Abstract
This paper presents the circuit design .key technology and practically foreground of the L band low noise large dynamic receivers. We success to design the amplifier Attenuation switch mixer power divider detector phase and developed a low noise large dynamic zero temperature drift, also have perfect amplitude phase balance performance of I&Q two channel base band sign by special research. Many essential technical breakthroughs, for the similar production, the miniaturization, high, have reliably built the solid foundation. Meanwhile has provided the powerful safeguard for the similar greatly dynamic multi-channel receiver design development. Has achieved the very good economic efficiency and the social efficiency.
The advantage of the receiver is low-profile high reliability low noise large dynamic and excellent amplitude phase balance performance.
Keywords: Receiver Mixer Power divider I& Qdemodulator The electricity adjust-attenuator