good performance of AVA antenna
2 x 1 multiple input multiple output (MIMO) AVA antenna has improvement in return loss S11 than the previous single patch AVA antenna with an isolation of -34dB in the desired range and impedance matching, and gain is better than previous design
Summary
3G/4G support a limited number of users at high data rates and there are many problems like propagation loss, signal discontinuity, moderate data rates, etc. 4G LTE has various commercial services to achieve high data rates and offers high speed in connection. 4G LTE has various commercial services to achieve high data rates and offers high speed in connection. To overcome these problems, a new technology is needed i.e.,5G. 5G is Fifth Generation cellular network technology, which supports a billion devices, while 4G supports only up to million devices. 5G technology will boost the network speed in wireless systems. Due to the wider bandwidth and an advanced antenna, 5G increases the data transmission amount over wireless systems. 5G provides connectivity which allows new generations of applications, services and opportunities that have not been seen till now. The term "MIMO" indicates the use of various antennas at the transmitter and the receiver simultaneously over the same radio channel by using multipath propagation.
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