Iaetsd dense dielectric patch array antenna-a new kind of

1. ay Antenna- A New Kind of
Low-Profile Antenna Element For 5G Cellular
Networks
By replacing the metallic patch of a microstrip antenna with a
high permittivity thin dielectric slab, a new type of patch antenna,
designated as the dense dielectric patch antenna(DD patch
antenna),is proposed. At lower microwave frequencies, it has
similar performance as the conventional metallic circular
microstrip antenna operated in the fundamental TM11 mode. This
array antenna is proposed and designed with a standard printed
circuit board(PCB) process to be suitable for integration with
radio-frequency/microwave circuitary. The proposed structure
employs four circular shaped DD patch radiator antenna elements
fed by a 1-to-4 Wilkinson power divider surrounded by an
electromagnetic bandgap (EBG)structure. The DD patch shows
better radiation and total effeciencies compared with the metallic
patch radiator. For further gain improvement, a dielectric layer of
a superstrate is applied above the array antenna. The calculated
impedance bandwidth of proposed array antenna ranges from 27.1
GHz to 29.5 GHz for reflection coeffecient (S11) less than -10dB.
The proposed design exhibits good stable radiation patterns over
the whole frequency band of interest with a total realized gain
more than 16 dBi. Due to the remarkable performance of the
proposed array, it can be considered as the best candidate for 5G
communication applications.bandgap(EBG)
A Patch Antenna is a type of radio antenna with a low profile,
which can be mounted on a flat surface. It consists of a flat
rectangular sheet or "patch" of metal, mounted over a large
sheet of metal called ground plane. The assembly is usually
contained inside a plastic radome, which protects the antenna
structure from damage. They are original type of microstrip
antenna, two metal sheets together form a resonant piece of
microstrip transmission line with a length of approximately one-
half wavelength of the radio waves. The radiation mechanism
arises from discontinuties at each truncated edge of the
microstrip transmission line. The patch antenna is usually
constructed on a dielectric substrate, using the same materials
and lithographic processes used to make PCBs.
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To overcome signal attenuation due to oxygen molecules
absorption at millimeter-wave frequencies high gain antenna
system is required. One of the main gain enhancing techniques
is using an antenna array with a proper feeding network.
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B.Praveen Balaji, R.Sriram
UG Scholar, Jaya Engineering College, Chennai.
praveenbalaji8@gmail.com,sriram3838@gmail.com
ABSTRACT
Proceedings of International Conference on Advancements in Engineering and Technology
ISBN NO : 978 - 1502893314
www.iaetsd.in
International Association of Engineering and Technology for Skill Development
54

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Proceedings of International Conference on Advancements in Engineering and Technology
ISBN NO : 978 - 1502893314
www.iaetsd.in
International Association of Engineering and Technology for Skill Development
55

3. SUPERSTARTE
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Proceedings of International Conference on Advancements in Engineering and Technology
ISBN NO : 978 - 1502893314
www.iaetsd.in
International Association of Engineering and Technology for Skill Development
56

4. We would like to thank our college staffs and officials for
providing us with constant support and encouragement.
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Proceedings of International Conference on Advancements in Engineering and Technology
ISBN NO : 978 - 1502893314
www.iaetsd.in
International Association of Engineering and Technology for Skill Development
57