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AMPLIFIER TYPE ACTIVE ANTENNA WITH COMPACT MEANDERED LINE PASSIVE ANTENNA AT 2.45GHZ FOR WIRELESS APPLICATIONS


Mrs. Mahadik Shamala Rajaram , Dr. Uttam Laxman Bombale
Abstract

In this paper, an active antenna is proposed, where microwave amplifier is directly integrate on passive antenna. The amplifier provides required RF power to the antenna, hence improves the system efficiency. This paper presents a meandered line passive antenna, resonating at 2.45GHz for Industrial Scientific Medical band, having excellent return loss of -22dB, radiation efficiency of 35%. The microwave amplifier was designed and optimized on AWR Microwave Office software for 11dB gain and noise figure less than 2 at the frequency of 2.45GHz. The proposed amplifier type active antenna designed on FR4 substrate, having substrate height is 1.6mm and the dielectric constant of Ɛr = 4.4. In active antenna amplifier provides power to the antenna while electric parameters of active antenna are same, such as return loss is -16dB at 2.36GHz. The passive antenna is designed, analyzed and optimized on IE3D Zeland software version 15.30.

Volume 11 | 02-Special Issue

Pages: 1697-1707