The evolution of the modern wireless communication system has increased the demand of antennas, which can work on number of frequencies and should have large bandwidth to accommodate more number of channels. A high gain, wide band Ku-band antenna is realized and simulated using ADS (Advance Design Systems) simulation tool. The purposed design uses inset feed for proper impedance matching. The designed antenna has width of the patch, Wp = 49.4mm and length of the patch, Lp = 41.4mm. Taconic TLY-5 dielectric substrate is used as a substrate layer, which has dielectric constant of 2.2, and height of dielectric substrate is 1.6mm. The advantages of the resultant configurations are a) design is simple b) high Gain c) the structure remains single layer and single patch d) large bandwidth e) miniaturized size. The designed antenna provides 3.72 GHz bandwidth ranges from 11.86 GHz to 15.58 GHz at10dB return loss. For Ku-band it can be used for terrestrial microwave and radar, especially police traffic speed-detector.
The Microstrip Patch Antenna design for new emerging technologies is an area of extensive research these days because of their low profile and ease of fabrication. Antenna design presented in this paper is well suited for Wi-MAX and WLAN application. The antenna is providing -10dB bandwidth of 4.14GHz from frequency 2.5GHz to 6.6GHz which is coming under the standards of these two technologies and good results have been achieved in the return loss and radiation pattern of the antenna. The design is made of FR4 substrate with modified ground plane structure and by inserting rectangular slits between feed line and radiating patch was implemented to change the effective length of the antenna. The radiation pattern of the antenna is presented using CST Microwave Studio which is well suited for wireless application.
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