  This paper presents an architecture for Ultrasound Beamforming using
Synthetic Transmit Aperture with Low Complexity and High SNR for medical
imaging. Synthetic Transmit Aperture is a novel approach in ultrasound imaging
system by which frame rate and image quality is increased significantly on less
data-transfer and computational requirements. The real-time beam-forming
performance of Phased Array(PA) method is limited by high computation and cost.
Thus STA method(data-transfer rate-8MB/frame) advances over the Phased Array
Method(data-transfer rate-95MB/frame) with comparitively much higher frame rate
and Signal to Noise Ratio(SNR. In this paper, we have implemented receive
beamforming using Synthetic Transmit Aperture (STA) method for eight channels
and have obtained the sample data for reconstruction of image. The experimental
results are compared with the conventional phased array and linear array
beamforming, where it can be observed that the reduction in memory requirement
and high SNR
