IDL - International Digital Library Of Technology & Research Volume 1, Issue 4,April 2017
Available at: www.dbpublications.org
Internati onal e-J ournal For Technol ogy And Research-2017
A Low Profile CombinedArray Antenna for Wireless Application 1
1
S. Sudhaker,2 R. Anandan, 3 S. Saranya. PG Student, R.Anandan,Associate Professor,3 S. Saranya,Assistant Professor. Department of Electronics and Communication Engineering, 2
DhanalakshmiSrinivasan College of Engineering & Technology, Chennai,Tamil Nadu, India. sudhakervpm@g mail.co m,anandandscet@gmail.co m, ssaranya85@yahoo.com.
Abstract—In
wireless communication, micro strip antenna is used for various applications such as Wireless local area network, Bluetooth, Cordless Telephones and IS M band. Here a low profile microstrip antenna is to be designed. The antenna is constructed with FR4 substrate having relative permittivity of 4.4 and thickness of 1.6 mm. The unique (symmetric) array design enhances the narrow ban dwidth an d gain. The design results in extended WLANin X-band applications. Using High Frequency S tructure S imulator (HFSS ) software package, the antenna is simulated and dimensions are adjusted to achieve the desired resonant frequencies for desired operation.
achieve required operational bands. The EM simulat ion software is used to design and optimize the patch antenna. The wide range of applicat ions in the antenna world gives the interested people to do a lot of designs and modifications. The ease of design and fabrication is a good motivation to enter such an area. The idea of this wo rk is to design unique slot with partial ground microstrip patch antenna with triple band for Wi-Fi/WiMax application, there is still the need for a solution in some areas, and the need to enhance services and applications in development in this process in techno logy. IEEE 802.16 (W iMax) operates in more than one band and these bands are categorized in t wo ways .
Keywords—Microstrip patch antenna, Ex.WLAN, Array HFSS.
I. INTRODUCTION An antenna is an electrical device wh ich converts electric currents into radio waves, and vice versa. It is usually used with a radio t ransmitter or radio receiver. The patch antennas received considerable attention in the 1970s, although the idea was explored already in 1953 and documented in 1955. Practical imp lementation started in the 1970s when suitable substrate materials became available. The microstrip patch antennas [9] are low profile and easy to fabricate using modern printed circuit technology. They are mostly used to enhance the bandwidth in mobile, radio and wireless communicat ion systems. Nowadays, microstrip patch antennas are used in many government and commercial sector applications [13]. Since the antennas are small they can be used in satellites and other high performance applications. They are also practical to use in mobile applications, radars and security systems. The microstrip patch antenna is analyzed using transmission line model. The effort has to be taken by modeling the antenna by various techniques such as slot cut, edge cut, partial ground, slotted ground, etc,. The substrate material has to be chosen carefully in the design. The mu ltiband antenna is designed and the sizes are varied to
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Table I shows the so-called bands: TABLE I
Operational W LAN Bands S. No.
1 |P a g e
License require d
Band
Frequencies
1
2.4 GHz
2.4 to 2.69 GHz
Yes
2
5.2 GHz
5.2 to 5.6 GHz.
Yes in some countrie s
3
8.2 GHz
8.15 to 8.25 GHz
No
Availability
Allocated in Brazil, Mexico, some Southeast Asian countries and the US In some countries, the 5.2 GHz to the 5.6 GHz band is allocated for broadband wireless. Many countries allow higher power output (4 watts).it’s mainly used for satellite communications.
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