Microwave antennas

摘要

A microwave antenna (10) is formed from a stack of generally planar elements (14-122) forming an array of horns (12) communicating with waveguides (38). The generally planar elements (14-22) are of metallized plastics. Each of these elements (14-22) has a given overall thickness which is constituted by a membrane of relatively small thickness formed (typically by vacuum forming) into a corrugated shape.