Design of low noise active integrated antenna

摘要

Active integrated antenna (AIA) is a new technology that integrates microstrip antennas with active solid state devices so that a number of interesting functions can be realized at low cost, simplicity of design and small size. In this paper, we are presenting a low noise active integrated antenna (LNAIA) that integrates active integrated antenna with low noise amplifier. This paper is designed to investigate the characteristics of patch antenna with direct integration of low noise amplifier at the design frequency of 2.5GHz. Design is analyzed with WIMAX standard and that ensured a capability of broad bandwidth and fast internet access. The LNA has the gain of 12dB and low noise figure of 2.4dB against the WIMAX design goal of > 10dB gain and > 7dB noise figure. The Antenna is designed and it has 44dB return loss and 6.3dB gain at 2.5GHz. While the LNAIA shows a better return loss of 49.66dB is 2.5GHz. This LNAIA has been designed and simulated by using CAD tool - Agilent ADS2002C-EM simulation software.