FEED LINE

摘要

A feed line in the form of a trip late line that runs from a waveguide/triplate-line converter coupled to a radio to a plurality of patch antennas in a cluster pattern. The width and length of a section of said feed line between the waveguide/triplate-line converter and the branch point nearest thereto are set such that the impedance of said section directly matches the parallel combination of the impedances of branches beyond said branch point and the loss in said section is kept to or below a predetermined upper limit.

主权项

1. A feed line, which is formed as a triplate line that runs from a waveguide/triplate-line converter coupled to a radio to a plurality of patch antennas in a cluster pattern, wherein a width and a length of a section interposed between the waveguide/triplate-line converter and a branch point closest to the waveguide/triplate-line converter on the feed line are set to values at which impedance of the section directly matches a parallel combination of impedances of branches ahead of the branch point and a loss of the section is suppressed to or below a preset upper limit; and the width and the length are set to values at which both or any one of a temperature and a calorific value of the feed line is suppressed within a preset limit in an environment to which the feed line is exposed under power supplied via the waveguide/triplate-line converter.