Patent ID: 6842156
Filing Date: 2005-01-11
Classification: H01Q

Abstract:
1. An electromagnetic susceptibility testing apparatus comprising: a broadband, unidirectional antenna comprising an array of dipoles in side-by-side relationship, the dipoles being of progressively increasing length and spacing from a forward end to a rearward end, and being fed by a common feeder which extends in a direction from said forward end to said rearward end and alternates in phase between successive dipoles, and each dipole comprising two elements extending in opposite directions from said common feeder, wherein the elements of a plurality of adjacent ones of said dipoles, including the longest of said dipoles, are bent so that each element of said plurality of adjacent ones of said dipoles has an inner portion and an outer portion connected to each other at a bend, the inner portion extending outward from the common feeder, in substantially perpendicular relation to the common feeder, toward one of two spaces on opposite sides of said common feeder, and the outer portion extending obliquely outward and forward from the inner portion; and a device under test spaced forward of the forward end of the antenna; wherein each of said two spaces is substantially free of obstructions affecting the antenna radiation pattern, and wherein said spaces on opposite sides of said feeder are free of obstructions that are intersected by an arc centered on the bend of any of the dipoles of said plurality of adjacent ones of said dipoles and extending from a point on the obliquely extending outer Portion thereof to a point alianed with the inner portion thereof.