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Buet trio develops first tetra band microstrip patch antenna
We all know the ancient history of the Battle of Marathon where Pheidippides, the messenger who ran from the battle field of Marathon to Athens to announce the defeat of the Persians in the battle. In today's world of Wi-Fi and cell phones, where communication needs no running feet, this historic anecdote surely sounds like a fib.
Be it the television or internet, communication all over the globe is made fast at the speed of light! But to watch the BBC news here on your TV, at the same time as it is broadcasted in London, special devices are required which help convey the radio waves or rather information through space.
Antennas are required by any radio receiver or transmitter in order to couple its electrical connection to the electromagnetic field. Cell phone base stations, televisions, mobile phones, military communication stations all require this device to convey signals for communication.
So far dual band antennas have been in use that operates at different bands, and efforts are being made by researches all over the globe to reduce the antenna size. Aware of the current status of the work in progress, Mahdy, Zuboraj and Noman, graduates from the Department of Electrical and Electronics Engineering, Buet (Bangladesh University of Engineering and Technology), developed the first ever tetra band microstrip patch antenna. Their work started as a departmental thesis project and little did they know then that their research on 'Novel Theory and Design Procedure of Multiband Rectangular Patch Antennas Loaded with Metamaterial' would turn into a work of appreciation.
“For years, researches in the US and all over the world could not make progress in size reduction of antennas,” said the three. Reduction in antenna size was initially a project supported by the US Air Force Office of Scientific Research (AFOSR). Two research teams made attempts to solve the project, separately, but eventually failed. “We chose this particular topic because it was difficult to believe that something wouldn't just work. Of course we received negative responses, because the project clearly stated that it was a failure,” says the three.
The trio started their speculation by changing the material of construction. They considered metamaterial, an artificially engineered material with properties that may not be found in nature, as a parameter. While Mahady formulated the mathematical model required for the construction of the smaller metamaterilised antenna, Zuboraj and Noman gave the model a realistic shape through computer simulations--the outcome of which is the world's first ever tetra band microstrip patch antenna, that is smaller in size and is metamaterialised.
In addition to a size reduction of 55 percent, their antenna is three times more efficient compared to the dual band antennas in use. Most importantly, their research has lead to the development of the first ever tetra band patch antenna in the world. “Generally, we use dual band antennas for all purposes that receive or transmit two signals simultaneously. However to operate four signals simultaneously, two individual antennas are required. But using the mathematical model and the simulations that we developed it is possible to construct a single antenna that is smaller in size and capable of dealing with four signals of different frequencies, simultaneously,” they shared.
The research work of the three has been published in international journals and IEEE (Institute of Electrical and Electronics Engineers) Antennas and Wireless Propagation Letters. Recently, EuCAP 2011, the top-ranking international Conference on Antennas and Propagation held in Italy, published a conference paper on their research.
Regarding the future of their invention the trio said, “The tetra band antenna can be used for Wi-Fi systems, mobile phones, security surveillance, spacecrafts or even satellites. We believe our invention can contribute significantly to the defence academy of Bangladesh.”
Undoubtedly, the achievement of this talented trio is the affirmation that hard work and sincere effort surely bring out the best at the end.
For more information read the next issue of Star Campus on Sunday.
We all know the ancient history of the Battle of Marathon where Pheidippides, the messenger who ran from the battle field of Marathon to Athens to announce the defeat of the Persians in the battle. In today's world of Wi-Fi and cell phones, where communication needs no running feet, this historic anecdote surely sounds like a fib.
Be it the television or internet, communication all over the globe is made fast at the speed of light! But to watch the BBC news here on your TV, at the same time as it is broadcasted in London, special devices are required which help convey the radio waves or rather information through space.
Antennas are required by any radio receiver or transmitter in order to couple its electrical connection to the electromagnetic field. Cell phone base stations, televisions, mobile phones, military communication stations all require this device to convey signals for communication.
So far dual band antennas have been in use that operates at different bands, and efforts are being made by researches all over the globe to reduce the antenna size. Aware of the current status of the work in progress, Mahdy, Zuboraj and Noman, graduates from the Department of Electrical and Electronics Engineering, Buet (Bangladesh University of Engineering and Technology), developed the first ever tetra band microstrip patch antenna. Their work started as a departmental thesis project and little did they know then that their research on 'Novel Theory and Design Procedure of Multiband Rectangular Patch Antennas Loaded with Metamaterial' would turn into a work of appreciation.
“For years, researches in the US and all over the world could not make progress in size reduction of antennas,” said the three. Reduction in antenna size was initially a project supported by the US Air Force Office of Scientific Research (AFOSR). Two research teams made attempts to solve the project, separately, but eventually failed. “We chose this particular topic because it was difficult to believe that something wouldn't just work. Of course we received negative responses, because the project clearly stated that it was a failure,” says the three.
The trio started their speculation by changing the material of construction. They considered metamaterial, an artificially engineered material with properties that may not be found in nature, as a parameter. While Mahady formulated the mathematical model required for the construction of the smaller metamaterilised antenna, Zuboraj and Noman gave the model a realistic shape through computer simulations--the outcome of which is the world's first ever tetra band microstrip patch antenna, that is smaller in size and is metamaterialised.
In addition to a size reduction of 55 percent, their antenna is three times more efficient compared to the dual band antennas in use. Most importantly, their research has lead to the development of the first ever tetra band patch antenna in the world. “Generally, we use dual band antennas for all purposes that receive or transmit two signals simultaneously. However to operate four signals simultaneously, two individual antennas are required. But using the mathematical model and the simulations that we developed it is possible to construct a single antenna that is smaller in size and capable of dealing with four signals of different frequencies, simultaneously,” they shared.
The research work of the three has been published in international journals and IEEE (Institute of Electrical and Electronics Engineers) Antennas and Wireless Propagation Letters. Recently, EuCAP 2011, the top-ranking international Conference on Antennas and Propagation held in Italy, published a conference paper on their research.
Regarding the future of their invention the trio said, “The tetra band antenna can be used for Wi-Fi systems, mobile phones, security surveillance, spacecrafts or even satellites. We believe our invention can contribute significantly to the defence academy of Bangladesh.”
Undoubtedly, the achievement of this talented trio is the affirmation that hard work and sincere effort surely bring out the best at the end.
For more information read the next issue of Star Campus on Sunday.
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