It introduces the lectotype of the steel structural microwave communication tower from three aspects of plane lectotype,elevation lectotype and web-member lectotype,represents the economical influences of the lectotype,and discusses the economical influences of foundation design and selection to the steel structural microwave communication tower,which will supply reference to designers.

The varied types of horizontal plane, vertical plane and branch member of the steel microwave tower are compared to find their influences on the standardized design and cost.

New steel microwave tower put forward in this thesis is a tower structure which cross section is triangle and the legs are cold-formed 60° single angles, the rest members all are cold-formed single angles.

Aiming at the construction of hydroelectric project,the task scales of equipments have been overlapped each other,puts forward a precept which is based on the CPLD,microwave communication and micro control unit technologies.

This LNA can be widely used in microwave communication areas.