Balanced amplifying microstrip patch antenna at 2.4 GHz

Abstract

In this paper a balanced amplifier embedded power amplifying antenna is proposed. The advantages of an ideal balanced configuration include good isolation with improved stability; good input and output external matching; cancellation in the load of products and harmonics are considered in designing a balanced configuration for the active antenna. The noise factor is slightly more than 2.21dB, where as the gain is more than 10dB without any distortion of radiation pattern at the design frequency of 2.4 GHz.